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class="vector-toc-list"> </ul> </li> <li id="toc-Rivet_Top" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Rivet_Top"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.3</span> <span>Rivet Top</span> </div> </a> <ul id="toc-Rivet_Top-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Operation_Kingpin" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Operation_Kingpin"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.4</span> <span>Operation Kingpin</span> </div> </a> <ul id="toc-Operation_Kingpin-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Disco" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Disco"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.5</span> <span>Disco</span> </div> </a> <ul id="toc-Disco-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Batcat" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Batcat"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.6</span> <span>Batcat</span> </div> </a> <ul id="toc-Batcat-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Variants" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Variants"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Variants</span> </div> </a> <button aria-controls="toc-Variants-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Variants subsection</span> </button> <ul id="toc-Variants-sublist" class="vector-toc-list"> <li id="toc-USN_variants" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#USN_variants"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.1</span> <span>USN variants</span> </div> </a> <ul id="toc-USN_variants-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-USAF_variants" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#USAF_variants"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.2</span> <span>USAF variants</span> </div> </a> <ul id="toc-USAF_variants-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Operators" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Operators"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Operators</span> </div> </a> <button aria-controls="toc-Operators-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Operators subsection</span> </button> <ul id="toc-Operators-sublist" class="vector-toc-list"> <li id="toc-USAF_2" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#USAF_2"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.1</span> <span>USAF</span> </div> </a> <ul id="toc-USAF_2-sublist" class="vector-toc-list"> <li id="toc-Active_duty" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Active_duty"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.1.1</span> <span>Active duty</span> </div> </a> <ul id="toc-Active_duty-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-AFRES" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#AFRES"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.1.2</span> <span>AFRES</span> </div> </a> <ul id="toc-AFRES-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-ANG" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#ANG"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.1.3</span> <span>ANG</span> </div> </a> <ul id="toc-ANG-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-USN_2" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#USN_2"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.2</span> <span>USN</span> </div> </a> <ul id="toc-USN_2-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Accidents_and_incidents" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Accidents_and_incidents"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span><span><span>Accidents</span></span> and incidents</span> </div> </a> <ul id="toc-Accidents_and_incidents-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Surviving_aircraft" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Surviving_aircraft"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>Surviving aircraft</span> </div> </a> <ul id="toc-Surviving_aircraft-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Specifications_(WV-2/EC-121D)" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Specifications_(WV-2/EC-121D)"> <div class="vector-toc-text"> <span class="vector-toc-numb">8</span> <span>Specifications (WV-2/EC-121D)</span> </div> </a> <ul id="toc-Specifications_(WV-2/EC-121D)-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-See_also" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#See_also"> <div class="vector-toc-text"> <span class="vector-toc-numb">9</span> <span>See also</span> </div> </a> <ul id="toc-See_also-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">10</span> <span>References</span> </div> </a> <button aria-controls="toc-References-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle References subsection</span> </button> <ul id="toc-References-sublist" class="vector-toc-list"> <li id="toc-Notes" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Notes"> <div class="vector-toc-text"> <span class="vector-toc-numb">10.1</span> <span>Notes</span> </div> </a> <ul id="toc-Notes-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Citations" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Citations"> <div class="vector-toc-text"> <span class="vector-toc-numb">10.2</span> <span>Citations</span> </div> </a> <ul id="toc-Citations-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Bibliography" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Bibliography"> <div class="vector-toc-text"> <span class="vector-toc-numb">10.3</span> <span>Bibliography</span> </div> </a> <ul id="toc-Bibliography-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-External_links" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#External_links"> <div class="vector-toc-text"> <span class="vector-toc-numb">11</span> <span>External links</span> </div> </a> <ul id="toc-External_links-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Contents" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" 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class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%84%D8%A7%DA%A9%D9%87%DB%8C%D8%AF_%D8%A6%DB%8C%E2%80%8C%D8%B3%DB%8C-%DB%B1%DB%B2%DB%B1_%D9%88%D8%A7%D8%B1%D9%86%DB%8C%D9%86%DA%AF_%D8%A7%D8%B3%D8%AA%D8%A7%D8%B1" title="لاکهید ئی‌سی-۱۲۱ وارنینگ استار – Persian" lang="fa" hreflang="fa" data-title="لاکهید ئی‌سی-۱۲۱ وارنینگ استار" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Lockheed_EC-121_Warning_Star" title="Lockheed EC-121 Warning Star – French" lang="fr" hreflang="fr" data-title="Lockheed EC-121 Warning Star" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/EC-121_%EC%9B%8C%EB%8B%9D%EC%8A%A4%ED%83%80" title="EC-121 워닝스타 – Korean" lang="ko" hreflang="ko" data-title="EC-121 워닝스타" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Lockheed_EC-121_Warning_Star" title="Lockheed EC-121 Warning Star – Indonesian" lang="id" hreflang="id" data-title="Lockheed EC-121 Warning Star" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesian" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Lockheed_EC-121_Warning_Star" title="Lockheed EC-121 Warning Star – Italian" lang="it" hreflang="it" data-title="Lockheed EC-121 Warning Star" data-language-autonym="Italiano" data-language-local-name="Italian" 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<div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Airborne early warning and control aircraft based on the Constellation airframe</div> <style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) 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.infobox-full-data,.mw-parser-output .ib-aircraft-caption-left .infobox-data,.mw-parser-output .ib-aircraft-caption-left .infobox-label{text-align:left}.mw-parser-output .ib-aircraft .mergedbottomrow .infobox-full-data,.mw-parser-output .ib-aircraft .mergedbottomrow .infobox-data,.mw-parser-output .ib-aircraft .mergedbottomrow .infobox-label{border-bottom:1px solid #a2a9b1}@media(min-width:720px){.mw-parser-output .ib-aircraft .infobox-label{width:30%;padding-right:3px}.mw-parser-output .ib-aircraft .infobox-data{width:50%}}</style><table class="infobox ib-aircraft vcard"><tbody><tr><th colspan="2" class="infobox-above">EC-121 Warning Star</th></tr><tr><td colspan="2" class="infobox-full-data"><span typeof="mw:File"><a href="/wiki/File:Lockheed_EC-121D_Thailand_1972.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Lockheed_EC-121D_Thailand_1972.jpg/300px-Lockheed_EC-121D_Thailand_1972.jpg" decoding="async" width="300" height="179" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Lockheed_EC-121D_Thailand_1972.jpg/450px-Lockheed_EC-121D_Thailand_1972.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Lockheed_EC-121D_Thailand_1972.jpg/600px-Lockheed_EC-121D_Thailand_1972.jpg 2x" data-file-width="683" data-file-height="407" /></a></span> <div class="ib-aircraft-caption">EC-121T Warning Star</div></td></tr><tr><th colspan="2" class="infobox-header">General information</th></tr><tr><th scope="row" class="infobox-label">Type</th><td class="infobox-data"><a href="/wiki/Airborne_early_warning_and_control" title="Airborne early warning and control">Airborne early warning and control</a></td></tr><tr><th scope="row" class="infobox-label">National origin</th><td class="infobox-data">United States</td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Aerospace_manufacturer" title="Aerospace manufacturer">Manufacturer</a></th><td class="infobox-data"><a href="/wiki/Lockheed_Corporation" title="Lockheed Corporation">Lockheed Corporation</a></td></tr><tr><th scope="row" class="infobox-label">Primary user</th><td class="infobox-data"><a href="/wiki/United_States_Navy" title="United States Navy">United States Navy</a>, <a href="/wiki/United_States_Air_Force" title="United States Air Force">United States Air Force</a></td></tr><tr><th scope="row" class="infobox-label">Number built</th><td class="infobox-data">232</td></tr><tr><th colspan="2" class="infobox-header">History</th></tr><tr><th scope="row" class="infobox-label">Manufactured</th><td class="infobox-data">1953–1958</td></tr><tr><th scope="row" class="infobox-label">Introduction date</th><td class="infobox-data">1954</td></tr><tr><th scope="row" class="infobox-label">First flight</th><td class="infobox-data">9 June 1949</td></tr><tr><th scope="row" class="infobox-label">Retired</th><td class="infobox-data">1978 (USAF) <br /> 1982 (USN)</td></tr><tr><th scope="row" class="infobox-label">Developed from</th><td class="infobox-data"><a href="/wiki/L-749_Constellation" class="mw-redirect" title="L-749 Constellation">L-749 Constellation</a> <br /><a href="/wiki/L-1049_Super_Constellation" class="mw-redirect" title="L-1049 Super Constellation">L-1049 Super Constellation</a> <br /><a href="/wiki/C-121_Constellation" class="mw-redirect" title="C-121 Constellation">C-121 Constellation</a></td></tr></tbody></table> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Lockheed_WV-1_Barbers_Point_1952.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/be/Lockheed_WV-1_Barbers_Point_1952.jpg/220px-Lockheed_WV-1_Barbers_Point_1952.jpg" decoding="async" width="220" height="175" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/be/Lockheed_WV-1_Barbers_Point_1952.jpg/330px-Lockheed_WV-1_Barbers_Point_1952.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/be/Lockheed_WV-1_Barbers_Point_1952.jpg/440px-Lockheed_WV-1_Barbers_Point_1952.jpg 2x" data-file-width="967" data-file-height="768" /></a><figcaption>Second PO-1W prototype at NAS Barbers Point 1952</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Lockheed_WV-2_near_Hawaii_1954.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5f/Lockheed_WV-2_near_Hawaii_1954.jpg/220px-Lockheed_WV-2_near_Hawaii_1954.jpg" decoding="async" width="220" height="170" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5f/Lockheed_WV-2_near_Hawaii_1954.jpg/330px-Lockheed_WV-2_near_Hawaii_1954.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5f/Lockheed_WV-2_near_Hawaii_1954.jpg/440px-Lockheed_WV-2_near_Hawaii_1954.jpg 2x" data-file-width="790" data-file-height="609" /></a><figcaption>Third production WV-2 in flight 1954</figcaption></figure> <p>The <b>Lockheed EC-121 Warning Star</b> is an American <a href="/wiki/Airborne_early_warning_and_control" title="Airborne early warning and control">airborne early warning and control</a> radar surveillance aircraft operational in the 1950s in both the <a href="/wiki/United_States_Navy" title="United States Navy">United States Navy</a> (USN) and <a href="/wiki/United_States_Air_Force" title="United States Air Force">United States Air Force</a> (USAF). </p><p>The military version of the <a href="/wiki/Lockheed_L-1049_Super_Constellation" title="Lockheed L-1049 Super Constellation">Lockheed L-1049 Super Constellation</a> was used to serve as an airborne early warning system to supplement the <a href="/wiki/Distant_Early_Warning_Line" title="Distant Early Warning Line">Distant Early Warning Line</a>, using two large <a href="/wiki/Radome" title="Radome">radomes</a> (a vertical dome above and a horizontal one below the fuselage). It replaced the <a href="/wiki/Grumman_TBF_Avenger" title="Grumman TBF Avenger">TBM-3W</a> used by the USN. Some EC-121s were also used for <a href="/wiki/SIGINT" class="mw-redirect" title="SIGINT">signal intelligence</a> gathering. The EC-121 was introduced in 1954 and phased out in 1978, although a single specially modified EW aircraft remained in USN service until 1982. </p><p>The USN versions when initially procured were designated WV-1 (PO-1W), WV-2, and WV-3. The USAF Warning Stars served during the <a href="/wiki/Vietnam_War" title="Vietnam War">Vietnam War</a> both as electronic <a href="/wiki/Sensor" title="Sensor">sensor</a> monitors and as a forerunner to the <a href="/wiki/Boeing_E-3_Sentry" title="Boeing E-3 Sentry">Boeing E-3 Sentry</a> <a href="/wiki/Airborne_Early_Warning_and_Control" class="mw-redirect" title="Airborne Early Warning and Control">AWACS</a>. USAF aircrews adopted its civil nickname, "Connie" (diminutive of Constellation) as reference, USN aircrews used the nickname "Willie Victor". </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Development">Development</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lockheed_EC-121_Warning_Star&action=edit&section=1" title="Edit section: Development"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Since 1943, the Lockheed Constellation had been in USAAF service as the <a href="/wiki/Lockheed_C-69_Constellation" title="Lockheed C-69 Constellation">C-69</a>. The use of the Constellation by the USN for patrol and airborne early warning duties was first investigated in 1949, when the USN acquired two <a href="/wiki/Lockheed_L-749_Constellation" title="Lockheed L-749 Constellation">Lockheed L-749 Constellations</a>. First flown on 9 June 1949, the <b>PO-1W</b> carried large, long-range radars in massive radomes above and below the fuselage. As the radomes possessed considerably more side area, the vertical stabilizers of the PO-1W had to be enlarged. After the PO-1W (redesignated WV-1 in 1952) had proved that operating large radars on aircraft was possible, the USN ordered the WV-2 based on the L-1049 Super Constellation. The WV-1s were transferred to the <a href="/wiki/Federal_Aviation_Agency" class="mw-redirect" title="Federal Aviation Agency">Federal Aviation Agency</a> in 1958–1959.<sup id="cite_ref-po1w_1-0" class="reference"><a href="#cite_note-po1w-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p><p>The WV-2/EC-121D was initially fitted with a dorsal AN/APS-45 height finder and a ventral <a href="/wiki/AN/APS-20" title="AN/APS-20">AN/APS-20</a> search radar. These were later upgraded to AN/APS-103 and AN/APS-95 radars, although not simultaneously.<sup id="cite_ref-radar_3-0" class="reference"><a href="#cite_note-radar-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> The crew commonly numbered 18, six officers (two pilots, two navigators, and two weapons controllers) and 12 enlisted (two flight engineers, one radio operator, two crew chiefs, five radar operators, and two radar technicians).<sup id="cite_ref-CEE_4-0" class="reference"><a href="#cite_note-CEE-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> However, when North Korea <a href="/wiki/EC-121_shootdown_incident" class="mw-redirect" title="EC-121 shootdown incident">shot down a Navy EC-121</a> in 1969, a crew of 31 was on board.<sup id="cite_ref-bbc_5-0" class="reference"><a href="#cite_note-bbc-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p><p>Orders were placed totaling 142 PO-2W Constellations based on the Lockheed L-1049 Super Constellation, with deliveries beginning in 1953. The PO-2W was redesignated WV-2 in 1954. In 1962, with <a href="/wiki/1962_United_States_Tri-Service_aircraft_designation_system" title="1962 United States Tri-Service aircraft designation system">standardization of aircraft designations</a> within the Department of Defense, the WV-2 then became the EC-121K. In total, 13 of these were converted to WV-2Q electronic intelligence (ELINT) aircraft (becoming EC-121M in 1962). Nine were converted to WV-3 weather reconnaissance aircraft (WC-121N in 1962).<sup id="cite_ref-types_6-0" class="reference"><a href="#cite_note-types-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> The EC-121K was also operated by <a href="/wiki/VT-86" title="VT-86">Training Squadron 86 (VT-86)</a> at <a href="/wiki/NAS_Glynco" class="mw-redirect" title="NAS Glynco">NAS Glynco</a>, <a href="/wiki/Georgia_(U.S._state)" title="Georgia (U.S. state)">Georgia</a>, for training of student <a href="/wiki/Naval_flight_officer" title="Naval flight officer">naval flight officers</a> destined to fly both the EC-121 and the <a href="/wiki/Grumman_E-2_Hawkeye" title="Grumman E-2 Hawkeye">Grumman E-2 Hawkeye</a>. At NAS Glynco's closure, VT-86 transferred to <a href="/wiki/NAS_Pensacola" class="mw-redirect" title="NAS Pensacola">NAS Pensacola</a>, Florida, in 1973, the squadron's last EC-121 was also flown to NAS Pensacola, being stored in the collection of the <a href="/wiki/National_Museum_of_Naval_Aviation" class="mw-redirect" title="National Museum of Naval Aviation">National Museum of Naval Aviation</a>, where it still remains.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> A single aircraft became an NC-121K, the <a href="/wiki/Electronic_warfare" title="Electronic warfare">electronic warfare</a> variant assigned to Tactical Electronic Warfare Squadron 33 (VAQ-33) at <a href="/wiki/NAS_Key_West" class="mw-redirect" title="NAS Key West">NAS Key West</a>, Florida. The aircraft was the last EC-121 in operational service, flying until 25 June 1982.<sup id="cite_ref-firebird_8-0" class="reference"><a href="#cite_note-firebird-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p><p>The USAF received 10 RC-121C and 74 EC-121D Warning Stars also based on the L-1049, beginning with diversions from the Navy contracts in October 1953.<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> The 10 RC-121Cs became trainers, designated TC-121C. Between 1966 and 1969, 30 retired USN EC-121s were transferred to USAF and converted in EC-121Rs as sensor-monitoring aircraft. Of the 74 EC-121s, 42 were converted to the EC-121H upgrade beginning in 1962, and in 1969, 15 of the remaining EC-121Ds and seven of the EC-121Hs were further upgraded into the final operational variant, the EC-121T, serving as an AWACS prototype in Southeast Asia in 1972.<sup id="cite_ref-types_6-1" class="reference"><a href="#cite_note-types-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> Five EC-121Ds were modified to be broadcasting aircraft for <a href="/wiki/Psyops" class="mw-redirect" title="Psyops">psychological warfare operations</a>, the predecessors of the <a href="/wiki/EC-130_Commando_Solo" class="mw-redirect" title="EC-130 Commando Solo">EC-130 Commando Solo</a>.<sup id="cite_ref-psyop_10-0" class="reference"><a href="#cite_note-psyop-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Operational_service">Operational service</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lockheed_EC-121_Warning_Star&action=edit&section=2" title="Edit section: Operational service"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="USN">USN</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lockheed_EC-121_Warning_Star&action=edit&section=3" title="Edit section: USN"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Lockheed_WV-2_of_VW-15_flies_over_USS_Sellstrom_(DER-255)_off_Newfoundland,_in_March_1957.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/91/Lockheed_WV-2_of_VW-15_flies_over_USS_Sellstrom_%28DER-255%29_off_Newfoundland%2C_in_March_1957.jpg/220px-Lockheed_WV-2_of_VW-15_flies_over_USS_Sellstrom_%28DER-255%29_off_Newfoundland%2C_in_March_1957.jpg" decoding="async" width="220" height="175" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/91/Lockheed_WV-2_of_VW-15_flies_over_USS_Sellstrom_%28DER-255%29_off_Newfoundland%2C_in_March_1957.jpg/330px-Lockheed_WV-2_of_VW-15_flies_over_USS_Sellstrom_%28DER-255%29_off_Newfoundland%2C_in_March_1957.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/91/Lockheed_WV-2_of_VW-15_flies_over_USS_Sellstrom_%28DER-255%29_off_Newfoundland%2C_in_March_1957.jpg/440px-Lockheed_WV-2_of_VW-15_flies_over_USS_Sellstrom_%28DER-255%29_off_Newfoundland%2C_in_March_1957.jpg 2x" data-file-width="691" data-file-height="549" /></a><figcaption>BARLANT WV-2 of VW-15 overflies <a href="/wiki/USS_Sellstrom" title="USS Sellstrom">USS <i>Sellstrom</i></a> off Newfoundland in 1957</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Last_%22Connie%22_to_serve_the_Navy,_on_its_last_flight_to_Davis-Monthan_AFB_for_retirement_in_April_1982.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e6/Last_%22Connie%22_to_serve_the_Navy%2C_on_its_last_flight_to_Davis-Monthan_AFB_for_retirement_in_April_1982.jpg/220px-Last_%22Connie%22_to_serve_the_Navy%2C_on_its_last_flight_to_Davis-Monthan_AFB_for_retirement_in_April_1982.jpg" decoding="async" width="220" height="148" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e6/Last_%22Connie%22_to_serve_the_Navy%2C_on_its_last_flight_to_Davis-Monthan_AFB_for_retirement_in_April_1982.jpg/330px-Last_%22Connie%22_to_serve_the_Navy%2C_on_its_last_flight_to_Davis-Monthan_AFB_for_retirement_in_April_1982.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e6/Last_%22Connie%22_to_serve_the_Navy%2C_on_its_last_flight_to_Davis-Monthan_AFB_for_retirement_in_April_1982.jpg/440px-Last_%22Connie%22_to_serve_the_Navy%2C_on_its_last_flight_to_Davis-Monthan_AFB_for_retirement_in_April_1982.jpg 2x" data-file-width="700" data-file-height="470" /></a><figcaption>Last "Connie" in the USN on its last flight to <a href="/wiki/Davis-Monthan_AFB" class="mw-redirect" title="Davis-Monthan AFB">Davis-Monthan AFB</a> for retirement in April 1982, VAQ-33 (GD 12) NC-121K (BuNo 141292)</figcaption></figure> <p>WV-2s, redesignated EC-121s in 1962, served from 1954 to 1965 in two "barrier" forces, one off each coast of the North American continent. The barrier forces consisted of five surface picket stations each manned by radar <a href="/wiki/Destroyer_escorts" class="mw-redirect" title="Destroyer escorts">destroyer escorts</a> and an air wing of WV-2s/EC-121s that patrolled the picket lines at 1,000–4,000 m (3,000–12,000 ft) altitude in 6- to 20-hour missions. Their objective was to extend early warning coverage against surprise <a href="/wiki/Union_of_Soviet_Socialist_Republics" class="mw-redirect" title="Union of Soviet Socialist Republics">Soviet</a> bomber and missile attacks as an extension of the <a href="/wiki/DEW_Line" class="mw-redirect" title="DEW Line">DEW Line</a>.<sup id="cite_ref-barwv2_11-0" class="reference"><a href="#cite_note-barwv2-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> </p><p>In April 1954, the first Lockheed Super Constellation (Model 1049C), WV-2 BuNo. 128323, was received at NAS Barbers Point by Airborne Early Warning Squadron One (VW-1). </p><p>The Atlantic Barrier (BARLANT) consisted of two rotating squadron detachments sourced from AEW Squadron Thirteen (VW-13) and AEW Squadron Fifteen (VW-15) from <a href="/wiki/NAS_Patuxent_River" class="mw-redirect" title="NAS Patuxent River">NAS Patuxent River</a>, <a href="/wiki/Maryland" title="Maryland">Maryland</a> and one squadron, AEW Squadron Eleven (VW-11), permanently based at <a href="/wiki/Naval_Station_Argentia" title="Naval Station Argentia">Naval Station Argentia</a>, <a href="/wiki/Newfoundland_and_Labrador" title="Newfoundland and Labrador">Newfoundland</a>. Their mission was to fly orbits to the <a href="/wiki/Azores" title="Azores">Azores</a> and back. An additional AEW training unit was based at NAS Patuxent River for training flight crews and maintenance personnel. </p><p>BARLANT became operational on 1 July 1956, and flew continuous coverage until early 1965. The barrier was shifted to cover the approaches between <a href="/wiki/Greenland" title="Greenland">Greenland</a>, <a href="/wiki/Iceland" title="Iceland">Iceland</a>, and the <a href="/wiki/United_Kingdom" title="United Kingdom">United Kingdom</a> (<a href="/wiki/GIUK" class="mw-redirect" title="GIUK">GIUK</a>) barrier in June 1961. Aircraft from Argentia were staged through <a href="/wiki/NAS_Keflavik" class="mw-redirect" title="NAS Keflavik">NAS Keflavik</a>, <a href="/wiki/Iceland" title="Iceland">Iceland</a>, to extend coverage times.<sup id="cite_ref-barwv2_11-1" class="reference"><a href="#cite_note-barwv2-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> </p><p>The Pacific Barrier (BARPAC) received the first operational AEW squadron, Airborne Early Warning Squadron One (VW-1) and the first EC-121K aircraft. AEW Squadron Three followed with AEW Squadrons Twelve, Fourteen, and Sixteen. In January 1958 VW-1 and VW-3 relocated to NAS Agana, Guam, M.I. where VW-1 continued its AEW commitments and VW-3 operational commitment was divided between AEW and weather. BARPAC became operational with AEW Squadron Twelve (VW-12) based at <a href="/wiki/NAS_Barbers_Point" class="mw-redirect" title="NAS Barbers Point">NAS Barbers Point</a>, <a href="/wiki/Hawaii" title="Hawaii">Hawaii</a>, operating from a deployment base at <a href="/wiki/NAS_Midway" class="mw-redirect" title="NAS Midway">NAS Midway</a> on 1 July 1958 and later expanded to include AEW Squadrons Fourteen (VW-14) and Sixteen (VW-16). Their orbits overlapped the radar picket stations of the ships of Escort Squadron Seven, from roughly <a href="/wiki/Adak_Island" title="Adak Island">Adak Island</a> to Midway. Normally, five WV-2s/EC-121s were required at any single time to provide coverage over the entire line. </p><p>The Hawaiian barrier force operations were discontinued by September 1965, and their EC-121K aircraft were placed in storage. However, VW-1 continued operating until 1972, flying weather ops and supplying AEW to naval forces in the Gulf of Tonkin. USN C-121, EC-121, WC-12,1 and NC-121 operations continued until 1975 in seven other squadrons and until 1982 in an eighth. Some EC-121s were used in Vietnam, mirroring USAF EC-121 missions, but orbiting the Gulf of Tonkin, as that was the USN's assigned area. </p><p>Fleet Air Reconnaissance Squadron One (<a href="/wiki/VQ-1" title="VQ-1">VQ-1</a>) and Fleet Air Reconnaissance Squadron Two (<a href="/wiki/VQ-2" title="VQ-2">VQ-2</a>) operated EC-121M ELINT gathering aircraft at <a href="/wiki/NAF_Atsugi" class="mw-redirect" title="NAF Atsugi">NAF Atsugi</a>, <a href="/wiki/Japan" title="Japan">Japan</a>, and <a href="/wiki/Naval_Station_Rota" title="Naval Station Rota">Naval Station Rota</a>, <a href="/wiki/Spain" title="Spain">Spain</a>, respectively, until they transitioned to the <a href="/wiki/P-3_Orion" class="mw-redirect" title="P-3 Orion">EP-3B Orion</a> and EP-3E Aries aircraft. </p><p>Weather Reconnaissance Squadron Four (VW-4) operated WV-3-<i>cum</i>-WC-121s between 1954 and 1975 as <a href="/wiki/Hurricane_Hunters" class="mw-redirect" title="Hurricane Hunters">Hurricane Hunters</a>, with its primary base at <a href="/wiki/NAS_Jacksonville" class="mw-redirect" title="NAS Jacksonville">NAS Jacksonville</a>, <a href="/wiki/Florida" title="Florida">Florida</a>, and a forward base at <a href="/wiki/Naval_Station_Roosevelt_Roads" class="mw-redirect" title="Naval Station Roosevelt Roads">Naval Station Roosevelt Roads</a>, <a href="/wiki/Puerto_Rico" title="Puerto Rico">Puerto Rico</a>. Its Pacific counterpart, Weather Reconnaissance Squadron Three (VW-3) <a href="/w/index.php?title=Typhoon_Trackers&action=edit&redlink=1" class="new" title="Typhoon Trackers (page does not exist)">Typhoon Trackers</a> was the operational weather squadron in the Pacific, flying from <a href="/wiki/NAS_Agana" class="mw-redirect" title="NAS Agana">NAS Agana</a>, <a href="/wiki/Guam" title="Guam">Guam</a>, tracking typhoons from 1955 to 1960.<sup id="cite_ref-barwv2_11-2" class="reference"><a href="#cite_note-barwv2-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> On June 30, 1960 Weather Reconnaissance Squadron Three, VW-3, disbanded and many of its aircraft (8 - BuNo. 145 series) and crews were absorbed by VW-1, which retained AEW designation and took on the weather commitments and the Title of "Typhoon Trackers" of VW-3. VW-4 later transitioned to <a href="/wiki/P-3_Orion" class="mw-redirect" title="P-3 Orion">WP-3A Orion</a>. </p><p>Also operating C-121 and EC-121 aircraft was Oceanographic Development Squadron Eight (VXN-8) at <a href="/wiki/NAS_Patuxent_River" class="mw-redirect" title="NAS Patuxent River">NAS Patuxent River</a>, Maryland, which employed the aircraft for specific projects (e.g., Project BIRDSEYE, MAGNET, ASWEPS etc.) for the <a href="/wiki/Office_of_Naval_Research" title="Office of Naval Research">Office of Naval Research</a> until they were replaced by RP-3A and RP-3D Orion aircraft. VXN-8 also operated four additional NC-121 aircraft called the "Blue Eagles". These specially modified aircraft were equipped with complete radio and television transmitting equipment and studios for simultaneous broadcast of American and Vietnamese television and radio programs prior to the installation of ground stations during the Vietnam War. The aircraft flew nightly 7 days per week broadcasting such American TV programs as <i>Combat</i>, <i>Have Gun-Will Travel</i>, and <i>Gunsmoke</i>, along with other popular programs of the time in addition to Vietnamese programs recorded prior to each flight . Nightly American news broadcasts were transmitted live using an onboard TV studio and an Air Force newscaster bringing the latest news from home and the world. The "Blue Eagles" operated out of Saigon and Danang Air Bases for around 5 years commencing in 1965. </p><p>Air Development Squadron Six (<a href="/wiki/VX-6" title="VX-6">VX-6</a>, based at <a href="/wiki/NAS_Quonset_Point" class="mw-redirect" title="NAS Quonset Point">NAS Quonset Point</a>, Rhode Island, also operated <a href="/wiki/R7V" class="mw-redirect" title="R7V">R7V</a> aircraft, redesignated C-121J, in support of <a href="/wiki/United_States_Antarctic_Program" title="United States Antarctic Program">United States Antarctic Program</a> operations until replaced by <a href="/wiki/C-130_Hercules" class="mw-redirect" title="C-130 Hercules">LC-130F Hercules</a> aircraft. </p><p>The EC-121 was also operated by <a href="/wiki/Training_Squadron_86" class="mw-redirect" title="Training Squadron 86">Training Squadron 86</a> (VT-86) at <a href="/wiki/NAS_Glynco" class="mw-redirect" title="NAS Glynco">NAS Glynco</a>, Georgia, for training student naval flight officers destined for the <a href="/wiki/E-2_Hawkeye" class="mw-redirect" title="E-2 Hawkeye">E-2 Hawkeye</a> and by Tactical Electronic Warfare Squadron 33 (<a href="/wiki/VAQ-33" title="VAQ-33">VAQ-33</a>) for the Fleet Electronic Warfare Systems Group (<a href="/wiki/FEWSG" class="mw-redirect" title="FEWSG">FEWSG</a>) at <a href="/wiki/NAS_Norfolk" class="mw-redirect" title="NAS Norfolk">NAS Norfolk</a>, Virginia, and later, following a squadron homeport change, at NAS Key West, Florida. At the time of its retirement on June 25, 1982, VAQ-33's NC-121K aircraft, Buno 141292 was the last NC-121K and the last of its type operated by the USN. </p> <div class="mw-heading mw-heading3"><h3 id="USAF">USAF</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lockheed_EC-121_Warning_Star&action=edit&section=4" title="Edit section: USAF"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The USAF operated EC-121s between 1954 and 1978, with three wings at maximum employment and three independent squadrons as operations wound down. Until the Vietnam War, their primary mission was to provide complementary early warning radar coverage to the Pacific and Atlantic barriers by flying orbits 300 miles (480 km) offshore from the continental United States in what were termed "contiguous barriers". The coverage orbits overlapped those of land-based early warning radars. </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Lockheed_EC-121D_in_hangar.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/10/Lockheed_EC-121D_in_hangar.jpg/220px-Lockheed_EC-121D_in_hangar.jpg" decoding="async" width="220" height="145" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/10/Lockheed_EC-121D_in_hangar.jpg/330px-Lockheed_EC-121D_in_hangar.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/10/Lockheed_EC-121D_in_hangar.jpg/440px-Lockheed_EC-121D_in_hangar.jpg 2x" data-file-width="798" data-file-height="527" /></a><figcaption>552nd AEWCW EC-121D at McClellan AFB</figcaption></figure> <p>Initial deployment of EC-121Cs began with <a href="/wiki/551st_Electronic_Systems_Wing" class="mw-redirect" title="551st Electronic Systems Wing">551st Airborne Early Warning and Control Wing</a>, based at <a href="/wiki/Otis_Air_Force_Base" class="mw-redirect" title="Otis Air Force Base">Otis Air Force Base</a>, <a href="/wiki/Massachusetts" title="Massachusetts">Massachusetts</a>. Operational on 21 December 1954, 551st AEWCW subsequently upgraded to EC-121D and later EC-121H Warning Stars. </p><p>Its Pacific counterpart was <a href="/wiki/552d_Air_Control_Wing" class="mw-redirect" title="552d Air Control Wing">552d Airborne Early Warning and Control Wing (AEWCW)</a>, based at <a href="/wiki/McClellan_Air_Force_Base" title="McClellan Air Force Base">McClellan Air Force Base</a>, <a href="/wiki/California" title="California">California</a>, becoming operational on 1 July 1955. After the <a href="/wiki/Cuban_Missile_Crisis" title="Cuban Missile Crisis">Cuban Missile Crisis</a> in 1962, 552nd AEWCW also had administrative control of the <a href="/wiki/966th_Airborne_Air_Control_Squadron" title="966th Airborne Air Control Squadron">966th AEWCS</a>, based at <a href="/wiki/McCoy_Air_Force_Base" title="McCoy Air Force Base">McCoy Air Force Base</a>, Florida. The 966th had a dual mission - monitoring activity in <a href="/wiki/Cuba" title="Cuba">Cuban</a> airspace and flying Gold Digger missions (continuous tracks of U-2 surveillance missions).<sup id="cite_ref-golddigger_12-0" class="reference"><a href="#cite_note-golddigger-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> </p><p>The third air wing to operate EC-121s was <a href="/wiki/553rd_Reconnaissance_Wing" class="mw-redirect" title="553rd Reconnaissance Wing">553rd Reconnaissance Wing</a>, a Vietnam war organization activated in 1967 and based in <a href="/wiki/Thailand" title="Thailand">Thailand</a> until inactivation in 1970 (See <a href="/wiki/EC-121_Warning_Star#Batcat" class="mw-redirect" title="EC-121 Warning Star">BatCat</a> below). In 1966, Lockheed modified 30 ex-USN Super Constellations (two EC-121P/WV-3 and 28 EC-121K/WV-2) aircraft to EC-121Rs for the specialized reconnaissance mission flown by the 553rd. Aircraft were delivered during the course of 1967. The 553rd RW flew over land and off the coast of Vietnam, over <a href="/wiki/Laos" title="Laos">Laos</a> and <a href="/wiki/Cambodia" title="Cambodia">Cambodia</a>, monitoring and retransmitting low-power signals. Usually, they orbited the <a href="/wiki/Ho_Chi_Minh_Trail" class="mw-redirect" title="Ho Chi Minh Trail">Ho Chi Minh Trail</a> in 8-hour shifts. As it was expensive to operate and it exposed a large crew to enemy fire, it was replaced in December 1970 by the much smaller (and eventually unmanned drone) <a href="/wiki/Beechcraft_Bonanza#QU-22_Pave_Eagle" title="Beechcraft Bonanza">QU-22 Pave Eagle</a> sensor monitor.<sup id="cite_ref-jtc_13-0" class="reference"><a href="#cite_note-jtc-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> </p><p>The 551st AEWCW inactivated in 1969, while the 552d was reduced by a squadron in 1971. In July 1974, USAF redesignated 552d Airborne Early Warning and Control Wing as 552d Airborne Warning and Control Group when it was downsized to a single squadron. It inactivated in April 1976. </p><p>As the USAF prepared for deploying the E-3 Sentry in the later 1970s, it phased out EC-121 operations by the end of 1975. All remaining EC-121s transferred to <a href="/wiki/Air_Force_Reserve" class="mw-redirect" title="Air Force Reserve">Air Force Reserve</a>, which formed the <a href="/wiki/79th_Air_Refueling_Squadron" title="79th Air Refueling Squadron">79th AEWCS</a> at <a href="/wiki/Homestead_Air_Force_Base" class="mw-redirect" title="Homestead Air Force Base">Homestead Air Force Base</a>, Florida, in early 1976. The active duty force continued providing personnel to operate the EC-121s on a 24-hour basis, assigning Detachment 1, 20th Air Defence Squadron to Homestead AFB as associate active duty crews to fly the AFRES-owned aircraft. Besides monitoring Cuban waters, these last Warning Stars also operated from NAS Keflavik. Final EC-121 ops ended in September 1978. Detachment 1 dissolved and 79th AEWCS was redesignated a fighter squadron on 1 October 1978. </p><p>In 1967, five EC-121s became operational with the <a href="/wiki/193d_Special_Operations_Wing" class="mw-redirect" title="193d Special Operations Wing">193rd Tactical Electronic Warfare Squadron</a> of the <a href="/wiki/Pennsylvania_Air_National_Guard" title="Pennsylvania Air National Guard">Pennsylvania Air National Guard</a>, responsible for psychological operations missions under project <a href="/w/index.php?title=Coronet_Solo&action=edit&redlink=1" class="new" title="Coronet Solo (page does not exist)">Coronet Solo</a>. From July 1970 to January 1971, they rotated on 30- to 90-day temporary-duty deployments to <a href="/wiki/Korat_Royal_Thai_Air_Force_Base" title="Korat Royal Thai Air Force Base">Korat Royal Thai Air Force Base</a>, Thailand, under the name <i>Commando Buzz</i>.<sup id="cite_ref-psyop_10-1" class="reference"><a href="#cite_note-psyop-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Vietnam_War">Vietnam War</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lockheed_EC-121_Warning_Star&action=edit&section=5" title="Edit section: Vietnam War"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>EC-121s were used extensively in Southeast Asia between 16 April 1965, and 1 June 1974, particularly in support of <a href="/wiki/Operation_Rolling_Thunder" title="Operation Rolling Thunder">Operation Rolling Thunder</a> and <a href="/wiki/Operation_Linebacker" title="Operation Linebacker">Operation Linebacker</a>/<a href="/wiki/Operation_Linebacker_II" title="Operation Linebacker II">Linebacker II</a>, providing radar early warning and limited airborne control of USAF fighter forces engaging MiG interceptors.<sup id="cite_ref-CEE_4-1" class="reference"><a href="#cite_note-CEE-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-ec121_14-0" class="reference"><a href="#cite_note-ec121-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> Flying orbits over the Gulf of Tonkin and later over Laos, they were the forerunners of AWACS aircraft. The USN used a variant, the NC-121, in their Blue Eagle unit from 1965–1972. Blue Eagles were television- and radio-broadcasting airplanes. The Blue Eagles were based at NAS Patuxent River and were part of oceanographic squadron VXN-8. </p> <div class="mw-heading mw-heading3"><h3 id="Big_Eye">Big Eye</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lockheed_EC-121_Warning_Star&action=edit&section=6" title="Edit section: Big Eye"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:552_airborne_early_warning_and_control_wing-shield.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/5/5a/552_airborne_early_warning_and_control_wing-shield.jpg" decoding="async" width="207" height="210" class="mw-file-element" data-file-width="207" data-file-height="210" /></a><figcaption></figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Lockheed_EC-121D_interior.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/ed/Lockheed_EC-121D_interior.jpg/220px-Lockheed_EC-121D_interior.jpg" decoding="async" width="220" height="170" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/ed/Lockheed_EC-121D_interior.jpg/330px-Lockheed_EC-121D_interior.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/ed/Lockheed_EC-121D_interior.jpg/440px-Lockheed_EC-121D_interior.jpg 2x" data-file-width="949" data-file-height="733" /></a><figcaption>Operators in a USAF EC-121D/T</figcaption></figure> <p>At the onset of Rolling Thunder, the North Vietnamese had an advantage in that their radar coverage could detect most US strike aircraft flying at or above 5,000 feet (1,500 m) virtually anywhere in the country, using a system that was difficult to jam. US forces countered with radar ships (<i>Crown</i>) in the Gulf of Tonkin and a ground site at <a href="/wiki/Nakhon_Phanom_RTAFB" class="mw-redirect" title="Nakhon Phanom RTAFB">Nakhon Phanom RTAFB</a>, Thailand, but both systems were <a href="/wiki/Line-of-sight_propagation" title="Line-of-sight propagation">line-of-sight</a> and suffered coverage gaps. </p><p>To increase coverage, the <a href="/wiki/Seventh_Air_Force" title="Seventh Air Force">Seventh Air Force</a> (7 AF) requested airborne radar support and the <a href="/wiki/Air_Defense_Command" class="mw-redirect" title="Air Defense Command">Air Defense Command</a> (redesignated <a href="/wiki/Aerospace_Defense_Command" title="Aerospace Defense Command">Aerospace Defense Command</a> in 1968) was directed to set up the <i>Big Eye Task Force</i>. Five EC-121Ds and 100 support personnel of the 552nd AEWCW at McClellan AFB were deployed to <a href="/wiki/Tainan_Airport" title="Tainan Airport">Tainan Air Station</a>, <a href="/wiki/Taiwan" title="Taiwan">Taiwan</a>, with four of the EC-121s sent on to a forward operating location at <a href="/wiki/Tan_Son_Nhut_Air_Base" title="Tan Son Nhut Air Base">Tan Son Nhut Air Base</a>, near <a href="/wiki/Saigon" class="mw-redirect" title="Saigon">Saigon</a>, <a href="/wiki/South_Vietnam" title="South Vietnam">South Vietnam</a>.<sup id="cite_ref-15" class="reference"><a href="#cite_note-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> </p><p>The EC-121s were designed for detection of aircraft flying over water, so ground clutter (spurious signal returns off of terrain features such as mountains) caused interference with their radar pictures. The crews, however, were experienced in tracking <a href="/wiki/Soviet_Union" title="Soviet Union">Soviet</a> aircraft over Cuba and had developed a technique whereby an EC-121 flying at 50 feet (15 m) to 300 feet (91 m) above water could bounce a signal from its bottom-mounted APS-95 Search radar off the surface of the water and detect aircraft at medium altitudes out to 150 miles (240 km). Operating in pairs, one Big Eye EC-121 flew a 50 miles (80 km) <a href="/wiki/Race_track" title="Race track">race track</a> pattern approximately 30 miles (48 km) offshore (Alpha orbit), with the orbit's center at <span class="geo-inline"><style data-mw-deduplicate="TemplateStyles:r1156832818">.mw-parser-output .geo-default,.mw-parser-output .geo-dms,.mw-parser-output .geo-dec{display:inline}.mw-parser-output .geo-nondefault,.mw-parser-output .geo-multi-punct,.mw-parser-output .geo-inline-hidden{display:none}.mw-parser-output .longitude,.mw-parser-output .latitude{white-space:nowrap}</style><span class="plainlinks nourlexpansion"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=Lockheed_EC-121_Warning_Star&params=19_25_N_107_25_E_"><span class="geo-default"><span class="geo-dms" title="Maps, aerial photos, and other data for this location"><span class="latitude">19°25′N</span> <span class="longitude">107°25′E</span></span></span><span class="geo-multi-punct"> / </span><span class="geo-nondefault"><span class="geo-dec" title="Maps, aerial photos, and other data for this location">19.417°N 107.417°E</span><span style="display:none"> / <span class="geo">19.417; 107.417</span></span></span></a></span></span>. The second one flew a track at 10,000 feet (3,000 m) (Bravo orbit) farther from the coast, acting as a spare for the Alpha EC-121.<sup id="cite_ref-CEE_4-2" class="reference"><a href="#cite_note-CEE-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p><p>This provided a practical detection range of 100 miles (160 km), enough to cover the <a href="/wiki/Hanoi" title="Hanoi">Hanoi</a> urban area and the main MiG base at <a href="/wiki/Ph%C3%BAc_Y%C3%AAn_Air_Base" title="Phúc Yên Air Base">Phúc Yên</a>. A major disadvantage of this arrangement, however, was that most MiG contacts were beyond the 70 miles (110 km) range of the Big Eye's APS-45 Height Finder radar, so that they were unable to provide this data to USAF strike forces. Furthermore, technical shortcomings in the EC-121D's systems precluded either controlling a fighter intercept or identifying a specific flight under attack.<sup id="cite_ref-16" class="reference"><a href="#cite_note-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> </p><p>The missions from Tan Son Nhut AB began 21 April 1965, using callsigns Ethan Alpha and Ethan Bravo, which became standard. After refueling at <a href="/wiki/Danang_Air_Base" class="mw-redirect" title="Danang Air Base">Danang Air Base</a>, Ethan Alpha made a wave-top approach to its orbit station, where it remained for five hours. Because of the threat of MiG interception, EC-121s were protected by a <a href="/wiki/Lockheed_F-104_Starfighter" title="Lockheed F-104 Starfighter">Lockheed F-104 Starfighter</a> <a href="/wiki/Combat_Air_Patrol" class="mw-redirect" title="Combat Air Patrol">MiGCAP</a>. If, for any reason, the MiGCAP could not rendezvous, the EC-121s cancelled their mission. Air-conditioning systems aboard the EC-121 were virtually useless in this profile, and the heat produced by the electronics, combined with the threat of being shot down, made Alpha orbit missions in particular very stressful.<sup id="cite_ref-17" class="reference"><a href="#cite_note-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup> On 10 July 1965, in its first airborne-controlled interception, an EC-121 provided warning to a pair of USAF <a href="/wiki/McDonnell_Douglas_F-4_Phantom_II" title="McDonnell Douglas F-4 Phantom II">F-4C</a> fighters, resulting in the shooting down of two <a href="/wiki/Mikoyan-Gurevich_MiG-17" title="Mikoyan-Gurevich MiG-17">MiG-17s</a>.<sup id="cite_ref-CEE_4-3" class="reference"><a href="#cite_note-CEE-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p><p>The Big Eye Task Force remained at Tan Son Nhut until February 1967, when the threat of <a href="/wiki/Viet_Cong" title="Viet Cong">Viet Cong</a> ground attacks prompted a move to Thailand. </p> <div class="mw-heading mw-heading3"><h3 id="College_Eye">College Eye</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lockheed_EC-121_Warning_Star&action=edit&section=7" title="Edit section: College Eye"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In March 1967, Big Eye was renamed <i>College Eye Task Force</i> (CETF) and relocated at <a href="/wiki/Ubon_Royal_Thai_Air_Force_Base" title="Ubon Royal Thai Air Force Base">Ubon Royal Thai Air Force Base</a>. Because of the complexity of the aircraft and its systems along with the large support group it required, CETF could not be supported at the relatively small Thai bases. It moved to <a href="/wiki/Udon_Thani_International_Airport" title="Udon Thani International Airport">Udon RTAFB</a> in July and to its final station at Korat RTAFB in October 1967.<sup id="cite_ref-18" class="reference"><a href="#cite_note-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup> Seven of 26 EC-121s deployed from Otis AFB and arrived at Korat, on the 19th.<sup id="cite_ref-19" class="reference"><a href="#cite_note-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup> </p><p>From April 1965 to early 1966 and beginning again in late 1967, the EC-121Ds also controlled a flight of MiGCAP fighters for unarmed support aircraft operating over the Tonkin Gulf. The EC-121Ds also served as an airborne communications relay center for strike aircraft to transmit mission results and position reports to Danang Air Control Center; directed operations of fighter escorts, MiGCAPs, <a href="/wiki/Lockheed_C-130_Hercules" title="Lockheed C-130 Hercules">Lockheed C-130 Hercules</a> flare ships and <a href="/wiki/Douglas_A-26_Invader" title="Douglas A-26 Invader">A-26</a> strike aircraft along the North Vietnamese-Laotian border; provided radar and navigational assistance for <a href="/wiki/Combat_search_and_rescue" title="Combat search and rescue">combat search and rescue</a> missions; and assisted fighters in finding <a href="/wiki/Tanker_(aircraft)" class="mw-redirect" title="Tanker (aircraft)">tankers</a> for emergency refueling. </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Lockheed_EC-121s_at_Korat_RTAFB.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e3/Lockheed_EC-121s_at_Korat_RTAFB.jpg/220px-Lockheed_EC-121s_at_Korat_RTAFB.jpg" decoding="async" width="220" height="161" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e3/Lockheed_EC-121s_at_Korat_RTAFB.jpg/330px-Lockheed_EC-121s_at_Korat_RTAFB.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e3/Lockheed_EC-121s_at_Korat_RTAFB.jpg/440px-Lockheed_EC-121s_at_Korat_RTAFB.jpg 2x" data-file-width="894" data-file-height="654" /></a><figcaption>College Eye EC-121D taking off from Korat RTAFB</figcaption></figure> <p>In May 1966, the government of China formally protested an incursion by a <a href="/wiki/Republic_F-105_Thunderchief" title="Republic F-105 Thunderchief">Republic F-105 Thunderchief</a> pursuing a North Vietnamese MiG it subsequently shot down 25 miles (40 km) inside Chinese territory. A US board of inquiry recommended that College Eye also had to monitor the "<a href="/wiki/No-fly_zone" title="No-fly zone">no-fly zone</a>" inside the North Vietnamese border with China, to provide alerts to US aircraft nearing the buffer zone and to report border crossing violations by US aircraft.<sup id="cite_ref-CEE_4-4" class="reference"><a href="#cite_note-CEE-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> This could not be done from the gulf, so a third orbit, Ethan Charlie, was created in Laos. After tests in June and August, regular missions began 24 August. Not enough EC-121s or crews were available to support three orbits twice daily, so the Laotian orbit was only flown every third day, with Ethan Bravo missions cancelled on those days. After 13 October 1966, the Charlie orbit was flown every day and the Bravo orbit suspended altogether. In April 1967, four more EC-121s were deployed, to Thailand on 29 May, making for a total strength of three College Eyes in Taiwan and six in Thailand.<sup id="cite_ref-CEE_4-5" class="reference"><a href="#cite_note-CEE-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p><p>In April 1967, USAF began fitting its entire EC-121 fleet with QRC-248 <a href="/wiki/Secondary_surveillance_radar" title="Secondary surveillance radar">IFF</a> <a href="/wiki/Transponder_(aviation)" class="mw-redirect" title="Transponder (aviation)">transponder</a> interrogators. QRC-248 had been developed to follow <a href="/wiki/Soviet" class="mw-redirect" title="Soviet">Soviet</a>-export aircraft flown by the <a href="/wiki/Military_of_Cuba" class="mw-redirect" title="Military of Cuba">Cuban Air Force</a>. The SRO-2 transponders installed in Soviet export MiGs enabled Cuban <a href="/wiki/Ground-controlled_interception" title="Ground-controlled interception">ground-controlled interception</a> (GCI) radars to identify and control their fighters. A testbed EC-121 called <i>Quick Look</i> had flown with College Eye in January 1967 to test QRC-248 and found that North Vietnamese MiGs used the same transponder. QRC-248 accurately discriminated MiG radar returns from the myriad returns picked up during a mission and extended the range of low-altitude detection to more than 175 miles (282 km), covering virtually all important North Vietnamese target areas.<sup id="cite_ref-m100_20-0" class="reference"><a href="#cite_note-m100-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup> </p><p>By May, all College Eyes had been fitted with QRC-248. Ethan Bravo's mission was changed from that of a backup for Ethan Alpha to being the primary QRC-248 listener, but College Eye was prohibited by the <a href="/wiki/Joint_Chiefs_of_Staff" title="Joint Chiefs of Staff">Joint Chiefs of Staff</a> from actively "interrogating" MiG transponders, following a <a href="/wiki/National_Security_Agency" title="National Security Agency">National Security Agency</a> security policy protecting its "intelligence sources" (of which the QRC-248 was one), thus was restricted to waiting for North Vietnamese GCI to interrogate its aircraft. QRC-248 began regular use in July 1967, but by then North Vietnam's MiG force, which had suffered serious losses in May, had suspended its combat operations.<sup id="cite_ref-m100_20-1" class="reference"><a href="#cite_note-m100-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup> </p><p>In the last week of August, however, after a period of intensive training and revision of tactics, the MiGs began engaging US strike forces again, scoring a number of kills. Then, Seventh Air Force finally obtained permission for the new Ethan Bravo mission EC-121 to actively interrogate with QRC-248 on 6 October. By 4 December, its success outweighed any value in flying the Ethan Alpha orbit, which was discontinued until July 1972.<sup id="cite_ref-CEE_4-6" class="reference"><a href="#cite_note-CEE-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-21" class="reference"><a href="#cite_note-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup> </p><p>On 1 March 1968, College Eye callsigns changed to Ethan 01, 02, 03 and 04. Ethan 03 (Laotian orbit) began "positive control" (airborne direction) of C-130 flareship flights and A-26 Invader night interdiction missions along the Ho Chi Minh Trail in Laos on 19 April 1968.<sup id="cite_ref-CEE_4-7" class="reference"><a href="#cite_note-CEE-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p><p>The task force was scaled back in July 1968, to four EC-121Ds and the <i>Rivet Top</i> testbed aircraft to allow for the basing of another College Eye detachment at <a href="/wiki/Itazuke_AB" class="mw-redirect" title="Itazuke AB">Itazuke AB</a>, Japan.<sup id="cite_ref-CEE_4-8" class="reference"><a href="#cite_note-CEE-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> The name of the task force was discontinued in October 1968, when it was redesignated a final time as Detachment 1 (Rotational), 552nd AEWCW. EC-121 deployments to Southeast Asia were discontinued in June 1970 in the expectation that they would no longer be used.<sup id="cite_ref-Michel,_Clashes,_193_22-0" class="reference"><a href="#cite_note-Michel,_Clashes,_193-22"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Rivet_Top">Rivet Top</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lockheed_EC-121_Warning_Star&action=edit&section=8" title="Edit section: Rivet Top"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Lockheed_EC-121K_Rivet_Top_Korat_1968.jpeg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/23/Lockheed_EC-121K_Rivet_Top_Korat_1968.jpeg/220px-Lockheed_EC-121K_Rivet_Top_Korat_1968.jpeg" decoding="async" width="220" height="222" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/23/Lockheed_EC-121K_Rivet_Top_Korat_1968.jpeg/330px-Lockheed_EC-121K_Rivet_Top_Korat_1968.jpeg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/23/Lockheed_EC-121K_Rivet_Top_Korat_1968.jpeg/440px-Lockheed_EC-121K_Rivet_Top_Korat_1968.jpeg 2x" data-file-width="580" data-file-height="586" /></a><figcaption>EC-121K "Rivet Top" (AF Ser. No. 57-143184) at Korat RTAFB, 1967–1968. This was a former USN EC-121K, BuNo 143184, transferred to USAF and modified.</figcaption></figure> <p>In August 1967, while the College Eye Task Force was still based at Udon RTAFB, another prototype EC-121 variation began operations testing new equipment as Detachment 2 of the Tactical Air Warfare Center. Known as <i>Rivet Top</i>,<sup id="cite_ref-23" class="reference"><a href="#cite_note-23"><span class="cite-bracket">[</span>N 1<span class="cite-bracket">]</span></a></sup> this modified EC-121K (later redesignated EC-121M) carried the QRC-248 newly installed in the College Eye aircraft and also had electronic interrogators capable of reading two additional Soviet transponders, the SRO-1 and SOD-57. Its electronics were custom built rather than off-the-shelf.<sup id="cite_ref-24" class="reference"><a href="#cite_note-24"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup> Its most important upgrade was the top-secret <i>Rivet Gym</i> installation. This consisted of the addition to the crew of Vietnamese-speaking intelligence specialists manning four voice communications intercept stations able to monitor all communications between the MiGs and their GCI controllers. </p><p>Despite this advantage, Rivet Top experienced two problems, reducing its effectiveness. Its operators did not have radar scopes to correlate intercepted conversations with specific flights of MiGs, thus could not determine which US aircraft might be under attack. Secondly, like QRC-248, Rivet Gym was an NSA SIGINT asset and subject to even more stringent rules protecting knowledge of its existence. Even when real-time warnings to US aircraft were finally permitted in mid-1972, fighter crews were not made aware of the source of the warnings and because EC-121 radio communications were poor, mandating the use of a radio relay aircraft that often failed, they tended to disregard the credibility of the source.<sup id="cite_ref-25" class="reference"><a href="#cite_note-25"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup> </p><p>The Rivet Top prototype moved to Korat RTAFB along with the College Eye Task Force in October 1967. Originally scheduled to return to the USA in February 1968, because of its value, it remained at Korat until 1969. Flying daily missions through its testing period, it began flying every-other-day missions over the Gulf of Tonkin after 31 March 1968, when Rolling Thunder operations were sharply scaled back. Rivet Gym installations were back-fitted to all College Eye EC-121s by the end of May 1968. </p> <div class="mw-heading mw-heading3"><h3 id="Operation_Kingpin">Operation Kingpin</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lockheed_EC-121_Warning_Star&action=edit&section=9" title="Edit section: Operation Kingpin"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Two EC-121Ds, newly modified with the Southeast Asia Operational Requirement 62 (SEAOR-62) electronics suite, but not yet operational as EC-121Ts, were ordered to Korat RTAFB in October 1970. Under the guise of being field tested, they were accompanied by a C-121G carrying additional crew members, the most experienced 552nd AEWCW technicians, and equipment necessary to maintain the new electronics. The SEAOR-62 package was supported by a digital data receiver ground terminal and by radio relay equipment transshipped by separate classified airlift. The EC-121Ts arrived in Thailand from McClellan AFB on 12 November.<sup id="cite_ref-26" class="reference"><a href="#cite_note-26"><span class="cite-bracket">[</span>25<span class="cite-bracket">]</span></a></sup> </p><p>The purpose of the deployment was to provide an integrated tactical data display with real-time inputs (similar to the Navy <a href="/wiki/Naval_Tactical_Data_System" title="Naval Tactical Data System">Airborne Tactical Data System</a> equipping <a href="/wiki/E-1B_Tracer" class="mw-redirect" title="E-1B Tracer">E-1B Tracer</a> platforms of <a href="/wiki/Task_Force_77_(U.S._Navy)" class="mw-redirect" title="Task Force 77 (U.S. Navy)">Task Force 77</a>) in support of <a href="/wiki/Operation_Ivory_Coast" title="Operation Ivory Coast">Operation Kingpin</a>, a mission to rescue US <a href="/wiki/Prisoner_of_war" title="Prisoner of war">prisoners of war</a> held at <a href="/wiki/Son_Tay" class="mw-redirect" title="Son Tay">Son Tay</a> prison.<sup id="cite_ref-27" class="reference"><a href="#cite_note-27"><span class="cite-bracket">[</span>26<span class="cite-bracket">]</span></a></sup> Once at Korat, some equipment was tested for the first time because of emission restrictions in US airspace and the only available manuals and checklists were notes from early flight tests. Even so, both aircraft were operational by 17 November.<sup id="cite_ref-28" class="reference"><a href="#cite_note-28"><span class="cite-bracket">[</span>27<span class="cite-bracket">]</span></a></sup> </p><p>On 20 November 1970, two Warning Stars, using the callsigns Frog 01 and 02, respectively, took off 10 minutes apart at 22:00 from Korat to take station at the low-altitude Alpha orbit over the Gulf of Tonkin, with Frog 02 as a backup. The 17-man crews were advised in the air of the nature of the rescue mission and their role, providing MiG warning and directing USAF F-4 Phantom CAP intercepts. As Frog 01 began its climb to the higher Bravo orbit, it experienced a ruptured oil line forcing shutdown of one engine. As planned, Frog 02 became the primary aircraft when Frog 01 made an emergency landing at Danang.<sup id="cite_ref-29" class="reference"><a href="#cite_note-29"><span class="cite-bracket">[</span>28<span class="cite-bracket">]</span></a></sup> </p><p>The new equipment failed to function properly aboard Frog 02. The ground receivers at the command post in Danang failed to receive data and the <a href="/wiki/Identification_friend_or_foe" title="Identification friend or foe">APX-83 IFF</a> processors would not display aboard the aircraft, despite repeated repairs. Their own radar monitors experienced excessive electronic noise and the jamming of North Vietnamese radars by nearby <a href="/wiki/Douglas_A-3_Skywarrior" title="Douglas A-3 Skywarrior">EKA-3B Skywarriors</a> hindered efforts of the radar technicians to correct the problems. While unable to provide vectoring information to the F-4s escorting the mission, Frog 02 remained on station and relied on its Rivet Top voice intercept capability to provide supplementary data.<sup id="cite_ref-30" class="reference"><a href="#cite_note-30"><span class="cite-bracket">[</span>29<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Disco">Disco</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lockheed_EC-121_Warning_Star&action=edit&section=10" title="Edit section: Disco"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Lockheed_EC-121D_at_Korat_Sep_1970.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/3c/Lockheed_EC-121D_at_Korat_Sep_1970.jpg/220px-Lockheed_EC-121D_at_Korat_Sep_1970.jpg" decoding="async" width="220" height="166" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/3c/Lockheed_EC-121D_at_Korat_Sep_1970.jpg/330px-Lockheed_EC-121D_at_Korat_Sep_1970.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/3c/Lockheed_EC-121D_at_Korat_Sep_1970.jpg/440px-Lockheed_EC-121D_at_Korat_Sep_1970.jpg 2x" data-file-width="935" data-file-height="707" /></a><figcaption>EC-121D, AF Ser. No. 53-0555 at Korat RTAFB September 1970</figcaption></figure> <p>In October 1971, North Vietnamese MiGs, operating from forward bases opened after the end of Rolling Thunder, began a campaign to intercept <a href="/wiki/Boeing_B-52_Stratofortress" title="Boeing B-52 Stratofortress">Boeing B-52 Stratofortress</a> missions over southern Laos. On 20 November, a MiG-21 launched air-to-air missiles at a B-52 that evaded by dropping flares. As a result, Warning Stars of Det. 1 returned to Korat RTAFB to provide radar support by flying the Laotian orbit again, using callsign <i>Disco</i>.<sup id="cite_ref-Michel,_Clashes,_193_22-1" class="reference"><a href="#cite_note-Michel,_Clashes,_193-22"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup> Seven EC-121Ts, replacement aircraft for the earlier series, were based in Thailand and contained both QRC-248 and Rivet Top electronic suites. </p><p>When Operation Linebacker began on 10 May 1972, Disco was one of two principal GCI radars used by US forces,<sup id="cite_ref-32" class="reference"><a href="#cite_note-32"><span class="cite-bracket">[</span>N 2<span class="cite-bracket">]</span></a></sup> although it continued to be handicapped by poor radio communications. In addition, its slow-turning radar limited its value as a controller of fighters during MiG engagements, while the size of USAF raids during Linebacker nearly saturated its capabilities.<sup id="cite_ref-33" class="reference"><a href="#cite_note-33"><span class="cite-bracket">[</span>31<span class="cite-bracket">]</span></a></sup> Improvements made in the systems since 1968 enabled the operators to distinguish MiG types and a color code system for them entered the air operations vernacular: "Red Bandits" (Mig-17s); "White Bandits" (<a href="/wiki/MiG-19" class="mw-redirect" title="MiG-19">MiG-19s</a>); "Blue Bandits" (MiG-21s), and "Black bandits" (MiGs low on fuel).<sup id="cite_ref-34" class="reference"><a href="#cite_note-34"><span class="cite-bracket">[</span>32<span class="cite-bracket">]</span></a></sup> </p><p>On 6 July 1972, as the result of seven F-4 Phantoms shot down in a two-week period, a second Disco track was initiated. Flown near the former Alpha orbit over the Gulf of Tonkin, its purpose was to gain better low-altitude coverage in the Hanoi area. At the end of the month, Disco was also integrated into <i>Teaball</i> control center, a highly classified system established to collate all signal intelligence on North Vietnamese air activity gathered by all sources, including nonmilitary. Disco was used as a conduit through which warnings and control vectors were given, but the delay in Teaball acquiring the information and relaying it through Disco (often using an unreliable radio relay <a href="/wiki/Boeing_KC-135" class="mw-redirect" title="Boeing KC-135">KC-135A Combat Lightning</a> aircraft operating under callsign Luzon)<sup id="cite_ref-36" class="reference"><a href="#cite_note-36"><span class="cite-bracket">[</span>N 3<span class="cite-bracket">]</span></a></sup> cancelled out its value for use in "real time", and the fact that its existence was kept from US aircrews damaged its credibility.<sup id="cite_ref-37" class="reference"><a href="#cite_note-37"><span class="cite-bracket">[</span>N 4<span class="cite-bracket">]</span></a></sup> Teaball received direct communications capability, but experienced transmission failures with frustrating frequency. Disco remained the primary backup controller, but its usefulness remained limited because it directly controlled only MiGCAP missions and could only provide its information to strike, chaff, and escort forces via the "<a href="/wiki/Aircraft_emergency_frequency" title="Aircraft emergency frequency">Guard</a>" frequency.<sup id="cite_ref-38" class="reference"><a href="#cite_note-38"><span class="cite-bracket">[</span>34<span class="cite-bracket">]</span></a></sup> </p><p>On 15 August 1973, Disco EC-121s flew their final combat mission and on 1 June 1974, Det.1 was permanently withdrawn from Southeast Asia. Between 1965 and 1973, the EC-121s flew 13,921 combat missions, more than 98,000 accident-free flying hours, assisted in the shoot-down of 25 MiGs, and supported the rescue of 80 downed flyers. No Big Eye, College Eye, or Disco aircraft were lost.<sup id="cite_ref-ec121_14-1" class="reference"><a href="#cite_note-ec121-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Batcat">Batcat</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lockheed_EC-121_Warning_Star&action=edit&section=11" title="Edit section: Batcat"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Lockheed_EC-121R_1969.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Lockheed_EC-121R_1969.jpg/220px-Lockheed_EC-121R_1969.jpg" decoding="async" width="220" height="144" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Lockheed_EC-121R_1969.jpg/330px-Lockheed_EC-121R_1969.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Lockheed_EC-121R_1969.jpg/440px-Lockheed_EC-121R_1969.jpg 2x" data-file-width="1005" data-file-height="659" /></a><figcaption>EC-121R Batcat</figcaption></figure> <p>During the Vietnam War, some 40 EC-121s were modified from USN WV-2 and WV-3 early warning Constellations for use with ground sensors to detect enemy troop movements along the Ho Chi Minh Trail and 25 were deployed to Korat RTAFB as a part of <a href="/wiki/Operation_Igloo_White" title="Operation Igloo White">Operation Igloo White</a>.<sup id="cite_ref-jtc_13-1" class="reference"><a href="#cite_note-jtc-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> The resulting <b>EC-121R</b> configuration was nicknamed the <b>Batcat</b>.<sup id="cite_ref-39" class="reference"><a href="#cite_note-39"><span class="cite-bracket">[</span>35<span class="cite-bracket">]</span></a></sup> Two Batcats were lost during the war, with the loss of 22 crewmen, one in a takeoff accident during a thunderstorm in April 1969, the other in September 1969, in a landing accident which also killed four Thai civilians. </p><p>Batcat EC-121s were camouflaged in standard tree-color Southeast Asia scheme, while the College Eye/Disco early warning aircraft were not. BatCat missions were 18 hours in length, with 8 hours on station at one of 11 color-coded orbits used during their five-year history, three of which were over South Vietnam, six over Laos, one over Cambodia, and one over the Gulf of Tonkin. </p><p>EC-121Rs were operated by the <a href="/wiki/553d_Reconnaissance_Squadron" title="553d Reconnaissance Squadron">553d</a> and <a href="/wiki/554th_Reconnaissance_Squadron" class="mw-redirect" title="554th Reconnaissance Squadron">554th</a> Reconnaissance Squadrons of the 553d Reconnaissance Wing, between October 1967 and December 1970, with about 20 Batcats on hand at any time. The wing activated in December 1970 and the 554th RS relocated to Nakhon Phanom RTAFB to fly <a href="/wiki/Beechcraft_Bonanza#QU-22_Pave_Eagle" title="Beechcraft Bonanza">QU-22</a> sensor monitors nicknamed "Baby Bats". Initially with 11 aircraft, the 553rd RS continued operations for another year, gradually returning aircraft and crews to the USA. The final Batcat mission was in December 1971. The last remaining administrative and support personnel returned to Otis AFB in January 1972. </p> <div class="mw-heading mw-heading2"><h2 id="Variants">Variants</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lockheed_EC-121_Warning_Star&action=edit&section=12" title="Edit section: Variants"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">Main article: <a href="/wiki/Lockheed_Constellation_variants" class="mw-redirect" title="Lockheed Constellation variants">Lockheed Constellation variants</a></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Warning_Star_Skyhawk_Phantom_VAQ-33_1973.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Warning_Star_Skyhawk_Phantom_VAQ-33_1973.jpg/220px-Warning_Star_Skyhawk_Phantom_VAQ-33_1973.jpg" decoding="async" width="220" height="173" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Warning_Star_Skyhawk_Phantom_VAQ-33_1973.jpg/330px-Warning_Star_Skyhawk_Phantom_VAQ-33_1973.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/98/Warning_Star_Skyhawk_Phantom_VAQ-33_1973.jpg/440px-Warning_Star_Skyhawk_Phantom_VAQ-33_1973.jpg 2x" data-file-width="789" data-file-height="622" /></a><figcaption>VAQ-33 NC-121K in 1973, flanked by <a href="/wiki/F-4_Phantom_II" class="mw-redirect" title="F-4 Phantom II">F-4B Phantom</a> and <a href="/wiki/Douglas_A-4_Skyhawk" title="Douglas A-4 Skyhawk">EA-4F Skyhawk</a></figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Lockheed_EC-121L_in_flight.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a0/Lockheed_EC-121L_in_flight.jpg/220px-Lockheed_EC-121L_in_flight.jpg" decoding="async" width="220" height="168" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a0/Lockheed_EC-121L_in_flight.jpg/330px-Lockheed_EC-121L_in_flight.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a0/Lockheed_EC-121L_in_flight.jpg/440px-Lockheed_EC-121L_in_flight.jpg 2x" data-file-width="484" data-file-height="369" /></a><figcaption>WV-2E experimental aircraft with a <a href="/wiki/Rotodome" class="mw-redirect" title="Rotodome">rotodome</a></figcaption></figure> <div class="mw-heading mw-heading3"><h3 id="USN_variants">USN variants</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lockheed_EC-121_Warning_Star&action=edit&section=13" title="Edit section: USN variants"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>WV-1. 2 prototypes, L-749A Constellation, designated <b>PO-1W</b> before 1952</li> <li>EC-121K (WV-2). Main USN variant, designated <b>PO-2W</b> before 1952; 244 ordered, 142 produced (the rest to USAF).</li> <li>JC-121K. One modified EC-121K used as a US Army avionics testbed</li> <li>NC-121K. Unknown number modified as special mission aircraft</li> <li>YEC-121K. One modified avionics testbed</li> <li>EC-121L (WV-2E). One modified WV-2, testbed for rotating radar dome with an AN/APS-70 radar</li> <li>EC-121M (WV-2Q). ELINT collection variant, 13 modified WV-2</li> <li>WC-121N (WV-3. Weather reconnaissance variant, 8 modified WV-2</li> <li>EC-121P. Unknown number modified from EC-121K as anti-submarine variant</li> <li>JEC-121P. 3 EC-121P used by the USAF</li></ul> <div class="mw-heading mw-heading3"><h3 id="USAF_variants">USAF variants</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lockheed_EC-121_Warning_Star&action=edit&section=14" title="Edit section: USAF variants"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Lockheed_RC-121C_1955.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/69/Lockheed_RC-121C_1955.jpg/220px-Lockheed_RC-121C_1955.jpg" decoding="async" width="220" height="147" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/69/Lockheed_RC-121C_1955.jpg/330px-Lockheed_RC-121C_1955.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/69/Lockheed_RC-121C_1955.jpg/440px-Lockheed_RC-121C_1955.jpg 2x" data-file-width="720" data-file-height="480" /></a><figcaption>The first USAF RC-121C, 1955.</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Lockheed_F-104A_%26_EC-121_060928-F-1234S-010.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/7e/Lockheed_F-104A_%26_EC-121_060928-F-1234S-010.jpg/220px-Lockheed_F-104A_%26_EC-121_060928-F-1234S-010.jpg" decoding="async" width="220" height="138" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/7e/Lockheed_F-104A_%26_EC-121_060928-F-1234S-010.jpg/330px-Lockheed_F-104A_%26_EC-121_060928-F-1234S-010.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/7e/Lockheed_F-104A_%26_EC-121_060928-F-1234S-010.jpg/440px-Lockheed_F-104A_%26_EC-121_060928-F-1234S-010.jpg 2x" data-file-width="1800" data-file-height="1130" /></a><figcaption>USAF RC-121D 53-0128 with F-104 Starfighters.</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Ec-121r-amarc-552d.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e7/Ec-121r-amarc-552d.jpg/220px-Ec-121r-amarc-552d.jpg" decoding="async" width="220" height="140" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e7/Ec-121r-amarc-552d.jpg/330px-Ec-121r-amarc-552d.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e7/Ec-121r-amarc-552d.jpg/440px-Ec-121r-amarc-552d.jpg 2x" data-file-width="600" data-file-height="382" /></a><figcaption>A former EC-121R Batcat at <a href="/wiki/AMARC" class="mw-redirect" title="AMARC">AMARC</a>, <a href="/wiki/Davis-Monthan_AFB" class="mw-redirect" title="Davis-Monthan AFB">Davis-Monthan AFB</a>, <a href="/wiki/Arizona" title="Arizona">Arizona</a>.</figcaption></figure> <ul><li>RC-121C: 10 produced, initial USAF variant</li> <li>JC-121C: 2 converted from C-121C and 1 TC-121C as avionics testbeds</li> <li>TC-121C: 9 RC-121C modified before 1962 as crew trainers</li> <li>EC-121D: 73 produced 1953–55 as main USAF variant and 1 converted from C-121C, originally designated RC-121D</li> <li>EC-121D Quick Look: 1 testbed for QRC-248 IFF transponder interrogator</li> <li>EC-121H: 42 USAF upgrades in 1962, 35x EC-121D and 7x WV-2s transferred from the Navy</li> <li>EC-121J: 2 USAF EC-121D modified with upgraded electronics</li> <li>EC-121M Rivet Top: 1 EC-121D testbed for <i>Rivet Gym</i> cryptologic linguist electronics suite, originally designated EC-121K</li> <li>EC-121Q: 4 EC-121D modified with upgraded electronics for USAF Gold Digger missions</li> <li>EC-121R: 30 EC-121K / EC-121P transferred to USAF in 1966–1967 and converted to Batcat sensor signal processor</li> <li>EC-121S: 5 converted for <a href="/wiki/Pennsylvania_Air_National_Guard" title="Pennsylvania Air National Guard">Pennsylvania Air National Guard</a> from USAF C-121 transports</li> <li>EC-121T: Final USAF variant. A total of 22 T's were converted from 15x EC-121D and 7x EC-121H.</li> <li>XW2V-1: Proposed naval development with new features such as 4 <a href="/wiki/Allison_T56" title="Allison T56">Allison T56</a>-A8 turboprop engines, <a href="/wiki/Lockheed_L-1649A_Starliner" class="mw-redirect" title="Lockheed L-1649A Starliner">L-1649A Starliner</a> wings and Bomarc missiles for defense. None built; was designated L-084 due to the large differences from its predecessors.<sup id="cite_ref-40" class="reference"><a href="#cite_note-40"><span class="cite-bracket">[</span>36<span class="cite-bracket">]</span></a></sup></li></ul> <div class="mw-heading mw-heading2"><h2 id="Operators">Operators</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lockheed_EC-121_Warning_Star&action=edit&section=15" title="Edit section: Operators"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <dl><dt><span class="flagicon"><span class="mw-image-border" typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5d/Flag_of_the_United_States_%2823px%29.png/23px-Flag_of_the_United_States_%2823px%29.png" decoding="async" width="23" height="13" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5d/Flag_of_the_United_States_%2823px%29.png/35px-Flag_of_the_United_States_%2823px%29.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5d/Flag_of_the_United_States_%2823px%29.png/46px-Flag_of_the_United_States_%2823px%29.png 2x" data-file-width="69" data-file-height="39" /></span></span> </span><a href="/wiki/United_States" title="United States">United States</a></dt></dl> <div class="mw-heading mw-heading3"><h3 id="USAF_2">USAF</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lockheed_EC-121_Warning_Star&action=edit&section=16" title="Edit section: USAF"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading4"><h4 id="Active_duty">Active duty</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lockheed_EC-121_Warning_Star&action=edit&section=17" title="Edit section: Active duty"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>551st AEWCW – <a href="/wiki/Otis_AFB" class="mw-redirect" title="Otis AFB">Otis AFB</a>, Massachusetts <ul><li><a href="/wiki/960th_Airborne_Air_Control_Squadron" title="960th Airborne Air Control Squadron">960th AEWCS</a></li> <li><a href="/wiki/961st_Airborne_Air_Control_Squadron" title="961st Airborne Air Control Squadron">961st AEWCS</a></li> <li><a href="/wiki/962d_Airborne_Air_Control_Squadron" class="mw-redirect" title="962d Airborne Air Control Squadron">962d AEWCS</a></li></ul></li> <li>552d AEWCW – <a href="/wiki/McClellan_AFB" class="mw-redirect" title="McClellan AFB">McClellan AFB</a>, California <ul><li><a href="/wiki/963d_Airborne_Air_Control_Squadron" class="mw-redirect" title="963d Airborne Air Control Squadron">963d AEWCS</a></li> <li><a href="/wiki/964th_Airborne_Air_Control_Squadron" title="964th Airborne Air Control Squadron">964th AEWCS</a></li> <li><a href="/wiki/965th_Airborne_Air_Control_Squadron" title="965th Airborne Air Control Squadron">965th AEWCS</a></li></ul></li> <li>553d RW – <a href="/wiki/Korat_RTAFB" class="mw-redirect" title="Korat RTAFB">Korat RTAFB</a>, Thailand <ul><li>553d RS</li> <li>554th RS</li></ul></li> <li>966th AEWCS – <a href="/wiki/McCoy_AFB" class="mw-redirect" title="McCoy AFB">McCoy AFB</a>, Florida</li> <li>Det 1, 20th ADS – <a href="/wiki/Homestead_AFB" class="mw-redirect" title="Homestead AFB">Homestead AFB</a>, Florida</li></ul> <div class="mw-heading mw-heading4"><h4 id="AFRES">AFRES</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lockheed_EC-121_Warning_Star&action=edit&section=18" title="Edit section: AFRES"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/79th_Air_Refueling_Squadron" title="79th Air Refueling Squadron">79th AEWCS</a> (AFRES) – <a href="/wiki/Homestead_AFB" class="mw-redirect" title="Homestead AFB">Homestead AFB</a>, Florida</li></ul> <div class="mw-heading mw-heading4"><h4 id="ANG">ANG</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lockheed_EC-121_Warning_Star&action=edit&section=19" title="Edit section: ANG"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/193d_Special_Operations_Squadron" class="mw-redirect" title="193d Special Operations Squadron">193d TEWS</a> (PA ANG) – <a href="/wiki/Olmsted_Air_Force_Base" class="mw-redirect" title="Olmsted Air Force Base">Olmsted Air Force Base</a>, later renamed <a href="/wiki/Harrisburg_Air_National_Guard_Base" title="Harrisburg Air National Guard Base">Harrisburg Air National Guard Base</a>, <a href="/wiki/Pennsylvania" title="Pennsylvania">Pennsylvania</a></li></ul> <div class="mw-heading mw-heading3"><h3 id="USN_2">USN</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lockheed_EC-121_Warning_Star&action=edit&section=20" title="Edit section: USN"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:WC-121N_1967.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/WC-121N_1967.jpg/220px-WC-121N_1967.jpg" decoding="async" width="220" height="147" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/WC-121N_1967.jpg/330px-WC-121N_1967.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d7/WC-121N_1967.jpg/440px-WC-121N_1967.jpg 2x" data-file-width="2100" data-file-height="1403" /></a><figcaption>WC-121N of VW-4 Hurricane Hunters 1967</figcaption></figure> <ul><li>AEW Wing Atlantic – <a href="/wiki/NAS_Patuxent_River" class="mw-redirect" title="NAS Patuxent River">NAS Patuxent River</a>, Maryland <ul><li>VXN-8 – NAS Patuxent River, Maryland</li> <li>VW-2 (BarLant) -NAS Patuxent River, Maryland</li> <li>VW-4 ("Hurricane Hunters") – <a href="/wiki/NAS_Jacksonville" class="mw-redirect" title="NAS Jacksonville">NAS Jacksonville</a>, Florida</li> <li>VW-11 (BarLant) – NS Argentia, Newfoundland / NAS Patuxent River, Maryland</li> <li>VW-13 (BarLant) – NAS Patuxent River, Maryland / <a href="/wiki/NS_Argentia" class="mw-redirect" title="NS Argentia">NS Argentia</a>, Newfoundland</li> <li>VW-15 (BarLant) – NAS Argentia, Newfoundland / NAS Patuxent River, Maryland</li> <li>AEWTULANT – NAS Patuxent River, Maryland</li> <li>Naval CIC Officers School, later Training Squadron EIGHTY SIX (VT-86) – <a href="/wiki/NAS_Glynco" class="mw-redirect" title="NAS Glynco">NAS Glynco</a>, Georgia</li></ul></li> <li>AEW Wing Pacific – <a href="/wiki/NAS_Barbers_Point" class="mw-redirect" title="NAS Barbers Point">NAS Barbers Point</a>, Hawaii <ul><li>VW-1 ("Typhoon Trackers") – <a href="/wiki/NAS_Agana" class="mw-redirect" title="NAS Agana">NAS Agana</a>, Guam</li> <li>VW-3 ("Typhoon Chasers") – NAS Agana, Guam</li> <li>VW-12 (BarPac) – NAS Barbers Point, Hawaii</li> <li>VW-14 (BarPac) – NAS Barbers Point, Hawaii</li> <li>VW-16 (BarPac) – NAS Barbers Point, Hawaii</li> <li>AewBarsRon 2 (Service/Support) – NAS Barbers Point, Hawaii</li> <li>MatRon 1 (Support) – NAS Barbers Point, Hawaii</li> <li>AewBarRonPac (amalgamation of VW-12, VW-14, and AEWBarRon 2) – NAS Barbers Point, Hawaii</li></ul></li> <li><a href="/wiki/VQ-1" title="VQ-1">VQ-1</a> – <a href="/wiki/NAF_Atsugi" class="mw-redirect" title="NAF Atsugi">NAF Atsugi</a>, Japan</li> <li><a href="/wiki/VQ-2" title="VQ-2">VQ-2</a> – <a href="/wiki/Naval_Station_Rota,_Spain" class="mw-redirect" title="Naval Station Rota, Spain">NS Rota, Spain</a></li> <li><a href="/wiki/VAQ-33" title="VAQ-33">VAQ-33</a> – <a href="/wiki/NAS_Norfolk" class="mw-redirect" title="NAS Norfolk">NAS Norfolk</a>, Virginia / <a href="/wiki/NAS_Key_West" class="mw-redirect" title="NAS Key West">NAS Key West</a>, Florida</li> <li><a href="/wiki/VX-6" title="VX-6">VX-6</a> – <a href="/wiki/NAS_Quonset_Point" class="mw-redirect" title="NAS Quonset Point">NAS Quonset Point</a>, <a href="/wiki/Rhode_Island" title="Rhode Island">Rhode Island</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Accidents_and_incidents"><style data-mw-deduplicate="TemplateStyles:r1238216509">.mw-parser-output .vanchor>:target~.vanchor-text{background-color:#b1d2ff}@media screen{html.skin-theme-clientpref-night .mw-parser-output .vanchor>:target~.vanchor-text{background-color:#0f4dc9}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .vanchor>:target~.vanchor-text{background-color:#0f4dc9}}</style><span class="vanchor"><span id="Accidents"></span><span class="vanchor-text">Accidents</span></span> and incidents</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lockheed_EC-121_Warning_Star&action=edit&section=21" title="Edit section: Accidents and incidents"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:EC-121H_Warning_Star_wreckage,_tail_number_53-0549_in_hangar.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/3d/EC-121H_Warning_Star_wreckage%2C_tail_number_53-0549_in_hangar.jpg/220px-EC-121H_Warning_Star_wreckage%2C_tail_number_53-0549_in_hangar.jpg" decoding="async" width="220" height="177" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/3d/EC-121H_Warning_Star_wreckage%2C_tail_number_53-0549_in_hangar.jpg/330px-EC-121H_Warning_Star_wreckage%2C_tail_number_53-0549_in_hangar.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/3d/EC-121H_Warning_Star_wreckage%2C_tail_number_53-0549_in_hangar.jpg/440px-EC-121H_Warning_Star_wreckage%2C_tail_number_53-0549_in_hangar.jpg 2x" data-file-width="938" data-file-height="754" /></a><figcaption>Wreckage of the 25 April 1967 crash, in a hangar after recovery</figcaption></figure> <p>A total of 20 Navy EC-121s were destroyed in accidents, with 113 aircrew deaths:<sup id="cite_ref-xtra_41-0" class="reference"><a href="#cite_note-xtra-41"><span class="cite-bracket">[</span>37<span class="cite-bracket">]</span></a></sup> </p> <ul><li>15x WV-2/EC-121K; 3x WV-2Q/EC-121M and 2x WV-3/WC-121N</li></ul> <p>Another unarmed EC-121M was destroyed in one-sided combat. In April 1969, <a href="/wiki/North_Korean_Air_Force" class="mw-redirect" title="North Korean Air Force">North Korean Air Force</a> <a href="/wiki/MiG-21" class="mw-redirect" title="MiG-21">MiG-21</a> fighter-interceptors <a href="/wiki/EC-121_shootdown_incident" class="mw-redirect" title="EC-121 shootdown incident">shot down an EC-121</a> in international airspace off the country's east coast, killing all of the crew of 31 on board.<sup id="cite_ref-bbc_5-1" class="reference"><a href="#cite_note-bbc-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p><p>The USAF had a total of 11 Warning Stars destroyed in accidents, killing 66 aircrew:<sup id="cite_ref-xtra_41-1" class="reference"><a href="#cite_note-xtra-41"><span class="cite-bracket">[</span>37<span class="cite-bracket">]</span></a></sup> </p> <ul><li>2x RC-121C/TC-121C; 2x RC-121D; 3x EC-121H; 3x EC-121R and 1x EC-121T</li></ul> <p>Three EC-121Hs from the 551st AEWCW were lost—on <a href="/wiki/1965_EC-121H_Warning_Star_crash" class="mw-redirect" title="1965 EC-121H Warning Star crash">11 July 1965</a>, <a href="/wiki/1966_EC-121H_Warning_Star_crash" class="mw-redirect" title="1966 EC-121H Warning Star crash">11 November 1966</a> and <a href="/wiki/1967_EC-121H_Warning_Star_crash" class="mw-redirect" title="1967 EC-121H Warning Star crash">25 April 1967</a>—resulting in a total of 50 deaths (16, 19, and 15, respectively), including wing commander Col James P. Lyle in the 1967 crash.<sup id="cite_ref-42" class="reference"><a href="#cite_note-42"><span class="cite-bracket">[</span>38<span class="cite-bracket">]</span></a></sup> </p><p>The two Batcat EC-121R crashes<sup class="noprint Inline-Template" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Cleanup" title="Wikipedia:Cleanup"><span title="Above summary indicates 3x EC-121R (October 2024)">inconsistent</span></a></i>]</sup> resulted in 22 killed. </p> <div class="mw-heading mw-heading2"><h2 id="Surviving_aircraft">Surviving aircraft</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lockheed_EC-121_Warning_Star&action=edit&section=22" title="Edit section: Surviving aircraft"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <dl><dt>EC-121T</dt></dl> <dl><dt><dl><dt>On Display</dt></dl></dt></dl> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Lockheed_Constellation_Topeka.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/47/Lockheed_Constellation_Topeka.jpg/220px-Lockheed_Constellation_Topeka.jpg" decoding="async" width="220" height="147" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/4/47/Lockheed_Constellation_Topeka.jpg 1.5x" data-file-width="300" data-file-height="200" /></a><figcaption>N4257U (AF Ser No. 52-3418) on display Combat Air Museum Topeka, KS</figcaption></figure> <ul><li>AF Ser. No. 52-3418 – on display at the <a href="/wiki/Combat_Air_Museum" title="Combat Air Museum">Combat Air Museum</a> at <a href="/wiki/Forbes_Field" title="Forbes Field">Forbes Field</a> (former <a href="/wiki/Forbes_AFB" class="mw-redirect" title="Forbes AFB">Forbes AFB</a>) in <a href="/wiki/Topeka,_Kansas" title="Topeka, Kansas">Topeka, Kansas</a>. The aircraft was delivered to USAF in October 1954 as an RC-121D and redesignated an EC-121D in 1962. It was converted to an EC-121T, but the upper radome has been removed.</li></ul> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:EC-121T_at_Peterson_AFB.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4e/EC-121T_at_Peterson_AFB.jpg/220px-EC-121T_at_Peterson_AFB.jpg" decoding="async" width="220" height="165" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4e/EC-121T_at_Peterson_AFB.jpg/330px-EC-121T_at_Peterson_AFB.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4e/EC-121T_at_Peterson_AFB.jpg/440px-EC-121T_at_Peterson_AFB.jpg 2x" data-file-width="4320" data-file-height="3240" /></a><figcaption>EC-121T AF Serial No. 52-3425 on display Peterson AFB Colorado</figcaption></figure> <ul><li>AF Ser. No. 52-3425 – on display at the <a href="/wiki/Peterson_Air_and_Space_Museum" title="Peterson Air and Space Museum">Peterson Air and Space Museum</a> at <a href="/wiki/Peterson_AFB" class="mw-redirect" title="Peterson AFB">Peterson AFB</a> in <a href="/wiki/Colorado_Springs,_Colorado" title="Colorado Springs, Colorado">Colorado Springs, Colorado</a>. Previously assigned to the 966th AEWCS at <a href="/wiki/McCoy_AFB" class="mw-redirect" title="McCoy AFB">McCoy AFB</a>, Florida and then the 79th AEWCS at <a href="/wiki/Homestead_AFB" class="mw-redirect" title="Homestead AFB">Homestead AFB</a>, Florida. It was delivered to <a href="/wiki/Peterson_AFB" class="mw-redirect" title="Peterson AFB">Peterson AFB</a> in October 1978.<sup id="cite_ref-43" class="reference"><a href="#cite_note-43"><span class="cite-bracket">[</span>39<span class="cite-bracket">]</span></a></sup></li> <li>AF Ser. No. 53-0548 – on display at the <a href="/wiki/Yanks_Air_Museum" title="Yanks Air Museum">Yanks Air Museum</a> in <a href="/wiki/Chino,_California" title="Chino, California">Chino, California</a>. It was stored at <a href="/wiki/Camarillo_Airport" title="Camarillo Airport">Camarillo Airport</a> (former Oxnard AFB) while the Yanks Air Museum was working to get it restored and to complete FAA paperwork for a ferry flight. The final maintenance efforts by Yanks Air Museum Restoration Director Frank Wright included a rebuild of engine #4 in early January 2012. 53-0548 departed Camarillo at 12:10PM on Saturday, 14 January 2012 for the 90-minute flight to Chino, where it will become a static display.<sup id="cite_ref-44" class="reference"><a href="#cite_note-44"><span class="cite-bracket">[</span>40<span class="cite-bracket">]</span></a></sup></li> <li>AF Ser. No. 53-0552 – on display at <a href="/wiki/Tinker_AFB" class="mw-redirect" title="Tinker AFB">Tinker AFB</a>, Oklahoma.</li> <li>AF Ser. No. 53-0554 – on display at the <a href="/wiki/Pima_Air_%26_Space_Museum" title="Pima Air & Space Museum">Pima Air & Space Museum</a>, adjacent to <a href="/wiki/Davis-Monthan_AFB" class="mw-redirect" title="Davis-Monthan AFB">Davis-Monthan AFB</a> in <a href="/wiki/Tucson,_Arizona" title="Tucson, Arizona">Tucson, Arizona</a>.</li></ul> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Lockheed_EC-121D_Constellation_USAF.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lockheed_EC-121D_Constellation_USAF.jpg/220px-Lockheed_EC-121D_Constellation_USAF.jpg" decoding="async" width="220" height="147" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lockheed_EC-121D_Constellation_USAF.jpg/330px-Lockheed_EC-121D_Constellation_USAF.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lockheed_EC-121D_Constellation_USAF.jpg/440px-Lockheed_EC-121D_Constellation_USAF.jpg 2x" data-file-width="1800" data-file-height="1203" /></a><figcaption>College Eye EC-121D (AF Ser. No. 53-0555) <a href="/wiki/National_Museum_of_the_United_States_Air_Force" title="National Museum of the United States Air Force">National Museum of the United States Air Force</a></figcaption></figure> <ul><li>AF Ser. No. 53-0555 – on display at the <a href="/wiki/National_Museum_of_the_United_States_Air_Force" title="National Museum of the United States Air Force">National Museum of the United States Air Force</a> at <a href="/wiki/Wright-Patterson_Air_Force_Base" title="Wright-Patterson Air Force Base">Wright-Patterson Air Force Base</a> near <a href="/wiki/Dayton,_Ohio" title="Dayton, Ohio">Dayton, Ohio</a>. The College Eye EC-121D is fully restored and on display indoors. This aircraft was nicknamed "Triple Nickel" because of its serial number (53-555). On 24 October 1967, while operating over the <a href="/wiki/Gulf_of_Tonkin" title="Gulf of Tonkin">Gulf of Tonkin</a>, it guided a U.S. fighter by radar into position to destroy a <a href="/wiki/North_Vietnamese_Air_Force" class="mw-redirect" title="North Vietnamese Air Force">North Vietnamese Air Force</a> enemy fighter aircraft, a <a href="/wiki/MiG-21" class="mw-redirect" title="MiG-21">MiG-21</a>. This was the first time a weapons controller aboard an airborne radar aircraft had ever directed a successful attack on an enemy aircraft. "Triple Nickel" was retired to the USAF Museum in 1971.<sup id="cite_ref-45" class="reference"><a href="#cite_note-45"><span class="cite-bracket">[</span>41<span class="cite-bracket">]</span></a></sup></li> <li>AF Ser. No. 52-3417 – in storage at the <a href="/wiki/University_of_Montana_%E2%80%93_Helena_College_of_Technology" class="mw-redirect" title="University of Montana – Helena College of Technology">University of Montana – Helena College of Technology</a> in <a href="/wiki/Helena,_Montana" title="Helena, Montana">Helena, Montana</a>. The aircraft is the oldest surviving EC-121, and was delivered to the USAF as a RC-121D in September 1954, and upgraded to an EC-121T in 1970. It served with the <a href="/wiki/Air_Force_Reserve" class="mw-redirect" title="Air Force Reserve">Air Force Reserve</a> at <a href="/wiki/Homestead_Air_Force_Base" class="mw-redirect" title="Homestead Air Force Base">Homestead Air Force Base</a> before being retired to <a href="/wiki/Davis-Monthan_Air_Force_Base" class="mw-redirect" title="Davis-Monthan Air Force Base">Davis-Monthan Air Force Base</a> in March 1976. In the early 1980s, the university purchased the aircraft from the Air Force for $10,000 and it was ferried to the university in July 1981. In spring 2009, it was declared surplus by the university and offered to any museum interested in preserving it. The aircraft was eventually acquired by the <a href="/wiki/Evergreen_Aviation_and_Space_Museum" class="mw-redirect" title="Evergreen Aviation and Space Museum">Evergreen Aviation and Space Museum</a> in <a href="/wiki/McMinnville,_Oregon" title="McMinnville, Oregon">McMinnville, Oregon</a>, and prepped for a <a href="/wiki/Ferry_flight" class="mw-redirect" title="Ferry flight">ferry flight</a> to Oregon. However, after the museum's parent company <a href="/wiki/Evergreen_International_Aviation" title="Evergreen International Aviation">Evergreen International Aviation</a> went bankrupt, the aircraft was acquired by the <a href="/wiki/Castle_Air_Museum" title="Castle Air Museum">Castle Air Museum</a> at the former <a href="/wiki/Castle_AFB" class="mw-redirect" title="Castle AFB">Castle AFB</a> in <a href="/wiki/Atwater,_California" title="Atwater, California">Atwater, California</a>, for restoration. After that, many parts and materials were collected, and now it is completely restored and preserved.</li></ul> <dl><dt>EC-121K</dt></dl> <dl><dt><dl><dt>On Display</dt></dl></dt></dl> <ul><li>BuNo 137890 – on display outside <a href="/wiki/552d_Air_Control_Wing" class="mw-redirect" title="552d Air Control Wing">552d Air Control Wing</a> Headquarters, the home of E-3 AWACS operations for the USAF, at <a href="/wiki/Tinker_Air_Force_Base" title="Tinker Air Force Base">Tinker Air Force Base</a>, in <a href="/wiki/Oklahoma_City,_Oklahoma" class="mw-redirect" title="Oklahoma City, Oklahoma">Oklahoma City, Oklahoma</a>. The aircraft is one of two Warning Stars displayed in the markings as AF Serial Number 53-0552.</li> <li>BuNo 141297 – on display at the <a href="/wiki/Museum_of_Aviation_(Warner_Robins)" title="Museum of Aviation (Warner Robins)">Museum of Aviation</a> at <a href="/wiki/Robins_Air_Force_Base" title="Robins Air Force Base">Robins Air Force Base</a>, Georgia. It was flown to the museum in 1987 for display.<sup id="cite_ref-46" class="reference"><a href="#cite_note-46"><span class="cite-bracket">[</span>42<span class="cite-bracket">]</span></a></sup></li> <li>BuNo 141309 – on display as AF Serial Number 53-0552 at the <a href="/wiki/Aerospace_Museum_of_California" title="Aerospace Museum of California">Aerospace Museum of California</a> at the former <a href="/wiki/McClellan_AFB" class="mw-redirect" title="McClellan AFB">McClellan AFB</a>, <a href="/wiki/California" title="California">California</a>. This is one of two Warning Stars painted as 53-0552.</li> <li>BuNo 141311 – awaiting restoration at the <a href="/wiki/Yankee_Air_Museum" class="mw-redirect" title="Yankee Air Museum">Yankee Air Museum</a>, <a href="/wiki/Belleville,_MI" class="mw-redirect" title="Belleville, MI">Belleville, MI</a>. Previously at <a href="/wiki/Octave_Chanute_Aerospace_Museum" title="Octave Chanute Aerospace Museum">Octave Chanute Aerospace Museum</a>, <a href="/wiki/Rantoul,_Illinois" title="Rantoul, Illinois">Rantoul, Illinois</a>.<sup id="cite_ref-47" class="reference"><a href="#cite_note-47"><span class="cite-bracket">[</span>43<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-48" class="reference"><a href="#cite_note-48"><span class="cite-bracket">[</span>44<span class="cite-bracket">]</span></a></sup></li> <li>BuNo 143221 – on display at the <a href="/wiki/National_Naval_Aviation_Museum" title="National Naval Aviation Museum">National Naval Aviation Museum</a> at <a href="/wiki/Naval_Air_Station_Pensacola" title="Naval Air Station Pensacola">Naval Air Station Pensacola</a> in <a href="/wiki/Pensacola,_Florida" title="Pensacola, Florida">Pensacola, Florida</a>. The aircraft was acquired in flyable condition in 1973 from Training Squadron 86 (VT-86) at <a href="/wiki/NAS_Glynco" class="mw-redirect" title="NAS Glynco">NAS Glynco</a>, Georgia pending the closure of NAS Glynco and the squadron's relocation to NAS Pensacola. It is currently on display at the Sherman Field flight line annex of the museum.</li></ul> <div class="mw-heading mw-heading2"><h2 id="Specifications_(WV-2/EC-121D)"><span id="Specifications_.28WV-2.2FEC-121D.29"></span>Specifications (WV-2/EC-121D)</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lockheed_EC-121_Warning_Star&action=edit&section=23" title="Edit section: Specifications (WV-2/EC-121D)"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Frameless"><a href="/wiki/File:Lockheed_RC-121C_Warning_Star_3-view_line_drawing.png" class="mw-file-description" title="3-view line drawing of the Lockheed RC-121C Warning Star"><img alt="3-view line drawing of the Lockheed RC-121C Warning Star" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Lockheed_RC-121C_Warning_Star_3-view_line_drawing.png/220px-Lockheed_RC-121C_Warning_Star_3-view_line_drawing.png" decoding="async" width="220" height="287" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Lockheed_RC-121C_Warning_Star_3-view_line_drawing.png/330px-Lockheed_RC-121C_Warning_Star_3-view_line_drawing.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Lockheed_RC-121C_Warning_Star_3-view_line_drawing.png/440px-Lockheed_RC-121C_Warning_Star_3-view_line_drawing.png 2x" data-file-width="2062" data-file-height="2690" /></a><figcaption>3-view line drawing of the Lockheed RC-121C Warning Star</figcaption></figure> <p style="font-size: 90%; margin:0;"><i>Data from</i> <sup id="cite_ref-49" class="reference"><a href="#cite_note-49"><span class="cite-bracket">[</span>45<span class="cite-bracket">]</span></a></sup></p><p><span style="font-size:120%"><b>General characteristics</b></span> </p><ul><li><b>Crew:</b> typically six flight crew, 11–25 radar crew</li> <li><b>Length:</b> 116 ft 2 in (35.40 m)</li> <li><b>Wingspan:</b> 126 ft 2 in (38.45 m)</li> <li><b>Height:</b> 24 ft 9 in (7.54 m)</li> <li><b>Wing area:</b> 1,650 sq ft (153.27 m<sup>2</sup>)</li> <li><b>Empty weight:</b> 69,210 lb (31,387 kg)</li> <li><b>Max takeoff weight:</b> 143,000 lb (65,000 kg)</li> <li><b>Powerplant:</b> 4 × <a href="/wiki/Wright_R-3350" class="mw-redirect" title="Wright R-3350">Wright R-3350-34 turbo compound</a> 18-cylinder <a href="/wiki/Supercharged" class="mw-redirect" title="Supercharged">supercharged</a> <a href="/wiki/Radial_engine" title="Radial engine">radial engines</a>, 3,400 hp (2,536 kW) each</li></ul> <p><span style="font-size:120%"><b>Performance</b></span> </p> <ul><li><b>Maximum speed:</b> 299 mph (481 km/h, 260 kn)</li> <li><b>Cruise speed:</b> 255 mph (410 km/h, 222 kn)</li> <li><b>Range:</b> 4,250 mi (6,843 km, 3,700 nmi)</li> <li><b>Service ceiling:</b> 25,000 ft (7,620 m)</li> <li><b>Rate of climb:</b> 960 ft/min (4.87 m/s)</li></ul> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lockheed_EC-121_Warning_Star&action=edit&section=24" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Lockheed_Constellation_variants" class="mw-redirect" title="Lockheed Constellation variants">Lockheed Constellation variants</a></li></ul> <p><b>Related development</b> </p> <ul><li><a href="/wiki/Lockheed_Constellation" title="Lockheed Constellation">Lockheed Constellation</a> – Family of US airliners with 4 piston engines, 1943</li> <li><a href="/wiki/Lockheed_L-049_Constellation" title="Lockheed L-049 Constellation">L-049 Constellation</a> – US airliner with 4 piston engines, 1943</li> <li><a href="/wiki/Lockheed_C-69_Constellation" title="Lockheed C-69 Constellation">C-69 Constellation</a> – Early military version of the Constellation</li> <li><a href="/wiki/Lockheed_L-649_Constellation" title="Lockheed L-649 Constellation">L-649 Constellation</a> – US airliner with 4 piston engines, 1946</li> <li><a href="/wiki/Lockheed_L-749_Constellation" title="Lockheed L-749 Constellation">L-749 Constellation</a> – First version of Constellation with the ability to cross the Atlantic non-stop</li> <li><a href="/wiki/Lockheed_L-1049_Super_Constellation" title="Lockheed L-1049 Super Constellation">L-1049 Super Constellation</a> – US airliner with 4 piston engines, 1951</li> <li><a href="/wiki/Lockheed_C-121_Constellation" title="Lockheed C-121 Constellation">C-121/R7V Constellation</a> – Military transport version of Constellation</li> <li><a href="/wiki/Lockheed_L-1649_Starliner" title="Lockheed L-1649 Starliner">L-1649A Starliner</a> – US airliner with 4 piston engines, 1956</li></ul> <p><b>Aircraft of comparable role, configuration, and era</b> </p> <ul><li><a href="/wiki/Boeing_E-3_Sentry" title="Boeing E-3 Sentry">Boeing E-3 Sentry</a> – Airborne early warning and control aircraft based on Boeing 707 airframe</li> <li><a href="/wiki/Fairey_Gannet_AEW.3" title="Fairey Gannet AEW.3">Fairey Gannet AEW.3</a> – British airborne early warning aircraft</li> <li><a href="/wiki/Tupolev_Tu-126" title="Tupolev Tu-126">Tupolev Tu-126</a> – Russian airborne early warning and control aircraft</li></ul> <p> <b>Related lists</b> </p> <ul><li><a href="/wiki/List_of_Lockheed_aircraft" title="List of Lockheed aircraft">List of Lockheed aircraft</a></li> <li><a href="/wiki/List_of_Lockheed_Constellation_operators" title="List of Lockheed Constellation operators">List of Lockheed Constellation operators</a></li> <li><a href="/wiki/List_of_military_electronics_of_the_United_States" title="List of military electronics of the United States">List of military electronics of the United States</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lockheed_EC-121_Warning_Star&action=edit&section=25" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Notes">Notes</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lockheed_EC-121_Warning_Star&action=edit&section=26" title="Edit section: Notes"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-23"><span class="mw-cite-backlink"><b><a href="#cite_ref-23">^</a></b></span> <span class="reference-text">Programs developed under the auspices of the <i><a href="/wiki/Big_Safari" class="mw-redirect" title="Big Safari">Big Safari</a></i> "rapid procurement" office have two-word identifiers beginning with the word "Rivet."</span> </li> <li id="cite_note-32"><span class="mw-cite-backlink"><b><a href="#cite_ref-32">^</a></b></span> <span class="reference-text">The other and preferred system was <a href="/wiki/PIRAZ" title="PIRAZ"><i>Red Crown</i></a>, a USN ship in the Gulf of Tonkin.<sup id="cite_ref-31" class="reference"><a href="#cite_note-31"><span class="cite-bracket">[</span>30<span class="cite-bracket">]</span></a></sup></span> </li> <li id="cite_note-36"><span class="mw-cite-backlink"><b><a href="#cite_ref-36">^</a></b></span> <span class="reference-text"><i>Luzon</i> was likely being jammed by friendly <a href="/wiki/Electronic_countermeasures" class="mw-redirect" title="Electronic countermeasures">ECM</a> systems.<sup id="cite_ref-35" class="reference"><a href="#cite_note-35"><span class="cite-bracket">[</span>33<span class="cite-bracket">]</span></a></sup></span> </li> <li id="cite_note-37"><span class="mw-cite-backlink"><b><a href="#cite_ref-37">^</a></b></span> <span class="reference-text">Teaball, like Rivet Top, was an NSA asset whose existence was carefully compartmentalized to prevent compromising its usefulness in the manned bomber nuclear deterrent mission.</span> </li> </ol></div></div> <div class="mw-heading mw-heading3"><h3 id="Citations">Citations</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lockheed_EC-121_Warning_Star&action=edit&section=27" title="Edit section: Citations"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239543626"><div class="reflist reflist-columns references-column-width reflist-columns-2"> <ol class="references"> <li id="cite_note-po1w-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-po1w_1-0">^</a></b></span> <span class="reference-text">Swanborough and Bowers 1990, p. 299.</span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text">Boys, Dean. <a rel="nofollow" class="external text" href="http://www.dean-boys.com/extras/birthof.htm">"Birth of the Lockheed Warning Star."</a> <i>dean-boys.com</i>. Retrieved: 13 March 2009.</span> </li> <li id="cite_note-radar-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-radar_3-0">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.aewa.org/Library/ec121-info.html">"EC-121 Warning Star."</a> <i>AEWA.</i> Retrieved: 19 September 2009.</span> </li> <li id="cite_note-CEE-4"><span class="mw-cite-backlink">^ <a href="#cite_ref-CEE_4-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-CEE_4-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-CEE_4-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-CEE_4-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-CEE_4-4"><sup><i><b>e</b></i></sup></a> <a href="#cite_ref-CEE_4-5"><sup><i><b>f</b></i></sup></a> <a href="#cite_ref-CEE_4-6"><sup><i><b>g</b></i></sup></a> <a href="#cite_ref-CEE_4-7"><sup><i><b>h</b></i></sup></a> <a href="#cite_ref-CEE_4-8"><sup><i><b>i</b></i></sup></a></span> <span class="reference-text">Boys. Dean. <a rel="nofollow" class="external text" href="http://www.dean-boys.com/552/college_eye_extract_from_the_checo.htm">"College Eye Extract from the CHeco Report."</a> <i>dean-boys.com</i>. Retrieved: 13 March 2009.</span> </li> <li id="cite_note-bbc-5"><span class="mw-cite-backlink">^ <a href="#cite_ref-bbc_5-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-bbc_5-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://news.bbc.co.uk/2/hi/asia-pacific/5068662.stm">"N Korea in 'US spy plane' warning."</a> <i>BBC News,</i> 11 June 2006.</span> </li> <li id="cite_note-types-6"><span class="mw-cite-backlink">^ <a href="#cite_ref-types_6-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-types_6-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text">Boys, Dean. <a rel="nofollow" class="external text" href="http://www.dean-boys.com/ec-121.htm">"Lockheed EC-121 Constellation."</a> <i>dean-boys.com</i>. Retrieved: 13 March 2009.</span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-7">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://collections.naval.aviation.museum/emuwebdoncoms/pages/doncoms/Display.php?irn=16006962&QueryPage=%2FDtlQuery.php">"EC-121."</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20110727185133/http://collections.naval.aviation.museum/emuwebdoncoms/pages/doncoms/Display.php?irn=16006962&QueryPage=%2FDtlQuery.php">Archived</a> 2011-07-27 at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a> <i>National Museum of Naval Aviation.</i> Retrieved: 23 December 2010.</span> </li> <li id="cite_note-firebird-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-firebird_8-0">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.reenactor.net/vaq-33/connie.html">"The Connie."</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20110906042634/http://www.reenactor.net/vaq-33/connie.html">Archived</a> 2011-09-06 at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a> <i>VAQ-33 Firebirds.</i> Retrieved: 22 May 2007.</span> </li> <li id="cite_note-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-9">^</a></b></span> <span class="reference-text">Higham 2005, p. 318.</span> </li> <li id="cite_note-psyop-10"><span class="mw-cite-backlink">^ <a href="#cite_ref-psyop_10-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-psyop_10-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.spectrumwd.com/c130/articles/193rdsog.htm">"193rd Special Operations Group."</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20070630211421/http://www.spectrumwd.com/c130/articles/193rdsog.htm">Archived</a> 2007-06-30 at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a> <i>Pennsylvania ANG.</i> Retrieved: 23 May 2007.</span> </li> <li id="cite_note-barwv2-11"><span class="mw-cite-backlink">^ <a href="#cite_ref-barwv2_11-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-barwv2_11-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-barwv2_11-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text">Bouchard, Capt. Joseph F. (USN). <a rel="nofollow" class="external text" href="http://www.dean-boys.com/551aew/navy_air_defence.htm">"Guarding the Cold War Ramparts."</a> <i>dean-boys.com</i>. Retrieved: 13 March 2009.</span> </li> <li id="cite_note-golddigger-12"><span class="mw-cite-backlink"><b><a href="#cite_ref-golddigger_12-0">^</a></b></span> <span class="reference-text">Merryman, George. <a rel="nofollow" class="external text" href="http://www.dean-boys.com/966/gold%20digger.htm">"966th AEW&C Gold Digger Missions."</a> <i>dean-boys.com</i>. Retrieved: 13 March 2009.</span> </li> <li id="cite_note-jtc-13"><span class="mw-cite-backlink">^ <a href="#cite_ref-jtc_13-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-jtc_13-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text">Corell, John T. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20080513063318/http://www.afa.org/magazine/Nov2004/1104igloo.asp">"Igloo White."</a> <i>Air Force Magazine,</i> Vol. 87, No. 11, November 2004 via <i>web.archive.org</i>. Retrieved: 23 December 2010.</span> </li> <li id="cite_note-ec121-14"><span class="mw-cite-backlink">^ <a href="#cite_ref-ec121_14-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-ec121_14-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.dean-boys.com/extras/college/end.htm">"Big Eye College Eye Twelve Year Combat Era Ends."</a> <i>Dean Boys</i>. Retrieved: 13 March 2009.</span> </li> <li id="cite_note-15"><span class="mw-cite-backlink"><b><a href="#cite_ref-15">^</a></b></span> <span class="reference-text">Michel 1997 p. 46.</span> </li> <li id="cite_note-16"><span class="mw-cite-backlink"><b><a href="#cite_ref-16">^</a></b></span> <span class="reference-text">Michel 1997, pp. 47, 49.</span> </li> <li id="cite_note-17"><span class="mw-cite-backlink"><b><a href="#cite_ref-17">^</a></b></span> <span class="reference-text">Michel 1997, p. 48.</span> </li> <li id="cite_note-18"><span class="mw-cite-backlink"><b><a href="#cite_ref-18">^</a></b></span> <span class="reference-text">Michel 1997, p. 51.</span> </li> <li id="cite_note-19"><span class="mw-cite-backlink"><b><a href="#cite_ref-19">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://airforcehistoryindex.org/data/000/470/754.xml">USAFHRA Document 00470754</a></span> </li> <li id="cite_note-m100-20"><span class="mw-cite-backlink">^ <a href="#cite_ref-m100_20-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-m100_20-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text">Michel 1997, p. 100.</span> </li> <li id="cite_note-21"><span class="mw-cite-backlink"><b><a href="#cite_ref-21">^</a></b></span> <span class="reference-text">Michel 1997, p. 132.</span> </li> <li id="cite_note-Michel,_Clashes,_193-22"><span class="mw-cite-backlink">^ <a href="#cite_ref-Michel,_Clashes,_193_22-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Michel,_Clashes,_193_22-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text">Michel 1997, p. 193.</span> </li> <li id="cite_note-24"><span class="mw-cite-backlink"><b><a href="#cite_ref-24">^</a></b></span> <span class="reference-text">Michel 1997, p. 114.</span> </li> <li id="cite_note-25"><span class="mw-cite-backlink"><b><a href="#cite_ref-25">^</a></b></span> <span class="reference-text">Michel 1997, pp. 115, 252, 284.</span> </li> <li id="cite_note-26"><span class="mw-cite-backlink"><b><a href="#cite_ref-26">^</a></b></span> <span class="reference-text">Gargus 2007, pp. 87–89.</span> </li> <li id="cite_note-27"><span class="mw-cite-backlink"><b><a href="#cite_ref-27">^</a></b></span> <span class="reference-text">Gargus 2007, pp. 87, 90.</span> </li> <li id="cite_note-28"><span class="mw-cite-backlink"><b><a href="#cite_ref-28">^</a></b></span> <span class="reference-text">Gargus, pp. 124–125.</span> </li> <li id="cite_note-29"><span class="mw-cite-backlink"><b><a href="#cite_ref-29">^</a></b></span> <span class="reference-text">Gargus 2007, p. 161.</span> </li> <li id="cite_note-30"><span class="mw-cite-backlink"><b><a href="#cite_ref-30">^</a></b></span> <span class="reference-text">Gargus 2007, pp. 181–182.</span> </li> <li id="cite_note-31"><span class="mw-cite-backlink"><b><a href="#cite_ref-31">^</a></b></span> <span class="reference-text">Michel 1997, p. 284.</span> </li> <li id="cite_note-33"><span class="mw-cite-backlink"><b><a href="#cite_ref-33">^</a></b></span> <span class="reference-text">Michel 1997, p. 225.</span> </li> <li id="cite_note-34"><span class="mw-cite-backlink"><b><a href="#cite_ref-34">^</a></b></span> <span class="reference-text">Michel 1997, p. 227.</span> </li> <li id="cite_note-35"><span class="mw-cite-backlink"><b><a href="#cite_ref-35">^</a></b></span> <span class="reference-text">Michel 1997, p. 252.</span> </li> <li id="cite_note-38"><span class="mw-cite-backlink"><b><a href="#cite_ref-38">^</a></b></span> <span class="reference-text">Michel 1997, p, 253.</span> </li> <li id="cite_note-39"><span class="mw-cite-backlink"><b><a href="#cite_ref-39">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://personalpages.tdstelme.net/~westin/batcat/cathst.txt">"Batcat history."</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20040822223536/http://personalpages.tdstelme.net/~westin/batcat/cathst.txt">Archived</a> 2004-08-22 at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a> <i>tdstelme.net.</i> Retrieved: 23 December 2010.</span> </li> <li id="cite_note-40"><span class="mw-cite-backlink"><b><a href="#cite_ref-40">^</a></b></span> <span class="reference-text">Breffort 2006, p. 174.</span> </li> <li id="cite_note-xtra-41"><span class="mw-cite-backlink">^ <a href="#cite_ref-xtra_41-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-xtra_41-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFBoys" class="citation web cs1">Boys, Dean. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20210123064245/http://www.dean-boys.com/extras/military.htm">"Connie losses (total)"</a>. <i>dean-boys.com</i>. Archived from <a rel="nofollow" class="external text" href="http://www.dean-boys.com/extras/military.htm">the original</a> on January 23, 2021<span class="reference-accessdate">. Retrieved <span class="nowrap">22 May</span> 2007</span> – via <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=dean-boys.com&rft.atitle=Connie+losses+%28total%29&rft.aulast=Boys&rft.aufirst=Dean&rft_id=http%3A%2F%2Fwww.dean-boys.com%2Fextras%2Fmilitary.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3ALockheed+EC-121+Warning+Star" class="Z3988"></span></span> </li> <li id="cite_note-42"><span class="mw-cite-backlink"><b><a href="#cite_ref-42">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFJennerConnolly1967" class="citation news cs1">Jenner, Edward A.; Connolly, Richard J. (April 26, 1967). <a rel="nofollow" class="external text" href="https://www.newspapers.com/article/the-boston-globe-plane-crash-off-nantuck/157660001/">"Plane Crash Off Nantucket Kills 15--1 Survivor"</a>. <i><a href="/wiki/The_Boston_Globe" title="The Boston Globe">The Boston Globe</a></i>. p. 1<span class="reference-accessdate">. Retrieved <span class="nowrap">October 22,</span> 2024</span> – via newspapers.com.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=The+Boston+Globe&rft.atitle=Plane+Crash+Off+Nantucket+Kills+15--1+Survivor&rft.pages=1&rft.date=1967-04-26&rft.aulast=Jenner&rft.aufirst=Edward+A.&rft.au=Connolly%2C+Richard+J.&rft_id=https%3A%2F%2Fwww.newspapers.com%2Farticle%2Fthe-boston-globe-plane-crash-off-nantuck%2F157660001%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ALockheed+EC-121+Warning+Star" class="Z3988"></span></span> </li> <li id="cite_note-43"><span class="mw-cite-backlink"><b><a href="#cite_ref-43">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.petemuseum.org/EC121T.html">"EC-121T."</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20101128122913/http://petemuseum.org/EC121T.html">Archived</a> 2010-11-28 at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a> <i>Peterson Air & Space Museum Foundation.</i> Retrieved: 23 December 2010.</span> </li> <li id="cite_note-44"><span class="mw-cite-backlink"><b><a href="#cite_ref-44">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://www.youtube.com/watch?v=Sx-t8SFLifQ"><span class="plainlinks">Lockheed EC-121 Super Constellation Departing Camarillo 1/14/12</span></a> on <a href="/wiki/YouTube_video_(identifier)" class="mw-redirect" title="YouTube video (identifier)">YouTube</a></span> </li> <li id="cite_note-45"><span class="mw-cite-backlink"><b><a href="#cite_ref-45">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.nationalmuseum.af.mil/Visit/MuseumExhibits/FactSheets/Display/tabid/509/Article/196058/lockheed-ec-121d-constellation.aspx">"Lockheed EC-121D Constellation."</a> <i>National Museum of the US Air Force.</i> Retrieved: 5 September 2015.</span> </li> <li id="cite_note-46"><span class="mw-cite-backlink"><b><a href="#cite_ref-46">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.museumofaviation.org/aircraftCollection/cargo/11-ec121k.htm">"EC-12K."</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20070811052449/http://www.museumofaviation.org/aircraftCollection/cargo/11-ec121k.htm">Archived</a> 2007-08-11 at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a><i>Museum of Aviation.</i> Retrieved: 23 December 2010.</span> </li> <li id="cite_note-47"><span class="mw-cite-backlink"><b><a href="#cite_ref-47">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.joebaugher.com/navy_serials/thirdseries17.html">"USN Bureau Number Search (141311)"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">2018-02-14</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=USN+Bureau+Number+Search+%28141311%29&rft_id=http%3A%2F%2Fwww.joebaugher.com%2Fnavy_serials%2Fthirdseries17.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ALockheed+EC-121+Warning+Star" class="Z3988"></span></span> </li> <li id="cite_note-48"><span class="mw-cite-backlink"><b><a href="#cite_ref-48">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20180323131103/http://yankeeairmuseum.org/rescue/">"The Warning Star Rescue Project"</a>. Archived from <a rel="nofollow" class="external text" href="http://yankeeairmuseum.org/rescue/">the original</a> on 2018-03-23<span class="reference-accessdate">. Retrieved <span class="nowrap">2018-02-28</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=The+Warning+Star+Rescue+Project&rft_id=http%3A%2F%2Fyankeeairmuseum.org%2Frescue%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ALockheed+EC-121+Warning+Star" class="Z3988"></span></span> </li> <li id="cite_note-49"><span class="mw-cite-backlink"><b><a href="#cite_ref-49">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.willyvictor.com/Rantoul_Restoration/Plane.htm">"Willy Victor Lockheed EC-121 Warning Star."</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20160303211218/http://www.willyvictor.com/Rantoul_Restoration/Plane.htm">Archived</a> 2016-03-03 at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a> <i>willyvictor.com.</i> Retrieved: 26 April 2007.</span> </li> </ol></div> <div class="mw-heading mw-heading3"><h3 id="Bibliography">Bibliography</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lockheed_EC-121_Warning_Star&action=edit&section=28" title="Edit section: Bibliography"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239549316">.mw-parser-output .refbegin{margin-bottom:0.5em}.mw-parser-output .refbegin-hanging-indents>ul{margin-left:0}.mw-parser-output .refbegin-hanging-indents>ul>li{margin-left:0;padding-left:3.2em;text-indent:-3.2em}.mw-parser-output .refbegin-hanging-indents ul,.mw-parser-output .refbegin-hanging-indents ul li{list-style:none}@media(max-width:720px){.mw-parser-output .refbegin-hanging-indents>ul>li{padding-left:1.6em;text-indent:-1.6em}}.mw-parser-output .refbegin-columns{margin-top:0.3em}.mw-parser-output .refbegin-columns ul{margin-top:0}.mw-parser-output .refbegin-columns li{page-break-inside:avoid;break-inside:avoid-column}@media screen{.mw-parser-output .refbegin{font-size:90%}}</style><div class="refbegin" style=""> <ul><li><a href="/wiki/Walter_J._Boyne" title="Walter J. Boyne">Boyne, Walter J.</a> <i>Beyond the Horizons: The Lockheed Story</i>. New York: St. Martin's Press, 1998. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-312-24438-X" title="Special:BookSources/0-312-24438-X">0-312-24438-X</a>.</li> <li>Breffort, Dominique. <i>Lockheed Constellation: From Excalibur to Starliner, Civilian and Military Variants.</i> Paris: Histoire and Collections, 2006. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/2-915239-62-2" title="Special:BookSources/2-915239-62-2">2-915239-62-2</a>.</li> <li>Cacutt, Len, ed. “Lockheed Constellation.” <i>Great Aircraft of the World</i>. London: Marshall Cavendish, 1989. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/1-85435-250-4" title="Special:BookSources/1-85435-250-4">1-85435-250-4</a>.</li> <li>Gargus, John. <i>The Son Tay Raid: American POWs in Vietnam Were Not Forgotten</i>. College Station, Texas: Texas A&M Press, 2007. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/1-58544-622-X" title="Special:BookSources/1-58544-622-X">1-58544-622-X</a>.</li> <li>Germain, Scott E. <i>Lockheed Constellation and Super Constellation</i>. North Branch, Minnesota: Specialty Press, 1998. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/1-58007-000-0" title="Special:BookSources/1-58007-000-0">1-58007-000-0</a>.</li> <li>Higham, Robin, ed. <i>Flying American Combat Aircraft: The Cold War</i>. Mechanicsburg, Pennsylvania: Stackpole Press, 2005. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-8117-3238-X" title="Special:BookSources/0-8117-3238-X">0-8117-3238-X</a>.</li> <li>Marson, Peter J. <i>The Lockheed Constellation Series</i>. Tonbridge, Kent, UK: Air-Britain (Historians), 1982. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-85130-100-2" title="Special:BookSources/0-85130-100-2">0-85130-100-2</a>.</li> <li>Michel, Marshall L. <i>Clashes: Air Combat Over North Vietnam 1965–1972</i>. Annapolis, Maryland: Naval Institute Press, 1997. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/1-55750-585-3" title="Special:BookSources/1-55750-585-3">1-55750-585-3</a>.</li> <li>Stringfellow, Curtis K. and Peter M. Bowers. <i>Lockheed Constellation: A Pictorial History</i>. St. Paul, Minnesota: Motorbooks, 1992. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-87938-379-8" title="Special:BookSources/0-87938-379-8">0-87938-379-8</a>.</li> <li>Swanborough, Gordon and Peter M. Bowers. <i>US Navy Aircraft Since 1911.</i> Annapolis, Maryland: Naval Institute Press, 1990. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-0-87021-792-0" title="Special:BookSources/978-0-87021-792-0">978-0-87021-792-0</a>.</li> <li>Taylor, Michael J.H., ed. “Lockheed Constellation and Super Constellation.” <i>Jane’s Encyclopedia of Aviation</i>. New York: Crescent, 1993. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-517-10316-8" title="Special:BookSources/0-517-10316-8">0-517-10316-8</a>.</li> <li>Yenne, Bill, <i>Lockheed</i>. Greenwich, Connecticut: Bison Books, 1987. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-517-60471-X" title="Special:BookSources/0-517-60471-X">0-517-60471-X</a>.</li></ul> </div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lockheed_EC-121_Warning_Star&action=edit&section=29" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1235681985">.mw-parser-output .side-box{margin:4px 0;box-sizing:border-box;border:1px solid #aaa;font-size:88%;line-height:1.25em;background-color:var(--background-color-interactive-subtle,#f8f9fa);display:flow-root}.mw-parser-output .side-box-abovebelow,.mw-parser-output .side-box-text{padding:0.25em 0.9em}.mw-parser-output .side-box-image{padding:2px 0 2px 0.9em;text-align:center}.mw-parser-output .side-box-imageright{padding:2px 0.9em 2px 0;text-align:center}@media(min-width:500px){.mw-parser-output .side-box-flex{display:flex;align-items:center}.mw-parser-output .side-box-text{flex:1;min-width:0}}@media(min-width:720px){.mw-parser-output .side-box{width:238px}.mw-parser-output .side-box-right{clear:right;float:right;margin-left:1em}.mw-parser-output .side-box-left{margin-right:1em}}</style><style data-mw-deduplicate="TemplateStyles:r1237033735">@media print{body.ns-0 .mw-parser-output .sistersitebox{display:none!important}}@media screen{html.skin-theme-clientpref-night .mw-parser-output .sistersitebox img[src*="Wiktionary-logo-en-v2.svg"]{background-color:white}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .sistersitebox 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has media related to <span style="font-weight: bold; font-style: italic;"><a href="https://commons.wikimedia.org/wiki/Category:Lockheed_EC-121_Warning_Star" class="extiw" title="commons:Category:Lockheed EC-121 Warning Star">Lockheed EC-121 Warning Star</a></span>.</div></div> </div> <ul><li><a rel="nofollow" class="external text" href="http://www.nationalmuseum.af.mil/Visit/MuseumExhibits/FactSheets/Display/tabid/509/Article/196058/lockheed-ec-121d-constellation.aspx">Lockheed EC-121D Constellation</a> – <a href="/wiki/National_Museum_of_the_United_States_Air_Force" title="National Museum of the United States Air Force">National Museum of the United States Air Force</a></li> <li><a rel="nofollow" class="external text" href="http://www.aewa.org">Airborne Early Warning Association website</a></li> <li><a rel="nofollow" class="external text" href="http://www.westin553.net/batcat00.htm">Larry Westin EC-121R Batcat site</a></li> <li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20110718053336/http://www.willyvictor.com/Index.htm">Willy Victor (WV-2) Page</a></li> <li><a rel="nofollow" class="external text" href="http://www.dean-boys.com/shootdown/shoot.htm">Copy of <i>Time Magazine</i> article, April 25, 1969, on EC-121 shootdown</a></li></ul> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul dl,.mw-parser-output .hlist ul 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rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239334494"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239334494"></div><div role="navigation" class="navbox" aria-labelledby="Lockheed_and_Lockheed_Martin_aircraft_and_spacecraft" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><style data-mw-deduplicate="TemplateStyles:r1239400231">.mw-parser-output .navbar{display:inline;font-size:88%;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output .navbar-brackets::before{margin-right:-0.125em;content:"[ "}.mw-parser-output .navbar-brackets::after{margin-left:-0.125em;content:" ]"}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbar a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:114%;margin:0 7em}.mw-parser-output .navbar-ct-mini{font-size:114%;margin:0 4em}html.skin-theme-clientpref-night .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Lockheed_Martin_aircraft" title="Template:Lockheed Martin aircraft"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Lockheed_Martin_aircraft" title="Template talk:Lockheed Martin aircraft"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Lockheed_Martin_aircraft" title="Special:EditPage/Template:Lockheed Martin aircraft"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Lockheed_and_Lockheed_Martin_aircraft_and_spacecraft" style="font-size:114%;margin:0 4em"><a href="/wiki/Lockheed_Corporation" title="Lockheed Corporation">Lockheed</a> and <a href="/wiki/Lockheed_Martin" title="Lockheed Martin">Lockheed Martin</a> aircraft and spacecraft</div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Transports</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:11em">Vega family</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lockheed_Vega" title="Lockheed Vega">1 & 2 Vega</a></li> <li><a href="/wiki/Lockheed_Air_Express" title="Lockheed Air Express">3 Air Express</a></li> <li><a href="/wiki/Lockheed_Explorer" title="Lockheed Explorer">4 Explorer</a></li> <li><a href="/wiki/Lockheed_Vega" title="Lockheed Vega">5 Vega</a></li> <li><span class="tmp-color" style="color:grey">6</span><sup><small>1</small></sup></li> <li><a href="/wiki/Lockheed_Explorer" title="Lockheed Explorer">7 Explorer</a></li> <li><a href="/wiki/Lockheed_Model_8_Sirius" title="Lockheed Model 8 Sirius">8 Sirius</a></li> <li><a href="/wiki/Lockheed_Altair" title="Lockheed Altair">8-D, E & G Altair</a></li> <li><a href="/wiki/Lockheed_Model_9_Orion" title="Lockheed Model 9 Orion">9 Orion</a></li> <li><a href="/wiki/Lockheed_Vega" title="Lockheed Vega">DL.1 Vega</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:11em">Electra family</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lockheed_Model_10_Electra" title="Lockheed Model 10 Electra">10 Electra</a></li> <li><a href="/wiki/Lockheed_Model_12_Electra_Junior" title="Lockheed Model 12 Electra Junior">12 Electra Junior</a></li> <li><a href="/wiki/Lockheed_Model_14_Super_Electra" title="Lockheed Model 14 Super Electra">14 Super Electra</a> <ul><li><a href="/wiki/Lockheed_Hudson" title="Lockheed Hudson">414 Hudson</a></li></ul></li> <li><a href="/wiki/Lockheed_Model_18_Lodestar" title="Lockheed Model 18 Lodestar">18 Lodestar</a></li> <li><a href="/wiki/Lockheed_Ventura" title="Lockheed Ventura">37 Ventura</a></li> <li><a href="/wiki/Lockheed_PV-2_Harpoon" class="mw-redirect" title="Lockheed PV-2 Harpoon">43 Harpoon</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:11em">Constellation family</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lockheed_Constellation" title="Lockheed Constellation">Constellation</a></li> <li><a href="/wiki/Lockheed_L-049_Constellation" title="Lockheed L-049 Constellation">L-049</a></li> <li><a href="/wiki/Lockheed_L-649_Constellation" title="Lockheed L-649 Constellation">L-649</a></li> <li><a href="/wiki/Lockheed_L-749_Constellation" title="Lockheed L-749 Constellation">L-749</a></li> <li><a href="/wiki/Lockheed_L-1049_Super_Constellation" title="Lockheed L-1049 Super Constellation">L-1049</a></li> <li><a href="/wiki/Lockheed_L-1249_Super_Constellation" title="Lockheed L-1249 Super Constellation">L-1249</a></li> <li><a href="/wiki/Lockheed_L-1649_Starliner" title="Lockheed L-1649 Starliner">L-1649 Starliner</a></li> <li><a href="/wiki/Lockheed_C-69_Constellation" title="Lockheed C-69 Constellation">C-69</a></li> <li><a href="/wiki/Lockheed_C-121_Constellation" title="Lockheed C-121 Constellation">C-121</a></li> <li><a class="mw-selflink selflink">EC-121</a></li> <li><a href="/wiki/Lockheed_XB-30" title="Lockheed XB-30">XB-30</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:11em">C-130 Hercules family</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lockheed_C-130_Hercules" title="Lockheed C-130 Hercules">C-130</a></li> <li><a href="/wiki/Lockheed_Martin_C-130J_Super_Hercules" title="Lockheed Martin C-130J Super Hercules">C-130J</a></li> <li><a href="/wiki/Lockheed_AC-130" title="Lockheed AC-130">AC-130</a></li> <li><a href="/wiki/Lockheed_DC-130" title="Lockheed DC-130">DC-130</a></li> <li><a href="/wiki/Lockheed_HC-130" title="Lockheed HC-130">HC-130</a></li> <li><a href="/wiki/Lockheed_EC-130" title="Lockheed EC-130">EC-130</a> <ul><li><a href="/wiki/Lockheed_EC-130H_Compass_Call" title="Lockheed EC-130H Compass Call">EC-130H</a></li></ul></li> <li><a href="/wiki/Lockheed_Martin_KC-130" title="Lockheed Martin KC-130">KC-130</a></li> <li><a href="/wiki/Lockheed_LC-130" title="Lockheed LC-130">LC-130</a></li> <li><a href="/wiki/Lockheed_MC-130" title="Lockheed MC-130">MC-130</a></li> <li><a href="/wiki/Lockheed_WC-130" title="Lockheed WC-130">WC-130</a></li> <li><a href="/wiki/Lockheed_Martin_E-130J" title="Lockheed Martin E-130J">E-130J</a></li> <li><a href="/wiki/Lockheed_L-100_Hercules" title="Lockheed L-100 Hercules">L-100</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:11em">L-188 Electra family</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lockheed_L-188_Electra" title="Lockheed L-188 Electra">L-188</a></li> <li><a href="/wiki/Lockheed_P-3_Orion" title="Lockheed P-3 Orion">P-3</a></li> <li><a href="/wiki/Lockheed_EP-3" title="Lockheed EP-3">EP-3</a></li> <li><a href="/wiki/Lockheed_CP-140_Aurora" title="Lockheed CP-140 Aurora">CP-140</a></li> <li><a href="/wiki/Lockheed_P-7" title="Lockheed P-7">P-7</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:11em">Other types</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lockheed_C-5_Galaxy" title="Lockheed C-5 Galaxy">C-5</a></li> <li><a href="/wiki/Lockheed_C-141_Starlifter" title="Lockheed C-141 Starlifter">C-141</a></li> <li><a href="/wiki/Lockheed_Model_44_Excalibur" title="Lockheed Model 44 Excalibur">Excalibur</a></li> <li><a href="/wiki/Lockheed_JetStar" title="Lockheed JetStar">JetStar</a></li> <li><a href="/wiki/Lockheed_L-1011_TriStar" title="Lockheed L-1011 TriStar">L-1011 Tristar</a> <ul><li><a href="/wiki/Lockheed_TriStar_(RAF)" title="Lockheed TriStar (RAF)">RAF</a></li></ul></li> <li><a href="/wiki/Lockheed_L-2000" title="Lockheed L-2000">L-2000</a></li> <li><a href="/wiki/Lockheed_Saturn" title="Lockheed Saturn">Saturn</a></li> <li><a href="/wiki/Vega_Model_2_Starliner" title="Vega Model 2 Starliner">Vega Starliner</a></li> <li><a href="/wiki/Lockheed_R6V_Constitution" title="Lockheed R6V Constitution">R6V</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Fighter-bombers</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:11em">Lightning family</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lockheed_P-38_Lightning" title="Lockheed P-38 Lightning">P-38</a></li> <li><a href="/wiki/Lockheed_XP-49" title="Lockheed XP-49">XP-49</a></li> <li><a href="/wiki/Lockheed_XP-58_Chain_Lightning" title="Lockheed XP-58 Chain Lightning">XP-58</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:11em">Shooting Star family</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lockheed_P-80_Shooting_Star" title="Lockheed P-80 Shooting Star">F-80</a></li> <li><a href="/wiki/Lockheed_F-94_Starfire" title="Lockheed F-94 Starfire">F-94</a></li> <li><a href="/wiki/Lockheed_T-33" title="Lockheed T-33">T-33</a></li> <li><a href="/wiki/Lockheed_T2V_SeaStar" title="Lockheed T2V SeaStar">T2V</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:11em">Starfighter family</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lockheed_XF-104_Starfighter" title="Lockheed XF-104 Starfighter">XF-104</a></li> <li><a href="/wiki/Lockheed_F-104_Starfighter" title="Lockheed F-104 Starfighter">F-104</a></li> <li><a href="/wiki/Lockheed_NF-104A" title="Lockheed NF-104A">NF-104A</a></li> <li><a href="/wiki/Lockheed_CL-288" title="Lockheed CL-288">CL-288</a></li> <li><a href="/wiki/Lockheed_CL-1200_Lancer" title="Lockheed CL-1200 Lancer">CL-1200</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:11em">Raptor family</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lockheed_YF-22" title="Lockheed YF-22">YF-22</a></li> <li><a href="/wiki/Lockheed_Martin_F-22_Raptor" title="Lockheed Martin F-22 Raptor">F-22</a></li> <li><a href="/wiki/Lockheed_Martin_FB-22" title="Lockheed Martin FB-22">FB-22</a></li> <li><a href="/wiki/Lockheed_Martin_X-44_MANTA" title="Lockheed Martin X-44 MANTA">X-44 MANTA</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:11em">Other types</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lockheed_Martin_A-4AR_Fightinghawk" title="Lockheed Martin A-4AR Fightinghawk">A-4AR</a></li> <li><a href="/wiki/Lockheed_YP-24" title="Lockheed YP-24">A-9</a></li> <li><a href="/wiki/General_Dynamics_F-16_Fighting_Falcon" title="General Dynamics F-16 Fighting Falcon">F-16</a></li> <li><a href="/wiki/Lockheed_Martin_F-21" class="mw-redirect" title="Lockheed Martin F-21">F-21</a></li> <li><a href="/wiki/Lockheed_Martin_F-35_Lightning_II" title="Lockheed Martin F-35 Lightning II">F-35</a></li> <li><a href="/wiki/Lockheed_F-117_Nighthawk" title="Lockheed F-117 Nighthawk">F-117</a></li> <li><a href="/wiki/Lockheed_XFM-2" title="Lockheed XFM-2">XFM-2</a></li> <li><a href="/wiki/Lockheed_XF-90" title="Lockheed XF-90">XF-90</a></li> <li><a href="/wiki/Lockheed_YP-24" title="Lockheed YP-24">YP-24</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Reconnaissance</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:11em">Blackbird family</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lockheed_A-12" title="Lockheed A-12">A-12</a></li> <li><a href="/wiki/Lockheed_SR-71_Blackbird" title="Lockheed SR-71 Blackbird">SR-71 Blackbird</a></li> <li><a href="/wiki/Lockheed_YF-12" title="Lockheed YF-12">YF-12</a></li> <li><a href="/wiki/Lockheed_M-21" class="mw-redirect" title="Lockheed M-21">M-21</a></li> <li><a href="/wiki/Lockheed_D-21" title="Lockheed D-21">D-21</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:11em">Maritime patrol</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lockheed_Hudson" title="Lockheed Hudson">Hudson</a></li> <li><a href="/wiki/Lockheed_Ventura" title="Lockheed Ventura">PV-1 Ventura</a></li> <li><a href="/wiki/Lockheed_PV-2_Harpoon" class="mw-redirect" title="Lockheed PV-2 Harpoon">PV-2 Harpoon</a></li> <li><a href="/wiki/Lockheed_P-2_Neptune" title="Lockheed P-2 Neptune">P2V/P-2 Neptune</a></li> <li><a href="/wiki/Lockheed_S-3_Viking" title="Lockheed S-3 Viking">S-3 Viking</a></li> <li><a href="/wiki/Lockheed_P-3_Orion" title="Lockheed P-3 Orion">P-3 Orion</a></li> <li><a href="/wiki/Lockheed_CP-140_Aurora" title="Lockheed CP-140 Aurora">CP-140 Aurora</a></li> <li><a href="/wiki/Lockheed_P-7" title="Lockheed P-7">P-7 LRAACA</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:11em">Other crewed</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lockheed_CL-400_Suntan" title="Lockheed CL-400 Suntan">CL-400</a></li> <li><a href="/wiki/Lockheed_U-2" title="Lockheed U-2">U-2</a></li> <li><a href="/wiki/Lockheed_YO-3_Quiet_Star" title="Lockheed YO-3 Quiet Star">YO-3 Quiet Star</a></li> <li><a href="/wiki/Lockheed_U-2" title="Lockheed U-2">TR-1</a></li> <li><a href="/w/index.php?title=Lockheed_Martin_TR-X&action=edit&redlink=1" class="new" title="Lockheed Martin TR-X (page does not exist)">TR-X</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:11em">UAVs</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lockheed_Aequare" title="Lockheed Aequare">Aequare</a></li> <li><a href="/wiki/Lockheed_AQM-60_Kingfisher" title="Lockheed AQM-60 Kingfisher">AQM-60</a></li> <li><a href="/wiki/Lockheed_Martin_Cormorant" title="Lockheed Martin Cormorant">Cormorant (UAV)</a></li> <li><a href="/wiki/Lockheed_Martin_Desert_Hawk" title="Lockheed Martin Desert Hawk">Desert Hawk</a></li> <li><a href="/wiki/Lockheed_Martin_Desert_Hawk_III" title="Lockheed Martin Desert Hawk III">Desert Hawk III</a></li> <li><a href="/w/index.php?title=Lockheed_Martin_Fury&action=edit&redlink=1" class="new" title="Lockheed Martin Fury (page does not exist)">Fury</a></li> <li><a href="/wiki/Lockheed_MQM-105_Aquila" title="Lockheed MQM-105 Aquila">MQM-105</a></li> <li><a href="/wiki/Lockheed_Martin_Polecat" title="Lockheed Martin Polecat">Polecat</a></li> <li><a href="/wiki/Lockheed_Martin_RQ-3_DarkStar" title="Lockheed Martin RQ-3 DarkStar">RQ-3</a></li> <li><a href="/wiki/Lockheed_Martin_RQ-170_Sentinel" title="Lockheed Martin RQ-170 Sentinel">RQ-170</a></li> <li><a href="/wiki/Lockheed_Martin_SR-72" title="Lockheed Martin SR-72">SR-72</a></li> <li><a href="/wiki/Lockheed_Martin_X-44_(UAV)" title="Lockheed Martin X-44 (UAV)">X-44 (UAV)</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Trainers</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lockheed_T-33" title="Lockheed T-33">T-33</a></li> <li><a href="/wiki/Lockheed_T2V_SeaStar" title="Lockheed T2V SeaStar">T2V</a></li> <li><a href="/wiki/KAI_T-50_Golden_Eagle" title="KAI T-50 Golden Eagle">T-50A</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Helicopters</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lockheed_CL-475" title="Lockheed CL-475">CL-475</a></li> <li><a href="/wiki/Lockheed_XH-51" title="Lockheed XH-51">XH-51</a></li> <li><a href="/wiki/Lockheed_AH-56_Cheyenne" title="Lockheed AH-56 Cheyenne">AH-56 Cheyenne</a></li> <li><a href="/wiki/Lockheed_Martin_VH-71_Kestrel" title="Lockheed Martin VH-71 Kestrel">VH-71 Kestrel</a></li> <li><a href="/wiki/Sikorsky_VH-92_Patriot" title="Sikorsky VH-92 Patriot">VH-92 Patriot</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Experimental</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lockheed_Have_Blue" title="Lockheed Have Blue">Have Blue</a></li> <li><a href="/wiki/Lockheed_L-133" title="Lockheed L-133">L-133</a></li> <li><a href="/wiki/Lockheed_L-301" title="Lockheed L-301">L-301</a></li> <li><a href="/wiki/Lockheed_Senior_Peg" title="Lockheed Senior Peg">Senior Peg</a></li> <li><a href="/wiki/Lockheed_Senior_Prom" title="Lockheed Senior Prom">Senior Prom</a></li> <li><a href="/wiki/Lockheed_Star_Clipper" title="Lockheed Star Clipper">Star Clipper</a></li> <li><a href="/wiki/Lockheed_XC-35" title="Lockheed XC-35">XC-35</a></li> <li><a href="/wiki/Lockheed_X-7" title="Lockheed X-7">X-7</a></li> <li><a href="/wiki/Lockheed_X-17" title="Lockheed X-17">X-17</a></li> <li><a href="/wiki/Lockheed_L-301" title="Lockheed L-301">X-24C</a></li> <li><a href="/wiki/Schweizer_X-26_Frigate" title="Schweizer X-26 Frigate">X-26B</a></li> <li><a href="/wiki/Lockheed_Martin_X-33" title="Lockheed Martin X-33">X-33</a></li> <li><a href="/wiki/Lockheed_Martin_X-35" title="Lockheed Martin X-35">X-35</a></li> <li><a href="/wiki/Lockheed_Martin_X-55" title="Lockheed Martin X-55">X-55</a></li> <li><a href="/wiki/Lockheed_Martin_X-56" title="Lockheed Martin X-56">X-56</a></li> <li><a href="/wiki/Lockheed_Martin_X-59_Quesst" title="Lockheed Martin X-59 Quesst">X-59</a></li> <li><a href="/wiki/Lockheed_XFV" title="Lockheed XFV">XFV</a></li> <li><a href="/wiki/Lockheed_XV-4_Hummingbird" title="Lockheed XV-4 Hummingbird">XV-4</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Light aircraft</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lockheed_Big_Dipper" title="Lockheed Big Dipper">Big Dipper</a></li> <li><a href="/wiki/Lockheed_Explorer" title="Lockheed Explorer">Explorer</a></li> <li><a href="/wiki/Aermacchi_AL-60" title="Aermacchi AL-60">L-402</a></li> <li><a href="/wiki/Lockheed_Little_Dipper" title="Lockheed Little Dipper">Little Dipper</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Missiles</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/RM-81_Agena" title="RM-81 Agena">Agena</a></li> <li><a href="/wiki/High_Virgo" title="High Virgo">High Virgo</a></li> <li><a href="/wiki/UGM-89_Perseus" title="UGM-89 Perseus">Perseus</a></li> <li><a href="/wiki/Ping-Pong_(rocket)" title="Ping-Pong (rocket)">Ping-Pong</a></li> <li><a href="/wiki/UGM-27_Polaris" title="UGM-27 Polaris">Polaris</a></li> <li><a href="/wiki/UGM-73_Poseidon" title="UGM-73 Poseidon">Poseidon</a></li> <li><a href="/wiki/UGM-96_Trident_I" title="UGM-96 Trident I">Trident I</a></li> <li><a href="/wiki/UGM-133_Trident_II" title="UGM-133 Trident II">Trident II</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Engines</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lockheed_J37" title="Lockheed J37">J37/T35</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/List_of_Lockheed_aircraft" title="List of Lockheed aircraft">Model<br />numbers</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lockheed_Vega" title="Lockheed Vega">1</a></li> <li><a href="/wiki/Lockheed_Vega" title="Lockheed Vega">2</a></li> <li><a href="/wiki/Lockheed_Air_Express" title="Lockheed Air Express">3</a></li> <li><a href="/wiki/Lockheed_Explorer" title="Lockheed Explorer">4</a></li> <li><a href="/wiki/Lockheed_Vega" title="Lockheed Vega">5</a></li> <li><span class="tmp-color" style="color:grey">6</span><sup><small>1</small></sup></li> <li><a href="/wiki/Lockheed_Explorer" title="Lockheed Explorer">7</a></li> <li><a href="/wiki/Lockheed_Model_8_Sirius" title="Lockheed Model 8 Sirius">8</a> <ul><li><a href="/wiki/Lockheed_Altair" title="Lockheed Altair">A/D</a></li></ul></li> <li><a href="/wiki/Lockheed_Model_9_Orion" title="Lockheed Model 9 Orion">9</a></li> <li><a href="/wiki/Lockheed_Model_10_Electra" title="Lockheed Model 10 Electra">10</a></li> <li><a href="/wiki/Lockheed_XFM-2" title="Lockheed XFM-2">11</a></li> <li><a href="/wiki/Lockheed_Model_12_Electra_Junior" title="Lockheed Model 12 Electra Junior">12</a></li> <li><span class="tmp-color" style="color:grey">13</span><sup><small>1</small></sup></li> <li><a href="/wiki/Lockheed_Model_14_Super_Electra" title="Lockheed Model 14 Super Electra">14</a></li> <li><a href="/wiki/Lockheed_Ventura" title="Lockheed Ventura">15</a></li> <li><a href="/wiki/Lockheed_Model_10_Electra" title="Lockheed Model 10 Electra">16</a></li> <li><span class="tmp-color" style="color:grey">17</span><sup><small>1</small></sup></li> <li><a href="/wiki/Lockheed_Model_18_Lodestar" title="Lockheed Model 18 Lodestar">18</a></li> <li><a href="/wiki/Lockheed_Model_14_Super_Electra" title="Lockheed Model 14 Super Electra">19</a></li> <li><a href="/wiki/Lockheed_XP-58_Chain_Lightning" title="Lockheed XP-58 Chain Lightning">20</a></li> <li><a href="/wiki/Lockheed_Ventura" title="Lockheed Ventura">21</a></li> <li><a href="/wiki/Lockheed_P-38_Lightning" title="Lockheed P-38 Lightning">22</a></li> <li><a href="/wiki/Lockheed_XP-49" title="Lockheed XP-49">23</a></li> <li><a href="/wiki/Lockheed_P-38_Lightning" title="Lockheed P-38 Lightning">24</a></li> <li><span class="tmp-color" style="color:grey">25</span><sup><small>1</small></sup></li> <li><a href="/wiki/Lockheed_P-2_Neptune" title="Lockheed P-2 Neptune">26</a></li> <li><a href="/w/index.php?title=Lockheed_Model_27&action=edit&redlink=1" class="new" title="Lockheed Model 27 (page does not exist)">27</a></li> <li><span class="tmp-color" style="color:grey">28</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=Lockheed_Model_29&action=edit&redlink=1" class="new" title="Lockheed Model 29 (page does not exist)">29</a></li> <li><a href="/w/index.php?title=Lockheed_Model_30&action=edit&redlink=1" class="new" title="Lockheed Model 30 (page does not exist)">30</a></li> <li><a href="/w/index.php?title=Lockheed_Model_29&action=edit&redlink=1" class="new" title="Lockheed Model 29 (page does not exist)">31</a></li> <li><a href="/wiki/Lockheed_Model_18_Lodestar" title="Lockheed Model 18 Lodestar">32</a></li> <li><a href="/wiki/Lockheed_Little_Dipper" title="Lockheed Little Dipper">33</a></li> <li><a href="/wiki/Lockheed_Big_Dipper" title="Lockheed Big Dipper">34</a></li> <li><a href="/w/index.php?title=Lockheed_Model_35&action=edit&redlink=1" class="new" title="Lockheed Model 35 (page does not exist)">35</a></li> <li><span class="tmp-color" style="color:grey">36</span><sup><small>1</small></sup></li> <li><a href="/wiki/Lockheed_Ventura" title="Lockheed Ventura">37</a></li> <li><span class="tmp-color" style="color:grey">38</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">39</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=Lockheed_Model_40&action=edit&redlink=1" class="new" title="Lockheed Model 40 (page does not exist)">40</a></li> <li><a href="/w/index.php?title=Lockheed_Model_41&action=edit&redlink=1" class="new" title="Lockheed Model 41 (page does not exist)">41</a></li> <li><a href="/w/index.php?title=Lockheed_Model_42&action=edit&redlink=1" class="new" title="Lockheed Model 42 (page does not exist)">42</a></li> <li><a href="/wiki/Lockheed_Model_44_Excalibur" title="Lockheed Model 44 Excalibur">44</a></li> <li><a href="/w/index.php?title=Lockheed_Model_45&action=edit&redlink=1" class="new" title="Lockheed Model 45 (page does not exist)">45</a></li> <li><a href="/wiki/Lockheed_L-049_Constellation" title="Lockheed L-049 Constellation">49</a></li> <li><a href="/w/index.php?title=Lockheed_Model_50&action=edit&redlink=1" class="new" title="Lockheed Model 50 (page does not exist)">50</a></li> <li><a href="/wiki/Lockheed_XB-30" title="Lockheed XB-30">51</a></li> <li><a href="/w/index.php?title=Lockheed_Model_52&action=edit&redlink=1" class="new" title="Lockheed Model 52 (page does not exist)">52</a></li> <li><a href="/wiki/Aermacchi_AL-60" title="Aermacchi AL-60">60</a></li> <li><a href="/w/index.php?title=Lockheed_Model_61&action=edit&redlink=1" class="new" title="Lockheed Model 61 (page does not exist)">61</a></li> <li><a href="/w/index.php?title=Lockheed_Model_62&action=edit&redlink=1" class="new" title="Lockheed Model 62 (page does not exist)">62</a></li> <li><a href="/wiki/Lockheed_Saturn" title="Lockheed Saturn">75</a></li> <li><a href="/wiki/Lockheed_P-80_Shooting_Star" title="Lockheed P-80 Shooting Star">80</a></li> <li><a href="/wiki/Lockheed_XFV" title="Lockheed XFV">81</a></li> <li><a href="/wiki/Lockheed_C-130_Hercules" title="Lockheed C-130 Hercules">82</a></li> <li><a href="/wiki/Lockheed_F-104_Starfighter" title="Lockheed F-104 Starfighter">83</a></li> <li><a class="mw-selflink selflink">84</a></li> <li><a href="/wiki/Lockheed_P-3_Orion" title="Lockheed P-3 Orion">85</a></li> <li><a href="/wiki/Lockheed_XH-51" title="Lockheed XH-51">86</a></li> <li><a href="/wiki/Lockheed_AH-56_Cheyenne" title="Lockheed AH-56 Cheyenne">87</a></li> <li><a href="/wiki/Lockheed_L-188_Electra" title="Lockheed L-188 Electra">88</a></li> <li><a href="/wiki/Lockheed_R6V_Constitution" title="Lockheed R6V Constitution">89</a></li> <li><a href="/wiki/Lockheed_XF-90" title="Lockheed XF-90">90</a></li> <li><a href="/wiki/Lockheed_L-2000" title="Lockheed L-2000">91</a></li> <li><a href="/w/index.php?title=Lockheed_Model_92&action=edit&redlink=1" class="new" title="Lockheed Model 92 (page does not exist)">92</a></li> <li><a href="/wiki/Lockheed_L-1011_TriStar" title="Lockheed L-1011 TriStar">93</a></li> <li><a href="/wiki/Lockheed_S-3_Viking" title="Lockheed S-3 Viking">94</a></li> <li><a href="/w/index.php?title=Lockheed_Model_99&action=edit&redlink=1" class="new" title="Lockheed Model 99 (page does not exist)">99</a></li> <li><a href="/wiki/Lockheed_L-100_Hercules" title="Lockheed L-100 Hercules">100</a></li> <li><a href="/wiki/Lockheed_L-049_Constellation" title="Lockheed L-049 Constellation">104</a></li> <li><a href="/w/index.php?title=Lockheed_L-104&action=edit&redlink=1" class="new" title="Lockheed L-104 (page does not exist)">105</a></li> <li><a href="/wiki/Lockheed_P-38_Lightning" title="Lockheed P-38 Lightning">122</a></li> <li><a href="/w/index.php?title=Lockheed_L-129&action=edit&redlink=1" class="new" title="Lockheed L-129 (page does not exist)">129</a></li> <li><a href="/wiki/Lockheed_L-133" title="Lockheed L-133">133</a></li> <li><a href="/wiki/Lockheed_L-049_Constellation" title="Lockheed L-049 Constellation">136</a></li> <li><a href="/wiki/Lockheed_Ventura" title="Lockheed Ventura">137</a></li> <li><a href="/wiki/Lockheed_P-80_Shooting_Star" title="Lockheed P-80 Shooting Star">140</a></li> <li><a href="/wiki/Lockheed_P-80_Shooting_Star" title="Lockheed P-80 Shooting Star">141</a></li> <li><a href="/wiki/Lockheed_Model_44_Excalibur" title="Lockheed Model 44 Excalibur">144</a></li> <li><a href="/wiki/Lockheed_L-049_Constellation" title="Lockheed L-049 Constellation">149</a></li> <li><a href="/wiki/Lockheed_T-33" title="Lockheed T-33">170</a></li> <li><a href="/wiki/Lockheed_X-7" title="Lockheed X-7">171</a></li> <li><a href="/wiki/Lockheed_C-130_Hercules" title="Lockheed C-130 Hercules">182</a></li> <li><a href="/wiki/Lockheed_P-3_Orion" title="Lockheed P-3 Orion">185</a></li> <li><a href="/wiki/Lockheed_XH-51" title="Lockheed XH-51">186</a></li> <li><a href="/wiki/Lockheed_L-188_Electra" title="Lockheed L-188 Electra">188</a></li> <li><a href="/wiki/Lockheed_R6V_Constitution" title="Lockheed R6V Constitution">189</a></li> <li><a href="/wiki/Lockheed_L-193" title="Lockheed L-193">193</a></li> <li><a href="/wiki/Lockheed_F-94_Starfire" title="Lockheed F-94 Starfire">199</a></li> <li><a href="/wiki/Lockheed_Star_Clipper" title="Lockheed Star Clipper">200</a></li> <li><a href="/wiki/Lockheed_F-94_Starfire" title="Lockheed F-94 Starfire">204</a></li> <li><a href="/wiki/Lockheed_C-130_Hercules" title="Lockheed C-130 Hercules">206</a></li> <li><a href="/wiki/Lockheed_L-100_Hercules" title="Lockheed L-100 Hercules">207</a></li> <li><a href="/wiki/Lockheed_P-2_Neptune" title="Lockheed P-2 Neptune">210</a></li> <li><a href="/wiki/Lockheed_Model_12_Electra_Junior" title="Lockheed Model 12 Electra Junior">212</a></li> <li><a href="/wiki/Lockheed_P-38_Lightning" title="Lockheed P-38 Lightning">222</a></li> <li><a href="/wiki/Lockheed_XV-4_Hummingbird" title="Lockheed XV-4 Hummingbird">244</a></li> <li><a href="/wiki/Lockheed_T2V_SeaStar" title="Lockheed T2V SeaStar">245</a></li> <li><a href="/wiki/Lockheed_XF-104_Starfighter" title="Lockheed XF-104 Starfighter">246</a></li> <li><a href="/wiki/Lockheed_XB-30" title="Lockheed XB-30">249</a></li> <li><a href="/wiki/Lockheed_C-130_Hercules" title="Lockheed C-130 Hercules">282 (I)</a></li> <li><a href="/wiki/Lockheed_U-2" title="Lockheed U-2">282 (II)</a></li> <li><a href="/wiki/Lockheed_P-3_Orion" title="Lockheed P-3 Orion">285</a></li> <li><a href="/wiki/Lockheed_XH-51" title="Lockheed XH-51">286</a></li> <li><a href="/wiki/Lockheed_CL-288" title="Lockheed CL-288">288</a></li> <li><a href="/wiki/Lockheed_C-130_Hercules" title="Lockheed C-130 Hercules">293</a></li> <li><a href="/w/index.php?title=Lockheed_CL-295&action=edit&redlink=1" class="new" title="Lockheed CL-295 (page does not exist)">295</a></li> <li><a href="/w/index.php?title=Lockheed_CL-296&action=edit&redlink=1" class="new" title="Lockheed CL-296 (page does not exist)">296</a></li> <li><a href="/wiki/Lockheed_C-130_Hercules" title="Lockheed C-130 Hercules">298</a></li> <li><a href="/wiki/Lockheed_C-141_Starlifter" title="Lockheed C-141 Starlifter">300</a></li> <li><a href="/wiki/Lockheed_L-301" title="Lockheed L-301">301</a></li> <li><a href="/w/index.php?title=Lockheed_CL-320&action=edit&redlink=1" class="new" title="Lockheed CL-320 (page does not exist)">320</a></li> <li><a href="/wiki/Lockheed_P-38_Lightning" title="Lockheed P-38 Lightning">322</a></li> <li><a href="/wiki/Lockheed_CL-400_Suntan" title="Lockheed CL-400 Suntan">325</a></li> <li><a href="/wiki/Lockheed_JetStar" title="Lockheed JetStar">329</a></li> <li><a href="/wiki/Lockheed_XV-4_Hummingbird" title="Lockheed XV-4 Hummingbird">330</a></li> <li><a href="/wiki/Lockheed_XV-4_Hummingbird" title="Lockheed XV-4 Hummingbird">331</a></li> <li><a href="/wiki/Lockheed_F-104_Starfighter" title="Lockheed F-104 Starfighter">346</a></li> <li><a href="/wiki/Lockheed_C-69_Constellation" title="Lockheed C-69 Constellation">349</a></li> <li><a href="/wiki/Lockheed_U-2" title="Lockheed U-2">351</a></li> <li><a href="/w/index.php?title=Lockheed_CL-379&action=edit&redlink=1" class="new" title="Lockheed CL-379 (page does not exist)">379</a></li> <li><a href="/wiki/Lockheed_P-80_Shooting_Star" title="Lockheed P-80 Shooting Star">380</a></li> <li><a href="/wiki/Lockheed_L-100_Hercules" title="Lockheed L-100 Hercules">382</a></li> <li><a href="/wiki/Lockheed_R6V_Constitution" title="Lockheed R6V Constitution">389</a></li> <li><a href="/wiki/Lockheed_CL-400_Suntan" title="Lockheed CL-400 Suntan">400 (I)</a></li> <li><a href="/wiki/Lockheed_L-100_Hercules" title="Lockheed L-100 Hercules">400 (II)</a></li> <li><a href="/wiki/Aermacchi_AL-60" title="Aermacchi AL-60">402</a></li> <li><a href="/w/index.php?title=Lockheed_CL-407&action=edit&redlink=1" class="new" title="Lockheed CL-407 (page does not exist)">407</a></li> <li><a href="/wiki/Lockheed_Hudson" title="Lockheed Hudson">414</a></li> <li><a href="/wiki/Lockheed_P-38_Lightning" title="Lockheed P-38 Lightning">422</a></li> <li><a href="/wiki/Lockheed_Ventura" title="Lockheed Ventura">437</a></li> <li><a href="/wiki/Lockheed_L-049_Constellation" title="Lockheed L-049 Constellation">449</a></li> <li><a href="/wiki/Lockheed_CL-475" title="Lockheed CL-475">475</a></li> <li><a href="/wiki/Lockheed_P-80_Shooting_Star" title="Lockheed P-80 Shooting Star">480</a></li> <li><a href="/wiki/Lockheed_R6V_Constitution" title="Lockheed R6V Constitution">489</a></li> <li><a href="/wiki/Lockheed_C-5_Galaxy" title="Lockheed C-5 Galaxy">500</a></li> <li><a href="/wiki/Lockheed_P-3_Orion" title="Lockheed P-3 Orion">520</a></li> <li><a href="/wiki/Lockheed_XP-49" title="Lockheed XP-49">522</a></li> <li><a href="/wiki/Lockheed_C-69_Constellation" title="Lockheed C-69 Constellation">549</a></li> <li><a href="/wiki/Lockheed_T-33" title="Lockheed T-33">580</a></li> <li><a href="/wiki/Lockheed_XH-51" title="Lockheed XH-51">595</a></li> <li><a href="/wiki/Lockheed_P-38_Lightning" title="Lockheed P-38 Lightning">622</a></li> <li><a href="/wiki/Lockheed_Martin_F-22_Raptor" title="Lockheed Martin F-22 Raptor">645</a></li> <li><a href="/wiki/Lockheed_L-649_Constellation" title="Lockheed L-649 Constellation">649</a></li> <li><a href="/wiki/Lockheed_P-80_Shooting_Star" title="Lockheed P-80 Shooting Star">680</a></li> <li><a href="/wiki/Lockheed_P-3_Orion" title="Lockheed P-3 Orion">685</a></li> <li><a href="/wiki/Lockheed_CL-1200_Lancer" title="Lockheed CL-1200 Lancer">704</a></li> <li><a href="/wiki/Lockheed_L-749_Constellation" title="Lockheed L-749 Constellation">749</a></li> <li><a href="/w/index.php?title=Lockheed_CL-760&action=edit&redlink=1" class="new" title="Lockheed CL-760 (page does not exist)">760</a></li> <li><a href="/wiki/Lockheed_F-94_Starfire" title="Lockheed F-94 Starfire">780</a></li> <li><a href="/wiki/Lockheed_P-3_Orion" title="Lockheed P-3 Orion">785</a></li> <li><a href="/wiki/Lockheed_P-38_Lightning" title="Lockheed P-38 Lightning">822</a></li> <li><a href="/wiki/Lockheed_L-2000" title="Lockheed L-2000">823</a></li> <li><a href="/wiki/Lockheed_AH-56_Cheyenne" title="Lockheed AH-56 Cheyenne">840</a></li> <li><a href="/wiki/Lockheed_L-749_Constellation" title="Lockheed L-749 Constellation">849</a></li> <li><a href="/wiki/Lockheed_F-94_Starfire" title="Lockheed F-94 Starfire">880</a></li> <li><a href="/wiki/Lockheed_F-104_Starfighter" title="Lockheed F-104 Starfighter">901</a></li> <li><a href="/wiki/Lockheed_A-12" title="Lockheed A-12">915</a></li> <li><a href="/wiki/Lockheed_F-104_Starfighter" title="Lockheed F-104 Starfighter">934</a></li> <li><a href="/wiki/Lockheed_L-749_Constellation" title="Lockheed L-749 Constellation">949</a></li> <li><a href="/w/index.php?title=Lockheed_CL-977-16&action=edit&redlink=1" class="new" title="Lockheed CL-977-16 (page does not exist)">977</a></li> <li><a href="/wiki/Lockheed_F-94_Starfire" title="Lockheed F-94 Starfire">980</a></li> <li><a href="/wiki/Lockheed_L-2000" title="Lockheed L-2000">981</a></li> <li><a href="/wiki/Lockheed_F-94_Starfire" title="Lockheed F-94 Starfire">984</a></li> <li><a href="/wiki/Lockheed_F-94_Starfire" title="Lockheed F-94 Starfire">985</a></li> <li><a href="/wiki/Lockheed_S-3_Viking" title="Lockheed S-3 Viking">995</a></li> <li><a href="/wiki/Lockheed_J37" title="Lockheed J37">1000</a></li> <li><a href="/wiki/Lockheed_F-104_Starfighter" title="Lockheed F-104 Starfighter">1010</a></li> <li><a href="/wiki/Lockheed_L-1011_TriStar" title="Lockheed L-1011 TriStar">1011</a></li> <li><a href="/wiki/Lockheed_P-2_Neptune" title="Lockheed P-2 Neptune">1020</a></li> <li><a href="/wiki/Lockheed_AH-56_Cheyenne" title="Lockheed AH-56 Cheyenne">1026</a></li> <li><a href="/wiki/Lockheed_L-1049_Super_Constellation" title="Lockheed L-1049 Super Constellation">1049</a> <ul><li><a class="mw-selflink selflink">A</a></li></ul></li> <li><a href="/wiki/Lockheed_CL-1060" class="mw-redirect" title="Lockheed CL-1060">1060</a></li> <li><a href="/wiki/Lockheed_T2V_SeaStar" title="Lockheed T2V SeaStar">1080</a></li> <li><a href="/wiki/Lockheed_CL-1090" class="mw-redirect" title="Lockheed CL-1090">1090</a></li> <li><a href="/wiki/Lockheed_YF-22" title="Lockheed YF-22">1132</a></li> <li><a href="/wiki/Lockheed_L-1049_Super_Constellation" title="Lockheed L-1049 Super Constellation">1149</a></li> <li><a href="/w/index.php?title=Lockheed_CL-1195&action=edit&redlink=1" class="new" title="Lockheed CL-1195 (page does not exist)">1195</a></li> <li><a href="/wiki/Lockheed_CL-1200_Lancer" title="Lockheed CL-1200 Lancer">1200</a></li> <li><a href="/wiki/Lockheed_CL-1201" title="Lockheed CL-1201">1201</a></li> <li><a href="/w/index.php?title=Lockheed_CL-1235&action=edit&redlink=1" class="new" title="Lockheed CL-1235 (page does not exist)">1235</a></li> <li><a href="/w/index.php?title=Lockheed_CL-1236&action=edit&redlink=1" class="new" title="Lockheed CL-1236 (page does not exist)">1236</a></li> <li><a href="/w/index.php?title=Lockheed_CL-1237&action=edit&redlink=1" class="new" title="Lockheed CL-1237 (page does not exist)">1237</a></li> <li><a href="/wiki/Lockheed_L-1249_Super_Constellation" title="Lockheed L-1249 Super Constellation">1249</a></li> <li><a href="/wiki/Lockheed_JetStar" title="Lockheed JetStar">1329</a></li> <li><a href="/wiki/Lockheed_CL-1200_Lancer" title="Lockheed CL-1200 Lancer">1400</a></li> <li><a href="/wiki/Lockheed_L-1049_Super_Constellation" title="Lockheed L-1049 Super Constellation">1449</a></li> <li><a href="/wiki/Lockheed_L-1049_Super_Constellation" title="Lockheed L-1049 Super Constellation">1549</a></li> <li><a href="/wiki/Lockheed_CL-1200_Lancer" title="Lockheed CL-1200 Lancer">1600</a></li> <li><a href="/wiki/Lockheed_L-1649_Starliner" title="Lockheed L-1649 Starliner">1649</a></li> <li><a href="/wiki/Lockheed_AH-56_Cheyenne" title="Lockheed AH-56 Cheyenne">1700</a></li> <li><a href="/w/index.php?title=Lockheed_CL-1800&action=edit&redlink=1" class="new" title="Lockheed CL-1800 (page does not exist)">1800</a></li> <li><a href="/wiki/Lockheed_A-12" title="Lockheed A-12">1980</a></li> <li><a href="/wiki/Lockheed_L-2000" title="Lockheed L-2000">2000</a></li> <li><a href="/wiki/Lockheed_JetStar" title="Lockheed JetStar">2329</a></li></ul> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Vega" scope="row" class="navbox-group" style="width:11em">Vega</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lockheed_Altair" title="Lockheed Altair">1</a></li> <li><a href="/wiki/Vega_Model_2_Starliner" title="Vega Model 2 Starliner">2</a></li> <li><span class="tmp-color" style="color:grey">3</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">4</span><sup><small>1</small></sup></li> <li><a href="/wiki/Armstrong_Whitworth_Ensign" title="Armstrong Whitworth Ensign">5</a></li> <li><a href="/wiki/Handley_Page_Hampden" title="Handley Page Hampden">6</a></li> <li><span class="tmp-color" style="color:grey">7–10</span><sup><small>1</small></sup></li> <li><a href="/wiki/Lockheed_Altair" title="Lockheed Altair">11</a></li> <li><span class="tmp-color" style="color:grey">12–14</span><sup><small>1</small></sup></li> <li><a href="/wiki/Lockheed_Ventura" title="Lockheed Ventura">15</a></li> <li><span class="tmp-color" style="color:grey">16</span><sup><small>1</small></sup></li> <li><a href="/wiki/Boeing_B-17_Flying_Fortress" title="Boeing B-17 Flying Fortress">17</a></li> <li><a href="/wiki/Lockheed_Model_18_Lodestar" title="Lockheed Model 18 Lodestar">18</a></li> <li><span class="tmp-color" style="color:grey">19</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">20</span><sup><small>1</small></sup></li> <li><a href="/wiki/Lockheed_Ventura" title="Lockheed Ventura">21</a></li> <li><a href="/wiki/Vega_Model_2_Starliner" title="Vega Model 2 Starliner">22</a></li> <li><a href="/wiki/Lockheed_Ventura" title="Lockheed Ventura">23</a></li> <li><a href="/wiki/Vega_Model_2_Starliner" title="Vega Model 2 Starliner">24</a></li> <li><span class="tmp-color" style="color:grey">25</span><sup><small>1</small></sup></li> <li><a href="/wiki/Lockheed_P-2_Neptune" title="Lockheed P-2 Neptune">26</a></li> <li><span class="tmp-color" style="color:grey">27–32</span><sup><small>1</small></sup></li> <li><a href="/wiki/Lockheed_Little_Dipper" title="Lockheed Little Dipper">33</a></li> <li><a href="/wiki/Lockheed_Big_Dipper" title="Lockheed Big Dipper">34</a></li> <li><a href="/wiki/North_American_NA-35" title="North American NA-35">35</a></li> <li><span class="tmp-color" style="color:grey">36</span><sup><small>1</small></sup></li> <li><a href="/wiki/Lockheed_Ventura" title="Lockheed Ventura">37</a></li> <li><span class="tmp-color" style="color:grey">38</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">39</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=Vega_Model_40&action=edit&redlink=1" class="new" title="Vega Model 40 (page does not exist)">40</a></li> <li><a href="/w/index.php?title=Vega_Model_41&action=edit&redlink=1" class="new" title="Vega Model 41 (page does not exist)">41</a></li> <li><a href="/w/index.php?title=Vega_Model_42&action=edit&redlink=1" class="new" title="Vega Model 42 (page does not exist)">42</a></li> <li><a href="/wiki/Lockheed_Ventura" title="Lockheed Ventura">43</a></li></ul> </div></td></tr></tbody></table><div> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div><sup>1</sup> Not assigned</div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Lockheed_Constellation_family" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Lockheed_Constellation_family" title="Template:Lockheed Constellation family"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Lockheed_Constellation_family" title="Template talk:Lockheed Constellation family"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Lockheed_Constellation_family" title="Special:EditPage/Template:Lockheed Constellation family"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Lockheed_Constellation_family" style="font-size:114%;margin:0 4em"><a href="/wiki/Lockheed_Corporation" title="Lockheed Corporation">Lockheed</a> <a href="/wiki/List_of_Lockheed_Constellation_variants" title="List of Lockheed Constellation variants">Constellation family</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Model numbers</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lockheed_L-049_Constellation" title="Lockheed L-049 Constellation">L-049</a></li> <li><a href="/wiki/Lockheed_XB-30" title="Lockheed XB-30">L-051</a></li> <li><a class="mw-selflink selflink">L-084</a></li> <li><a href="/wiki/Lockheed_L-049_Constellation" title="Lockheed L-049 Constellation">L-104</a></li> <li><a href="/wiki/Lockheed_L-049_Constellation" title="Lockheed L-049 Constellation">L-139</a></li> <li><a href="/wiki/Lockheed_L-049_Constellation" title="Lockheed L-049 Constellation">L-149</a></li> <li><a href="/wiki/Lockheed_XB-30" title="Lockheed XB-30">L-249</a></li> <li><a href="/wiki/Lockheed_C-69_Constellation" title="Lockheed C-69 Constellation">L-349</a></li> <li><a href="/wiki/Lockheed_L-049_Constellation" title="Lockheed L-049 Constellation">L-449</a></li> <li><a href="/wiki/Lockheed_C-69_Constellation" title="Lockheed C-69 Constellation">L-549</a></li> <li><a href="/wiki/Lockheed_L-649_Constellation" title="Lockheed L-649 Constellation">L-649</a></li> <li><a href="/wiki/Lockheed_L-749_Constellation" title="Lockheed L-749 Constellation">L-749</a></li> <li><a href="/wiki/Lockheed_L-749_Constellation" title="Lockheed L-749 Constellation">L-849</a></li> <li><a href="/wiki/Lockheed_L-749_Constellation" title="Lockheed L-749 Constellation">L-949</a></li> <li><a href="/wiki/Lockheed_L-1049_Super_Constellation" title="Lockheed L-1049 Super Constellation">L-1049</a> <ul><li><a class="mw-selflink selflink">A</a></li> <li><a href="/wiki/Lockheed_C-121_Constellation" title="Lockheed C-121 Constellation">B/F</a></li></ul></li> <li><a href="/wiki/Lockheed_L-1049_Super_Constellation" title="Lockheed L-1049 Super Constellation">L-1149</a></li> <li><a href="/wiki/Lockheed_L-1249_Super_Constellation" title="Lockheed L-1249 Super Constellation">L-1249</a></li> <li><a href="/wiki/Lockheed_L-1649_Starliner" title="Lockheed L-1649 Starliner">L-1449</a></li> <li><a href="/wiki/Lockheed_L-1649_Starliner" title="Lockheed L-1649 Starliner">L-1549</a></li> <li><a href="/wiki/Lockheed_L-1649_Starliner" title="Lockheed L-1649 Starliner">L-1649</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Names</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lockheed_L-049_Constellation" title="Lockheed L-049 Constellation">Constellation (I)</a></li> <li><a href="/wiki/Lockheed_L-649_Constellation" title="Lockheed L-649 Constellation">Constellation (II)</a></li> <li><a href="/wiki/Lockheed_L-749_Constellation" title="Lockheed L-749 Constellation">Constellation (III)</a></li> <li><a href="/wiki/Lockheed_L-749_Constellation" title="Lockheed L-749 Constellation">Speedfreighter</a></li> <li><a href="/wiki/Lockheed_L-1649_Starliner" title="Lockheed L-1649 Starliner">Starliner</a></li> <li><a href="/wiki/Lockheed_L-1049_Super_Constellation" title="Lockheed L-1049 Super Constellation">Super Constellation (I)</a></li> <li><a href="/wiki/Lockheed_L-1249_Super_Constellation" title="Lockheed L-1249 Super Constellation">Super Constellation (II)</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Military designations</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lockheed_XB-30" title="Lockheed XB-30">B-30</a></li></ul> <ul><li><a href="/wiki/Lockheed_C-69_Constellation" title="Lockheed C-69 Constellation">C-69</a></li> <li><a href="/wiki/Lockheed_C-121_Constellation" title="Lockheed C-121 Constellation">C-121</a> <ul><li><a href="/wiki/Lockheed_L-1249_Super_Constellation" title="Lockheed L-1249 Super Constellation">F</a></li> <li><a class="mw-selflink selflink">EC-121</a></li></ul></li></ul> <ul><li><a class="mw-selflink selflink">PO</a></li></ul> <ul><li><a href="/wiki/Lockheed_C-121_Constellation" title="Lockheed C-121 Constellation">R7O/R7V</a> <ul><li><a href="/wiki/Lockheed_L-1249_Super_Constellation" title="Lockheed L-1249 Super Constellation">-2</a></li></ul></li></ul> <ul><li><a class="mw-selflink selflink">WV</a></li> <li><a class="mw-selflink selflink">W2V</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/List_of_accidents_and_incidents_involving_the_Lockheed_Constellation" title="List of accidents and incidents involving the Lockheed Constellation">Accidents and incidents</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/TWA_Flight_513" title="TWA Flight 513">TWA Flight 513</a> (1946)</li> <li><a href="/wiki/TWA_Flight_6963" title="TWA Flight 6963">TWA Flight 6963</a> (1946)</li> <li><a href="/wiki/Pan_Am_Flight_121" title="Pan Am Flight 121">Pan Am Flight 121</a> (1947)</li> <li><a href="/wiki/Pan_Am_Flight_1-10" title="Pan Am Flight 1-10">Pan Am Flight 1-10</a> (1948)</li> <li><a href="/wiki/Air_France_Flight_009" title="Air France Flight 009">Air France Flight 009</a> (1949)</li> <li><a href="/wiki/TWA_Flight_903" title="TWA Flight 903">TWA Flight 903</a> (1950)</li> <li><a href="/wiki/Air_India_Flight_245" title="Air India Flight 245">Air India Flight 245</a> (1950)</li> <li><a href="/wiki/Pan_Am_Flight_151" title="Pan Am Flight 151">Pan Am Flight 151</a> (1951)</li> <li><a href="/wiki/Air_France_Flight_152" title="Air France Flight 152">Air France Flight 152</a> (1953)</li> <li><a href="/wiki/Air_France_Flight_178" title="Air France Flight 178">Air France Flight 178</a> (1953)</li> <li><a href="/wiki/KLM_Flight_633" title="KLM Flight 633">KLM Flight 633</a> (1954)</li> <li><a href="/wiki/Kashmir_Princess" title="Kashmir Princess">Air India Flight 300</a> (1955)</li> <li><a href="/wiki/El_Al_Flight_402" title="El Al Flight 402">El Al Flight 402</a> (1955)</li> <li><a href="/wiki/Linea_Aeropostal_Venezolana_Flight_253_(June_1956)" title="Linea Aeropostal Venezolana Flight 253 (June 1956)">LAV Flight 253 (June 1956)</a></li> <li><a href="/wiki/1956_Grand_Canyon_mid-air_collision" title="1956 Grand Canyon mid-air collision">TWA Flight 2</a> (1956)</li> <li><a href="/wiki/Linea_Aeropostal_Venezolana_Flight_253_(November_1956)" title="Linea Aeropostal Venezolana Flight 253 (November 1956)">LAV Flight 253 (November 1956)</a></li> <li><a href="/wiki/KLM_Flight_844" title="KLM Flight 844">KLM Flight 844</a> (1957)</li> <li><a href="/wiki/KLM_Flight_607-E" title="KLM Flight 607-E">KLM Flight 607-E</a> (1958)</li> <li><a href="/wiki/Lufthansa_Flight_502" title="Lufthansa Flight 502">Lufthansa Flight 502</a> (1959)</li> <li><a href="/wiki/TWA_Flight_891" title="TWA Flight 891">TWA Flight 891</a> (1959)</li> <li><a href="/wiki/Avianca_Flight_671" title="Avianca Flight 671">Avianca Flight 671</a> (1960)</li> <li><a href="/wiki/Air_France_Flight_343" title="Air France Flight 343">Air France Flight 343</a> (1960)</li> <li><a href="/wiki/1960_New_York_mid-air_collision" title="1960 New York mid-air collision">TWA Flight 266</a> (1960)</li> <li><a href="/wiki/Air_France_Flight_406" title="Air France Flight 406">Air France Flight 406</a> (1961)</li> <li><a href="/wiki/TWA_Flight_529" title="TWA Flight 529">TWA Flight 529</a> (1961)</li> <li><a href="/wiki/Imperial_Airlines_Flight_201/8" title="Imperial Airlines Flight 201/8">IA Flight 201/8</a> (1961)</li> <li><a href="/wiki/Flying_Tiger_Line_Flight_739" title="Flying Tiger Line Flight 739">FTL Flight 739</a> (1962)</li> <li><a href="/wiki/Paradise_Airlines_Flight_901A" title="Paradise Airlines Flight 901A">Paradise Airlines Flight 901A</a> (1964)</li> <li><a href="/wiki/1965_Carmel_mid-air_collision" title="1965 Carmel mid-air collision">EAL Flight 853</a> (1965)</li> <li><a href="/wiki/LANSA_Flight_501" title="LANSA Flight 501">LANSA Flight 501</a> (1966)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Notable aircraft</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/Avion_Pirata" title="Avion Pirata">Avion Pirata</a></i></li> <li><i><a href="/wiki/Columbine_II" title="Columbine II">Columbine II</a></i></li> <li><i><a href="/wiki/Kashmir_Princess" title="Kashmir Princess">Kashmir Princess</a></i></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Topics</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/List_of_Lockheed_Constellation_operators" title="List of Lockheed Constellation operators">Operators</a></li> <li><a href="/wiki/List_of_Lockheed_Constellation_variants" title="List of Lockheed Constellation variants">Variants</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="USN_AEW_aircraft_designations_pre-1962" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:USN_AEW_aircraft" title="Template:USN AEW aircraft"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:USN_AEW_aircraft" title="Template talk:USN AEW aircraft"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:USN_AEW_aircraft" title="Special:EditPage/Template:USN AEW aircraft"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="USN_AEW_aircraft_designations_pre-1962" style="font-size:114%;margin:0 4em"><a href="/wiki/United_States_Navy" title="United States Navy">USN</a> AEW aircraft designations pre-1962</div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Grumman" title="Grumman">Grumman</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Grumman_E-1_Tracer" title="Grumman E-1 Tracer">WF</a></li> <li><a href="/wiki/Northrop_Grumman_E-2_Hawkeye" class="mw-redirect" title="Northrop Grumman E-2 Hawkeye">W2F</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Vought" title="Vought">Vought</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Vought_XS2U" title="Vought XS2U">WU</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Lockheed_Corporation" title="Lockheed Corporation">Lockheed</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a class="mw-selflink selflink">WV</a></li> <li><a class="mw-selflink selflink">W2V</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239334494"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239334494"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239334494"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239334494"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239334494"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239334494"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239334494"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239334494"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239334494"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239334494"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239334494"></div><div role="navigation" class="navbox" aria-labelledby="United_States_military_transport_aircraft_designations,_Army/Air_Force_and_Tri-Service_systems" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:USAF_transports" title="Template:USAF transports"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:USAF_transports" title="Template talk:USAF transports"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:USAF_transports" title="Special:EditPage/Template:USAF transports"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="United_States_military_transport_aircraft_designations,_Army/Air_Force_and_Tri-Service_systems" style="font-size:114%;margin:0 4em">United States <a href="/wiki/Military_transport_aircraft" title="Military transport aircraft">military transport aircraft</a> designations, Army/Air Force and <a href="/wiki/1962_United_States_Tri-Service_aircraft_designation_system" title="1962 United States Tri-Service aircraft designation system">Tri-Service</a> systems</div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Army/Air Force sequence<br />(1925–1962)</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Douglas_C-1" title="Douglas C-1">C-1</a></li> <li><a href="/wiki/Fokker_F.VII" title="Fokker F.VII">C-2</a></li> <li><a href="/wiki/Ford_Trimotor" title="Ford Trimotor">C-3</a></li> <li><a href="/wiki/Ford_Trimotor" title="Ford Trimotor">C-4</a></li> <li><a href="/wiki/Fokker_F-10" title="Fokker F-10">C-5</a></li> <li><a href="/wiki/Sikorsky_S-38" title="Sikorsky S-38">C-6</a></li> <li><a href="/wiki/Fokker_F-10" title="Fokker F-10">C-7</a></li> <li><a href="/wiki/Fairchild_71" title="Fairchild 71">C-8</a></li> <li><a href="/wiki/Ford_Trimotor" title="Ford Trimotor">C-9</a></li> <li><a href="/wiki/Curtiss_Robin" title="Curtiss Robin">C-10</a></li> <li><a href="/wiki/Consolidated_Fleetster" title="Consolidated Fleetster">C-11</a></li> <li><a href="/wiki/Lockheed_Vega" title="Lockheed Vega">C-12</a></li> <li><span class="tmp-color" style="color:grey">C-13</span><sup><small>1</small></sup></li> <li><a href="/wiki/Fokker_F-14" title="Fokker F-14">C-14</a></li> <li><a href="/wiki/Fokker_F-14" title="Fokker F-14">C-15</a></li> <li><a href="/wiki/Fokker_F-11" title="Fokker F-11">C-16</a></li> <li><a href="/wiki/Lockheed_Vega" title="Lockheed Vega">C-17</a></li> <li><a href="/wiki/Boeing_Monomail" title="Boeing Monomail">C-18</a></li> <li><a href="/wiki/Northrop_C-19_Alpha" title="Northrop C-19 Alpha">C-19</a></li> <li><a href="/wiki/Fokker_F-32" title="Fokker F-32">C-20</a></li> <li><a href="/wiki/Douglas_Dolphin" title="Douglas Dolphin">C-21</a></li> <li><a href="/wiki/Consolidated_Fleetster" title="Consolidated Fleetster">C-22</a></li> <li><a href="/wiki/Lockheed_Altair" title="Lockheed Altair">C-23</a></li> <li><a href="/wiki/Fairchild_100_Pilgrim" title="Fairchild 100 Pilgrim">C-24</a></li> <li><a href="/wiki/Lockheed_Altair" title="Lockheed Altair">C-25</a></li> <li><a href="/wiki/Douglas_Dolphin" title="Douglas Dolphin">C-26</a></li> <li><a href="/wiki/Bellanca_Aircruiser" title="Bellanca Aircruiser">C-27</a></li> <li><a href="/wiki/Sikorsky_S-39" title="Sikorsky S-39">C-28</a></li> <li><a href="/wiki/Douglas_Dolphin" title="Douglas Dolphin">C-29</a></li> <li><a href="/wiki/Curtiss_T-32_Condor_II" title="Curtiss T-32 Condor II">C-30</a></li> <li><a href="/wiki/Kreider-Reisner_XC-31" title="Kreider-Reisner XC-31">C-31</a></li> <li><a href="/wiki/Douglas_DC-2" title="Douglas DC-2">C-32</a></li> <li><a href="/wiki/Douglas_DC-2" title="Douglas DC-2">C-33</a></li> <li><a href="/wiki/Douglas_DC-2" title="Douglas DC-2">C-34</a></li> <li><a href="/wiki/Lockheed_XC-35" title="Lockheed XC-35">C-35</a></li> <li><a href="/wiki/Lockheed_Model_10_Electra" title="Lockheed Model 10 Electra">C-36</a></li> <li><a href="/wiki/Lockheed_Model_10_Electra" title="Lockheed Model 10 Electra">C-37</a></li> <li><a href="/wiki/Douglas_DC-2" title="Douglas DC-2">C-38</a></li> <li><a href="/wiki/Douglas_DC-2" title="Douglas DC-2">C-39</a></li> <li><a href="/wiki/Lockheed_Model_12_Electra_Junior" title="Lockheed Model 12 Electra Junior">C-40</a></li> <li><a href="/wiki/Douglas_DC-2" title="Douglas DC-2">C-41</a> <ul><li><a href="/wiki/Douglas_DC-3" title="Douglas DC-3">C-41A</a></li></ul></li> <li><a href="/wiki/Douglas_DC-2" title="Douglas DC-2">C-42</a></li> <li><a href="/wiki/Beechcraft_Model_17_Staggerwing" title="Beechcraft Model 17 Staggerwing">C-43</a></li> <li><a href="/wiki/Messerschmitt_Bf_108_Taifun" title="Messerschmitt Bf 108 Taifun">C-44</a></li> <li><a href="/wiki/Beechcraft_Model_18" title="Beechcraft Model 18">C-45</a></li> <li><a href="/wiki/Curtiss_C-46_Commando" title="Curtiss C-46 Commando">C-46</a></li> <li><a href="/wiki/Douglas_C-47_Skytrain" title="Douglas C-47 Skytrain">C-47</a> <ul><li><a href="/wiki/Douglas_R4D-8" title="Douglas R4D-8">C-47F</a></li> <li><a href="/wiki/Basler_BT-67" title="Basler BT-67">C-47T</a></li> <li><a href="/wiki/Douglas_AC-47_Spooky" title="Douglas AC-47 Spooky">AC-47</a></li></ul></li> <li><a href="/wiki/Douglas_DC-3" title="Douglas DC-3">C-48</a></li> <li><a href="/wiki/Douglas_DC-3" title="Douglas DC-3">C-49</a></li> <li><a href="/wiki/Douglas_DC-3" title="Douglas DC-3">C-50</a></li> <li><a href="/wiki/Douglas_DC-3" title="Douglas DC-3">C-51</a></li> <li><a href="/wiki/Douglas_DC-3" title="Douglas DC-3">C-52</a></li> <li><a href="/wiki/Douglas_C-47_Skytrain" title="Douglas C-47 Skytrain">C-53</a></li> <li><a href="/wiki/Douglas_C-54_Skymaster" title="Douglas C-54 Skymaster">C-54</a></li> <li><a href="/wiki/Curtiss_C-46_Commando" title="Curtiss C-46 Commando">C-55</a></li> <li><a href="/wiki/Lockheed_Model_18_Lodestar" title="Lockheed Model 18 Lodestar">C-56</a></li> <li><a href="/wiki/Lockheed_Model_18_Lodestar" title="Lockheed Model 18 Lodestar">C-57</a></li> <li><a href="/wiki/Douglas_B-18_Bolo" title="Douglas B-18 Bolo">C-58</a></li> <li><a href="/wiki/Lockheed_Model_18_Lodestar" title="Lockheed Model 18 Lodestar">C-59</a></li> <li><a href="/wiki/Lockheed_Model_18_Lodestar" title="Lockheed Model 18 Lodestar">C-60</a></li> <li><a href="/wiki/Fairchild_24" title="Fairchild 24">C-61</a></li> <li><a href="/wiki/Waco_C-62" title="Waco C-62">C-62</a></li> <li><a href="/wiki/Lockheed_Hudson" title="Lockheed Hudson">C-63</a></li> <li><a href="/wiki/Noorduyn_Norseman" title="Noorduyn Norseman">C-64</a></li> <li><a href="/wiki/Stout_Skycar" title="Stout Skycar">C-65</a></li> <li><a href="/wiki/Lockheed_Model_18_Lodestar" title="Lockheed Model 18 Lodestar">C-66</a></li> <li><a href="/wiki/Douglas_B-23_Dragon" title="Douglas B-23 Dragon">C-67</a></li> <li><a href="/wiki/Douglas_DC-3" title="Douglas DC-3">C-68</a></li> <li><a href="/wiki/Lockheed_C-69_Constellation" title="Lockheed C-69 Constellation">C-69</a></li> <li><a href="/wiki/Howard_DGA-8" title="Howard DGA-8">C-70</a> <ul><li><a href="/wiki/Howard_DGA-15" title="Howard DGA-15">C-70B</a></li></ul></li> <li><a href="/wiki/Spartan_Executive" title="Spartan Executive">C-71</a></li> <li><a href="/wiki/Waco_C-72" title="Waco C-72">C-72</a></li> <li><a href="/wiki/Boeing_247" title="Boeing 247">C-73</a></li> <li><a href="/wiki/Douglas_C-74_Globemaster" title="Douglas C-74 Globemaster">C-74</a></li> <li><a href="/wiki/Boeing_307_Stratoliner" title="Boeing 307 Stratoliner">C-75</a></li> <li><a href="/wiki/Curtiss-Wright_C-76_Caravan" title="Curtiss-Wright C-76 Caravan">C-76</a></li> <li><a href="/wiki/Cessna_DC-6" title="Cessna DC-6">C-77</a> <ul><li><a href="/wiki/Cessna_Airmaster" title="Cessna Airmaster">C-77B–D</a></li></ul></li> <li><a href="/wiki/Cessna_AT-17_Bobcat" title="Cessna AT-17 Bobcat">C-78</a></li> <li><a href="/wiki/Junkers_Ju_52" title="Junkers Ju 52">C-79</a></li> <li><a href="/wiki/Harlow_PJC-2" title="Harlow PJC-2">C-80</a></li> <li><a href="/wiki/Stinson_Reliant" title="Stinson Reliant">C-81</a></li> <li><a href="/wiki/Fairchild_C-82_Packet" title="Fairchild C-82 Packet">C-82</a></li> <li><a href="/wiki/Piper_J-5" title="Piper J-5">C-83</a> <ul><li><a href="/wiki/Piper_J-3_Cub" title="Piper J-3 Cub">C-83A</a></li> <li><a href="/wiki/Piper_J-4" title="Piper J-4">C-83B</a></li></ul></li> <li><a href="/wiki/Douglas_DC-3" title="Douglas DC-3">C-84</a></li> <li><a href="/wiki/Lockheed_Model_9_Orion" title="Lockheed Model 9 Orion">C-85</a></li> <li><a href="/wiki/Fairchild_24" title="Fairchild 24">C-86</a></li> <li><a href="/wiki/Consolidated_C-87_Liberator_Express" title="Consolidated C-87 Liberator Express">C-87</a></li> <li><a href="/wiki/Fairchild_45" title="Fairchild 45">C-88</a></li> <li><a href="/wiki/Hamilton_H-47" title="Hamilton H-47">C-89</a></li> <li><a href="/wiki/Luscombe_8" title="Luscombe 8">C-90</a></li> <li><a href="/wiki/Stinson_Airliner" title="Stinson Airliner">C-91</a></li> <li><a href="/wiki/Funk_B" title="Funk B">C-92</a></li> <li><a href="/wiki/Budd_RB_Conestoga" title="Budd RB Conestoga">C-93</a></li> <li><a href="/wiki/Cessna_Airmaster" title="Cessna Airmaster">C-94</a></li> <li><a href="/wiki/Taylorcraft_L-2" title="Taylorcraft L-2">C-95</a></li> <li><a href="/wiki/Fairchild_FC-2" title="Fairchild FC-2">C-96</a></li> <li><a href="/wiki/Boeing_C-97_Stratofreighter" title="Boeing C-97 Stratofreighter">C-97</a> <ul><li><a href="/wiki/Boeing_KC-97_Stratofreighter" title="Boeing KC-97 Stratofreighter">KC-97</a></li></ul></li> <li><a href="/wiki/Boeing_314_Clipper" title="Boeing 314 Clipper">C-98</a></li> <li><a href="/wiki/Convair_XC-99" title="Convair XC-99">C-99</a></li> <li><a href="/wiki/Northrop_Gamma" title="Northrop Gamma">C-100</a></li> <li><a href="/wiki/Lockheed_Vega" title="Lockheed Vega">C-101</a></li> <li><a href="/wiki/Rearwin_Sportster" title="Rearwin Sportster">C-102</a></li> <li><a href="/wiki/Grumman_F3F" title="Grumman F3F">C-103</a></li> <li><a href="/wiki/Lockheed_Model_18_Lodestar" title="Lockheed Model 18 Lodestar">C-104</a></li> <li><a href="/wiki/Boeing_XB-15" title="Boeing XB-15">C-105</a></li> <li><a href="/wiki/Cessna_C-106_Loadmaster" title="Cessna C-106 Loadmaster">C-106</a></li> <li><a href="/wiki/Stout_Skycar" title="Stout Skycar">C-107</a></li> <li><a href="/wiki/Boeing_C-108_Flying_Fortress" title="Boeing C-108 Flying Fortress">C-108</a></li> <li><a href="/wiki/Consolidated_C-87_Liberator_Express" title="Consolidated C-87 Liberator Express">C-109</a></li> <li><a href="/wiki/Douglas_DC-5" title="Douglas DC-5">C-110</a></li> <li><a href="/wiki/Lockheed_Model_14_Super_Electra" title="Lockheed Model 14 Super Electra">C-111</a></li> <li><a href="/wiki/Douglas_DC-6" title="Douglas DC-6">C-112</a></li> <li><a href="/wiki/Curtiss_C-46_Commando" title="Curtiss C-46 Commando">C-113</a></li> <li><a href="/wiki/Douglas_C-54_Skymaster" title="Douglas C-54 Skymaster">C-114</a></li> <li><a href="/wiki/Douglas_C-54_Skymaster" title="Douglas C-54 Skymaster">C-115</a></li> <li><a href="/wiki/Douglas_C-54_Skymaster" title="Douglas C-54 Skymaster">C-116</a></li> <li><a href="/wiki/Douglas_C-47_Skytrain" title="Douglas C-47 Skytrain">C-117</a> <ul><li><a href="/wiki/Douglas_R4D-8" title="Douglas R4D-8">C-117D</a></li></ul></li> <li><a href="/wiki/Douglas_DC-6" title="Douglas DC-6">C-118</a></li> <li><a href="/wiki/Fairchild_C-119_Flying_Boxcar" title="Fairchild C-119 Flying Boxcar">C-119</a> <ul><li><a href="/wiki/Fairchild_AC-119" title="Fairchild AC-119">AC-119</a></li></ul></li> <li><a href="/wiki/Fairchild_XC-120_Packplane" title="Fairchild XC-120 Packplane">C-120</a></li> <li><a href="/wiki/Lockheed_C-121_Constellation" title="Lockheed C-121 Constellation">C-121</a> <ul><li><a href="/wiki/Lockheed_L-1249_Super_Constellation" title="Lockheed L-1249 Super Constellation">C-121F</a></li> <li><a class="mw-selflink selflink">EC-121</a></li></ul></li> <li><a href="/wiki/Chase_YC-122_Avitruc" title="Chase YC-122 Avitruc">C-122</a></li> <li><a href="/wiki/Fairchild_C-123_Provider" title="Fairchild C-123 Provider">C-123</a> <ul><li><a href="/wiki/Chase_XC-123A" title="Chase XC-123A">C-123A</a></li></ul></li> <li><a href="/wiki/Douglas_C-124_Globemaster_II" title="Douglas C-124 Globemaster II">C-124</a></li> <li><a href="/wiki/Northrop_YC-125_Raider" title="Northrop YC-125 Raider">C-125</a></li> <li><a href="/wiki/Cessna_195" title="Cessna 195">C-126</a></li> <li>C-127<sup><small>2</small></sup> <ul><li><a href="/wiki/De_Havilland_Canada_DHC-2_Beaver" title="De Havilland Canada DHC-2 Beaver">C-127 (I)</a></li> <li><a href="/wiki/Douglas_C-124_Globemaster_II" title="Douglas C-124 Globemaster II">C-127 (II)</a></li></ul></li> <li><a href="/wiki/Fairchild_XC-120_Packplane" title="Fairchild XC-120 Packplane">C-128</a></li> <li><a href="/wiki/Douglas_R4D-8" title="Douglas R4D-8">C-129</a></li> <li><a href="/wiki/Lockheed_C-130_Hercules" title="Lockheed C-130 Hercules">C-130</a> <ul><li><a href="/wiki/Lockheed_Martin_C-130J_Super_Hercules" title="Lockheed Martin C-130J Super Hercules">C-130J</a></li> <li><a href="/wiki/Lockheed_AC-130" title="Lockheed AC-130">AC-130</a></li> <li><a href="/wiki/Lockheed_DC-130" title="Lockheed DC-130">DC-130</a></li> <li><a href="/wiki/Lockheed_EC-130" title="Lockheed EC-130">EC-130</a>/<a href="/wiki/Lockheed_EC-130H_Compass_Call" title="Lockheed EC-130H Compass Call">H</a></li> <li><a href="/wiki/Lockheed_HC-130" title="Lockheed HC-130">HC-130</a></li> <li><a href="/wiki/Lockheed_Martin_KC-130" title="Lockheed Martin KC-130">KC-130</a></li> <li><a href="/wiki/Lockheed_LC-130" title="Lockheed LC-130">LC-130</a></li> <li><a href="/wiki/Lockheed_MC-130" title="Lockheed MC-130">MC-130</a></li> <li><a href="/wiki/Lockheed_WC-130" title="Lockheed WC-130">WC-130</a></li></ul></li> <li><a href="/wiki/Convair_C-131_Samaritan" title="Convair C-131 Samaritan">C-131</a> <ul><li><a href="/wiki/Convair_NC-131H_Samaritan" title="Convair NC-131H Samaritan">NC-131H</a></li></ul></li> <li><a href="/wiki/Douglas_C-132" title="Douglas C-132">C-132</a></li> <li><a href="/wiki/Douglas_C-133_Cargomaster" title="Douglas C-133 Cargomaster">C-133</a></li> <li><a href="/wiki/Stroukoff_YC-134" title="Stroukoff YC-134">C-134</a></li> <li><a href="/wiki/Boeing_C-135_Stratolifter" title="Boeing C-135 Stratolifter">C-135</a> <ul><li><a href="/wiki/Boeing_KC-135_Stratotanker" title="Boeing KC-135 Stratotanker">KC-135</a></li></ul></li> <li><a href="/wiki/Fairchild_C-123_Provider" title="Fairchild C-123 Provider">C-136</a></li> <li>C-137<sup><small>2</small></sup> <ul><li><a href="/wiki/Boeing_C-97_Stratofreighter" title="Boeing C-97 Stratofreighter">YC-137 (I)</a></li> <li><a href="/wiki/De_Havilland_Canada_DHC-3_Otter" title="De Havilland Canada DHC-3 Otter">YC-137 (II)</a></li> <li><a href="/wiki/Boeing_C-137_Stratoliner" title="Boeing C-137 Stratoliner">C-137</a></li></ul></li> <li><span class="tmp-color" style="color:grey">C-138</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">C-139</span><sup><small>1</small></sup></li> <li><a href="/wiki/Lockheed_JetStar" title="Lockheed JetStar">C-140</a></li> <li><a href="/wiki/Lockheed_C-141_Starlifter" title="Lockheed C-141 Starlifter">C-141</a></li> <li><a href="/wiki/LTV_XC-142" title="LTV XC-142">C-142</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Tri-service sequence<br />(1962–present)</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Grumman_C-1_Trader" title="Grumman C-1 Trader">C-1</a></li> <li><a href="/wiki/Grumman_C-2_Greyhound" title="Grumman C-2 Greyhound">C-2</a></li> <li><a href="/wiki/Martin_4-0-4" title="Martin 4-0-4">C-3</a></li> <li><a href="/wiki/Grumman_Gulfstream_I" title="Grumman Gulfstream I">C-4</a></li> <li><a href="/wiki/Lockheed_C-5_Galaxy" title="Lockheed C-5 Galaxy">C-5</a></li> <li><a href="/wiki/Beechcraft_King_Air" title="Beechcraft King Air">C-6</a></li> <li>C-7<sup><small>2</small></sup> <ul><li><a href="/wiki/De_Havilland_Canada_DHC-4_Caribou" title="De Havilland Canada DHC-4 Caribou">C-7</a></li> <li><a href="/wiki/De_Havilland_Canada_Dash_7" title="De Havilland Canada Dash 7">RC-7</a></li></ul></li> <li><a href="/wiki/De_Havilland_Canada_DHC-5_Buffalo" title="De Havilland Canada DHC-5 Buffalo">C-8</a></li> <li><a href="/wiki/McDonnell_Douglas_C-9" title="McDonnell Douglas C-9">C-9</a></li> <li>C-10<sup><small>2</small></sup> <ul><li><a href="/wiki/Handley_Page_Jetstream" title="Handley Page Jetstream">C-10</a></li> <li><a href="/wiki/McDonnell_Douglas_KC-10_Extender" title="McDonnell Douglas KC-10 Extender">KC-10</a></li></ul></li> <li><a href="/wiki/Grumman_Gulfstream_II" title="Grumman Gulfstream II">C-11</a></li> <li><a href="/wiki/Beechcraft_C-12_Huron" title="Beechcraft C-12 Huron">C-12</a> <ul><li><a href="/wiki/Beechcraft_RC-12_Guardrail" title="Beechcraft RC-12 Guardrail">RC-12</a></li></ul></li> <li><span class="tmp-color" style="color:grey">C-13</span><sup><small>1</small></sup></li> <li><a href="/wiki/Boeing_YC-14" title="Boeing YC-14">C-14</a></li> <li><a href="/wiki/McDonnell_Douglas_YC-15" title="McDonnell Douglas YC-15">C-15</a></li> <li><span class="tmp-color" style="color:grey">C-16</span><sup><small>1</small></sup></li> <li><a href="/wiki/Boeing_C-17_Globemaster_III" title="Boeing C-17 Globemaster III">C-17</a></li> <li><a href="/wiki/Boeing_C-137_Stratoliner" title="Boeing C-137 Stratoliner">C-18</a></li> <li><a href="/wiki/Boeing_747" title="Boeing 747">C-19</a></li> <li>C-20<sup><small>2</small></sup> <ul><li><a href="/wiki/Gulfstream_III" title="Gulfstream III">C-20A–D</a></li> <li><a href="/wiki/Gulfstream_IV" title="Gulfstream IV">C-20F–J</a></li></ul></li> <li><a href="/wiki/Learjet_35" title="Learjet 35">C-21</a></li> <li><a href="/wiki/Boeing_727" title="Boeing 727">C-22</a></li> <li><a href="/wiki/Short_C-23_Sherpa" title="Short C-23 Sherpa">C-23</a></li> <li><a href="/wiki/Douglas_DC-8" title="Douglas DC-8">C-24</a></li> <li><a href="/wiki/Boeing_VC-25" title="Boeing VC-25">C-25</a></li> <li><a href="/wiki/Fairchild_C-26_Metroliner" title="Fairchild C-26 Metroliner">C-26</a></li> <li><a href="/wiki/Aeritalia_G.222" title="Aeritalia G.222">C-27</a> <ul><li><a href="/wiki/Alenia_C-27J_Spartan" title="Alenia C-27J Spartan">C-27J</a></li></ul></li> <li><a href="/wiki/Cessna_404_Titan" title="Cessna 404 Titan">C-28</a></li> <li><a href="/wiki/Hawker_800" title="Hawker 800">C-29</a></li> <li><span class="tmp-color" style="color:grey">C-30</span><sup><small>1</small></sup></li> <li><a href="/wiki/Fokker_F27_Friendship" title="Fokker F27 Friendship">C-31</a></li> <li><a href="/wiki/Boeing_C-32" title="Boeing C-32">C-32</a></li> <li><a href="/wiki/Boeing_747-400" title="Boeing 747-400">C-33</a></li> <li><span class="tmp-color" style="color:grey">C-34</span><sup><small>1</small></sup></li> <li><a href="/wiki/Cessna_Citation_V" title="Cessna Citation V">C-35</a></li> <li><a href="/wiki/Boeing_YAL-1" title="Boeing YAL-1">C-36</a><sup><small>3</small></sup></li> <li><a href="/wiki/Gulfstream_V" title="Gulfstream V">C-37</a> <ul><li><a href="/wiki/Gulfstream_G550" title="Gulfstream G550">C-37B</a></li></ul></li> <li><a href="/wiki/Gulfstream_G100" title="Gulfstream G100">C-38</a></li> <li><span class="tmp-color" style="color:grey">C-39</span><sup><small>1</small></sup></li> <li><a href="/wiki/Boeing_C-40_Clipper" title="Boeing C-40 Clipper">C-40</a></li> <li><a href="/wiki/CASA_C-212_Aviocar" title="CASA C-212 Aviocar">C-41</a></li> <li><span class="tmp-color" style="color:grey">C-42</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">C-43</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">C-44</span><sup><small>1</small></sup></li> <li><a href="/wiki/EADS/Northrop_Grumman_KC-45" title="EADS/Northrop Grumman KC-45">C-45</a></li> <li><a href="/wiki/Boeing_KC-46_Pegasus" title="Boeing KC-46 Pegasus">C-46</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Revived original sequence<br />(2005–present)</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Bombardier_Challenger_600_series" title="Bombardier Challenger 600 series">C-143</a></li> <li><a href="/wiki/EADS_HC-144_Ocean_Sentry" title="EADS HC-144 Ocean Sentry">C-144</a></li> <li><a href="/wiki/PZL_M28_Skytruck" title="PZL M28 Skytruck">C-145</a></li> <li><a href="/wiki/Dornier_328" title="Dornier 328">C-146</a></li> <li><a href="/wiki/De_Havilland_Canada_Dash_8" title="De Havilland Canada Dash 8">C-147</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Non-sequential designations</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Boeing_KC-767" title="Boeing KC-767">C-767</a></li> <li><a href="/wiki/Convair_880" title="Convair 880">C-880</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Related designations</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/North_American_Sabreliner" title="North American Sabreliner">CT-39</a></li> <li><a href="/wiki/Boeing_T-43" title="Boeing T-43">CT-43</a></li> <li><a href="/wiki/De_Havilland_Canada_DHC-4_Caribou" title="De Havilland Canada DHC-4 Caribou">CV-2</a></li> <li><a href="/wiki/De_Havilland_Canada_DHC-5_Buffalo" title="De Havilland Canada DHC-5 Buffalo">CV-7</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div><sup>1</sup> Not assigned  •  <sup>2</sup> Assigned to multiple types  •  <sup>3</sup> Unconfirmed</div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=Lockheed_EC-121_Warning_Star&oldid=1256253376">https://en.wikipedia.org/w/index.php?title=Lockheed_EC-121_Warning_Star&oldid=1256253376</a>"</div></div> <div 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