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<div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">U.S. government command and control communications system</div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Typical_GWEN_relay_node.PNG" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/42/Typical_GWEN_relay_node.PNG/400px-Typical_GWEN_relay_node.PNG" decoding="async" width="400" height="377" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/42/Typical_GWEN_relay_node.PNG/600px-Typical_GWEN_relay_node.PNG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/42/Typical_GWEN_relay_node.PNG/800px-Typical_GWEN_relay_node.PNG 2x" data-file-width="950" data-file-height="895" /></a><figcaption>Typical GWEN relay node</figcaption></figure> <p>The <b>Ground Wave Emergency Network</b> (<b>GWEN</b>) was a US Air Force <a href="/wiki/Command_and_control_(military)" class="mw-redirect" title="Command and control (military)">command and control</a> communications system, deployed briefly between 1992 and 1994, intended for use by the United States government to facilitate <a href="/wiki/Military_communications" title="Military communications">military communications</a> before, during and after a <a href="/wiki/Nuclear_warfare" title="Nuclear warfare">nuclear war</a>. Specifically, the GWEN network was intended to survive the effects of an <a href="/wiki/Nuclear_electromagnetic_pulse" title="Nuclear electromagnetic pulse">electromagnetic pulse</a> from a <a href="/wiki/High-altitude_nuclear_explosion" title="High-altitude nuclear explosion">high-altitude nuclear explosion</a> and ensure that the United States President or their survivors could issue a launch order to <a href="/wiki/Strategic_Air_Command" title="Strategic Air Command">Strategic Air Command</a> bombers by radio.<sup id="cite_ref-autogenerated13_1-0" class="reference"><a href="#cite_note-autogenerated13-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-autogenerated1988_2-0" class="reference"><a href="#cite_note-autogenerated1988-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p><p>AN/URC-117 was the system's <a href="/wiki/Joint_Electronics_Type_Designation_System" title="Joint Electronics Type Designation System">Joint Electronics Type Designation System</a> identifier, which signified various radio components installed in different locations.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> Each GWEN Relay Node site featured a <a href="/wiki/Longwave" title="Longwave">longwave</a> transmitting tower, generally between 290 and 299 feet (88 and 91 m) tall, and emitting an <a href="/wiki/Radio_frequency" title="Radio frequency">RF</a> output of between 2,000 and 3,000 <a href="/wiki/Watt" title="Watt">watts</a>. Of 240 planned GWEN towers, only 58 were built. In 1994, a defense appropriations bill banned the funding of new GWEN tower construction, and a few months later, the GWEN program was cancelled by the <a href="/wiki/US_Air_Force" class="mw-redirect" title="US Air Force">US Air Force</a>.<sup id="cite_ref-Bulletin_5-0" class="reference"><a href="#cite_note-Bulletin-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> The <a href="/wiki/United_States_Coast_Guard" title="United States Coast Guard">United States Coast Guard</a> later outfitted a number of former GWEN sites to house the Nationwide <a href="/wiki/Differential_GPS" title="Differential GPS">Differential GPS</a> system.<sup id="cite_ref-USCG_6-0" class="reference"><a href="#cite_note-USCG-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-USDOT_7-0" class="reference"><a href="#cite_note-USDOT-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="History">History</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=AN/URC-117_Ground_Wave_Emergency_Network&action=edit&section=1" title="Edit section: History"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>GWEN was part of the Strategic Modernization Program designed to upgrade the nation's strategic communication system, thereby strengthening the value of nuclear <a href="/wiki/Deterrence_theory" title="Deterrence theory">deterrence</a>. The GWEN communication system, established in the late 1980s, was designed to transmit critical <a href="/wiki/Emergency_Action_Message" title="Emergency Action Message">Emergency Action Messages</a> (EAM) to United States nuclear forces. <a href="/wiki/Electromagnetic_pulse" title="Electromagnetic pulse">EMP</a> can produce a sudden <a href="/wiki/Voltage_spike" title="Voltage spike">power surge</a> over a widespread area that could overload unprotected electronic equipment and render it inoperable. In addition, EMP could interfere with radio transmissions that use the ionosphere for <a href="/wiki/Radio_propagation" title="Radio propagation">propagation</a>. It was thought that GWEN would use a ground-hugging wave for propagation and so be unaffected by the EMP.<sup id="cite_ref-autogenerated13_1-1" class="reference"><a href="#cite_note-autogenerated13-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> The network was conceived as an array of approximately 240 <a href="/wiki/Radio" title="Radio">radio</a> <a href="/wiki/Transceivers" class="mw-redirect" title="Transceivers">transceivers</a> distributed across the <a href="/wiki/CONUS" class="mw-redirect" title="CONUS">continental USA</a> which operated in the <a href="/wiki/Low_frequency" title="Low frequency">Low frequency</a> (LF) <a href="/wiki/Radio_band" class="mw-redirect" title="Radio band">radio band</a>. </p><p>Analysis showed that low-frequency (150-190 kilohertz) radio transmissions were largely unaffected by high-altitude EMP, and the Air Force Weapons Laboratory (<a href="/wiki/Kirtland_Air_Force_Base" title="Kirtland Air Force Base">Kirtland Air Force Base</a>) tested a small scale 'groundwave' transmission system in 1978-1982. Based on the groundwave concept's promise, USAF Headquarters issued a draft Program Management Directive (PMD) for a "Proliferated Groundwave Communications System (PGCS)" on 25 August 1981. The name of this proposed network system was changed from PGCS to Groundwave Emergency Network in February 1982<sup id="cite_ref-autogenerated_8-0" class="reference"><a href="#cite_note-autogenerated-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> The Air Force placed a tentative initial operating capability for GWEN by January 1992.<sup id="cite_ref-autogenerated1988_2-1" class="reference"><a href="#cite_note-autogenerated1988-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p><p>When doubts arose regarding the threat of electromagnetic pulse to permanently shut down communications, only 58 of the originally planned 240 GWEN towers were built. In 1994 a defense appropriations bill banned new towers from being built, and shortly after, the GWEN program was cancelled by the Air Force.<sup id="cite_ref-Bulletin_5-1" class="reference"><a href="#cite_note-Bulletin-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Operations">Operations</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=AN/URC-117_Ground_Wave_Emergency_Network&action=edit&section=2" title="Edit section: Operations"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Command and control messages originating at various military installations were transmitted on the 225 to 400 <a href="/wiki/MHz" class="mw-redirect" title="MHz">MHz</a> band and received by a network of unmanned relay stations, called "Relay Nodes", dispersed throughout the contiguous 48 states. The Relay Nodes would re-transmit these command and control messages to each other, and to Strategic Air Command operating locations and launch control centers using <a href="/wiki/Low_frequency" title="Low frequency">low frequencies</a> in the 150-175 <a href="/wiki/KHz" class="mw-redirect" title="KHz">kHz</a> range in order to take advantage of ground-hugging <a href="/wiki/Radio_propagation" title="Radio propagation">radio propagation</a> similar to commercial <a href="/wiki/AM_radio" class="mw-redirect" title="AM radio">AM radio</a> stations.<sup id="cite_ref-autogenerated13_1-2" class="reference"><a href="#cite_note-autogenerated13-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>Distance between the Relay Nodes were approximately 150–200 miles, determined by the ground wave transmission range.<sup id="cite_ref-autogenerated13_1-3" class="reference"><a href="#cite_note-autogenerated13-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> During initial operations, the Relay Nodes would receive and relay brief test messages every 20 minutes.<sup id="cite_ref-autogenerated1988_2-2" class="reference"><a href="#cite_note-autogenerated1988-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> The system had built-in redundancy, using <a href="/wiki/Packet_switching" title="Packet switching">packet switching</a> techniques for reconstruction of connectivity if system damage occurred.<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> <div class="mw-heading mw-heading3"><h3 id="Problems">Problems</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=AN/URC-117_Ground_Wave_Emergency_Network&action=edit&section=3" title="Edit section: Problems"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Early in its lifetime, electrical interference problems caused by GWEN system operation began to surface. Since the stations were using LF, the chosen frequency was within 1 kHz of the operating frequency of nearby electrical <a href="/wiki/Power_line_communication" class="mw-redirect" title="Power line communication">carrier current</a> systems. With GWEN handling constant voice, teletype and other data traffic, it caused interference to the power companies' diagnostic two kilohertz side carrier tone. When the side carrier tone disappeared due to interference from GWEN, the power grid would interpret that as a system fault.<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Site_layout">Site layout</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=AN/URC-117_Ground_Wave_Emergency_Network&action=edit&section=4" title="Edit section: Site layout"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The overall area of a GWEN Relay Node was approximately 11 acres (4.5 ha), approximately 700 feet (210 m) × 700 feet. It was surrounded on the perimeter by locked, 8-foot-high (2.4 m) chain-link fences topped with barbed wire. Typical site features included:<sup id="cite_ref-autogenerated13_1-4" class="reference"><a href="#cite_note-autogenerated13-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p> <ul><li>A main <a href="/wiki/Longwave" title="Longwave">Longwave</a> transmitting tower (generally between 290 and 299 feet (88 and 91 m) tall</li> <li>A radial network of underground wires forming a large <a href="/wiki/Ground_plane" title="Ground plane">ground plane</a> to serve as a reflecting surface for <a href="/wiki/Radio_waves" class="mw-redirect" title="Radio waves">radio waves</a></li> <li>Three electronic equipment shelters; two located near the perimeter of the site, and one at the base of the tower containing an <a href="/wiki/Antenna_tuner" title="Antenna tuner">antenna-tuning unit</a> (ATU)</li> <li>UHF and LF receive antennas mounted on either a 10 ft. mast, 30 ft. light pole, or 60–150 ft. tower.</li> <li>A diesel backup generator, with a two-chambered fuel tank having a capacity of 1,020 US gallons (3,900 L)</li></ul> <p>The main GWEN antenna operated intermittently in the LF band at 150 to 175 kilohertz (kHz) (below the bottom of the <a href="/wiki/Medium_wave" title="Medium wave">AM broadcast band</a> at 530 kHz). The peak broadcasting power was from 2,000 to 3,000 watts. The UHF antenna operated at 20 watts, between 225 and 400 megahertz (MHz).<sup id="cite_ref-autogenerated13_1-5" class="reference"><a href="#cite_note-autogenerated13-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="GWEN_site_locations">GWEN site locations</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=AN/URC-117_Ground_Wave_Emergency_Network&action=edit&section=5" title="Edit section: GWEN site locations"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>A 1998 <a href="/wiki/U.S._Department_of_Transportation" class="mw-redirect" title="U.S. Department of Transportation">U.S. Department of Transportation</a> environmental impact survey that proposed repurposing a number of existing GWEN sites for use by the <a href="/wiki/Differential_GPS" title="Differential GPS">Nationwide Differential Global Positioning System</a> listed the locations of 29 GWEN sites:<sup id="cite_ref-USCG_6-1" class="reference"><a href="#cite_note-USCG-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </p> <ul><li><a href="/wiki/Appleton,_Washington" title="Appleton, Washington">Appleton, Washington</a></li> <li><a href="/wiki/Austin,_Nevada" title="Austin, Nevada">Austin, Nevada</a></li> <li><a href="/wiki/Bakersfield,_California" title="Bakersfield, California">Bakersfield, California</a></li> <li><a href="/wiki/Billings,_Montana" title="Billings, Montana">Billings, Montana</a></li> <li><a href="/wiki/Bobo,_Quitman_County,_Mississippi" title="Bobo, Quitman County, Mississippi">Bobo, Mississippi</a></li> <li><a href="/wiki/Clark,_South_Dakota" title="Clark, South Dakota">Clark, South Dakota</a></li> <li><a href="/wiki/Edinburg,_North_Dakota" title="Edinburg, North Dakota">Edinburg, North Dakota</a></li> <li><a href="/wiki/Fenner,_California" title="Fenner, California">Fenner, California</a></li> <li><a href="/wiki/Flagstaff,_Arizona" title="Flagstaff, Arizona">Flagstaff, Arizona</a></li> <li><a href="/wiki/Gettysburg,_Pennsylvania" title="Gettysburg, Pennsylvania">Gettysburg, Pennsylvania</a></li> <li><a href="/wiki/Goodland,_Kansas" title="Goodland, Kansas">Goodland, Kansas</a></li> <li><a href="/wiki/Grady,_Alabama" title="Grady, Alabama">Grady, Alabama</a></li> <li><a href="/wiki/Great_Falls,_Montana" title="Great Falls, Montana">Great Falls, Montana</a></li> <li><a href="/wiki/Hackleburg,_Alabama" title="Hackleburg, Alabama">Hackleburg, Alabama</a></li> <li><a href="/wiki/Hagerstown,_Maryland" title="Hagerstown, Maryland">Hagerstown, Maryland</a></li> <li><a href="/wiki/Hawk_Run,_Pennsylvania" title="Hawk Run, Pennsylvania">Hawk Run, Pennsylvania</a></li> <li><a href="/wiki/Kirtland_AFB,_New_Mexico" class="mw-redirect" title="Kirtland AFB, New Mexico">Kirtland AFB, New Mexico</a></li> <li><a href="/wiki/Klamath_Falls,_Oregon" title="Klamath Falls, Oregon">Klamath Falls, Oregon</a></li> <li><a href="/wiki/Macon,_Georgia" title="Macon, Georgia">Macon, Georgia</a></li> <li><a href="/wiki/Medford,_Wisconsin" title="Medford, Wisconsin">Medford, Wisconsin</a></li> <li><a href="/wiki/Medora,_North_Dakota" title="Medora, North Dakota">Medora, North Dakota</a></li> <li><a href="/wiki/Onondaga,_Michigan" title="Onondaga, Michigan">Onondaga, Michigan</a></li> <li><a href="/wiki/Penobscot,_Maine" title="Penobscot, Maine">Penobscot, Maine</a></li> <li><a href="/wiki/Pueblo,_Colorado" title="Pueblo, Colorado">Pueblo, Colorado</a></li> <li><a href="/wiki/Ronan,_Montana" title="Ronan, Montana">Ronan, Montana</a></li> <li><a href="/wiki/Savannah,_Georgia" title="Savannah, Georgia">Savannah Beach, Georgia</a></li> <li><a href="/wiki/Spokane,_Washington" title="Spokane, Washington">Spokane, Washington</a></li> <li><a href="/wiki/Summerfield,_Texas" title="Summerfield, Texas">Summerfield, Texas</a></li> <li><a href="/wiki/Whitney,_Nebraska" title="Whitney, Nebraska">Whitney, Nebraska</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Termination">Termination</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=AN/URC-117_Ground_Wave_Emergency_Network&action=edit&section=6" title="Edit section: Termination"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Some of the initial towers had prompted groups of citizens in <a href="/wiki/Massachusetts" title="Massachusetts">Massachusetts</a>, <a href="/wiki/Oregon" title="Oregon">Oregon</a>, <a href="/wiki/Pennsylvania" title="Pennsylvania">Pennsylvania</a>, and <a href="/wiki/California" title="California">California</a> to organize to fight construction of GWEN towers in their areas. The groups believed that the presence of a GWEN node would increase the community's "strategic worth" in the eyes of the Soviet Union and thus invite attack. Responding to these groups, the Air Force repeatedly downplayed the importance of the towers, stating they were not worth that kind of attention by the Soviet Union.<sup id="cite_ref-autogenerated1988_2-3" class="reference"><a href="#cite_note-autogenerated1988-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p><p>Amid controversy and world geopolitical changes, GWEN's value diminished greatly in the post-<a href="/wiki/Cold_War" title="Cold War">Cold War</a> environment, in addition to its existence being rendered moot by the sustained effectiveness of predecessor and follow-on systems (<a href="/wiki/SLFCS" class="mw-redirect" title="SLFCS">Survivable Low Frequency Communication System</a> and <a href="/wiki/MEECN" class="mw-redirect" title="MEECN">Minimum Essential Emergency Communication Network</a> respectively). As early as 1990, legislative measures were enacted to terminate the program.<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> </p><p>In 1994, new construction of GWEN towers were banned after a defense appropriations bill eliminated any funding for the towers for one year. A few months later, the <a href="/wiki/United_States_Air_Force" title="United States Air Force">United States Air Force</a> announced that they would terminate the construction contract to build the remaining 25 towers, except for the money used to dismantle the system.<sup id="cite_ref-Norris_12-0" class="reference"><a href="#cite_note-Norris-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Gallery">Gallery</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=AN/URC-117_Ground_Wave_Emergency_Network&action=edit&section=7" title="Edit section: Gallery"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul class="gallery mw-gallery-traditional"> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:GWEN_antenna_tuning_unit_shelter_and_security_fence.PNG" class="mw-file-description" title="GWEN antenna shelter & security fence"><img alt="GWEN antenna shelter & security fence" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c9/GWEN_antenna_tuning_unit_shelter_and_security_fence.PNG/120px-GWEN_antenna_tuning_unit_shelter_and_security_fence.PNG" decoding="async" width="120" height="96" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c9/GWEN_antenna_tuning_unit_shelter_and_security_fence.PNG/180px-GWEN_antenna_tuning_unit_shelter_and_security_fence.PNG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c9/GWEN_antenna_tuning_unit_shelter_and_security_fence.PNG/240px-GWEN_antenna_tuning_unit_shelter_and_security_fence.PNG 2x" data-file-width="533" data-file-height="426" /></a></span></div> <div class="gallerytext">GWEN antenna shelter & security fence</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:GWEN_equipment_area.PNG" class="mw-file-description" title="GWEN equipment area"><img alt="GWEN equipment area" src="//upload.wikimedia.org/wikipedia/commons/thumb/0/0e/GWEN_equipment_area.PNG/120px-GWEN_equipment_area.PNG" decoding="async" width="120" height="88" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/0e/GWEN_equipment_area.PNG/180px-GWEN_equipment_area.PNG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/0e/GWEN_equipment_area.PNG/240px-GWEN_equipment_area.PNG 2x" data-file-width="596" data-file-height="437" /></a></span></div> <div class="gallerytext">GWEN equipment area</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Essex,_CA_GWEN_site_1.jpg" class="mw-file-description" title="Former GWEN tower, Essex, California"><img alt="Former GWEN tower, Essex, California" src="//upload.wikimedia.org/wikipedia/commons/thumb/2/20/Essex%2C_CA_GWEN_site_1.jpg/90px-Essex%2C_CA_GWEN_site_1.jpg" decoding="async" width="90" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/20/Essex%2C_CA_GWEN_site_1.jpg/135px-Essex%2C_CA_GWEN_site_1.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/20/Essex%2C_CA_GWEN_site_1.jpg/180px-Essex%2C_CA_GWEN_site_1.jpg 2x" data-file-width="2448" data-file-height="3264" /></a></span></div> <div class="gallerytext">Former GWEN tower, Essex, California</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:GWEN_Essex_CA_updated_GPD_diff_gear_1.jpg" class="mw-file-description" title="GPS gear added to former GWEN tower at Essex, California"><img alt="GPS gear added to former GWEN tower at Essex, California" src="//upload.wikimedia.org/wikipedia/commons/thumb/0/05/GWEN_Essex_CA_updated_GPD_diff_gear_1.jpg/90px-GWEN_Essex_CA_updated_GPD_diff_gear_1.jpg" decoding="async" width="90" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/05/GWEN_Essex_CA_updated_GPD_diff_gear_1.jpg/135px-GWEN_Essex_CA_updated_GPD_diff_gear_1.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/05/GWEN_Essex_CA_updated_GPD_diff_gear_1.jpg/180px-GWEN_Essex_CA_updated_GPD_diff_gear_1.jpg 2x" data-file-width="2448" data-file-height="3264" /></a></span></div> <div class="gallerytext">GPS gear added to former GWEN tower at Essex, California</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Essex_CA,_GWEN_rf_rad_warning_sign.jpg" class="mw-file-description" title="RF radiation warning sign on former GWEN site at Essex, California"><img alt="RF radiation warning sign on former GWEN site at Essex, California" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/51/Essex_CA%2C_GWEN_rf_rad_warning_sign.jpg/120px-Essex_CA%2C_GWEN_rf_rad_warning_sign.jpg" decoding="async" width="120" height="90" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/51/Essex_CA%2C_GWEN_rf_rad_warning_sign.jpg/180px-Essex_CA%2C_GWEN_rf_rad_warning_sign.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/51/Essex_CA%2C_GWEN_rf_rad_warning_sign.jpg/240px-Essex_CA%2C_GWEN_rf_rad_warning_sign.jpg 2x" data-file-width="3264" data-file-height="2448" /></a></span></div> <div class="gallerytext">RF radiation warning sign on former GWEN site at Essex, California</div> </li> </ul> <style data-mw-deduplicate="TemplateStyles:r1235681985">.mw-parser-output .side-box{margin:4px 0;box-sizing:border-box;border:1px solid #aaa;font-size:88%;line-height:1.25em;background-color:var(--background-color-interactive-subtle,#f8f9fa);display:flow-root}.mw-parser-output .side-box-abovebelow,.mw-parser-output .side-box-text{padding:0.25em 0.9em}.mw-parser-output .side-box-image{padding:2px 0 2px 0.9em;text-align:center}.mw-parser-output .side-box-imageright{padding:2px 0.9em 2px 0;text-align:center}@media(min-width:500px){.mw-parser-output .side-box-flex{display:flex;align-items:center}.mw-parser-output .side-box-text{flex:1;min-width:0}}@media(min-width:720px){.mw-parser-output .side-box{width:238px}.mw-parser-output .side-box-right{clear:right;float:right;margin-left:1em}.mw-parser-output .side-box-left{margin-right:1em}}</style><style data-mw-deduplicate="TemplateStyles:r1237033735">@media print{body.ns-0 .mw-parser-output .sistersitebox{display:none!important}}@media screen{html.skin-theme-clientpref-night .mw-parser-output .sistersitebox img[src*="Wiktionary-logo-en-v2.svg"]{background-color:white}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .sistersitebox img[src*="Wiktionary-logo-en-v2.svg"]{background-color:white}}</style><div class="side-box side-box-right plainlinks sistersitebox"><style data-mw-deduplicate="TemplateStyles:r1126788409">.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}</style> <div class="side-box-flex"> <div class="side-box-image"><span class="noviewer" typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png" decoding="async" width="30" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/45px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/59px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></span></span></div> <div class="side-box-text plainlist">Wikimedia Commons has media related to <span style="font-weight: bold; font-style: italic;"><a href="https://commons.wikimedia.org/wiki/Category:Ground_Wave_Emergency_Network" class="extiw" title="commons:Category:Ground Wave Emergency Network">Ground Wave Emergency Network</a></span>.</div></div> </div> <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=AN/URC-117_Ground_Wave_Emergency_Network&action=edit&section=8" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Command_and_Control_(military)" class="mw-redirect" title="Command and Control (military)">Command and Control (military)</a></li> <li><a href="/wiki/Differential_Global_Positioning_System" class="mw-redirect" title="Differential Global Positioning System">Differential Global Positioning System</a></li> <li><a href="/wiki/Post_Attack_Command_and_Control_System" class="mw-redirect" title="Post Attack Command and Control System">Post Attack Command and Control System</a> (<a href="/wiki/Post_Attack_Command_and_Control_System" class="mw-redirect" title="Post Attack Command and Control System">PACCS</a>)</li> <li><a href="/wiki/Minimum_Essential_Emergency_Communications_Network" title="Minimum Essential Emergency Communications Network">Minimum Essential Emergency Communications Network</a> (<a href="/wiki/Minimum_Essential_Emergency_Communications_Network" title="Minimum Essential Emergency Communications Network">MEECN</a>)</li> <li><a href="/wiki/Emergency_Rocket_Communications_System" class="mw-redirect" title="Emergency Rocket Communications System">Emergency Rocket Communications System</a> (<a href="/wiki/Emergency_Rocket_Communications_System" class="mw-redirect" title="Emergency Rocket Communications System">ERCS</a>)</li> <li><a href="/wiki/Survivable_Low_Frequency_Communications_System" title="Survivable Low Frequency Communications System">Survivable Low Frequency Communications System</a> (<a href="/wiki/Survivable_Low_Frequency_Communications_System" title="Survivable Low Frequency Communications System">SLFCS</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=AN/URC-117_Ground_Wave_Emergency_Network&action=edit&section=9" title="Edit section: References"><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 reflist-columns references-column-width" style="column-width: 30em;"> <ol class="references"> <li id="cite_note-autogenerated13-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-autogenerated13_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-autogenerated13_1-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-autogenerated13_1-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-autogenerated13_1-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-autogenerated13_1-4"><sup><i><b>e</b></i></sup></a> <a href="#cite_ref-autogenerated13_1-5"><sup><i><b>f</b></i></sup></a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://books.nap.edu/openbook.php?record_id=2046&page=13">Commission on Life Science: "Assessment of the Possible Health Effects of Ground Wave Emergency Network: Description of GWEN System", 1993</a></span> </li> <li id="cite_note-autogenerated1988-2"><span class="mw-cite-backlink">^ <a href="#cite_ref-autogenerated1988_2-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-autogenerated1988_2-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-autogenerated1988_2-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-autogenerated1988_2-3"><sup><i><b>d</b></i></sup></a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://www.nytimes.com/1988/09/12/us/us-to-complete-emergency-radio-network.html">Associated Press: "U.S. to Complete Emergency Radio Network"</a>, The New York Times, 12 September 1988</span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20100310102614/http://www.dtic.mil/doctrine/new_pubs/jp1_02.pdf">Defense Technical Information Center: Joint Publication 1-02. Department of Defense Dictionary of Military and Associated Terms</a></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.designation-systems.net/usmilav/electronics.html#_JETDS_AN_Listings">Designations Of U.S. Military Electronic And Communications Equipment</a> Designation-Systems.Net</span> </li> <li id="cite_note-Bulletin-5"><span class="mw-cite-backlink">^ <a href="#cite_ref-Bulletin_5-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Bulletin_5-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFStover2016" class="citation web cs1">Stover, Dawn (25 May 2016). <a rel="nofollow" class="external text" href="http://thebulletin.org/tower-woods-preparing-nuclear-war9488">"The tower in the woods: preparing for nuclear war"</a>. <i>thebulletin.org</i>. 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Retrieved <span class="nowrap">24 January</span> 2017</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=thebulletin.org&rft.atitle=The+tower+in+the+woods%3A+preparing+for+nuclear+war&rft.date=2016-05-25&rft.aulast=Stover&rft.aufirst=Dawn&rft_id=http%3A%2F%2Fthebulletin.org%2Ftower-woods-preparing-nuclear-war9488&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAN%2FURC-117+Ground+Wave+Emergency+Network" class="Z3988"></span></span> </li> <li id="cite_note-USCG-6"><span class="mw-cite-backlink">^ <a href="#cite_ref-USCG_6-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-USCG_6-1"><sup><i><b>b</b></i></sup></a></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.navcen.uscg.gov/doc/ndgps/PEA%20Text.doc">"Programmatic Environmental Assessment: Nationwide Differential Global Positioning System"</a>. <i>US Coast Guard</i>. US Dept. of Transportation<span class="reference-accessdate">. Retrieved <span class="nowrap">24 January</span> 2017</span>. <q>Ground Wave Emergency Network (GWEN) property and list of GWEN relay nodes</q></cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=US+Coast+Guard&rft.atitle=Programmatic+Environmental+Assessment%3A+Nationwide+Differential+Global+Positioning+System&rft_id=http%3A%2F%2Fwww.navcen.uscg.gov%2Fdoc%2Fndgps%2FPEA%2520Text.doc&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAN%2FURC-117+Ground+Wave+Emergency+Network" class="Z3988"></span></span> </li> <li id="cite_note-USDOT-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-USDOT_7-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFArnold" class="citation web cs1">Arnold, James A. <a rel="nofollow" class="external text" href="https://highways.dot.gov/public-roads/septemberoctober-2001/new-life-old-transmitters-converting-gwen-ndgps">"New Life for Old Transmitters: Converting GWEN to NDGPS"</a>. <i>Federal Highway Administration</i>. 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Held at Air Force Historical Research Agency, IRIS 01085265</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"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20110604203719/http://www.dtic.mil/cgi-bin/GetTRDoc?AD=ADA248364&Location=U2&doc=GetTRDoc.pdf">Naval Postgraduate School Thesis: "FEASIBILITY OF METEOR BURST BUOY RELAY AS A COMMAND AND CONTROL ASSET", March 1992</a></span> </li> <li id="cite_note-10"><span class="mw-cite-backlink"><b><a href="#cite_ref-10">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://ethw.org/Oral-History:Chester_Smith">"Chester Smith Oral History", Engineering and Technology History, 1 Dec 2008</a></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"><a rel="nofollow" class="external text" href="https://www.congress.gov/bill/101st-congress/senate-bill/2257">U.S. House of Representatives: S.2257, A bill to terminate the Ground-Wave Emergency Network (GWEN) program</a>, 8 March 1990.</span> </li> <li id="cite_note-Norris-12"><span class="mw-cite-backlink"><b><a href="#cite_ref-Norris_12-0">^</a></b></span> <span class="reference-text">Norris, Robert S.; Arkin, William M. <a rel="nofollow" class="external text" href="http://connection.ebscohost.com/c/articles/9402237696/gwen-will-see-you-again">Bulletin of the Atomic Scientists: GWEN will I see you again?</a><sup class="noprint Inline-Template"><span style="white-space: nowrap;">[<i><a href="/wiki/Wikipedia:Link_rot" title="Wikipedia:Link rot"><span title=" Dead link tagged November 2020">dead link</span></a></i><span style="visibility:hidden; color:transparent; padding-left:2px">‍</span>]</span></sup>, March/April 1994, Vol. 50 Issue 2, pgs 62-62</span> </li> </ol></div> <dl><dt>General</dt></dl> <ul><li><i>Closure of the Ground Wave Emergency Network (GWEN) Relay Nodes</i>, USAF EAIP 1998.</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=AN/URC-117_Ground_Wave_Emergency_Network&action=edit&section=10" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="http://www.fas.org/nuke/guide/usa/c3i/gwen.htm">FAS: Federation of American Scientists</a></li> <li><a rel="nofollow" class="external text" href="http://www.airforcebase.net/usaf/GWEN_list.html">USAF Installations</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 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href="mw-data:TemplateStyles:r1239334494"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239334494"></div><div role="navigation" class="navbox" aria-labelledby="United_States_Air_Force_system_numbers" style="padding:3px"><table class="nowraplinks hlist 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 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href="/wiki/Template_talk:USAF_system_codes" title="Template talk:USAF system codes"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:USAF_system_codes" title="Special:EditPage/Template:USAF system codes"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="United_States_Air_Force_system_numbers" style="font-size:114%;margin:0 4em"><a href="/wiki/United_States_Air_Force" title="United States Air Force">United States Air Force</a> system numbers</div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">100–199</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/Boeing_B-47_Stratojet" title="Boeing B-47 Stratojet">100</a></li> <li><a href="/wiki/Boeing_B-52_Stratofortress" title="Boeing B-52 Stratofortress">101</a> <ul><li><a href="/wiki/Pratt_%26_Whitney_JT3D" title="Pratt & Whitney JT3D">P</a></li></ul></li> <li><a href="/wiki/Convair_B-58_Hustler" title="Convair B-58 Hustler">102</a></li> <li><a href="/wiki/SM-62_Snark" title="SM-62 Snark">103</a></li> <li><a href="/wiki/SM-64_Navaho" title="SM-64 Navaho">104</a></li> <li><a href="/wiki/McDonnell_F-101_Voodoo" title="McDonnell F-101 Voodoo">105</a></li> <li><span class="tmp-color" style="color:grey">106</span><sup><small>1</small></sup></li> <li>107 <ul><li><a href="/wiki/SM-65_Atlas" title="SM-65 Atlas">A-1</a></li> <li><a href="/wiki/SM-68_Titan" title="SM-68 Titan">A-2</a></li></ul></li> <li><span class="tmp-color" style="color:grey">108</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">109</span><sup><small>1</small></sup></li> <li><a href="/wiki/North_American_XB-70_Valkyrie" title="North American XB-70 Valkyrie">110</a></li> <li><span class="tmp-color" style="color:grey">111</span><sup><small>1</small></sup></li> <li><a href="/wiki/GAM-63_RASCAL" title="GAM-63 RASCAL">112</a></li> <li><span class="tmp-color" style="color:grey">113</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">114</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">115</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">116</span><sup><small>1</small></sup></li> <li>117 <ul><li><a href="/w/index.php?title=Reconnaissance_Satellite_System&action=edit&redlink=1" class="new" title="Reconnaissance Satellite System (page does not exist)">L</a></li> <li><a href="/wiki/Samos_(satellite)" title="Samos (satellite)">M</a></li></ul></li> <li>118 <ul><li><a href="/wiki/LGM-118_Peacekeeper" title="LGM-118 Peacekeeper">A</a></li> <li><a href="/w/index.php?title=KA-27_(camera)&action=edit&redlink=1" class="new" title="KA-27 (camera) (page does not exist)">L</a></li> <li><a href="/w/index.php?title=Hypersonic_Reconnaissance_Manned_Boost-Glide_Rocket&action=edit&redlink=1" class="new" title="Hypersonic Reconnaissance Manned Boost-Glide Rocket (page does not exist)">P</a></li></ul></li> <li><a href="/wiki/Boeing_C-135_Stratolifter" title="Boeing C-135 Stratolifter">119</a> <ul><li><a href="/wiki/Pratt_%26_Whitney_JT3D" title="Pratt & Whitney JT3D">C/F</a></li> <li><a href="/wiki/CFM_International_CFM56" title="CFM International CFM56">E</a></li> <li><a href="/w/index.php?title=Strategic_Photo-Reconnaissance_Balloon_System&action=edit&redlink=1" class="new" title="Strategic Photo-Reconnaissance Balloon System (page does not exist)">L</a></li> <li><a href="/wiki/Boeing_EC-135" title="Boeing EC-135">T</a></li> <li><a href="/wiki/Boeing_KC-135_Stratotanker" title="Boeing KC-135 Stratotanker">Y</a></li></ul></li> <li><a href="/wiki/BGM-75_AICBM" title="BGM-75 AICBM">120</a></li> <li><a href="/wiki/GAM-67_Crossbow" title="GAM-67 Crossbow">121</a></li> <li><a href="/wiki/ADM-20_Quail" title="ADM-20 Quail">122</a></li> <li><a href="/wiki/XSM-73_Goose" title="XSM-73 Goose">123</a></li> <li><a href="/wiki/WS-124A_Flying_Cloud" title="WS-124A Flying Cloud">124</a></li> <li><a href="/wiki/WS-125" title="WS-125">125</a></li> <li><a href="/w/index.php?title=Bomber_Defense_Missile&action=edit&redlink=1" class="new" title="Bomber Defense Missile (page does not exist)">126</a></li> <li><span class="tmp-color" style="color:grey">127</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=WS-128A&action=edit&redlink=1" class="new" title="WS-128A (page does not exist)">128</a></li> <li><a href="/wiki/General_Dynamics_F-111_Aardvark" title="General Dynamics F-111 Aardvark">129</a></li> <li><a href="/w/index.php?title=WS-130A&action=edit&redlink=1" class="new" title="WS-130A (page does not exist)">130</a></li> <li><a href="/wiki/AGM-28_Hound_Dog" title="AGM-28 Hound Dog">131</a></li> <li>132 <ul><li><a href="/w/index.php?title=Bomber_Defense_Missile&action=edit&redlink=1" class="new" title="Bomber Defense Missile (page does not exist)">A</a></li> <li><a href="/w/index.php?title=WS-132B&action=edit&redlink=1" class="new" title="WS-132B (page does not exist)">B</a></li></ul></li> <li><a href="/wiki/LGM-30_Minuteman" title="LGM-30 Minuteman">133</a></li> <li><span class="tmp-color" style="color:grey">134</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=WS-135A&action=edit&redlink=1" class="new" title="WS-135A (page does not exist)">135</a></li> <li><span class="tmp-color" style="color:grey">136</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">137</span><sup><small>1</small></sup></li> <li><a href="/wiki/GAM-87_Skybolt" title="GAM-87 Skybolt">138</a></li> <li><a href="/wiki/Rockwell_B-1_Lancer" title="Rockwell B-1 Lancer">139</a></li> <li><a href="/wiki/AGM-69_SRAM" title="AGM-69 SRAM">140</a></li> <li><span class="tmp-color" style="color:grey">141</span><sup><small>1</small></sup></li> <li><a href="/wiki/Popeye_(missile)" title="Popeye (missile)">142</a></li> <li><span class="tmp-color" style="color:grey">143–197</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=WS-198A&action=edit&redlink=1" class="new" title="WS-198A (page does not exist)">198</a></li> <li><a href="/wiki/WS-199" title="WS-199">199</a> <ul><li><a href="/wiki/Bold_Orion" title="Bold Orion">B</a></li> <li><a href="/wiki/High_Virgo" title="High Virgo">C</a></li> <li><a href="/wiki/Alpha_Draco" title="Alpha Draco">D</a></li> <li><a href="/w/index.php?title=WS-199Y&action=edit&redlink=1" class="new" title="WS-199Y (page does not exist)">Y</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">200–299</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/CIM-10_Bomarc" title="CIM-10 Bomarc">200</a></li> <li>201 <ul><li><a href="/wiki/Convair_F-102_Delta_Dagger" title="Convair F-102 Delta Dagger">A/L</a></li> <li><a href="/wiki/Convair_F-106_Delta_Dart" title="Convair F-106 Delta Dart">B/W</a></li> <li><a href="/wiki/Pratt_%26_Whitney_J75" title="Pratt & Whitney J75">E</a></li></ul></li> <li><a href="/wiki/North_American_XF-108_Rapier" title="North American XF-108 Rapier">202</a></li> <li><span class="tmp-color" style="color:grey">203</span><sup><small>1</small></sup></li> <li><a href="/wiki/Republic_XF-103" title="Republic XF-103">204</a></li> <li><a href="/wiki/Northrop_F-89_Scorpion" title="Northrop F-89 Scorpion">205</a></li> <li><a href="/wiki/North_American_F-86D_Sabre" title="North American F-86D Sabre">206</a></li> <li><span class="tmp-color" style="color:grey">207</span><sup><small>1</small></sup></li> <li><a href="/wiki/AIM-26_Falcon" title="AIM-26 Falcon">208</a></li> <li><span class="tmp-color" style="color:grey">209</span><sup><small>1</small></sup></li> <li><a href="/wiki/Samos_(satellite)" title="Samos (satellite)">210</a></li> <li><span class="tmp-color" style="color:grey">211</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=Air_Weapons_Control_System&action=edit&redlink=1" class="new" title="Air Weapons Control System (page does not exist)">212</a></li> <li><a href="/wiki/Distant_Early_Warning_Line" title="Distant Early Warning Line">213</a></li> <li><a href="/wiki/Lockheed_C-121_Constellation" title="Lockheed C-121 Constellation">214</a></li> <li><span class="tmp-color" style="color:grey">215</span><sup><small>1</small></sup></li> <li><a href="/wiki/Semi-Automatic_Ground_Environment" title="Semi-Automatic Ground Environment">216</a></li> <li><a href="/wiki/McDonnell_F-101_Voodoo" title="McDonnell F-101 Voodoo">217</a></li> <li><a href="/wiki/RIM-8_Talos" title="RIM-8 Talos">218</a></li> <li><span class="tmp-color" style="color:grey">219</span><sup><small>1</small></sup></li> <li><a href="/wiki/AIM-4_Falcon" title="AIM-4 Falcon">220</a></li> <li><a href="/wiki/AIM-9_Sidewinder" title="AIM-9 Sidewinder">221</a></li> <li>222 <ul><li><a href="/wiki/Project_Wizard" title="Project Wizard">A</a></li> <li><a href="/w/index.php?title=Advanced_Electro-Optical_Countermeasures&action=edit&redlink=1" class="new" title="Advanced Electro-Optical Countermeasures (page does not exist)">G</a></li></ul></li> <li><span class="tmp-color" style="color:grey">223</span><sup><small>1</small></sup></li> <li><a href="/wiki/Nike_Zeus" title="Nike Zeus">224</a></li> <li><span class="tmp-color" style="color:grey">225</span><sup><small>1</small></sup></li> <li><a href="/wiki/AIM-7_Sparrow" title="AIM-7 Sparrow">226</a></li> <li><span class="tmp-color" style="color:grey">227–238</span><sup><small>1</small></sup></li> <li><a href="/wiki/Missile_Defense_Alarm_System" title="Missile Defense Alarm System">239</a></li> <li><span class="tmp-color" style="color:grey">240–278</span><sup><small>1</small></sup></li> <li><a href="/wiki/Scout_(rocket_family)" title="Scout (rocket family)">279</a></li> <li><span class="tmp-color" style="color:grey">280–298</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=WS-299A&action=edit&redlink=1" class="new" title="WS-299A (page does not exist)">299</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">300–399</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/Republic_F-105_Thunderchief" title="Republic F-105 Thunderchief">300</a></li> <li><span class="tmp-color" style="color:grey">301</span><sup><small>1</small></sup></li> <li><a href="/wiki/Martin_XB-68" title="Martin XB-68">302</a></li> <li><a href="/wiki/Lockheed_F-104_Starfighter" title="Lockheed F-104 Starfighter">303</a></li> <li><span class="tmp-color" style="color:grey">304</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">305</span><sup><small>1</small></sup></li> <li>306 <ul><li><a href="/wiki/Republic_F-105_Thunderchief" title="Republic F-105 Thunderchief">A/L</a></li> <li><a href="/wiki/North_American_F-107" title="North American F-107">B</a></li></ul></li> <li><a href="/wiki/Martin_B-57_Canberra" title="Martin B-57 Canberra">307</a></li> <li><a href="/wiki/Douglas_B-66_Destroyer" title="Douglas B-66 Destroyer">308</a></li> <li><a href="/wiki/MGM-13_Mace" title="MGM-13 Mace">309</a></li> <li><span class="tmp-color" style="color:grey">310</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">311</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">312</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">313</span><sup><small>1</small></sup></li> <li><a href="/wiki/AGM-62_Walleye" title="AGM-62 Walleye">314</a></li> <li>315 <ul><li><a href="/wiki/PGM-17_Thor" title="PGM-17 Thor">A-1</a></li> <li><a href="/wiki/PGM-19_Jupiter" title="PGM-19 Jupiter">A-2</a></li></ul></li> <li><a href="/wiki/North_American_F-86_Sabre" title="North American F-86 Sabre">316</a></li> <li><a href="/w/index.php?title=Anti-Tank_Guided_Air_Rocket&action=edit&redlink=1" class="new" title="Anti-Tank Guided Air Rocket (page does not exist)">317</a></li> <li><span class="tmp-color" style="color:grey">318</span><sup><small>1</small></sup></li> <li><a href="/wiki/AGM-65_Maverick" title="AGM-65 Maverick">319</a></li> <li><span class="tmp-color" style="color:grey">320</span><sup><small>1</small></sup></li> <li><a href="/wiki/AGM-12_Bullpup" title="AGM-12 Bullpup">321</a></li> <li><span class="tmp-color" style="color:grey">322</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=Tactical_Strike/Reconnaissance_System&action=edit&redlink=1" class="new" title="Tactical Strike/Reconnaissance System (page does not exist)">323</a></li> <li><a href="/wiki/General_Dynamics_F-111_Aardvark" title="General Dynamics F-111 Aardvark">324</a> <ul><li><a href="/wiki/General_Dynamics%E2%80%93Grumman_EF-111A_Raven" title="General Dynamics–Grumman EF-111A Raven">L</a></li> <li><a href="/wiki/Pratt_%26_Whitney_TF30" title="Pratt & Whitney TF30">M/N</a></li></ul></li> <li><a href="/w/index.php?title=Mobile_Medium_Range_Ballistic_Missile&action=edit&redlink=1" class="new" title="Mobile Medium Range Ballistic Missile (page does not exist)">325</a></li> <li><a href="/wiki/McDonnell_Douglas_F-4_Phantom_II" title="McDonnell Douglas F-4 Phantom II">326</a></li> <li><a href="/wiki/McDonnell_Douglas_F-4_Phantom_II" title="McDonnell Douglas F-4 Phantom II">327</a> <ul><li><a href="/wiki/General_Electric_J79" title="General Electric J79">E</a></li></ul></li> <li><a href="/wiki/McDonnell_Douglas_F-15_Eagle" title="McDonnell Douglas F-15 Eagle">328</a> <ul><li><a href="/wiki/McDonnell_Douglas_F-15E_Strike_Eagle" title="McDonnell Douglas F-15E Strike Eagle">E</a></li></ul></li> <li><a href="/wiki/Fairchild_Republic_A-10_Thunderbolt_II" title="Fairchild Republic A-10 Thunderbolt II">329</a> <ul><li><a href="/wiki/General_Electric_TF34" title="General Electric TF34">F</a></li></ul></li> <li><span class="tmp-color" style="color:grey">330</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">331</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">332</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">333</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">334</span><sup><small>1</small></sup></li> <li><a href="/wiki/Cessna_A-37_Dragonfly" title="Cessna A-37 Dragonfly">335</a></li> <li><a href="/wiki/North_American_Rockwell_OV-10_Bronco" title="North American Rockwell OV-10 Bronco">336</a></li> <li><a href="/wiki/LTV_A-7_Corsair_II" title="LTV A-7 Corsair II">337</a></li> <li><span class="tmp-color" style="color:grey">338–379</span><sup><small>1</small></sup></li> <li>380 <ul><li><a href="/wiki/Pratt_%26_Whitney_F100" title="Pratt & Whitney F100">A/B/E/F/N</a></li> <li><a href="/wiki/General_Electric_F110" title="General Electric F110">P</a></li></ul></li> <li><span class="tmp-color" style="color:grey">381–397</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=Theater_Ballistic_Missile&action=edit&redlink=1" class="new" title="Theater Ballistic Missile (page does not exist)">398</a></li> <li>399 <ul><li><a href="/w/index.php?title=WS-399A&action=edit&redlink=1" class="new" title="WS-399A (page does not exist)">A</a></li> <li><a href="/w/index.php?title=WS-399B&action=edit&redlink=1" class="new" title="WS-399B (page does not exist)">B</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">400–499</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lockheed_C-130_Hercules" title="Lockheed C-130 Hercules">400</a> <ul><li><a href="/wiki/Lockheed_AC-130" title="Lockheed AC-130">B/C/N</a></li> <li><a href="/wiki/Allison_T56" title="Allison T56">E</a></li> <li><a href="/wiki/Lockheed_MC-130" title="Lockheed MC-130">G/H</a></li> <li><a href="/wiki/Lockheed_RC-130_Hercules" title="Lockheed RC-130 Hercules">M</a></li></ul></li> <li><a href="/wiki/Douglas_C-132" title="Douglas C-132">401</a></li> <li><a href="/wiki/Douglas_C-133_Cargomaster" title="Douglas C-133 Cargomaster">402</a></li> <li><span class="tmp-color" style="color:grey">403</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=Air_Traffic_Control_And_Landing_System&action=edit&redlink=1" class="new" title="Air Traffic Control And Landing System (page does not exist)">404</a></li> <li>405 <ul><li><a href="/w/index.php?title=Spaceborne_Laser_Communications_System&action=edit&redlink=1" class="new" title="Spaceborne Laser Communications System (page does not exist)">B</a></li></ul></li> <li><a href="/w/index.php?title=System_405C&action=edit&redlink=1" class="new" title="System 405C (page does not exist)">C</a></li> <li><a href="/w/index.php?title=System_405D&action=edit&redlink=1" class="new" title="System 405D (page does not exist)">D</a></li> <li><span class="tmp-color" style="color:grey">406</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=Ground_Theater_Air_Control_System&action=edit&redlink=1" class="new" title="Ground Theater Air Control System (page does not exist)">407</a></li> <li><span class="tmp-color" style="color:grey">408</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">409</span><sup><small>1</small></sup></li> <li><a href="/wiki/Lockheed_C-5_Galaxy" title="Lockheed C-5 Galaxy">410</a> <ul><li><a href="/wiki/General_Electric_TF39" title="General Electric TF39">E</a></li> <li><a href="/w/index.php?title=Area_Surveillance_Control_System&action=edit&redlink=1" class="new" title="Area Surveillance Control System (page does not exist)">L</a></li></ul></li> <li><a href="/wiki/Boeing_E-3_Sentry" title="Boeing E-3 Sentry">411</a> <ul><li><a href="/wiki/Pratt_%26_Whitney_JT3D" title="Pratt & Whitney JT3D">E</a></li> <li><a href="/wiki/Airborne_Warning_And_Control_System" class="mw-redirect" title="Airborne Warning And Control System">L</a></li></ul></li> <li><a href="/w/index.php?title=Air_Weapons_Control_System&action=edit&redlink=1" class="new" title="Air Weapons Control System (page does not exist)">412</a></li> <li><a href="/wiki/Distant_Early_Warning_Line" title="Distant Early Warning Line">413</a></li> <li>414 <ul><li><a href="/w/index.php?title=Atmospheric_Early_Warning_System&action=edit&redlink=1" class="new" title="Atmospheric Early Warning System (page does not exist)">L</a></li> <li><a href="/w/index.php?title=SS-414M&action=edit&redlink=1" class="new" title="SS-414M (page does not exist)">M</a></li></ul></li> <li><a href="/w/index.php?title=Military_Airlift_Command_Integrated_Management_System&action=edit&redlink=1" class="new" title="Military Airlift Command Integrated Management System (page does not exist)">415</a></li> <li>416 <ul><li><a href="/wiki/Semi-Automatic_Ground_Environment" title="Semi-Automatic Ground Environment">L</a></li> <li><a href="/wiki/Back-Up_Interceptor_Control" title="Back-Up Interceptor Control">M (I)</a></li> <li><a href="/w/index.php?title=White_Sands_Missile_Range_Surveillance_System&action=edit&redlink=1" class="new" title="White Sands Missile Range Surveillance System (page does not exist)">M (II)</a></li> <li><a href="/w/index.php?title=Seek_Dawn&action=edit&redlink=1" class="new" title="Seek Dawn (page does not exist)">P</a></li> <li><a href="/w/index.php?title=Common_Digitizer&action=edit&redlink=1" class="new" title="Common Digitizer (page does not exist)">Q</a></li></ul></li> <li><a href="/w/index.php?title=SS-417L&action=edit&redlink=1" class="new" title="SS-417L (page does not exist)">417</a></li> <li>418 <ul><li><a href="/w/index.php?title=Ryukyu_Air_Defense_System&action=edit&redlink=1" class="new" title="Ryukyu Air Defense System (page does not exist)">L</a></li> <li><a href="/w/index.php?title=Hawaiian_Air_Defense_System&action=edit&redlink=1" class="new" title="Hawaiian Air Defense System (page does not exist)">M</a></li></ul></li> <li><span class="tmp-color" style="color:grey">419</span><sup><small>1</small></sup></li> <li><a href="/wiki/Northrop_F-5" title="Northrop F-5">420</a> <ul><li><a href="/wiki/Northrop_T-38_Talon" title="Northrop T-38 Talon">L/W</a></li></ul></li> <li><span class="tmp-color" style="color:grey">421</span><sup><small>1</small></sup></li> <li><a href="/wiki/Boeing_KC-135_Stratotanker" title="Boeing KC-135 Stratotanker">422</a></li> <li><a href="/wiki/Automatic_Digital_Network" title="Automatic Digital Network">423</a></li> <li><a href="/wiki/Cessna_T-37_Tweet" title="Cessna T-37 Tweet">424</a></li> <li><a href="/wiki/Cheyenne_Mountain_Complex" title="Cheyenne Mountain Complex">425</a></li> <li>426 <ul><li><a href="/wiki/Northrop_AQM-35" title="Northrop AQM-35">L</a></li> <li><a href="/w/index.php?title=SS-426M&action=edit&redlink=1" class="new" title="SS-426M (page does not exist)">M</a></li></ul></li> <li>427 <ul><li><a href="/wiki/Lockheed_AQM-60_Kingfisher" title="Lockheed AQM-60 Kingfisher">L</a></li> <li><a href="/w/index.php?title=Military_Airlift_Command_Integrated_Management_System&action=edit&redlink=1" class="new" title="Military Airlift Command Integrated Management System (page does not exist)">M</a></li></ul></li> <li>428 <ul><li><a href="/w/index.php?title=Marine_Air_Ground_Intelligence_System&action=edit&redlink=1" class="new" title="Marine Air Ground Intelligence System (page does not exist)">A</a></li> <li><a class="mw-selflink selflink">L</a></li></ul></li> <li><a href="/wiki/Ryan_Firebee" title="Ryan Firebee">429</a></li> <li><a href="/w/index.php?title=Photographic_Processing_and_Interpretation_Facility&action=edit&redlink=1" class="new" title="Photographic Processing and Interpretation Facility (page does not exist)">430</a></li> <li>431 <ul><li><a href="/w/index.php?title=System_431G&action=edit&redlink=1" class="new" title="System 431G (page does not exist)">G (I)</a></li> <li><a href="/w/index.php?title=Traffic_Control_And_Landing_System&action=edit&redlink=1" class="new" title="Traffic Control And Landing System (page does not exist)">G (II)</a></li></ul></li> <li><a href="/w/index.php?title=Crash_Locator_System&action=edit&redlink=1" class="new" title="Crash Locator System (page does not exist)">432</a></li> <li><a href="/w/index.php?title=METRO_Weather_Observation_and_Forecasting_System&action=edit&redlink=1" class="new" title="METRO Weather Observation and Forecasting System (page does not exist)">433</a></li> <li><a href="/wiki/Air_Force_Space_Surveillance_System" title="Air Force Space Surveillance System">434</a></li> <li>435 <ul><li><a href="/w/index.php?title=Navy_Navigational_Satellite_System&action=edit&redlink=1" class="new" title="Navy Navigational Satellite System (page does not exist)">A</a></li> <li><a href="/wiki/Boeing_EC-135" title="Boeing EC-135">L</a></li></ul></li> <li><a href="/wiki/Strategic_Automated_Command_and_Control_System" title="Strategic Automated Command and Control System">436</a></li> <li><a href="/w/index.php?title=Nuclear-Armed_Unguided_Satellite_Inspection_System&action=edit&redlink=1" class="new" title="Nuclear-Armed Unguided Satellite Inspection System (page does not exist)">437</a></li> <li><a href="/w/index.php?title=AIDS_Intelligence_Data_Handling_System&action=edit&redlink=1" class="new" title="AIDS Intelligence Data Handling System (page does not exist)">438</a></li> <li><a href="/w/index.php?title=Sea_Coastal_Cable_Communications_System&action=edit&redlink=1" class="new" title="Sea Coastal Cable Communications System (page does not exist)">439</a></li> <li><a href="/w/index.php?title=Forward_Scatter_Over-the-Horizon_Radar_System&action=edit&redlink=1" class="new" title="Forward Scatter Over-the-Horizon Radar System (page does not exist)">440</a></li> <li>441 <ul><li><a href="/wiki/Cobra_Mist" title="Cobra Mist">A</a></li> <li><a href="/w/index.php?title=Cobra_Talon&action=edit&redlink=1" class="new" title="Cobra Talon (page does not exist)">D</a></li> <li><a href="/wiki/Air_Force_Satellite_Communications" title="Air Force Satellite Communications">L</a></li></ul></li> <li><a href="/wiki/Lockheed_X-7" title="Lockheed X-7">442</a></li> <li><a href="/wiki/Bell_UH-1_Iroquois" title="Bell UH-1 Iroquois">443</a></li> <li><span class="tmp-color" style="color:grey">444</span><sup><small>1</small></sup></li> <li>445 <ul><li><a href="/w/index.php?title=SS-445L&action=edit&redlink=1" class="new" title="SS-445L (page does not exist)">L</a></li> <li><a href="/w/index.php?title=SS-445M&action=edit&redlink=1" class="new" title="SS-445M (page does not exist)">M</a></li></ul></li> <li><a href="/wiki/De_Havilland_Canada_DHC-4_Caribou" title="De Havilland Canada DHC-4 Caribou">446</a></li> <li><a href="/wiki/North_American_X-15" title="North American X-15">447</a></li> <li><span class="tmp-color" style="color:grey">448</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">449</span><sup><small>1</small></sup></li> <li><a href="/wiki/LORAN" title="LORAN">450</a></li> <li>451 <ul><li><a href="/w/index.php?title=Spain_Air_Defense_System&action=edit&redlink=1" class="new" title="Spain Air Defense System (page does not exist)">D</a></li> <li><a href="/wiki/Joint_Tactical_Information_Distribution_System" title="Joint Tactical Information Distribution System">L</a></li></ul></li> <li><a href="/wiki/North_American_Sabreliner" title="North American Sabreliner">452</a></li> <li><a href="/wiki/Avro_Canada_VZ-9_Avrocar" title="Avro Canada VZ-9 Avrocar">453</a></li> <li><span class="tmp-color" style="color:grey">454</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=HYWARDS&action=edit&redlink=1" class="new" title="HYWARDS (page does not exist)">455</a></li> <li><a href="/w/index.php?title=Quadrajector&action=edit&redlink=1" class="new" title="Quadrajector (page does not exist)">456</a></li> <li><span class="tmp-color" style="color:grey">457</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=Wideband_Transmission_System&action=edit&redlink=1" class="new" title="Wideband Transmission System (page does not exist)">458</a></li> <li><a href="/w/index.php?title=RS-459L&action=edit&redlink=1" class="new" title="RS-459L (page does not exist)">459</a></li> <li><a href="/wiki/Northrop_Grumman_E-8_Joint_STARS" title="Northrop Grumman E-8 Joint STARS">460</a> <ul><li><a href="/wiki/Boeing_WC-135_Constant_Phoenix" title="Boeing WC-135 Constant Phoenix">L</a></li></ul></li> <li><a href="/w/index.php?title=High-Altitude_Balloon_Reconnaissance_System&action=edit&redlink=1" class="new" title="High-Altitude Balloon Reconnaissance System (page does not exist)">461</a></li> <li><a href="/wiki/Beechcraft_AQM-37_Jayhawk" title="Beechcraft AQM-37 Jayhawk">462</a></li> <li><a href="/wiki/463L_master_pallet" title="463L master pallet">463</a></li> <li><a href="/wiki/Boeing_X-20_Dyna-Soar" title="Boeing X-20 Dyna-Soar">464</a></li> <li><a href="/wiki/ITT_465L_Strategic_Air_Command_Control_System" title="ITT 465L Strategic Air Command Control System">465</a></li> <li><a href="/w/index.php?title=466L_Electromagnetic_Intelligence_System&action=edit&redlink=1" class="new" title="466L Electromagnetic Intelligence System (page does not exist)">466</a></li> <li><a href="/w/index.php?title=Advanced_Navigational_Training_Support_System&action=edit&redlink=1" class="new" title="Advanced Navigational Training Support System (page does not exist)">467</a></li> <li><a href="/wiki/Lockheed_JetStar" title="Lockheed JetStar">468</a></li> <li><a href="/w/index.php?title=Conversion_Of_Range_Telemetry_Systems&action=edit&redlink=1" class="new" title="Conversion Of Range Telemetry Systems (page does not exist)">469</a></li> <li><a href="/w/index.php?title=System_470L&action=edit&redlink=1" class="new" title="System 470L (page does not exist)">470</a></li> <li>471 <ul><li><a href="/wiki/Boeing_Vertol_CH-46_Sea_Knight" title="Boeing Vertol CH-46 Sea Knight">L (I)</a></li> <li><a href="/wiki/Boeing_CH-47_Chinook" title="Boeing CH-47 Chinook">L (II)</a></li></ul></li> <li><a href="/w/index.php?title=Support_System_Test_Aircraft&action=edit&redlink=1" class="new" title="Support System Test Aircraft (page does not exist)">472</a></li> <li><a href="/w/index.php?title=USAF_Command_and_Control_System&action=edit&redlink=1" class="new" title="USAF Command and Control System (page does not exist)">473</a></li> <li>474 <ul><li><a href="/wiki/Ballistic_Missile_Early_Warning_System" title="Ballistic Missile Early Warning System">L</a></li> <li><a href="/wiki/AN/FPS-26_Radar" title="AN/FPS-26 Radar">N</a></li></ul></li> <li><span class="tmp-color" style="color:grey">475</span><sup><small>1</small></sup></li> <li><a href="/wiki/Lockheed_C-141_Starlifter" title="Lockheed C-141 Starlifter">476</a> <ul><li><a href="/wiki/Pratt_%26_Whitney_JT3D" title="Pratt & Whitney JT3D">E</a></li></ul></li> <li><a href="/wiki/GE_477L_Nuclear_Detection_and_Reporting_System" title="GE 477L Nuclear Detection and Reporting System">477</a></li> <li>478 <ul><li><a href="/wiki/LTV_XC-142" title="LTV XC-142">A</a></li> <li><a href="/w/index.php?title=Tri-Service_Tactical_Communications_System&action=edit&redlink=1" class="new" title="Tri-Service Tactical Communications System (page does not exist)">T</a></li></ul></li> <li><span class="tmp-color" style="color:grey">479</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=SS-480L&action=edit&redlink=1" class="new" title="SS-480L (page does not exist)">480</a></li> <li><a href="/wiki/Boeing_E-4" title="Boeing E-4">481</a> <ul><li><a href="/wiki/Post-Attack_Command_and_Control_System" title="Post-Attack Command and Control System">L</a></li></ul></li> <li><a href="/wiki/Sikorsky_CH-53_Sea_Stallion" title="Sikorsky CH-53 Sea Stallion">482</a> <ul><li><a href="/wiki/General_Electric_T64" title="General Electric T64">E</a></li> <li><a href="/w/index.php?title=Ground_Theater_Air_Control_System&action=edit&redlink=1" class="new" title="Ground Theater Air Control System (page does not exist)">L</a></li> <li><a href="/wiki/Sikorsky_MH-53" title="Sikorsky MH-53">M/Z</a></li></ul></li> <li><a href="/w/index.php?title=Air/Ground_Digital_Secure_Teletype_Communication_System&action=edit&redlink=1" class="new" title="Air/Ground Digital Secure Teletype Communication System (page does not exist)">483</a></li> <li>484 <ul><li><a href="/w/index.php?title=High_Frequency_Global_Communication_System&action=edit&redlink=1" class="new" title="High Frequency Global Communication System (page does not exist)">L</a></li> <li><a href="/w/index.php?title=Build_Back&action=edit&redlink=1" class="new" title="Build Back (page does not exist)">M</a></li> <li><a href="/w/index.php?title=Wet_Wash&action=edit&redlink=1" class="new" title="Wet Wash (page does not exist)">N</a></li></ul></li> <li>485 <ul><li><a href="/w/index.php?title=Ground_Theater_Air_Control_System&action=edit&redlink=1" class="new" title="Ground Theater Air Control System (page does not exist)">L</a></li> <li><a href="/wiki/Sikorsky_S-61R" title="Sikorsky S-61R">Z</a></li></ul></li> <li><a href="/w/index.php?title=Mediterranean_Communications_System&action=edit&redlink=1" class="new" title="Mediterranean Communications System (page does not exist)">486</a></li> <li><a href="/wiki/Survivable_Low_Frequency_Communications_System" title="Survivable Low Frequency Communications System">487</a></li> <li><a href="/wiki/Green_Pine_(communications)" title="Green Pine (communications)">488</a></li> <li><a href="/w/index.php?title=Northern_Area_Command_System&action=edit&redlink=1" class="new" title="Northern Area Command System (page does not exist)">489</a></li> <li>490 <ul><li><a href="/w/index.php?title=Automatic_Voice_Network_of_the_Defense_Communications_System&action=edit&redlink=1" class="new" title="Automatic Voice Network of the Defense Communications System (page does not exist)">L</a></li> <li><a href="/w/index.php?title=Post_Attack_Intercontinental_Link&action=edit&redlink=1" class="new" title="Post Attack Intercontinental Link (page does not exist)">M</a></li></ul></li> <li><span class="tmp-color" style="color:grey">491</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=United_States_Strike_Command_and_Control&action=edit&redlink=1" class="new" title="United States Strike Command and Control (page does not exist)">492</a></li> <li><a href="/wiki/Automatic_Secure_Voice_Communications_Network" title="Automatic Secure Voice Communications Network">493</a></li> <li><a href="/wiki/AN/DRC-8_Emergency_Rocket_Communications_System" title="AN/DRC-8 Emergency Rocket Communications System">494</a></li> <li>495 <ul><li><a href="/w/index.php?title=IFF_Mark_XII&action=edit&redlink=1" class="new" title="IFF Mark XII (page does not exist)">L (I)</a></li> <li><a href="/w/index.php?title=Command_and_Control_Information_Processing_System&action=edit&redlink=1" class="new" title="Command and Control Information Processing System (page does not exist)">L (II)</a></li></ul></li> <li><a href="/wiki/United_States_Space_Surveillance_Network" title="United States Space Surveillance Network">496</a></li> <li>497 <ul><li><a href="/w/index.php?title=SS-497A&action=edit&redlink=1" class="new" title="SS-497A (page does not exist)">A</a></li> <li><a href="/w/index.php?title=Automatic_Digital_Switching_System&action=edit&redlink=1" class="new" title="Automatic Digital Switching System (page does not exist)">L (I)</a></li> <li><a href="/wiki/United_States_national_missile_defense" title="United States national missile defense">L</a></li></ul></li> <li>498 <ul><li><a href="/w/index.php?title=SS-498A&action=edit&redlink=1" class="new" title="SS-498A (page does not exist)">A</a></li> <li><a href="/wiki/Lockheed_C-130_Hercules" title="Lockheed C-130 Hercules">C</a></li> <li><a href="/w/index.php?title=Strategic_Communications_System&action=edit&redlink=1" class="new" title="Strategic Communications System (page does not exist)">D</a></li> <li><a href="/wiki/Military_Air_Transport_Service" title="Military Air Transport Service">E</a></li> <li><a href="/wiki/Milstar" title="Milstar">L</a></li></ul></li> <li>499 <ul><li><a href="/w/index.php?title=SS-499A&action=edit&redlink=1" class="new" title="SS-499A (page does not exist)">A</a></li> <li><a href="/w/index.php?title=SS-499C&action=edit&redlink=1" class="new" title="SS-499C (page does not exist)">C</a></li> <li><a href="/w/index.php?title=SS-499D&action=edit&redlink=1" class="new" title="SS-499D (page does not exist)">D</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">500–599</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="/w/index.php?title=Ground_Communication_Product_Group&action=edit&redlink=1" class="new" title="Ground Communication Product Group (page does not exist)">500</a></li> <li><span class="tmp-color" style="color:grey">501–519</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=OS-520B&action=edit&redlink=1" class="new" title="OS-520B (page does not exist)">520</a></li> <li><span class="tmp-color" style="color:grey">521–529</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=OS-530A&action=edit&redlink=1" class="new" title="OS-530A (page does not exist)">530</a></li> <li><span class="tmp-color" style="color:grey">531–541</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=System_542N&action=edit&redlink=1" class="new" title="System 542N (page does not exist)">542</a></li> <li><span class="tmp-color" style="color:grey">543–549</span><sup><small>1</small></sup></li> <li>550 <ul><li><a href="/w/index.php?title=OS-550A&action=edit&redlink=1" class="new" title="OS-550A (page does not exist)">A</a></li> <li><a href="/w/index.php?title=OS-550E&action=edit&redlink=1" class="new" title="OS-550E (page does not exist)">E</a></li></ul></li> <li><span class="tmp-color" style="color:grey">551–559</span><sup><small>1</small></sup></li> <li>560 <ul><li><a href="/w/index.php?title=OS-560A&action=edit&redlink=1" class="new" title="OS-560A (page does not exist)">A</a></li> <li><a href="/w/index.php?title=OS-560F&action=edit&redlink=1" class="new" title="OS-560F (page does not exist)">F</a></li></ul></li> <li><span class="tmp-color" style="color:grey">561–569</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=OS-570A&action=edit&redlink=1" class="new" title="OS-570A (page does not exist)">570</a></li> <li><span class="tmp-color" style="color:grey">571–579</span><sup><small>1</small></sup></li> <li>580 <ul><li><a href="/w/index.php?title=OS-580A&action=edit&redlink=1" class="new" title="OS-580A (page does not exist)">A</a></li> <li><a href="/w/index.php?title=OS-580E&action=edit&redlink=1" class="new" title="OS-580E (page does not exist)">E</a></li></ul></li> <li><span class="tmp-color" style="color:grey">581–589</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=System_590K&action=edit&redlink=1" class="new" title="System 590K (page does not exist)">590</a></li> <li><a href="/wiki/GBU-15" title="GBU-15">591</a></li> <li><a href="/w/index.php?title=System_592K&action=edit&redlink=1" class="new" title="System 592K (page does not exist)">592</a></li> <li><span class="tmp-color" style="color:grey">593–599</span><sup><small>1</small></sup></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">600–699</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="/w/index.php?title=RS-600A&action=edit&redlink=1" class="new" title="RS-600A (page does not exist)">600</a></li> <li>601 <ul><li><a href="/wiki/Lockheed_X-7" title="Lockheed X-7">A</a></li> <li><a href="/w/index.php?title=Advanced_Aerospace_Offensive_System&action=edit&redlink=1" class="new" title="Advanced Aerospace Offensive System (page does not exist)">L</a></li></ul></li> <li>602 <ul><li><a href="/wiki/Bell_XV-3" title="Bell XV-3">A</a></li> <li><a href="/w/index.php?title=Advanced_Aerospace_Defensive_System&action=edit&redlink=1" class="new" title="Advanced Aerospace Defensive System (page does not exist)">L</a></li></ul></li> <li>603 <ul><li><a href="/wiki/Ryan_X-13_Vertijet" title="Ryan X-13 Vertijet">A</a></li> <li><a href="/w/index.php?title=Tactical_Forces_System&action=edit&redlink=1" class="new" title="Tactical Forces System (page does not exist)">L</a></li></ul></li> <li><a href="/w/index.php?title=RS-604A&action=edit&redlink=1" class="new" title="RS-604A (page does not exist)">604</a></li> <li><a href="/wiki/North_American_X-15" title="North American X-15">605</a></li> <li><a href="/wiki/Avro_Canada_VZ-9_Avrocar" title="Avro Canada VZ-9 Avrocar">606</a></li> <li><a href="/wiki/Hiller_X-18" title="Hiller X-18">607</a></li> <li><span class="tmp-color" style="color:grey">608</span><sup><small>1</small></sup></li> <li><a href="/wiki/Scout_(rocket_family)" title="Scout (rocket family)">609</a></li> <li><span class="tmp-color" style="color:grey">610</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">611</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">612</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">613</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=RS-614A&action=edit&redlink=1" class="new" title="RS-614A (page does not exist)">614</a></li> <li><span class="tmp-color" style="color:grey">615</span><sup><small>1</small></sup></li> <li><a href="/wiki/Minimum_Essential_Emergency_Communications_Network" title="Minimum Essential Emergency Communications Network">616</a></li> <li><span class="tmp-color" style="color:grey">617</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=RS-618A&action=edit&redlink=1" class="new" title="RS-618A (page does not exist)">618</a></li> <li><span class="tmp-color" style="color:grey">619</span><sup><small>1</small></sup></li> <li><a href="/wiki/Boeing_X-20_Dyna-Soar" title="Boeing X-20 Dyna-Soar">620</a></li> <li>621 <ul><li><a href="/wiki/Project_SAINT" title="Project SAINT">A/B (I)</a></li> <li><a href="/w/index.php?title=Integrated_NavSat/Inertial_Test_System&action=edit&redlink=1" class="new" title="Integrated NavSat/Inertial Test System (page does not exist)">B (II)</a></li></ul></li> <li><a href="/wiki/CORONA_(satellite)" title="CORONA (satellite)">622</a></li> <li><a href="/w/index.php?title=Large_Solid-Propellant_Launch_Vehicle_Rocket_Motor&action=edit&redlink=1" class="new" title="Large Solid-Propellant Launch Vehicle Rocket Motor (page does not exist)">623</a></li> <li><a href="/wiki/Titan_(rocket_family)" title="Titan (rocket family)">624</a></li> <li><a href="/w/index.php?title=RS-625A&action=edit&redlink=1" class="new" title="RS-625A (page does not exist)">625</a></li> <li><span class="tmp-color" style="color:grey">626</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=Advanced_Ballistic_Reentry_System&action=edit&redlink=1" class="new" title="Advanced Ballistic Reentry System (page does not exist)">627</a></li> <li><span class="tmp-color" style="color:grey">628</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">629</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">630</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">631</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=AN/AAR-44&action=edit&redlink=1" class="new" title="AN/AAR-44 (page does not exist)">632</a></li> <li><a href="/w/index.php?title=Stellar_Inertial_Doppler_System&action=edit&redlink=1" class="new" title="Stellar Inertial Doppler System (page does not exist)">633</a></li> <li>634 <ul><li><a href="/wiki/Cobra_Dane" title="Cobra Dane">A</a></li> <li><a href="/wiki/Joint_Tactical_Information_Distribution_System" title="Joint Tactical Information Distribution System">B</a></li></ul></li> <li><a href="/w/index.php?title=AN/ALE-24&action=edit&redlink=1" class="new" title="AN/ALE-24 (page does not exist)">635</a></li> <li><span class="tmp-color" style="color:grey">636</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">637</span><sup><small>1</small></sup></li> <li><a href="/wiki/GAM-87_Skybolt" title="GAM-87 Skybolt">638</a></li> <li><a href="/w/index.php?title=AN/ALE-40&action=edit&redlink=1" class="new" title="AN/ALE-40 (page does not exist)">639</a></li> <li><a href="/w/index.php?title=AN/ALE-45&action=edit&redlink=1" class="new" title="AN/ALE-45 (page does not exist)">640</a></li> <li><a href="/wiki/AN/ALE-47" title="AN/ALE-47">641</a></li> <li><a href="/w/index.php?title=Seek_Point&action=edit&redlink=1" class="new" title="Seek Point (page does not exist)">642</a></li> <li><a href="/w/index.php?title=AN/ALQ-184&action=edit&redlink=1" class="new" title="AN/ALQ-184 (page does not exist)">643</a></li> <li><span class="tmp-color" style="color:grey">644</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">645</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">646</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">647</span><sup><small>1</small></sup></li> <li>648 <ul><li><a href="/wiki/RM-81_Agena" title="RM-81 Agena">A</a></li> <li><a href="/w/index.php?title=System_648D&action=edit&redlink=1" class="new" title="System 648D (page does not exist)">D</a></li> <li><a href="/wiki/AN/ALQ-99" title="AN/ALQ-99">P</a></li></ul></li> <li>649 <ul><li><a href="/w/index.php?title=RS-649A&action=edit&redlink=1" class="new" title="RS-649A (page does not exist)">A</a></li> <li><a href="/w/index.php?title=RS-649B&action=edit&redlink=1" class="new" title="RS-649B (page does not exist)">B</a></li> <li><a href="/w/index.php?title=WS-649C&action=edit&redlink=1" class="new" title="WS-649C (page does not exist)">C</a></li> <li><a href="/w/index.php?title=RS-649D&action=edit&redlink=1" class="new" title="RS-649D (page does not exist)">D</a></li> <li><a href="/w/index.php?title=Space_Counterweapons_System&action=edit&redlink=1" class="new" title="Space Counterweapons System (page does not exist)">E</a></li> <li><a href="/w/index.php?title=Satellite_Inspection_System&action=edit&redlink=1" class="new" title="Satellite Inspection System (page does not exist)">F</a></li> <li><a href="/w/index.php?title=Space_Combat_Weapon_System&action=edit&redlink=1" class="new" title="Space Combat Weapon System (page does not exist)">L</a></li> <li><a href="/wiki/Dash_10" class="mw-redirect" title="Dash 10">P</a></li></ul></li> <li><a href="/w/index.php?title=RS-650A&action=edit&redlink=1" class="new" title="RS-650A (page does not exist)">650</a></li> <li><a href="/w/index.php?title=System_651A&action=edit&redlink=1" class="new" title="System 651A (page does not exist)">651</a></li> <li><a href="/w/index.php?title=AN/ALQ-122&action=edit&redlink=1" class="new" title="AN/ALQ-122 (page does not exist)">652</a></li> <li><span class="tmp-color" style="color:grey">653</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">654</span><sup><small>1</small></sup></li> <li>655 <ul><li><a href="/w/index.php?title=RS-655A&action=edit&redlink=1" class="new" title="RS-655A (page does not exist)">A (I)</a></li> <li><a href="/w/index.php?title=Low_Altutude_Short_Range_Missile&action=edit&redlink=1" class="new" title="Low Altutude Short Range Missile (page does not exist)">A (II)</a></li> <li><a href="/w/index.php?title=AN/ALQ-131&action=edit&redlink=1" class="new" title="AN/ALQ-131 (page does not exist)">P</a></li></ul></li> <li><a href="/wiki/AN/ALQ-135" title="AN/ALQ-135">656</a></li> <li><span class="tmp-color" style="color:grey">657</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">658</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">659</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=AN/ALQ-155&action=edit&redlink=1" class="new" title="AN/ALQ-155 (page does not exist)">660</a></li> <li><a href="/w/index.php?title=AN/ALQ-161&action=edit&redlink=1" class="new" title="AN/ALQ-161 (page does not exist)">661</a></li> <li><span class="tmp-color" style="color:grey">662</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">663</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=AN/ALQ-172&action=edit&redlink=1" class="new" title="AN/ALQ-172 (page does not exist)">664</a></li> <li>665 <ul><li><a href="/w/index.php?title=RS-665A&action=edit&redlink=1" class="new" title="RS-665A (page does not exist)">A (I)</a></li> <li><a href="/w/index.php?title=Multi-Sensor_Airborne_Reconnaissance/Strike_System&action=edit&redlink=1" class="new" title="Multi-Sensor Airborne Reconnaissance/Strike System (page does not exist)">A (II)</a></li></ul></li> <li>666 <ul><li><a href="/w/index.php?title=Integrated_NavSat/Inertial_Test_System&action=edit&redlink=1" class="new" title="Integrated NavSat/Inertial Test System (page does not exist)">A</a></li> <li><a href="/w/index.php?title=AN/ALQ-184&action=edit&redlink=1" class="new" title="AN/ALQ-184 (page does not exist)">C/P</a></li></ul></li> <li><a href="/w/index.php?title=System_667A&action=edit&redlink=1" class="new" title="System 667A (page does not exist)">667</a></li> <li><a href="/w/index.php?title=System_668A&action=edit&redlink=1" class="new" title="System 668A (page does not exist)">668</a></li> <li><span class="tmp-color" style="color:grey">669</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=System_670B&action=edit&redlink=1" class="new" title="System 670B (page does not exist)">670</a></li> <li><span class="tmp-color" style="color:grey">671</span><sup><small>1</small></sup></li> <li>672 <ul><li><a href="/w/index.php?title=Advanced_ICBM_Technology_Program&action=edit&redlink=1" class="new" title="Advanced ICBM Technology Program (page does not exist)">A</a></li> <li><a href="/w/index.php?title=AN/ALR-56&action=edit&redlink=1" class="new" title="AN/ALR-56 (page does not exist)">M/P</a></li></ul></li> <li><span class="tmp-color" style="color:grey">673</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=AN/ALR-69&action=edit&redlink=1" class="new" title="AN/ALR-69 (page does not exist)">674</a></li> <li><a href="/w/index.php?title=RS-675A&action=edit&redlink=1" class="new" title="RS-675A (page does not exist)">675</a></li> <li><span class="tmp-color" style="color:grey">676</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">677</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">678</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=System_679A&action=edit&redlink=1" class="new" title="System 679A (page does not exist)">679</a></li> <li><a href="/w/index.php?title=Survivable_Flight_Control_System&action=edit&redlink=1" class="new" title="Survivable Flight Control System (page does not exist)">680</a></li> <li>681 <ul><li><a href="/w/index.php?title=System_681D&action=edit&redlink=1" class="new" title="System 681D (page does not exist)">D</a></li> <li><a href="/w/index.php?title=Base_Installation_Security_System&action=edit&redlink=1" class="new" title="Base Installation Security System (page does not exist)">E</a></li></ul></li> <li><span class="tmp-color" style="color:grey">682</span><sup><small>1</small></sup></li> <li>683 <ul><li><a href="/wiki/Vela_(satellite)" title="Vela (satellite)">A</a></li> <li><a href="/w/index.php?title=Tactical_Air_Control_System&action=edit&redlink=1" class="new" title="Tactical Air Control System (page does not exist)">J</a></li> <li><a href="/wiki/Boeing_T-43" title="Boeing T-43">V</a></li></ul></li> <li><span class="tmp-color" style="color:grey">684</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=RS-685A&action=edit&redlink=1" class="new" title="RS-685A (page does not exist)">685</a></li> <li><a href="/w/index.php?title=Aircraft_Flight_Simulation_Complex&action=edit&redlink=1" class="new" title="Aircraft Flight Simulation Complex (page does not exist)">686</a></li> <li>687 <ul><li><a href="/w/index.php?title=TACSATCOM&action=edit&redlink=1" class="new" title="TACSATCOM (page does not exist)">J</a></li> <li><a href="/wiki/General_Dynamics_F-16_Fighting_Falcon" title="General Dynamics F-16 Fighting Falcon">P</a></li></ul></li> <li><span class="tmp-color" style="color:grey">688</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">689</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=System_690K&action=edit&redlink=1" class="new" title="System 690K (page does not exist)">690</a></li> <li>691 <ul><li><a href="/wiki/AGM-86_ALCM" title="AGM-86 ALCM">C</a></li> <li><a href="/w/index.php?title=System_691X&action=edit&redlink=1" class="new" title="System 691X (page does not exist)">X</a></li> <li><a href="/wiki/Worldwide_Military_Command_and_Control_System" title="Worldwide Military Command and Control System">Z</a></li></ul></li> <li><span class="tmp-color" style="color:grey">692</span><sup><small>1</small></sup></li> <li><a href="/wiki/Ryan_X-13_Vertijet" title="Ryan X-13 Vertijet">693</a></li> <li><span class="tmp-color" style="color:grey">694</span><sup><small>1</small></sup></li> <li>695 <ul><li><a href="/wiki/RAND_Corporation" title="RAND Corporation">A</a></li> <li><a href="/wiki/ANSER" title="ANSER">B</a></li> <li><a href="/wiki/Itek" title="Itek">C</a></li> <li><a href="/wiki/MIT_Lincoln_Laboratory" title="MIT Lincoln Laboratory">L</a></li> <li><a href="/wiki/SM-65_Atlas" title="SM-65 Atlas">N</a></li> <li><a href="/wiki/SM-68_Titan" title="SM-68 Titan">P</a></li> <li><a href="/wiki/PGM-17_Thor" title="PGM-17 Thor">Q</a></li> <li><a href="/wiki/LGM-30_Minuteman" title="LGM-30 Minuteman">R</a></li> <li><a href="/wiki/Samos_(satellite)" title="Samos (satellite)">S (I)</a></li> <li><a href="/wiki/Missile_Defense_Alarm_System" title="Missile Defense Alarm System">S (II)</a></li></ul></li> <li><span class="tmp-color" style="color:grey">696</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">697</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">698</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">699</span><sup><small>1</small></sup></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">700–799</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><span class="tmp-color" style="color:grey">700–735</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=AN/APR-46&action=edit&redlink=1" class="new" title="AN/APR-46 (page does not exist)">736</a></li> <li><span class="tmp-color" style="color:grey">737</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">738</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">739</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">740</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=Tactical_Electronic_Warfare_System&action=edit&redlink=1" class="new" title="Tactical Electronic Warfare System (page does not exist)">741</a></li> <li><a href="/wiki/LANTIRN" title="LANTIRN">742</a></li> <li><a href="/wiki/LANTIRN" title="LANTIRN">743</a></li> <li><span class="tmp-color" style="color:grey">744</span><sup><small>1</small></sup></li> <li><a href="/wiki/Military_Satellite_Communications_Directorate" title="Military Satellite Communications Directorate">745</a></li> <li><span class="tmp-color" style="color:grey">746–753</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=AN/ALM-234&action=edit&redlink=1" class="new" title="AN/ALM-234 (page does not exist)">754</a></li> <li><span class="tmp-color" style="color:grey">755–799</span><sup><small>1</small></sup></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">800–899</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><span class="tmp-color" style="color:grey">800</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">801</span><sup><small>1</small></sup></li> <li>802 <ul><li><a href="/w/index.php?title=System_802L&action=edit&redlink=1" class="new" title="System 802L (page does not exist)">L (I)</a></li> <li><a href="/w/index.php?title=High_Frequency_Global_Communication_System&action=edit&redlink=1" class="new" title="High Frequency Global Communication System (page does not exist)">L (II)</a></li></ul></li> <li><span class="tmp-color" style="color:grey">803</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">804</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">805</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=Range_Threat_System&action=edit&redlink=1" class="new" title="Range Threat System (page does not exist)">806</a></li> <li><a href="/wiki/Defense_Support_Program" title="Defense Support Program">807</a></li> <li><span class="tmp-color" style="color:grey">808–816</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=Technical_Sensor_Collection_Systems&action=edit&redlink=1" class="new" title="Technical Sensor Collection Systems (page does not exist)">817</a></li> <li><span class="tmp-color" style="color:grey">818</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">819</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">820</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">821</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">822</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=System_823L&action=edit&redlink=1" class="new" title="System 823L (page does not exist)">823</a></li> <li><span class="tmp-color" style="color:grey">824–831</span><sup><small>1</small></sup></li> <li><a href="/wiki/Defense_Meteorological_Satellite_Program" title="Defense Meteorological Satellite Program">832</a></li> <li><span class="tmp-color" style="color:grey">833</span><sup><small>1</small></sup></li> <li><a href="/wiki/Global_Positioning_System" title="Global Positioning System">834</a></li> <li><span class="tmp-color" style="color:grey">835–845</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=Range_Threat_System&action=edit&redlink=1" class="new" title="Range Threat System (page does not exist)">846</a></li> <li><span class="tmp-color" style="color:grey">847–899</span><sup><small>1</small></sup></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">900–999</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><span class="tmp-color" style="color:grey">900–951</span><sup><small>1</small></sup></li> <li><a href="/wiki/Douglas_C-47_Skytrain" title="Douglas C-47 Skytrain">952</a></li> <li><span class="tmp-color" style="color:grey">853</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">854</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">855</span><sup><small>1</small></sup></li> <li><a href="/wiki/Douglas_DC-6" title="Douglas DC-6">956</a></li> <li><span class="tmp-color" style="color:grey">957–967</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=Pacer_Harmony&action=edit&redlink=1" class="new" title="Pacer Harmony (page does not exist)">968</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div><sup>1</sup> Unknown or not assigned</div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=AN/URC-117_Ground_Wave_Emergency_Network&oldid=1252064947">https://en.wikipedia.org/w/index.php?title=AN/URC-117_Ground_Wave_Emergency_Network&oldid=1252064947</a>"</div></div> <div 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