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<div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Operational history</span> </div> </a> <ul id="toc-Operational_history-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Notable_appearances_in_media" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Notable_appearances_in_media"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Notable appearances in media</span> </div> </a> <ul id="toc-Notable_appearances_in_media-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Specifications_(YB-49)" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Specifications_(YB-49)"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Specifications (YB-49)</span> </div> </a> <ul id="toc-Specifications_(YB-49)-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-See_also" 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class="firstHeading mw-first-heading"><span class="mw-page-title-main">Northrop YB-49</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Go to an article in another language. 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interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Northrop_YB-49" title="Northrop YB-49 – German" lang="de" hreflang="de" data-title="Northrop YB-49" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Northrop_YB-49" title="Northrop YB-49 – Spanish" lang="es" hreflang="es" data-title="Northrop YB-49" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%86%D9%88%D8%B1%D8%AB%D8%B1%D9%88%D9%BE_%D9%88%D8%A7%DB%8C%E2%80%8C%D8%A8%DB%8C-%DB%B4%DB%B9" title="نورثروپ وای‌بی-۴۹ – Persian" lang="fa" hreflang="fa" data-title="نورثروپ وای‌بی-۴۹" 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/Northrop_YB-49" title="Northrop YB-49 – French" lang="fr" hreflang="fr" data-title="Northrop YB-49" 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/%EB%85%B8%EC%8A%A4%EB%A1%AD_YB-49" title="노스롭 YB-49 – Korean" lang="ko" hreflang="ko" data-title="노스롭 YB-49" 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/Northrop_YB-49" title="Northrop YB-49 – Indonesian" lang="id" hreflang="id" data-title="Northrop YB-49" 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/Northrop_YB-49" title="Northrop YB-49 – Italian" lang="it" hreflang="it" data-title="Northrop YB-49" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Northrop_YB-49" title="Northrop YB-49 – Lithuanian" lang="lt" hreflang="lt" data-title="Northrop YB-49" data-language-autonym="Lietuvių" data-language-local-name="Lithuanian" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/YB-49_(%E8%88%AA%E7%A9%BA%E6%A9%9F)" title="YB-49 (航空機) – Japanese" lang="ja" hreflang="ja" data-title="YB-49 (航空機)" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Northrop_YB-49" title="Northrop YB-49 – Polish" lang="pl" hreflang="pl" data-title="Northrop YB-49" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Northrop_YB-49" title="Northrop YB-49 – Portuguese" lang="pt" hreflang="pt" data-title="Northrop YB-49" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Northrop_YB-49" title="Northrop YB-49 – Romanian" lang="ro" hreflang="ro" data-title="Northrop YB-49" data-language-autonym="Română" 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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) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><style data-mw-deduplicate="TemplateStyles:r1248642317">.mw-parser-output .ib-aircraft .infobox-above{line-height:1.6em;background-color:#eee}.mw-parser-output .ib-aircraft .infobox-header{border-top:1px solid #a2a9b1;border-bottom:1px solid #a2a9b1;line-height:23px;background-color:#eee}.mw-parser-output .ib-aircraft-caption{padding:0.3em 0 0 0}.mw-parser-output .ib-aircraft-caption-left .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">YB-49</th></tr><tr><td colspan="2" class="infobox-full-data"><span typeof="mw:File"><a href="/wiki/File:YB49-2_300.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/YB49-2_300.jpg/300px-YB49-2_300.jpg" decoding="async" width="300" height="238" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/YB49-2_300.jpg/450px-YB49-2_300.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4a/YB49-2_300.jpg/600px-YB49-2_300.jpg 2x" data-file-width="1468" data-file-height="1166" /></a></span> <div class="ib-aircraft-caption">YB-49</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/Strategic_bomber" title="Strategic bomber">Strategic bomber</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/Northrop_Corporation" title="Northrop Corporation">Northrop Corporation</a></td></tr><tr><th scope="row" class="infobox-label">Designer</th><td class="infobox-data"><div> <a href="/wiki/Jack_Northrop" title="Jack Northrop">Jack Northrop</a></div></td></tr><tr><th scope="row" class="infobox-label">Status</th><td class="infobox-data">Prototype only</td></tr><tr><th scope="row" class="infobox-label">Primary user</th><td class="infobox-data"><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">3 converted from <a href="/wiki/Northrop_YB-35" title="Northrop YB-35">YB-35</a><br />two YB-49 <br />one YRB-49A</td></tr><tr><th colspan="2" class="infobox-header">History</th></tr><tr><th scope="row" class="infobox-label">First flight</th><td class="infobox-data">21 October 1947</td></tr><tr><th scope="row" class="infobox-label">Developed from</th><td class="infobox-data"><a href="/wiki/Northrop_YB-35" title="Northrop YB-35">Northrop YB-35</a></td></tr></tbody></table> <p>The <b>Northrop YB-49</b> was an American prototype jet-powered <a href="/wiki/Heavy_bomber" title="Heavy bomber">heavy bomber</a> developed by <a href="/wiki/Northrop_Corporation" title="Northrop Corporation">Northrop Corporation</a> shortly after <a href="/wiki/World_War_II" title="World War II">World War II</a> for service with the <a href="/wiki/United_States_Air_Force" title="United States Air Force">United States Air Force</a>.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> The YB-49 featured a <a href="/wiki/Flying_wing" title="Flying wing">flying wing</a> design and was a <a href="/wiki/Turbojet" title="Turbojet">turbojet</a>-powered development of the earlier, piston-engined <a href="/wiki/Northrop_YB-35" title="Northrop YB-35">Northrop XB-35 and YB-35</a>. The two YB-49s built were both converted YB-35 test aircraft. </p><p>The YB-49 never entered production, being passed over in favor of the more conventional <a href="/wiki/Convair_B-36" class="mw-redirect" title="Convair B-36">Convair B-36</a> piston-driven design. Design work performed in the development of the YB-35 and YB-49 nonetheless proved to be valuable to Northrop decades later in the eventual development of the <a href="/wiki/Northrop_Grumman_B-2_Spirit" class="mw-redirect" title="Northrop Grumman B-2 Spirit">B-2</a> stealth bomber, which entered service in the early 1990s. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Design_and_development">Design and development</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Northrop_YB-49&action=edit&section=1" title="Edit section: Design and development"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1251242444">.mw-parser-output .ambox{border:1px solid #a2a9b1;border-left:10px solid #36c;background-color:#fbfbfb;box-sizing:border-box}.mw-parser-output .ambox+link+.ambox,.mw-parser-output .ambox+link+style+.ambox,.mw-parser-output .ambox+link+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+style+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+link+.ambox{margin-top:-1px}html body.mediawiki .mw-parser-output .ambox.mbox-small-left{margin:4px 1em 4px 0;overflow:hidden;width:238px;border-collapse:collapse;font-size:88%;line-height:1.25em}.mw-parser-output .ambox-speedy{border-left:10px solid #b32424;background-color:#fee7e6}.mw-parser-output .ambox-delete{border-left:10px solid #b32424}.mw-parser-output .ambox-content{border-left:10px solid #f28500}.mw-parser-output .ambox-style{border-left:10px solid #fc3}.mw-parser-output .ambox-move{border-left:10px solid #9932cc}.mw-parser-output .ambox-protection{border-left:10px solid #a2a9b1}.mw-parser-output .ambox .mbox-text{border:none;padding:0.25em 0.5em;width:100%}.mw-parser-output .ambox .mbox-image{border:none;padding:2px 0 2px 0.5em;text-align:center}.mw-parser-output .ambox .mbox-imageright{border:none;padding:2px 0.5em 2px 0;text-align:center}.mw-parser-output .ambox .mbox-empty-cell{border:none;padding:0;width:1px}.mw-parser-output .ambox .mbox-image-div{width:52px}@media(min-width:720px){.mw-parser-output .ambox{margin:0 10%}}@media print{body.ns-0 .mw-parser-output .ambox{display:none!important}}</style><table class="box-More_citations_needed_section plainlinks metadata ambox ambox-content ambox-Refimprove" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><a href="/wiki/File:Question_book-new.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/50px-Question_book-new.svg.png" decoding="async" width="50" height="39" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/75px-Question_book-new.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/100px-Question_book-new.svg.png 2x" data-file-width="512" data-file-height="399" /></a></span></div></td><td class="mbox-text"><div class="mbox-text-span">This section <b>needs additional citations for <a href="/wiki/Wikipedia:Verifiability" title="Wikipedia:Verifiability">verification</a></b>.<span class="hide-when-compact"> Please help <a href="/wiki/Special:EditPage/Northrop_YB-49" title="Special:EditPage/Northrop YB-49">improve this article</a> by <a href="/wiki/Help:Referencing_for_beginners" title="Help:Referencing for beginners">adding citations to reliable sources</a> in this section. Unsourced material may be challenged and removed.</span> <span class="date-container"><i>(<span class="date">December 2022</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:YB49-6_300.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8f/YB49-6_300.jpg/220px-YB49-6_300.jpg" decoding="async" width="220" height="174" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8f/YB49-6_300.jpg/330px-YB49-6_300.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8f/YB49-6_300.jpg/440px-YB49-6_300.jpg 2x" data-file-width="2852" data-file-height="2251" /></a><figcaption>YB-49 takes to the air for the first time.</figcaption></figure> <p>With the XB-35 program seriously behind schedule by 1944, and the end of piston-engined combat aircraft in sight, the production contract for this propeller-driven type was cancelled in May of that year. Nevertheless, the Flying Wing design was still sufficiently interesting to the Air Force that work was continued on testing a single YB-35A production aircraft.<sup id="cite_ref-pattillo_p185_2-0" class="reference"><a href="#cite_note-pattillo_p185-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p><p>Among the aircraft later completed were two airframes that the Air Force ordered be fitted with jet propulsion and designated as YB-49s.<sup id="cite_ref-pattillo_p185_2-1" class="reference"><a href="#cite_note-pattillo_p185-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> The first of these new YB-49 jet-powered aircraft flew on 22 October 1947 (from Northrop airfield in Hawthorne, CA) and immediately proved more promising than its piston engined counterpart. The YB-49 set an unofficial endurance record of staying continually above 40,000 ft (12,200 m) for 6.5 hours.<sup id="cite_ref-COFwooldridge_3-0" class="reference"><a href="#cite_note-COFwooldridge-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p><p>The second YB-49 was lost when it crashed on June 5, 1948, killing its pilot, Major Daniel Forbes (for whom <a href="/wiki/Forbes_Air_Force_Base" class="mw-redirect" title="Forbes Air Force Base">Forbes Air Force Base</a> was named), co-pilot <a href="/wiki/Captain_(land)" class="mw-redirect" title="Captain (land)">Captain</a> <a href="/wiki/Glen_Edwards_(pilot)" title="Glen Edwards (pilot)">Glen Edwards</a> (for whom <a href="/wiki/Edwards_Air_Force_Base" title="Edwards Air Force Base">Edwards Air Force Base</a> is named), and three other crew members,<sup id="cite_ref-COFwooldridge_3-1" class="reference"><a href="#cite_note-COFwooldridge-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> one of whom, 1st Lieutenant Edward Lee Swindell, was a crew member on the <a href="/wiki/Boeing_B-29_Superfortress" title="Boeing B-29 Superfortress">Boeing B-29</a> that assisted <a href="/wiki/Chuck_Yeager" title="Chuck Yeager">Chuck Yeager</a> in breaking the sound barrier in the <a href="/wiki/Bell_X-1" title="Bell X-1">Bell X-1</a> aircraft. Their aircraft suffered structural failure, with both outer wing sections becoming detached from the center section. Speculation at the time was that the YB-49 was lost due to excessive pullout loads imposed on the heavy airframe when a scheduled flight test of the large bomber's <a href="/wiki/Stall_(flight)" class="mw-redirect" title="Stall (flight)">stall</a> recovery resulted in a sudden and dramatic high-speed, nose-over dive. The post-stall high-speed dive resulted from the clean, low-drag, all-wing design, which gave the YB-49 a rapid speed increase in any type of dive. Fellow YB-49 test pilot <a href="/wiki/Robert_Cardenas" title="Robert Cardenas">Robert Cardenas</a> later claimed that the YB-49 rotated backwards in stall, and that he warned Edwards about it. <a href="/wiki/Jack_Northrop" title="Jack Northrop">Jack Northrop</a> later countered that such a behavior was impossible for the all-wing design.<sup id="cite_ref-mm_4-0" class="reference"><a href="#cite_note-mm-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p><p>During flight tests in the 1940s, it was noticed that the aircraft had a small <a href="/wiki/Radar_cross-section" class="mw-redirect" title="Radar cross-section">radar cross-section</a>, due to its flying wing design. Decades later, this stealthy detail would prove crucial to the design of Northrop Grumman's advanced, all-wing <a href="/wiki/B-2_bomber" class="mw-redirect" title="B-2 bomber">B-2 bomber</a>.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </p><p>On 9 February 1949, the first YB-49 flew from <a href="/wiki/Edwards_Air_Force_Base" title="Edwards Air Force Base">Muroc Air Force Base</a> in <a href="/wiki/California" title="California">California</a> to <a href="/wiki/Andrews_Air_Force_Base" title="Andrews Air Force Base">Andrews Air Force Base</a> near <a href="/wiki/Washington,_D.C." title="Washington, D.C.">Washington, D.C.</a>, in 4 hours 25 minutes,<sup id="cite_ref-COFwooldridge_3-2" class="reference"><a href="#cite_note-COFwooldridge-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> after which <a href="/wiki/Harry_S._Truman" title="Harry S. Truman">President Truman</a> ordered a flyby of <a href="/wiki/Pennsylvania_Avenue_(Washington,_D.C.)" class="mw-redirect" title="Pennsylvania Avenue (Washington, D.C.)">Pennsylvania Avenue</a> at rooftop level.<sup id="cite_ref-mm_4-1" class="reference"><a href="#cite_note-mm-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> The return flight from Andrews was marred when four of the eight engines had to be shut down due to oil starvation. Inspection after a successful emergency landing at <a href="/wiki/Winslow_Airport" class="mw-redirect" title="Winslow Airport">Winslow Airport</a>, Arizona, revealed no oil had been replaced in these engines at Wright after the Muroc-to-Andrews leg,<sup id="cite_ref-COFwooldridge_3-3" class="reference"><a href="#cite_note-COFwooldridge-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> raising a suspicion of industrial sabotage.<sup id="cite_ref-pattillo_p185_2-2" class="reference"><a href="#cite_note-pattillo_p185-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p><p>The last operational YB-49 prototype was destroyed on 15 March 1950, during high-speed taxi trials at Muroc Field. The nose wheel began to encounter severe vibration problems and finally collapsed;<sup id="cite_ref-COFwooldridge_3-4" class="reference"><a href="#cite_note-COFwooldridge-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> the aircraft was completely destroyed in the ensuing fire. The taxi trials took place with the YB-49's fuel tanks full, an unusual testing procedure, fanning further speculation of industrial sabotage of the aircraft.<sup id="cite_ref-pattillo_p185_2-3" class="reference"><a href="#cite_note-pattillo_p185-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p><p>Bombing target tests showed a tendency of flying wings to "hunt" in <a href="/wiki/Aircraft_principal_axes" title="Aircraft principal axes">yaw</a> after turns and when flying in "disturbed" air, degrading bombing accuracy. It was thought that one of the new Honeywell <a href="/wiki/Autopilot" title="Autopilot">autopilots</a>, with yaw <a href="/wiki/Damping_ratio" class="mw-redirect" title="Damping ratio">damping</a>, would correct this flaw. Northrop chief test pilot on the YB-35 and YB-49 programs Max Stanley contends in the 1992 <a href="/wiki/Discovery_Channel" title="Discovery Channel">Discovery Channel</a> documentary "The Wing Will Fly", the adaptation of the autopilot in this dual function "damped out the directional oscillations to the degree where... I think you would say it met the (military) specifications." Brig. General Robert Cardenas also flew the YB-49 during many of its test flights, praising the aircraft for its marvelous performance, while also noting the YB-49 required a very long bomb run to damp directional oscillations. Many of these challenges would eventually be overcome when <a href="/wiki/Fly-by-wire" title="Fly-by-wire">fly-by-wire</a> systems were developed in the 1950s, which were first used in regular production for the <a href="/wiki/Convair_B-58_Hustler" title="Convair B-58 Hustler">Convair B-58 Hustler</a> and then when computer-generated artificial stability became available in the 1970s, culminating in the development of the all-wing <a href="/wiki/Northrop_Grumman_B-2_Spirit" class="mw-redirect" title="Northrop Grumman B-2 Spirit">Northrop Grumman B-2 Spirit Stealth Bomber</a>. </p><p>The conversion of the long-range XB-35 to jet power essentially cut the effective range of the aircraft in half, putting it in the medium-range bomber category with <a href="/wiki/Boeing" title="Boeing">Boeing</a>'s new swept-winged jet bomber the <a href="/wiki/Boeing_B-47_Stratojet" title="Boeing B-47 Stratojet">B-47 Stratojet</a>. The B-47 was optimized for high-altitude and high-speed flight and, in an era where speed and altitude were becoming increasingly important, the YB-49's thick airfoil could never be maximized for high-speed performance. In the same <i>Discovery Channel</i> documentary, former <a href="/wiki/Air_Force_Flight_Test_Center" class="mw-redirect" title="Air Force Flight Test Center">Air Force Flight Test Center</a> Historian Dr. James Young states his opinion that while political gamesmanship and back room dealing certainly played a role in the aircraft's demise, the Flying Wing program was ultimately cancelled for solid technological reasons. </p> <div class="mw-heading mw-heading2"><h2 id="Operational_history">Operational history</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Northrop_YB-49&action=edit&section=2" title="Edit section: Operational history"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In June 1948, the Air Force ordered the type into full production as the <i>RB-49A</i> reconnaissance aircraft (company designations <b>N-38</b> and <b>N-39</b><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>).<sup id="cite_ref-pattillo_p185_2-4" class="reference"><a href="#cite_note-pattillo_p185-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> It was powered by six jet engines, two of them externally mounted in under-wing pods, ruining the aircraft's sleek, aerodynamic lines, but extending its range by carrying additional fuel. The use of jet engines had resulted in considerably increased fuel consumption and decreased its range significantly below that of the rival Convair B-36.<sup id="cite_ref-pattillo_p185_2-5" class="reference"><a href="#cite_note-pattillo_p185-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> One YB-35 airframe (s/n 42-102369) was chosen as the prototype for the RB-49 and designated <i>YRB-49A</i>. </p><p>During early 1950, the remaining YB-35Bs airframes, which were being converted to YRB-49As, were ordered scrapped. Flight testing of the sole remaining YB-49 prototype ended 14 March 1950. On 15 March 1950, that program was canceled. Coincidentally, the sole remaining YB-49 prototype suffered a high-speed taxiing accident and, as previously noted, was totally destroyed in the ensuing fire. </p><p>Only two months later, all Flying Wing contracts were canceled abruptly without explanation by order of <a href="/wiki/Stuart_Symington" title="Stuart Symington">Stuart Symington</a>, <a href="/wiki/United_States_Secretary_of_the_Air_Force" title="United States Secretary of the Air Force">Secretary of the Air Force</a>. </p><p>All remaining Flying Wing bomber airframes, except for the sole YRB-49A reconnaissance version, were ordered chopped up by Symington, the materials smelted down using portable smelters brought to Northrop's facility, in plain sight of its employees. Jack Northrop retired from both the company he founded and aviation shortly after he saw his dream of a pure, all-wing aircraft destroyed.<sup id="cite_ref-pattillo_p186_8-0" class="reference"><a href="#cite_note-pattillo_p186-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> His son, John Northrop Jr., later recounted during an interview his father's devastation and lifelong suspicion that his Flying Wing project had been sabotaged by political influence and back room wheeling-and-dealing between Convair and the Air Force.<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> </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:YRB-49A_with_its_eight_engines_replaced_with_six.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/90/YRB-49A_with_its_eight_engines_replaced_with_six.jpg/220px-YRB-49A_with_its_eight_engines_replaced_with_six.jpg" decoding="async" width="220" height="129" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/90/YRB-49A_with_its_eight_engines_replaced_with_six.jpg/330px-YRB-49A_with_its_eight_engines_replaced_with_six.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/90/YRB-49A_with_its_eight_engines_replaced_with_six.jpg/440px-YRB-49A_with_its_eight_engines_replaced_with_six.jpg 2x" data-file-width="1800" data-file-height="1052" /></a><figcaption>Northrop YRB-49A with six engines, two of which are mounted externally</figcaption></figure> <p>The sole prototype reconnaissance platform, the YRB-49A, first flew on 4 May 1950. After only 13 flights, testing ended abruptly on 26 April 1951. It was then flown back to Northrop's headquarters from Edwards Air Force Base (formerly Muroc AAF) on what would be its last flight. There, this remaining flying wing sat abandoned at the edge of Northrop's Ontario airport for more than two years. It was finally ordered scrapped on 1 December 1953.<sup id="cite_ref-Fact_sheet_10-0" class="reference"><a href="#cite_note-Fact_sheet-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> </p><p>In a 1979 videotaped news interview, Jack Northrop broke his long silence and said publicly that all Flying Wing contracts had been canceled because Northrop Aircraft Corporation refused to merge with competitor <a href="/wiki/Convair" title="Convair">Convair</a> at Air Force Secretary Stuart Symington's strong suggestion, because, according to Jack Northrop, Convair's merger demands were "grossly unfair to Northrop."<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> Allegations of political influences in the cancellation of the Flying Wing were investigated by the House Armed Services Committee, where Symington publicly denied exerting pressure on Northrop to merge.<sup id="cite_ref-pattillo_p153_12-0" class="reference"><a href="#cite_note-pattillo_p153-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> </p><p>Northrop's Flying Wing program may have been terminated due to its technical difficulties and the program being behind schedule and over budget. Another possible contributing factor to the cancellation may have been Northrop spreading its small engineering staff too widely in other experimental programs. While the competing propeller-driven <a href="/wiki/Convair_B-36" class="mw-redirect" title="Convair B-36">Convair B-36 "Peacemaker"</a> was an obsolete World War II-era design by this time, and had been having just as many or even more development problems, the Air Force seemed to have greater confidence that its more conventional design and "teething" problems could be overcome, when compared to those of the more radical Flying Wing. While the YB-49 had well-documented performance and design issues, the B-36 program needed more development money.<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> When the YB-49 jet bomber was canceled, Northrop was awarded a much smaller, lower profile production contract for its straight-winged <a href="/wiki/Northrop_F-89_Scorpion" title="Northrop F-89 Scorpion">F-89 Scorpion</a> fighter as compensation for the canceled Flying Wing.<sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> </p><p>The YB-49 and its modern counterpart, the <a href="/wiki/Northrop_Grumman_B-2_Spirit" class="mw-redirect" title="Northrop Grumman B-2 Spirit">B-2 Spirit</a>, both built either by Northrop or Northrop Grumman, have the same wingspan: 172.0 ft (52.4 m). Flight test data collected from the original YB-49 test flights were used in the development of the B-2 bomber.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (February 2022)">citation needed</span></a></i>]</sup> Shortly before his death in February 1981, Jack Northrop learned from the Northrop Corporation of the company's flying wing bid for the future B-2; he remarked: "I know why God has kept me alive for the past 25 years."<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> The new bomber would be publicly displayed for the first time in 1988.<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> <div class="mw-heading mw-heading2"><h2 id="Notable_appearances_in_media">Notable appearances in media</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Northrop_YB-49&action=edit&section=3" title="Edit section: Notable appearances in media"><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/Aircraft_in_fiction#Northrop_YB-49" title="Aircraft in fiction">Aircraft in fiction § Northrop YB-49</a></div> <p><a href="/wiki/Paramount_Pictures" title="Paramount Pictures">Paramount Pictures</a>' 1953 film, <i><a href="/wiki/The_War_of_the_Worlds_(1953_film)" title="The War of the Worlds (1953 film)">The War of the Worlds</a></i>, depicts a YB-49 dropping an <a href="/wiki/Atomic_bomb" class="mw-redirect" title="Atomic bomb">atomic bomb</a> on the invading <a href="/wiki/Martian" class="mw-redirect" title="Martian">Martians</a>. The <a href="/wiki/Feature_film" title="Feature film">feature film</a>, produced by <a href="/wiki/George_Pal" title="George Pal">George Pal</a> and directed by <a href="/wiki/Byron_Haskin" title="Byron Haskin">Byron Haskin</a>, incorporates Northrop color footage of a YB-49 test flight, originally used in Paramount's <i><a href="/wiki/Popular_Science" title="Popular Science">Popular Science</a></i> theatrical shorts of the era.<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> </p> <div class="mw-heading mw-heading2"><h2 id="Specifications_(YB-49)"><span id="Specifications_.28YB-49.29"></span>Specifications (YB-49)</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Northrop_YB-49&action=edit&section=4" title="Edit section: Specifications (YB-49)"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1273380762/mw-parser-output/.tmulti">.mw-parser-output .tmulti .multiimageinner{display:flex;flex-direction:column}.mw-parser-output .tmulti .trow{display:flex;flex-direction:row;clear:left;flex-wrap:wrap;width:100%;box-sizing:border-box}.mw-parser-output .tmulti .tsingle{margin:1px;float:left}.mw-parser-output .tmulti .theader{clear:both;font-weight:bold;text-align:center;align-self:center;background-color:transparent;width:100%}.mw-parser-output .tmulti .thumbcaption{background-color:transparent}.mw-parser-output .tmulti .text-align-left{text-align:left}.mw-parser-output .tmulti .text-align-right{text-align:right}.mw-parser-output .tmulti .text-align-center{text-align:center}@media all and (max-width:720px){.mw-parser-output .tmulti .thumbinner{width:100%!important;box-sizing:border-box;max-width:none!important;align-items:center}.mw-parser-output .tmulti .trow{justify-content:center}.mw-parser-output .tmulti .tsingle{float:none!important;max-width:100%!important;box-sizing:border-box;text-align:center}.mw-parser-output .tmulti .tsingle .thumbcaption{text-align:left}.mw-parser-output .tmulti .trow>.thumbcaption{text-align:center}}@media screen{html.skin-theme-clientpref-night .mw-parser-output .tmulti .multiimageinner span:not(.skin-invert-image):not(.skin-invert):not(.bg-transparent) img{background-color:white}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .tmulti .multiimageinner span:not(.skin-invert-image):not(.skin-invert):not(.bg-transparent) img{background-color:white}}</style><div class="thumb tmulti tright"><div class="thumbinner multiimageinner" style="width:492px;max-width:492px"><div class="trow"><div class="tsingle" style="width:197px;max-width:197px"><div class="thumbimage" style="height:215px;overflow:hidden"><span typeof="mw:File"><a href="/wiki/File:Northrop_YB-49_3-view_line_drawing.png" class="mw-file-description"><img alt="3-view line drawing of the Northrop YB-49" src="//upload.wikimedia.org/wikipedia/commons/thumb/3/36/Northrop_YB-49_3-view_line_drawing.png/195px-Northrop_YB-49_3-view_line_drawing.png" decoding="async" width="195" height="215" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/36/Northrop_YB-49_3-view_line_drawing.png/293px-Northrop_YB-49_3-view_line_drawing.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/36/Northrop_YB-49_3-view_line_drawing.png/390px-Northrop_YB-49_3-view_line_drawing.png 2x" data-file-width="1992" data-file-height="2194" /></a></span></div><div class="thumbcaption">3-view line drawing of the Northrop YB-49</div></div><div class="tsingle" style="width:291px;max-width:291px"><div class="thumbimage" style="height:215px;overflow:hidden"><span typeof="mw:File"><a href="/wiki/File:Northrop_YRB-49A_3-view_line_drawing.png" class="mw-file-description"><img alt="3-view line drawing of the Northrop YRB-49A" src="//upload.wikimedia.org/wikipedia/commons/thumb/3/3a/Northrop_YRB-49A_3-view_line_drawing.png/289px-Northrop_YRB-49A_3-view_line_drawing.png" decoding="async" width="289" height="216" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/3a/Northrop_YRB-49A_3-view_line_drawing.png/434px-Northrop_YRB-49A_3-view_line_drawing.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/3a/Northrop_YRB-49A_3-view_line_drawing.png/578px-Northrop_YRB-49A_3-view_line_drawing.png 2x" data-file-width="2526" data-file-height="1885" /></a></span></div><div class="thumbcaption">3-view line drawing of the Northrop YRB-49A</div></div></div></div></div> <figure class="mw-halign-right" typeof="mw:File"><a href="/wiki/File:Northrop_YB-35B_cross_section_drawing.png" class="mw-file-description" title="cross section drawing of the Northrop YB-35B"><img alt="cross section drawing of the Northrop YB-35B" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4e/Northrop_YB-35B_cross_section_drawing.png/400px-Northrop_YB-35B_cross_section_drawing.png" decoding="async" width="400" height="74" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4e/Northrop_YB-35B_cross_section_drawing.png/600px-Northrop_YB-35B_cross_section_drawing.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4e/Northrop_YB-35B_cross_section_drawing.png/800px-Northrop_YB-35B_cross_section_drawing.png 2x" data-file-width="2526" data-file-height="465" /></a><figcaption>cross section drawing of the Northrop YB-35B</figcaption></figure> <p style="font-size: 90%; margin:0;"><i>Data from</i> <i>National Museum of the United States Air Force</i>,<sup id="cite_ref-Fact_sheet_10-1" class="reference"><a href="#cite_note-Fact_sheet-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> and <i>U.S. Standard Aircraft Characteristics</i><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><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><span style="font-size:120%"><b>General characteristics</b></span> </p><ul><li><b>Crew:</b> 6</li> <li><b>Length:</b> 53 ft 1 in (16.18 m)</li> <li><b>Wingspan:</b> 172 ft 0 in (52.43 m)</li> <li><b>Height:</b> 15 ft 2 in (4.62 m)</li> <li><b>Wing area:</b> 4,000 sq ft (370 m<sup>2</sup>)</li> <li><b><a href="/wiki/Aspect_ratio_(aeronautics)" title="Aspect ratio (aeronautics)">Aspect ratio</a>:</b> 7.2</li> <li><b><a href="/wiki/Airfoil" title="Airfoil">Airfoil</a>:</b> <b>root:</b> <a href="/wiki/NACA_airfoil" title="NACA airfoil">NACA 65<sub>3</sub>-019</a>; <b>tip:</b> <a href="/wiki/NACA_airfoil" title="NACA airfoil">NACA 65<sub>3</sub>-018</a></li> <li><b>Empty weight:</b> 88,442 lb (40,117 kg)</li> <li><b>Gross weight:</b> 133,569 lb (60,586 kg)</li> <li><b>Max takeoff weight:</b> 193,938 lb (87,969 kg)</li> <li><b>Powerplant:</b> 8 × <a href="/wiki/Allison_J35-A-15" class="mw-redirect" title="Allison J35-A-15">Allison J35-A-15</a> <a href="/wiki/Turbojet" title="Turbojet">turbojet</a> engines, 4,000 lbf (18 kN) thrust each <br /></li></ul> <dl><dd><dl><dd><dl><dd><dl><dd>(6 × 5,000 lbf (22 kN) <a href="/wiki/Allison_J35-A-19" class="mw-redirect" title="Allison J35-A-19">Allison J35-A-19</a> engines on YRB-49)</dd></dl></dd></dl></dd></dl></dd></dl> <p><span style="font-size:120%"><b>Performance</b></span> </p> <ul><li><b>Maximum speed:</b> 493 mph (793 km/h, 428 kn)</li> <li><b>Cruise speed:</b> 365 mph (587 km/h, 317 kn)</li> <li><b>Combat range:</b> 4,000 mi (6,400 km, 3,500 nmi) Other sources say 2,806 <sup id="cite_ref-auto_21-0" class="reference"><a href="#cite_note-auto-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup> with 10,000 lb (4,536 kg) bombload, 365 Knots in 8:27 hours with 10,000 lbs of bombs.</li> <li><b>Service ceiling:</b> 45,700 ft (13,900 m)</li> <li><b>Rate of climb:</b> 3,785 ft/min (19.23 m/s)</li> <li><b>Wing loading:</b> 33 lb/sq ft (160 kg/m<sup>2</sup>)</li> <li><b><a href="/wiki/Thrust-to-weight_ratio" title="Thrust-to-weight ratio">Thrust/weight</a>:</b> 0.23<br /></li> <li><b>Take-off run:</b> 4850 ft<sup id="cite_ref-auto_21-1" class="reference"><a href="#cite_note-auto-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup></li> <li><b>Take-off distance to 50 ft (15 m): </b> 5850 ft <sup id="cite_ref-auto_21-2" class="reference"><a href="#cite_note-auto-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup></li></ul> <p><span style="font-size:120%"><b>Armament</b></span><br /> </p> <ul><li><b>Guns:</b> 4 × .50 in (12.7 mm) <a href="/wiki/Machine_gun" title="Machine gun">machine guns</a> (to be mounted in rotating "stinger" tail cone on all production aircraft)</li> <li><b>Bombs:</b> 16,000 lb (7,260 kg) of ordnance</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=Northrop_YB-49&action=edit&section=5" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1266661725">.mw-parser-output .portalbox{padding:0;margin:0.5em 0;display:table;box-sizing:border-box;max-width:175px;list-style:none}.mw-parser-output .portalborder{border:1px solid var(--border-color-base,#a2a9b1);padding:0.1em;background:var(--background-color-neutral-subtle,#f8f9fa)}.mw-parser-output .portalbox-entry{display:table-row;font-size:85%;line-height:110%;height:1.9em;font-style:italic;font-weight:bold}.mw-parser-output .portalbox-image{display:table-cell;padding:0.2em;vertical-align:middle;text-align:center}.mw-parser-output .portalbox-link{display:table-cell;padding:0.2em 0.2em 0.2em 0.3em;vertical-align:middle}@media(min-width:720px){.mw-parser-output .portalleft{margin:0.5em 1em 0.5em 0}.mw-parser-output .portalright{clear:right;float:right;margin:0.5em 0 0.5em 1em}}</style><ul role="navigation" aria-label="Portals" class="noprint portalbox portalborder portalright"> <li class="portalbox-entry"><span class="portalbox-image"><span class="noviewer" typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/6/68/Aviacionavion.png/28px-Aviacionavion.png" decoding="async" width="28" height="28" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/68/Aviacionavion.png/42px-Aviacionavion.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/68/Aviacionavion.png/56px-Aviacionavion.png 2x" data-file-width="1600" data-file-height="1600" /></span></span></span><span class="portalbox-link"><a href="/wiki/Portal:Aviation" title="Portal:Aviation">Aviation portal</a></span></li></ul> <ul><li><a href="/wiki/Northrop_Grumman_B-2_Spirit" class="mw-redirect" title="Northrop Grumman B-2 Spirit">Northrop Grumman B-2 Spirit</a></li> <li><a href="/wiki/Northrop_Grumman_B-21_Raider" title="Northrop Grumman B-21 Raider">Northrop Grumman B-21 Raider</a></li></ul> <p><b>Related development</b> </p> <ul><li><a href="/wiki/Northrop_N-1" title="Northrop N-1">Northrop N-1</a></li> <li><a href="/wiki/Northrop_N-1M" title="Northrop N-1M">Northrop N-1M</a></li> <li><a href="/wiki/Northrop_N-9M" title="Northrop N-9M">Northrop N-9M</a></li> <li><a href="/wiki/Northrop_YB-35" title="Northrop YB-35">Northrop YB-35</a></li></ul> <p><b>Aircraft of comparable role, configuration, and era</b> </p> <ul><li><a href="/wiki/Horten_Ho_229" title="Horten Ho 229">Horten Ho 229</a></li> <li><a href="/wiki/Horten_H.XVIII" title="Horten H.XVIII">Horten H.XVIII</a></li></ul> <p> <b>Related lists</b> </p> <ul><li><a href="/wiki/List_of_bomber_aircraft" title="List of bomber aircraft">List of bomber aircraft</a></li> <li><a href="/wiki/List_of_flying_wings" title="List of flying wings">List of flying wings</a></li> <li><a href="/wiki/List_of_military_aircraft_of_the_United_States" class="mw-redirect" title="List of military aircraft of the United States">List of military aircraft 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=Northrop_YB-49&action=edit&section=6" 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=Northrop_YB-49&action=edit&section=7" 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 mw-references-columns"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text">FIREPOWER: THE WEAPONS THE PROFESSIONALS USE - AND HOW. X-PLANES OF THE 1940s & 1950s, #58 Orbis Publishing 1990</span> </li> <li id="cite_note-pattillo_p185-2"><span class="mw-cite-backlink">^ <a href="#cite_ref-pattillo_p185_2-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-pattillo_p185_2-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-pattillo_p185_2-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-pattillo_p185_2-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-pattillo_p185_2-4"><sup><i><b>e</b></i></sup></a> <a href="#cite_ref-pattillo_p185_2-5"><sup><i><b>f</b></i></sup></a></span> <span class="reference-text">Pattillo 2001, p. 185.</span> </li> <li id="cite_note-COFwooldridge-3"><span class="mw-cite-backlink">^ <a href="#cite_ref-COFwooldridge_3-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-COFwooldridge_3-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-COFwooldridge_3-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-COFwooldridge_3-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-COFwooldridge_3-4"><sup><i><b>e</b></i></sup></a></span> <span class="reference-text">Wooldridge, E.T. <a rel="nofollow" class="external text" href="http://www.century-of-flight.net/Aviation%20history/flying%20wings/Northrop%20bombers.htm">"The Northrop bombers."</a> <i>Century of Flight,</i> 2003. Retrieved: 22 October 2010.</span> </li> <li id="cite_note-mm-4"><span class="mw-cite-backlink">^ <a href="#cite_ref-mm_4-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-mm_4-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text">"<a href="/wiki/List_of_Modern_Marvels_episodes#Season_10_(2004)" title="List of Modern Marvels episodes">Modern Marvels: Extreme Aircraft s11-e33</a>", 21-26min. <i><a href="/wiki/History_(U.S._TV_channel)" class="mw-redirect" title="History (U.S. TV channel)">History Channel</a></i>, 25 August 2004. Retrieved: 25 August 2012.</span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></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 class="citation web cs1"><a rel="nofollow" class="external text" href="https://fas.org/nuke/guide/usa/bomber/b-49.htm">"B-49 - United States Nuclear Forces"</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=B-49+-+United+States+Nuclear+Forces&rft_id=https%3A%2F%2Ffas.org%2Fnuke%2Fguide%2Fusa%2Fbomber%2Fb-49.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3ANorthrop+YB-49" class="Z3988"></span></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</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://books.google.com/books?id=NUzwukoJzGIC&q=YB-49+radar&pg=PA76">"Popular Science"</a>. September 1986.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Popular+Science&rft.date=1986-09&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DNUzwukoJzGIC%26q%3DYB-49%2Bradar%26pg%3DPA76&rfr_id=info%3Asid%2Fen.wikipedia.org%3ANorthrop+YB-49" class="Z3988"></span></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">Chong, Tony, 2016. Flying Wings & Radical Things: Northrop’s Secret Aerospace Projects & Concepts 1939-1994. Forest Lake, Minnesota: Specialty Press.</span> </li> <li id="cite_note-pattillo_p186-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-pattillo_p186_8-0">^</a></b></span> <span class="reference-text">Pattillo 2001, p. 186.</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">Honey, John. "The Wing Will Fly." Broadcast on The Discovery Channel: 1991.</span> </li> <li id="cite_note-Fact_sheet-10"><span class="mw-cite-backlink">^ <a href="#cite_ref-Fact_sheet_10-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Fact_sheet_10-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20150610221559/http://www.nationalmuseum.af.mil/factsheets/factsheet.asp?id=2674">"Fact sheet: Northrop YRB-49A."</a> <i>National Museum of the United States Air Force.</i> Retrieved: 29 October 2010.</span> </li> <li id="cite_note-11"><span class="mw-cite-backlink"><b><a href="#cite_ref-11">^</a></b></span> <span class="reference-text">Fitzsimons 1978, p. 2282.</span> </li> <li id="cite_note-pattillo_p153-12"><span class="mw-cite-backlink"><b><a href="#cite_ref-pattillo_p153_12-0">^</a></b></span> <span class="reference-text">Pattillo 2001, p. 153.</span> </li> <li id="cite_note-13"><span class="mw-cite-backlink"><b><a href="#cite_ref-13">^</a></b></span> <span class="reference-text">Donald 1997, p. 709.</span> </li> <li id="cite_note-14"><span class="mw-cite-backlink"><b><a href="#cite_ref-14">^</a></b></span> <span class="reference-text">Donald 1997, p. 708.</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">Withington and Davey 2006, p. 12.</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">Withington and Davey 2006, p. 13.</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">Howe, Tom. <a rel="nofollow" class="external text" href="http://www.cedmagic.com/featured/war-worlds/flying-wing.html">"Northrop YB-49 Flying Wing."</a> <i>cedmagic.com.</i> Retrieved: 25 August 2012.</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"><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.alternatewars.com/SAC/YB-49_Flying_Wing_SAC_-_20_December_1949.pdf">"Standard Aircraft Characteristics: YB-49 Flying Wing"</a> <span class="cs1-format">(PDF)</span>. US Air Force. 20 December 1949<span class="reference-accessdate">. Retrieved <span class="nowrap">2 November</span> 2016</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Standard+Aircraft+Characteristics%3A+YB-49+Flying+Wing&rft.pub=US+Air+Force&rft.date=1949-12-20&rft_id=http%3A%2F%2Fwww.alternatewars.com%2FSAC%2FYB-49_Flying_Wing_SAC_-_20_December_1949.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3ANorthrop+YB-49" class="Z3988"></span></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://www.dept.aoe.vt.edu/~mason/Mason_f/NorthropYB-49.pdf">Northrop YB-49 Flying Wing Bomber</a> page 14</span> </li> <li id="cite_note-20"><span class="mw-cite-backlink"><b><a href="#cite_ref-20">^</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://www.nationalmuseum.af.mil/Visit/Museum-Exhibits/Fact-Sheets/Display/Article/858861/northrop-yb-49/">"Northrop YB-49"</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Northrop+YB-49&rft_id=https%3A%2F%2Fwww.nationalmuseum.af.mil%2FVisit%2FMuseum-Exhibits%2FFact-Sheets%2FDisplay%2FArticle%2F858861%2Fnorthrop-yb-49%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ANorthrop+YB-49" class="Z3988"></span></span> </li> <li id="cite_note-auto-21"><span class="mw-cite-backlink">^ <a href="#cite_ref-auto_21-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-auto_21-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-auto_21-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text">Post World War II Bombers by Marcelle Size Knaack, page 545</span> </li> </ol></div></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=Northrop_YB-49&action=edit&section=8" title="Edit section: Bibliography"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>Coleman, Ted. <i>Jack Northrop and the Flying Wing: The Real Story Behind the Stealth Bomber</i>. New York: Paragon House, 1988. <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/1-55778-079-X" title="Special:BookSources/1-55778-079-X">1-55778-079-X</a>.</li> <li>Donald, David, editor. "Northrop Flying Wings". <i>Encyclopedia of World Aircraft</i>. Etobicoke, Ontario: Prospero Books, 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/1-85605-375-X" title="Special:BookSources/1-85605-375-X">1-85605-375-X</a>.</li> <li>Fitzsimons, Bernard, ed. "Scorpion, Northrop F-89." <i>Illustrated Encyclopedia of 20th Century Weapons and Warfare</i>, Volume 21. London: Phoebus, 1978. <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/0-8393-6175-0" title="Special:BookSources/0-8393-6175-0">0-8393-6175-0</a>.</li> <li>Maloney, Edward T. <i>Northrop Flying Wings</i>. Corona del Mar, California: World War II Publications, 1988. <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/0-915464-00-4" title="Special:BookSources/0-915464-00-4">0-915464-00-4</a>.</li> <li>O'Leary, Michael. "Wings of Northrop, Conclusion". <i>Air Classics</i>, Volume 44, Number 3, March 2008, Challenge Publications, Inc. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://www.worldcat.org/search?fq=x0:jrnl&q=n2:0002-2241">0002-2241</a>. (Heavily illustrated, authoritative YB-49 article)</li> <li>Pape, Garry and John Campbell. <i>Northrop Flying Wings: A History of Jack Northrop's Visionary Aircraft</i>. Atglen, Pennsylvania: Schiffer Publishing, Ltd., 1995. <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/0-88740-689-0" title="Special:BookSources/0-88740-689-0">0-88740-689-0</a>.</li> <li>Pattillo, Donald M. <a rel="nofollow" class="external text" href="https://books.google.com/books?id=shwtKbTbEuEC">"Pushing the Envelope: The American Aircraft Industry".</a> Ann Arbor, Michigan: University of Michigan Press, 2001. <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/0-472-08671-5" title="Special:BookSources/0-472-08671-5">0-472-08671-5</a>.</li> <li>Pelletier, Alain J. "Towards the Ideal Aircraft: The Life and Times of the Flying Wing, Part Two". <i><a href="/wiki/Air_Enthusiast" title="Air Enthusiast">Air Enthusiast</a></i>, No. 65, September–October 1996, pp. 8–19. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://www.worldcat.org/search?fq=x0:jrnl&q=n2:0143-5450">0143-5450</a>.</li> <li>Winchester, Jim. "Northrop XB-35/YB-49" <i>Concept Aircraft: Prototypes, X-Planes and Experimental Aircraft</i>. Kent, UK: Grange Books plc., 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/978-1-84013-809-2" title="Special:BookSources/978-1-84013-809-2">978-1-84013-809-2</a>.</li> <li>Withington, Thomas and Chris Davey. <a rel="nofollow" class="external text" href="https://books.google.com/books?id=lkIyKlIFKRYC"><i>B-2A Spirit Units in Combat</i>.</a> Oxford, UK: Osprey Publishing, 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/1-84176-993-2" title="Special:BookSources/1-84176-993-2">1-84176-993-2</a>.</li> <li>Wooldridge, E. T. <i>Winged Wonders: The Story of the Flying Wings</i>. Washington, D.C.: Smithsonian Institution Press, 1983. <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/0-87474-966-2" title="Special:BookSources/0-87474-966-2">0-87474-966-2</a>.</li></ul> <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=Northrop_YB-49&action=edit&section=9" 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 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to <a href="https://commons.wikimedia.org/wiki/Northrop_YB-49" class="extiw" title="commons:Northrop YB-49"><span style="font-style:italic; font-weight:bold;">Northrop YB-49</span></a>.</div></div> </div> <ul><li><a rel="nofollow" class="external text" href="https://www.youtube.com/watch?v=7Dfj3SeMI-s"><span class="plainlinks">"The Story of the Northrop YB- 49 Flying Wing - Restored Color - 1949"</span></a> on <a href="/wiki/YouTube_video_(identifier)" class="mw-redirect" title="YouTube video (identifier)">YouTube</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 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.navbox-image img{max-width:none!important}@media print{body.ns-0 .mw-parser-output .navbox{display:none!important}}</style></div><div role="navigation" class="navbox" aria-labelledby="Northrop_aircraft_and_aircraft_engines158" style="padding:3px"><table class="nowraplinks mw-collapsible mw-collapsed 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:Northrop_aircraft" title="Template:Northrop aircraft"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Northrop_aircraft" title="Template talk:Northrop aircraft"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Northrop_aircraft" title="Special:EditPage/Template:Northrop aircraft"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Northrop_aircraft_and_aircraft_engines158" style="font-size:114%;margin:0 4em"><a href="/wiki/Northrop_Corporation" title="Northrop Corporation">Northrop</a> aircraft and aircraft engines</div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Manufacturer<br /> designations</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" 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:8em">'Greek' series</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/Northrop_Alpha" title="Northrop Alpha">Alpha</a></li> <li><a href="/wiki/Northrop_Beta" title="Northrop Beta">Beta</a></li> <li><a href="/wiki/Northrop_Gamma" title="Northrop Gamma">Gamma</a></li> <li><a href="/wiki/Northrop_Delta" title="Northrop Delta">Delta</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:8em">'N' series</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"><i>Note: Northrop company designations include a wide variety of technologies. Only aircraft, aero engines, and missiles are linked here.</i> <ul><li><a href="/wiki/Northrop_N-1" title="Northrop N-1">N-1</a>/<a href="/wiki/Northrop_N-1M" title="Northrop N-1M">M</a></li> <li><a href="/wiki/Northrop_XP-56_Black_Bullet" title="Northrop XP-56 Black Bullet">N-2</a></li> <li><a href="/wiki/Northrop_N-3PB_Nomad" title="Northrop N-3PB Nomad">N-3</a></li> <li><a href="/w/index.php?title=Northrop_N-4&action=edit&redlink=1" class="new" title="Northrop N-4 (page does not exist)">N-4</a></li> <li><a href="/w/index.php?title=Northrop_N-5&action=edit&redlink=1" class="new" title="Northrop N-5 (page does not exist)">N-5</a></li> <li><a href="/w/index.php?title=Northrop_N-6&action=edit&redlink=1" class="new" title="Northrop N-6 (page does not exist)">N-6</a></li> <li><a href="/w/index.php?title=Northrop_N-7&action=edit&redlink=1" class="new" title="Northrop N-7 (page does not exist)">N-7</a></li> <li><a href="/wiki/Northrop_P-61_Black_Widow" title="Northrop P-61 Black Widow">N-8</a></li> <li><a href="/wiki/Northrop_YB-35" title="Northrop YB-35">N-9</a>/<a href="/wiki/Northrop_N-9M" title="Northrop N-9M">M</a></li> <li><a href="/wiki/Northrop-Hendy_XT37" title="Northrop-Hendy XT37">N-10</a></li> <li><a href="/wiki/Northrop_XP-79" title="Northrop XP-79">N-12</a></li> <li><a href="/wiki/Northrop_XP-79" title="Northrop XP-79">N-14</a></li> <li><a href="/w/index.php?title=Northrop_N-15&action=edit&redlink=1" class="new" title="Northrop N-15 (page does not exist)">N-15</a></li> <li><a href="/w/index.php?title=Northrop_JB-1&action=edit&redlink=1" class="new" title="Northrop JB-1 (page does not exist)">N-16</a></li> <li><a href="/w/index.php?title=Northrop_JB-1&action=edit&redlink=1" class="new" title="Northrop JB-1 (page does not exist)">N-18</a></li> <li><a href="/wiki/Northrop-Hendy_XT37" title="Northrop-Hendy XT37">N-19</a></li> <li><a href="/wiki/Northrop_P-61_Black_Widow" title="Northrop P-61 Black Widow">N-20</a></li> <li><a href="/wiki/Northrop_P-61_Black_Widow" title="Northrop P-61 Black Widow">N-21</a></li> <li><a href="/wiki/Northrop_YC-125_Raider" title="Northrop YC-125 Raider">N-23</a></li> <li><a href="/wiki/Northrop_F-89_Scorpion" title="Northrop F-89 Scorpion">N-24</a></li> <li><a href="/wiki/SM-62_Snark" title="SM-62 Snark">N-25A</a>/<a href="/wiki/SSM-A-5_Boojum" title="SSM-A-5 Boojum">B</a></li> <li><a href="/wiki/Northrop_X-4_Bantam" title="Northrop X-4 Bantam">N-26</a></li> <li><a href="/w/index.php?title=Northrop_N-29&action=edit&redlink=1" class="new" title="Northrop N-29 (page does not exist)">N-29</a></li> <li><a href="/w/index.php?title=Northrop_N-31&action=edit&redlink=1" class="new" title="Northrop N-31 (page does not exist)">N-31</a></li> <li><a href="/wiki/Northrop_YC-125_Raider" title="Northrop YC-125 Raider">N-32</a></li> <li><a href="/w/index.php?title=Northrop_N-34&action=edit&redlink=1" class="new" title="Northrop N-34 (page does not exist)">N-34</a></li> <li><a href="/wiki/Northrop_F-89_Scorpion" title="Northrop F-89 Scorpion">N-35</a></li> <li><a href="/wiki/Northrop_YC-125_Raider" title="Northrop YC-125 Raider">N-36</a></li> <li><a class="mw-selflink selflink">N-37</a></li> <li><a class="mw-selflink selflink">N-38</a></li> <li><a href="/wiki/Northrop_YB-35" title="Northrop YB-35">N-39</a></li> <li><a class="mw-selflink selflink">N-40</a></li> <li><a class="mw-selflink selflink">N-41</a></li> <li><a href="/wiki/Northrop_YB-35" title="Northrop YB-35">N-45</a></li> <li><a class="mw-selflink selflink">N-46</a></li> <li><a class="mw-selflink selflink">N-47</a></li> <li><a href="/wiki/Northrop_YB-35" title="Northrop YB-35">N-48</a></li> <li><a href="/wiki/Northrop_F-89_Scorpion" title="Northrop F-89 Scorpion">N-49</a></li> <li><a class="mw-selflink selflink">N-50</a></li> <li><a href="/wiki/Northrop_YB-35" title="Northrop YB-35">N-51</a></li> <li><a class="mw-selflink selflink">N-52</a></li> <li><a href="/wiki/Northrop_F-89_Scorpion" title="Northrop F-89 Scorpion">N-54</a></li> <li><a href="/w/index.php?title=Northrop_N-55&action=edit&redlink=1" class="new" title="Northrop N-55 (page does not exist)">N-55</a></li> <li><a href="/w/index.php?title=Northrop_N-59&action=edit&redlink=1" class="new" title="Northrop N-59 (page does not exist)">N-59</a></li> <li><a href="/w/index.php?title=Northrop_N-60&action=edit&redlink=1" class="new" title="Northrop N-60 (page does not exist)">N-60</a></li> <li><a href="/w/index.php?title=Northrop_N-63&action=edit&redlink=1" class="new" title="Northrop N-63 (page does not exist)">N-63</a></li> <li><a href="/w/index.php?title=Northrop_N-65&action=edit&redlink=1" class="new" title="Northrop N-65 (page does not exist)">N-65</a></li> <li><a href="/wiki/Northrop_F-89_Scorpion" title="Northrop F-89 Scorpion">N-67</a></li> <li><a href="/wiki/Northrop_F-89_Scorpion" title="Northrop F-89 Scorpion">N-68</a></li> <li><a href="/wiki/SM-62_Snark" title="SM-62 Snark">N-69</a></li> <li><a href="/wiki/Northrop_F-89_Scorpion" title="Northrop F-89 Scorpion">N-71</a></li> <li><a href="/wiki/SM-62_Snark" title="SM-62 Snark">N-72</a></li> <li><a href="/w/index.php?title=Northrop_N-73&action=edit&redlink=1" class="new" title="Northrop N-73 (page does not exist)">N-73</a></li> <li><a href="/wiki/Northrop_YC-125_Raider" title="Northrop YC-125 Raider">N-74</a></li> <li><a href="/wiki/Northrop_F-89_Scorpion" title="Northrop F-89 Scorpion">N-81</a></li> <li><a href="/wiki/Northrop_F-89_Scorpion" title="Northrop F-89 Scorpion">N-82</a></li> <li><a href="/wiki/Northrop_F-89_Scorpion" title="Northrop F-89 Scorpion">N-84</a></li> <li><a href="/wiki/Northrop_F-89_Scorpion" title="Northrop F-89 Scorpion">N-86</a></li> <li><a href="/wiki/Northrop_F-89_Scorpion" title="Northrop F-89 Scorpion">N-87</a></li> <li><a href="/w/index.php?title=Northrop_N-94&action=edit&redlink=1" class="new" title="Northrop N-94 (page does not exist)">N-94</a></li> <li><a href="/w/index.php?title=Northrop_N-96&action=edit&redlink=1" class="new" title="Northrop N-96 (page does not exist)">N-96</a></li> <li><a href="/wiki/Northrop_N-102_Fang" title="Northrop N-102 Fang">N-102</a></li> <li><a href="/w/index.php?title=Northrop_N-103&action=edit&redlink=1" class="new" title="Northrop N-103 (page does not exist)">N-103</a></li> <li><a href="/w/index.php?title=Armour_Research_Foundation_T-131&action=edit&redlink=1" class="new" title="Armour Research Foundation T-131 (page does not exist)">N-105</a></li> <li><a href="/wiki/Northrop_F-89_Scorpion" title="Northrop F-89 Scorpion">N-110</a></li> <li><a href="/wiki/SM-62_Snark" title="SM-62 Snark">N-111</a></li> <li><a href="/wiki/SM-62_Snark" title="SM-62 Snark">N-112</a></li> <li><a href="/wiki/Northrop_F-89_Scorpion" title="Northrop F-89 Scorpion">N-117</a></li> <li><a href="/wiki/SM-62_Snark" title="SM-62 Snark">N-124</a></li> <li><a href="/w/index.php?title=Northrop_N-132&action=edit&redlink=1" class="new" title="Northrop N-132 (page does not exist)">N-132</a></li> <li><a href="/w/index.php?title=Northrop_N-133&action=edit&redlink=1" class="new" title="Northrop N-133 (page does not exist)">N-133</a></li> <li><a href="/wiki/SM-62_Snark" title="SM-62 Snark">N-134</a></li> <li><a href="/w/index.php?title=Northrop_N-135&action=edit&redlink=1" class="new" title="Northrop N-135 (page does not exist)">N-135</a></li> <li><a href="/wiki/Northrop_F-89_Scorpion" title="Northrop F-89 Scorpion">N-138</a></li> <li><a href="/wiki/Northrop_F-89_Scorpion" title="Northrop F-89 Scorpion">N-141</a></li> <li><a href="/w/index.php?title=Northrop_N-144&action=edit&redlink=1" class="new" title="Northrop N-144 (page does not exist)">N-144</a></li> <li><a href="/w/index.php?title=Northrop_N-149&action=edit&redlink=1" class="new" title="Northrop N-149 (page does not exist)">N-149</a></li> <li><a href="/wiki/Dervish_(rocket)" title="Dervish (rocket)">N-150</a></li> <li><a href="/wiki/Northrop_AQM-35" title="Northrop AQM-35">N-151</a></li> <li><a href="/w/index.php?title=Northrop_N-155&action=edit&redlink=1" class="new" title="Northrop N-155 (page does not exist)">N-155</a></li> <li><a href="/wiki/Northrop_F-5" title="Northrop F-5">N-156</a></li> <li><a href="/w/index.php?title=Northrop_N-165&action=edit&redlink=1" class="new" title="Northrop N-165 (page does not exist)">N-165</a></li> <li><a href="/wiki/Northrop_N-204" title="Northrop N-204">N-204</a></li> <li><a href="/wiki/Northrop_T-38_Talon" title="Northrop T-38 Talon">N-205</a></li> <li><a href="/wiki/Northrop_X-21" title="Northrop X-21">N-250</a></li> <li><a href="/w/index.php?title=Northrop_N-251&action=edit&redlink=1" class="new" title="Northrop N-251 (page does not exist)">N-251</a></li> <li><a href="/wiki/Northrop_T-38_Talon" title="Northrop T-38 Talon">N-267</a></li> <li><a href="/w/index.php?title=Northrop_N-285&action=edit&redlink=1" class="new" title="Northrop N-285 (page does not exist)">N-285</a></li> <li><a href="/wiki/Northrop_YF-17" title="Northrop YF-17">N-300</a></li> <li><a href="/wiki/Northrop_F-5" title="Northrop F-5">N-301</a></li> <li><a href="/wiki/Northrop_F-5" title="Northrop F-5">N-302</a></li> <li><a href="/wiki/Northrop_F-5" title="Northrop F-5">N-303</a></li> <li><a href="/wiki/Northrop_F-5" title="Northrop F-5">N-304</a></li> <li><a href="/wiki/Northrop_F-5" title="Northrop F-5">N-305</a></li> <li><a href="/wiki/Northrop_F-5" title="Northrop F-5">N-306</a></li> <li><a href="/wiki/Northrop_F-5" title="Northrop F-5">N-307</a></li> <li><a href="/wiki/Northrop_F-5" title="Northrop F-5">N-311</a></li> <li><a href="/wiki/Northrop_YA-9" title="Northrop YA-9">N-320</a></li> <li><a href="/wiki/Northrop_YF-17" title="Northrop YF-17">N-321</a></li> <li><a href="/w/index.php?title=Northrop_P610&action=edit&redlink=1" class="new" title="Northrop P610 (page does not exist)">N-322</a></li> <li><a href="/wiki/AIDC_AT-3" title="AIDC AT-3">N-330</a></li> <li><a href="/w/index.php?title=Northrop_N-353&action=edit&redlink=1" class="new" title="Northrop N-353 (page does not exist)">N-353</a></li> <li><a href="/wiki/AGM-137_TSSAM" title="AGM-137 TSSAM">N-370</a></li> <li><a href="/w/index.php?title=Northrop_N-381&action=edit&redlink=1" class="new" title="Northrop N-381 (page does not exist)">N-381</a></li></ul></div></td></tr><tr><th scope="row" class="navbox-group" style="width:8em">'P' series</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <li><a href="/wiki/Northrop_YF-17" title="Northrop YF-17">P530</a></li> <li><a href="/wiki/Northrop_YF-17" title="Northrop YF-17">P600</a></li> <li><a href="/w/index.php?title=Northrop_P610&action=edit&redlink=1" class="new" title="Northrop P610 (page does not exist)">P610</a></li> <li><a href="/wiki/McDonnell_Douglas_F/A-18_Hornet" title="McDonnell Douglas F/A-18 Hornet">P630</a></li> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">By role</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" 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:8em">Attack</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/Northrop_YA-13" title="Northrop YA-13">YA-13</a></li> <li><a href="/wiki/Northrop_YA-13" title="Northrop YA-13">XA-16</a></li> <li><a href="/wiki/Northrop_A-17" title="Northrop A-17">A-17/Nomad</a></li> <li><a href="/wiki/Northrop_N-3PB_Nomad" title="Northrop N-3PB Nomad">N-3PB</a></li> <li><a href="/wiki/Northrop_YA-9" title="Northrop YA-9">YA-9</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:8em">Bombers</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/Northrop_YB-35" title="Northrop YB-35">YB-35</a></li> <li><a class="mw-selflink selflink">YB-49</a></li> <li><a href="/wiki/SM-62_Snark" title="SM-62 Snark">B-62</a></li> <li><a href="/wiki/Northrop_BT" title="Northrop BT">BT</a></li> <li><a href="/wiki/Northrop_YB-35" title="Northrop YB-35">B2T</a></li> <li><a href="/wiki/Northrop_B-2_Spirit" title="Northrop B-2 Spirit">B-2</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:8em">Drones</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/Northrop_AQM-35" title="Northrop AQM-35">Q-4</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:8em">Fighters</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/Northrop_XFT" title="Northrop XFT">3A</a></li> <li><a href="/wiki/Northrop_XP-56_Black_Bullet" title="Northrop XP-56 Black Bullet">XP-56</a></li> <li><a href="/wiki/Northrop_P-61_Black_Widow" title="Northrop P-61 Black Widow">P-61</a></li> <li><a href="/wiki/Northrop_XP-79" title="Northrop XP-79">XP-79</a></li> <li><a href="/wiki/Northrop_F-89_Scorpion" title="Northrop F-89 Scorpion">F-89</a></li> <li><a href="/wiki/Northrop_XFT" title="Northrop XFT">XFT</a></li> <li><a href="/wiki/Northrop_P-61_Black_Widow" title="Northrop P-61 Black Widow">F2T</a></li> <li><a href="/wiki/Northrop_F-5" title="Northrop F-5">F-5</a>/<a href="/wiki/Canadair_CF-5" title="Canadair CF-5">CF-5/CF-116</a></li> <li><a href="/wiki/Northrop_YF-17" title="Northrop YF-17">YF-17</a></li> <li><a href="/wiki/McDonnell_Douglas_F/A-18_Hornet" title="McDonnell Douglas F/A-18 Hornet">F-18L</a></li> <li><a href="/wiki/Northrop_F-20_Tigershark" title="Northrop F-20 Tigershark">F-20</a></li> <li><a href="/wiki/Northrop_YF-23" title="Northrop YF-23">YF-23</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:8em">Reconnaissance</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/Northrop_F-15_Reporter" title="Northrop F-15 Reporter">F-15</a></li> <li><a href="/wiki/Northrop_F-15_Reporter" title="Northrop F-15 Reporter">RF-61</a></li> <li><a href="/wiki/Northrop_F-5" title="Northrop F-5">RF-5</a></li> <li><a href="/w/index.php?title=Northrop_N-165&action=edit&redlink=1" class="new" title="Northrop N-165 (page does not exist)">N-165</a></li> <li><a href="/wiki/Northrop_N-204" title="Northrop N-204">N-204</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:8em">Trainers</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/Northrop_T-38_Talon" title="Northrop T-38 Talon">T-38</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:8em">Transports</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/Northrop_Alpha" title="Northrop Alpha">Alpha</a></li> <li><a href="/wiki/Northrop_Beta" title="Northrop Beta">Beta</a></li> <li><a href="/wiki/Northrop_Gamma" title="Northrop Gamma">Gamma</a></li> <li><a href="/wiki/Northrop_Delta" title="Northrop Delta">Delta</a></li> <li><a href="/wiki/Northrop_C-19_Alpha" title="Northrop C-19 Alpha">C-19</a></li> <li><a href="/wiki/Northrop_Gamma" title="Northrop Gamma">C-100</a></li> <li><a href="/wiki/Northrop_YC-125_Raider" title="Northrop YC-125 Raider">YC-125</a></li> <li><a href="/wiki/Northrop_Delta" title="Northrop Delta">RT</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:8em">Experimental</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/Northrop_N-1M" title="Northrop N-1M">N-1M</a></li> <li><a href="/wiki/Northrop_N-9M" title="Northrop N-9M">N-9M</a></li> <li><a href="/wiki/Northrop_JB-1_Bat" title="Northrop JB-1 Bat">JB-1</a></li> <li><a href="/wiki/Northrop_XP-79" title="Northrop XP-79">MX-324</a></li> <li><a href="/wiki/Northrop_XP-79" title="Northrop XP-79">MX-334</a></li> <li><a href="/wiki/Northrop_M2-F2" title="Northrop M2-F2">M2-F2</a></li> <li><a href="/wiki/Northrop_M2-F3" title="Northrop M2-F3">M2-F3</a></li> <li><a href="/wiki/Northrop_HL-10" title="Northrop HL-10">HL-10</a></li> <li><a href="/wiki/Northrop_Tacit_Blue" title="Northrop Tacit Blue">Tacit Blue</a></li> <li><a href="/wiki/Northrop_X-4_Bantam" title="Northrop X-4 Bantam">X-4</a></li> <li><a href="/wiki/Northrop_X-21" title="Northrop X-21">X-21</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Aircraft<br />engines</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/Northrop-Hendy_XT37" title="Northrop-Hendy XT37">XT37</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-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Northrop_Alpha" title="Northrop Alpha">Alpha</a></li> <li><a href="/wiki/Northrop_X-4_Bantam" title="Northrop X-4 Bantam">Bantam</a></li> <li><a href="/wiki/Northrop_Beta" title="Northrop Beta">Beta</a></li> <li><a href="/wiki/Northrop_XP-56_Black_Bullet" title="Northrop XP-56 Black Bullet">Black Bullet</a></li> <li><a href="/wiki/Northrop_P-61_Black_Widow" title="Northrop P-61 Black Widow">Black Widow</a></li> <li><a href="/wiki/SSM-A-5_Boojum" title="SSM-A-5 Boojum">Boojum</a></li> <li><a href="/wiki/Northrop_BQM-74_Chukar" title="Northrop BQM-74 Chukar">Chukar</a></li> <li><a href="/wiki/Northrop_Delta" title="Northrop Delta">Delta</a></li> <li><a href="/wiki/Dervish_(rocket)" title="Dervish (rocket)">Dervish</a></li> <li><a href="/wiki/Northrop_N-102_Fang" title="Northrop N-102 Fang">Fang</a></li> <li><a href="/wiki/Northrop_F-5" title="Northrop F-5">Freedom Fighter</a></li> <li><a href="/wiki/Northrop_Gamma" title="Northrop Gamma">Gamma</a></li> <li><a href="/wiki/McDonnell_Douglas_F/A-18_Hornet" title="McDonnell Douglas F/A-18 Hornet">Hornet</a></li> <li><a href="/wiki/Northrop_A-17" title="Northrop A-17">Nomad</a></li> <li><a href="/wiki/Northrop_YC-125_Raider" title="Northrop YC-125 Raider">Pioneer</a></li> <li><a href="/wiki/Northrop_YC-125_Raider" title="Northrop YC-125 Raider">Raider</a></li> <li><a href="/wiki/Northrop_F-15_Reporter" title="Northrop F-15 Reporter">Reporter</a></li> <li><a href="/wiki/Northrop_F-89_Scorpion" title="Northrop F-89 Scorpion">Scorpion</a></li> <li><a href="/wiki/SM-62_Snark" title="SM-62 Snark">Snark</a></li> <li><a href="/wiki/Northrop_B-2_Spirit" title="Northrop B-2 Spirit">Spirit</a></li> <li><a href="/wiki/Northrop_T-38_Talon" title="Northrop T-38 Talon">Talon</a></li> <li><a href="/wiki/Northrop_F-20_Tigershark" title="Northrop F-20 Tigershark">Tigershark</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div>See also: <a href="/wiki/TR-3_Black_Manta" class="mw-redirect" title="TR-3 Black Manta">TR-3</a></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="USAAS/USAAC/USAAF/USAF_bomber_designations,_Army/Air_Force_and_Tri-Service_systems432" 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_bomber_aircraft" title="Template:USAF bomber aircraft"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:USAF_bomber_aircraft" title="Template talk:USAF bomber aircraft"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:USAF_bomber_aircraft" title="Special:EditPage/Template:USAF bomber aircraft"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="USAAS/USAAC/USAAF/USAF_bomber_designations,_Army/Air_Force_and_Tri-Service_systems432" style="font-size:114%;margin:0 4em"><a href="/wiki/United_States_Army_Air_Service" title="United States Army Air Service">USAAS</a>/<a href="/wiki/United_States_Army_Air_Corps" title="United States Army Air Corps">USAAC</a>/<a href="/wiki/United_States_Army_Air_Forces" title="United States Army Air Forces">USAAF</a>/<a href="/wiki/United_States_Air_Force" title="United States Air Force">USAF</a> bomber 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%">Original sequences<br />(1924–1930)</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" 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:1%">Light bomber</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/Huff-Daland_LB-1" title="Huff-Daland LB-1">LB-1</a></li> <li><a href="/wiki/Fokker_F-10" title="Fokker F-10">LB-2</a></li> <li><a href="/wiki/Keystone_XLB-3" title="Keystone XLB-3">LB-3</a></li> <li><a href="/wiki/Martin_XLB-4" title="Martin XLB-4">LB-4</a></li> <li><a href="/wiki/Keystone_LB-5" title="Keystone LB-5">LB-5</a></li> <li><a href="/wiki/Keystone_LB-6" title="Keystone LB-6">LB-6</a></li> <li><a href="/wiki/Keystone_LB-6" title="Keystone LB-6">LB-7</a></li> <li><a href="/wiki/Keystone_LB-6" title="Keystone LB-6">LB-8</a></li> <li><a href="/wiki/Keystone_LB-6" title="Keystone LB-6">LB-9</a></li> <li><a href="/wiki/Keystone_B-3" title="Keystone B-3">LB-10</a></li> <li><a href="/wiki/Keystone_LB-6" title="Keystone LB-6">LB-11</a></li> <li><a href="/wiki/Keystone_LB-6" title="Keystone LB-6">LB-12</a></li> <li><a href="/wiki/Keystone_B-4" title="Keystone B-4">LB-13</a></li> <li><a href="/wiki/Keystone_B-5" title="Keystone B-5">LB-14</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Medium bomber</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/Huff-Daland_XB-1" title="Huff-Daland XB-1">B-1</a></li> <li><a href="/wiki/Curtiss_B-2_Condor" title="Curtiss B-2 Condor">B-2</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Heavy bomber</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/Huff-Daland_XHB-1" title="Huff-Daland XHB-1">HB-1</a></li> <li><a href="/wiki/Fokker_XHB-2" title="Fokker XHB-2">HB-2</a></li> <li><a href="/wiki/Huff-Daland_XHB-3" title="Huff-Daland XHB-3">HB-3</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Main sequence<br />(1930–1962)</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/Huff-Daland_XB-1" title="Huff-Daland XB-1">B-1</a></li> <li><a href="/wiki/Curtiss_B-2_Condor" title="Curtiss B-2 Condor">B-2</a></li> <li><a href="/wiki/Keystone_B-3" title="Keystone B-3">B-3</a></li> <li><a href="/wiki/Keystone_B-4" title="Keystone B-4">B-4</a></li> <li><a href="/wiki/Keystone_B-5" title="Keystone B-5">B-5</a></li> <li><a href="/wiki/Keystone_B-6" title="Keystone B-6">B-6</a></li> <li><a href="/wiki/Douglas_Y1B-7" title="Douglas Y1B-7">B-7</a></li> <li><a href="/wiki/Fokker_XB-8" title="Fokker XB-8">B-8</a></li> <li><a href="/wiki/Boeing_YB-9" title="Boeing YB-9">B-9</a></li> <li><a href="/wiki/Martin_B-10" title="Martin B-10">B-10</a></li> <li><a href="/wiki/Douglas_YOA-5" title="Douglas YOA-5">B-11</a></li> <li><a href="/wiki/Martin_B-10" title="Martin B-10">B-12</a></li> <li><a href="/wiki/Martin_B-10" title="Martin B-10">B-13</a></li> <li><a href="/wiki/Martin_B-10" title="Martin B-10">B-14</a></li> <li><a href="/wiki/Boeing_XB-15" title="Boeing XB-15">B-15</a></li> <li><a href="/wiki/Martin_XB-16" title="Martin XB-16">B-16</a></li> <li><a href="/wiki/Boeing_B-17_Flying_Fortress" title="Boeing B-17 Flying Fortress">B-17</a></li> <li><a href="/wiki/Douglas_B-18_Bolo" title="Douglas B-18 Bolo">B-18</a></li> <li><a href="/wiki/Douglas_XB-19" title="Douglas XB-19">B-19</a></li> <li><a href="/wiki/Boeing_Y1B-20" title="Boeing Y1B-20">B-20</a></li> <li><a href="/wiki/North_American_XB-21" title="North American XB-21">B-21</a></li> <li><a href="/wiki/Douglas_B-18_Bolo" title="Douglas B-18 Bolo">B-22</a></li> <li><a href="/wiki/Douglas_B-23_Dragon" title="Douglas B-23 Dragon">B-23</a></li> <li><a href="/wiki/Consolidated_B-24_Liberator" title="Consolidated B-24 Liberator">B-24</a></li> <li><a href="/wiki/North_American_B-25_Mitchell" title="North American B-25 Mitchell">B-25</a></li> <li><a href="/wiki/Martin_B-26_Marauder" title="Martin B-26 Marauder">B-26</a></li> <li><a href="/wiki/Martin_XB-27" title="Martin XB-27">B-27</a></li> <li><a href="/wiki/North_American_XB-28_Dragon" title="North American XB-28 Dragon">B-28</a></li> <li><a href="/wiki/Boeing_B-29_Superfortress" title="Boeing B-29 Superfortress">B-29</a> <ul><li><a href="/wiki/Boeing_B-50_Superfortress" title="Boeing B-50 Superfortress">B-29D</a></li></ul></li> <li><a href="/wiki/Lockheed_XB-30" title="Lockheed XB-30">B-30</a></li> <li><a href="/wiki/Douglas_XB-31" title="Douglas XB-31">B-31</a></li> <li><a href="/wiki/Consolidated_B-32_Dominator" title="Consolidated B-32 Dominator">B-32</a></li> <li><a href="/wiki/Martin_XB-33_Super_Marauder" title="Martin XB-33 Super Marauder">B-33</a></li> <li><a href="/wiki/Lockheed_Ventura" title="Lockheed Ventura">B-34</a></li> <li><a href="/wiki/Northrop_YB-35" title="Northrop YB-35">B-35</a></li> <li><a href="/wiki/Convair_B-36_Peacemaker" title="Convair B-36 Peacemaker">B-36</a> <ul><li><a href="/wiki/Convair_YB-60" title="Convair YB-60">B-36G</a></li> <li><a href="/wiki/Convair_NB-36H" title="Convair NB-36H">NB-36H</a></li></ul></li> <li><a href="/wiki/Lockheed_Ventura" title="Lockheed Ventura">B-37</a></li> <li><a href="/wiki/Boeing_XB-38_Flying_Fortress" title="Boeing XB-38 Flying Fortress">B-38</a></li> <li><a href="/wiki/Boeing_XB-39_Superfortress" title="Boeing XB-39 Superfortress">B-39</a></li> <li><a href="/wiki/Boeing_YB-40_Flying_Fortress" title="Boeing YB-40 Flying Fortress">B-40</a></li> <li><a href="/wiki/Consolidated_XB-41_Liberator" title="Consolidated XB-41 Liberator">B-41</a></li> <li><a href="/wiki/Douglas_XB-42_Mixmaster" title="Douglas XB-42 Mixmaster">B-42</a></li> <li><a href="/wiki/Douglas_XB-43_Jetmaster" title="Douglas XB-43 Jetmaster">B-43</a></li> <li><a href="/wiki/Boeing_B-50_Superfortress" title="Boeing B-50 Superfortress">B-44</a></li> <li><a href="/wiki/North_American_B-45_Tornado" title="North American B-45 Tornado">B-45</a></li> <li><a href="/wiki/Convair_XB-46" title="Convair XB-46">B-46</a></li> <li><a href="/wiki/Boeing_B-47_Stratojet" title="Boeing B-47 Stratojet">B-47</a> <ul><li><a href="/wiki/Boeing_XB-56" title="Boeing XB-56">B-47C</a></li></ul></li> <li><a href="/wiki/Martin_XB-48" title="Martin XB-48">B-48</a></li> <li><a class="mw-selflink selflink">B-49</a></li> <li><a href="/wiki/Boeing_B-50_Superfortress" title="Boeing B-50 Superfortress">B-50</a> <ul><li><a href="/wiki/Boeing_B-54" title="Boeing B-54">B-50C</a></li></ul></li> <li><a href="/wiki/Martin_XB-51" title="Martin XB-51">B-51</a></li> <li><a href="/wiki/Boeing_B-52_Stratofortress" title="Boeing B-52 Stratofortress">B-52</a></li> <li><a href="/wiki/Convair_XB-53" title="Convair XB-53">B-53</a></li> <li><a href="/wiki/Boeing_B-54" title="Boeing B-54">B-54</a></li> <li><a href="/wiki/Boeing_XB-55" title="Boeing XB-55">B-55</a></li> <li><a href="/wiki/Boeing_XB-56" title="Boeing XB-56">B-56</a></li> <li><a href="/wiki/Martin_B-57_Canberra" title="Martin B-57 Canberra">B-57</a> <ul><li><a href="/wiki/Martin_RB-57D_Canberra" title="Martin RB-57D Canberra">RB-57D</a></li> <li><a href="/wiki/Martin/General_Dynamics_RB-57F_Canberra" title="Martin/General Dynamics RB-57F Canberra">RB-57F</a></li></ul></li> <li><a href="/wiki/Convair_B-58_Hustler" title="Convair B-58 Hustler">B-58</a></li> <li><a href="/wiki/Boeing_XB-59" title="Boeing XB-59">B-59</a></li> <li><a href="/wiki/Convair_YB-60" title="Convair YB-60">B-60</a></li> <li><a href="/wiki/MGM-1_Matador" title="MGM-1 Matador">B-61</a></li> <li><a href="/wiki/SM-62_Snark" title="SM-62 Snark">B-62</a></li> <li><a href="/wiki/GAM-63_RASCAL" title="GAM-63 RASCAL">B-63</a></li> <li><a href="/wiki/SM-64_Navaho" title="SM-64 Navaho">B-64</a></li> <li><a href="/wiki/SM-65_Atlas" title="SM-65 Atlas">B-65</a></li> <li><a href="/wiki/Douglas_B-66_Destroyer" title="Douglas B-66 Destroyer">B-66</a></li> <li><a href="/wiki/GAM-67_Crossbow" title="GAM-67 Crossbow">B-67</a></li> <li><a href="/wiki/Martin_XB-68" title="Martin XB-68">B-68</a></li> <li><a href="/wiki/Lockheed_P-2_Neptune" title="Lockheed P-2 Neptune">B-69</a></li> <li><a href="/wiki/North_American_XB-70_Valkyrie" title="North American XB-70 Valkyrie">B-70</a></li> <li><a href="/wiki/Lockheed_SR-71_Blackbird" title="Lockheed SR-71 Blackbird">B-71</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Long-range bomber<br />(1935–1936)</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/Boeing_XB-15" title="Boeing XB-15">BLR-1</a></li> <li><a href="/wiki/Douglas_XB-19" title="Douglas XB-19">BLR-2</a></li> <li><a href="/wiki/Sikorsky_XBLR-3" title="Sikorsky XBLR-3">BLR-3</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Tri-Service sequence<br />(1962–current)</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/Rockwell_B-1_Lancer" title="Rockwell B-1 Lancer">B-1</a></li> <li><a href="/wiki/Northrop_B-2_Spirit" title="Northrop B-2 Spirit">B-2</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Non-sequential</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" 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:1%">Redesignated A-series</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/Douglas_A-20_Havoc" title="Douglas A-20 Havoc">B-20</a></li> <li><a href="/wiki/Douglas_A-26_Invader" title="Douglas A-26 Invader">B-26</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Fighter-bomber, in 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