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<span>Design</span> </div> </a> <ul id="toc-Design-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Applications" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Applications"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Applications</span> </div> </a> <ul id="toc-Applications-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Specifications_(T406)" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Specifications_(T406)"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Specifications (T406)</span> </div> </a> <button aria-controls="toc-Specifications_(T406)-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Specifications (T406) subsection</span> </button> <ul id="toc-Specifications_(T406)-sublist" class="vector-toc-list"> <li id="toc-General_characteristics" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#General_characteristics"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.1</span> <span>General characteristics</span> </div> </a> <ul id="toc-General_characteristics-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Components" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Components"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.2</span> <span>Components</span> </div> </a> <ul id="toc-Components-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Performance" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Performance"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.3</span> <span>Performance</span> </div> </a> <ul id="toc-Performance-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-See_also" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#See_also"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>See also</span> </div> </a> <ul id="toc-See_also-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Further_reading" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Further_reading"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>Further reading</span> </div> </a> <ul id="toc-Further_reading-sublist" class="vector-toc-list"> 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<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">Rolls-Royce North America turboshaft aircraft engine (1986)</div> <p class="mw-empty-elt"> </p> <table class="infobox" style="width:25.5em;border-spacing:2px;"> <tbody><tr> <th colspan="2" style="text-align: center; font-size: 125%;">T406 / AE 1107 </th></tr> <tr> <td colspan="2" style="text-align: center;"><span typeof="mw:File"><a href="/wiki/File:V-22_main_engine_closeup.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d5/V-22_main_engine_closeup.jpg/300px-V-22_main_engine_closeup.jpg" decoding="async" width="300" height="275" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d5/V-22_main_engine_closeup.jpg/450px-V-22_main_engine_closeup.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d5/V-22_main_engine_closeup.jpg/600px-V-22_main_engine_closeup.jpg 2x" data-file-width="1607" data-file-height="1472" /></a></span> </td></tr> <tr> <td colspan="2" style="border-bottom: 1px solid #aaa;text-align:center;">A T406 engine nacelle on a V-22 </td></tr> <tr> <th>Type </th> <td><a href="/wiki/Turboshaft" title="Turboshaft">Turboshaft</a> </td></tr> <tr> <th><span class="nowrap">National origin</span> </th> <td>United States </td></tr> <tr> <th>Manufacturer </th> <td><a href="/wiki/Allison_Engine_Company" title="Allison Engine Company">Allison Engine Company</a> <br /> <a href="/wiki/Rolls-Royce_Holdings" title="Rolls-Royce Holdings">Rolls-Royce Holdings</a> </td></tr> <tr> <th>First run </th> <td>late 1986<sup id="cite_ref-FI19870411_1-0" class="reference"><a href="#cite_note-FI19870411-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <th><span class="nowrap">Major applications</span> </th> <td><a href="/wiki/Bell_Boeing_V-22_Osprey" title="Bell Boeing V-22 Osprey">Bell Boeing V-22 Osprey</a> </td></tr> <tr> <th><span class="nowrap">Number built</span> </th> <td>860 (2018)<sup id="cite_ref-UPI20180601_2-0" class="reference"><a href="#cite_note-UPI20180601-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <th><span class="nowrap">Developed from</span> </th> <td><a href="/wiki/Allison_T56" title="Allison T56">Allison T56</a>/<a href="/wiki/Allison_T701" class="mw-redirect" title="Allison T701">T701</a> </td></tr> <tr> <th><span class="nowrap">Developed into</span> </th> <td><a href="/wiki/Rolls-Royce_AE_2100" title="Rolls-Royce AE 2100">Rolls-Royce AE 2100</a> <br /> <a href="/wiki/Rolls-Royce_AE_3007" title="Rolls-Royce AE 3007">Rolls-Royce AE 3007</a> </td></tr></tbody></table> <p>The <b>Rolls-Royce T406</b> (company designation <b>AE 1107</b>) is a <a href="/wiki/Turboshaft" title="Turboshaft">turboshaft</a> engine developed by <a href="/wiki/Allison_Engine_Company" title="Allison Engine Company">Allison Engine Company</a> (now part of <a href="/wiki/Rolls-Royce" title="Rolls-Royce">Rolls-Royce</a>) that powers the <a href="/wiki/Bell_Boeing_V-22_Osprey" title="Bell Boeing V-22 Osprey">Bell Boeing V-22 Osprey</a> <a href="/wiki/Tiltrotor" title="Tiltrotor">tiltrotor</a>. The engine delivers 6,000 shp (4,470 kW). </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Development">Development</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Rolls-Royce_T406&action=edit&section=1" title="Edit section: Development"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In 1982, <a href="/wiki/Allison_Engine_Company" title="Allison Engine Company">Detroit Diesel Allison</a> (DDA) prepared a new engine design to enter the <a href="/wiki/United_States_Army" title="United States Army">United States Army</a>'s Modern Technology Demonstrator Engine (MTDE) competition, which was expected to be developed into the powerplant for the <a href="/wiki/United_States_Navy" title="United States Navy">United States Navy</a>'s JVX experimental <a href="/wiki/Tiltrotor" title="Tiltrotor">tiltrotor</a> aircraft program (which would eventually become the <a href="/wiki/Bell_Boeing_V-22_Osprey" title="Bell Boeing V-22 Osprey">Bell Boeing V-22 Osprey</a>).<sup id="cite_ref-LeyesFleming579580_3-0" class="reference"><a href="#cite_note-LeyesFleming579580-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> After this engine, which DDA called the Model 580,<sup id="cite_ref-InsideIndy19830114_4-0" class="reference"><a href="#cite_note-InsideIndy19830114-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> lost the competition to <a href="/wiki/Pratt_%26_Whitney" title="Pratt & Whitney">Pratt & Whitney</a> and <a href="/wiki/General_Electric" title="General Electric">General Electric</a> in 1983, Allison was separated from Detroit Diesel as a separate division within <a href="/wiki/General_Motors" title="General Motors">General Motors</a>, and Allison's new management decided to pursue the V-22 engine contract anyway.<sup id="cite_ref-LeyesFleming579580_3-1" class="reference"><a href="#cite_note-LeyesFleming579580-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p><p>On 24 December 1985, the U.S. Navy selected Allison's engine for full-scale engine development and production on the <a href="/wiki/U.S._Marine_Corps" class="mw-redirect" title="U.S. Marine Corps">U.S. Marine Corps</a>'s V-22 Osprey.<sup id="cite_ref-UPI19851224_5-0" class="reference"><a href="#cite_note-UPI19851224-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> Before the engine was given its <a href="/wiki/United_States_military_aircraft_engine_designation" class="mw-redirect" title="United States military aircraft engine designation">United States military aircraft engine designation</a> of T406, it was known as the Model 501-M80C.<sup id="cite_ref-AWST19860317_6-0" class="reference"><a href="#cite_note-AWST19860317-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> The Navy and Allison signed a formal contract on 2 May 1986, and the first engine to test ran six months after.<sup id="cite_ref-Brussels1990_7-0" class="reference"><a href="#cite_note-Brussels1990-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p><p>The T406 is based on the <a href="/wiki/Allison_T56" title="Allison T56">Allison T56</a> turboprop from the <a href="/wiki/Lockheed_P-3_Orion" title="Lockheed P-3 Orion">P-3</a> and the <a href="/wiki/C-130" class="mw-redirect" title="C-130">C-130</a>, with the <a href="/wiki/Free-turbine_engine" class="mw-redirect" title="Free-turbine engine">free power turbine</a> of the <a href="/wiki/Allison_T701" class="mw-redirect" title="Allison T701">Allison T701</a> turboshaft from the defunct <a href="/wiki/Heavy_Lift_Helicopter_program" class="mw-redirect" title="Heavy Lift Helicopter program">Heavy Lift Helicopter program</a>. It was selected over the <a href="/wiki/Pratt_%26_Whitney" title="Pratt & Whitney">Pratt & Whitney</a> PW3000 and <a href="/wiki/General_Electric_GE27" class="mw-redirect" title="General Electric GE27">General Electric GE27</a> competing for the US Army's Modern Technology Demonstrator Engine program.<sup id="cite_ref-Flight29jul1989_8-0" class="reference"><a href="#cite_note-Flight29jul1989-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> The T406 began <a href="/wiki/Flight_testing" class="mw-redirect" title="Flight testing">flight testing</a> on 19 March 1989.<sup id="cite_ref-Chambers1991_9-0" class="reference"><a href="#cite_note-Chambers1991-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p><p>The T406/AE 1107C Liberty shares a common core with the <a href="/wiki/AE_3007" class="mw-redirect" title="AE 3007">AE 3007</a> <a href="/wiki/Turbofan" title="Turbofan">turbofan</a> and <a href="/wiki/AE_2100" class="mw-redirect" title="AE 2100">AE 2100</a> <a href="/wiki/Turboprop" title="Turboprop">turboprop</a> series of engines, both of which have sold in the thousands of copies.<sup id="cite_ref-RR20170302_10-0" class="reference"><a href="#cite_note-RR20170302-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-2300engines_11-0" class="reference"><a href="#cite_note-2300engines-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> 44-46 percent of parts are common between the T406 and the AE 3007, while about 76 percent of parts are common between the T406 and the AE 2100.<sup id="cite_ref-Weaknesses_12-0" class="reference"><a href="#cite_note-Weaknesses-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> In addition, Allison attempted to develop other types of engines based on the T406. In 1988, the company signed a <a href="/wiki/Memorandum_of_understanding" title="Memorandum of understanding">memorandum of understanding</a> (MoU) with <a href="/wiki/Messerschmitt-B%C3%B6lkow-Blohm" title="Messerschmitt-Bölkow-Blohm">Messerschmitt-Bölkow-Blohm</a> (MBB) of West Germany and the <a href="/wiki/China_National_Aero-Technology_Import_%26_Export_Corporation" title="China National Aero-Technology Import & Export Corporation">China National Aero-Technology Import & Export Corporation</a> (CATIC) to work on a version of the <a href="/wiki/MPC_75" title="MPC 75">MPC 75</a> regional aircraft to be powered by a T406-derived <a href="/wiki/Propfan" title="Propfan">propfan</a>.<sup id="cite_ref-FI19880521_13-0" class="reference"><a href="#cite_note-FI19880521-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> In 1990, Allison studied a 9,000 shp (6,700 kW) propfan powerplant driving 8.5 ft diameter (2.6 m) <a href="/wiki/Contra-rotating_propellers" title="Contra-rotating propellers">contra-rotating propellers</a> to power <a href="/wiki/Euroflag" title="Euroflag">Euroflag</a>'s proposed <a href="/wiki/Military_airlift" class="mw-redirect" title="Military airlift">military airlift</a> aircraft.<sup id="cite_ref-T406Derivatives_14-0" class="reference"><a href="#cite_note-T406Derivatives-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> Also, the MT7 gas turbines that will be used to power the <a href="/wiki/Ship-to-Shore_Connector" title="Ship-to-Shore Connector">Ship-to-Shore Connector</a> are a derived design of the T406.<sup id="cite_ref-MM20121101_15-0" class="reference"><a href="#cite_note-MM20121101-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> </p><p>Production continued by <a href="/wiki/Rolls-Royce" title="Rolls-Royce">Rolls-Royce</a> after it acquired Allison in 1995 to establish a North American subsidiary. In 2009, the <a href="/wiki/Government_Accountability_Office" title="Government Accountability Office">Government Accountability Office</a> (GAO) found that the engines failed after less than 400 hours of service, as compared to the estimated life of 500–600 hours.<sup id="cite_ref-MCT20130813_16-0" class="reference"><a href="#cite_note-MCT20130813-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> Multiple updates to the engine platform in 2012-2013 have increased the lifespan significantly. </p><p>In April 2012, the <a href="/wiki/United_States_Department_of_Defense" title="United States Department of Defense">United States Department of Defense</a> (DoD) ordered 70 AE 1107C engines for the Osprey, with options for up to 268 engines.<sup id="cite_ref-rrann_17-0" class="reference"><a href="#cite_note-rrann-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup> </p><p>Rolls-Royce introduced a Block 3 turbine upgrade, which replaced the old turbine design with sturdier and more efficient components. The upgrade increased engine power by at least 17 percent, and the engine achieved a power output of over 8,800 shp (6,600 kW) during ground testing.<sup id="cite_ref-FI20140918_18-0" class="reference"><a href="#cite_note-FI20140918-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup> The Block 3 turbine became standard in July 2012 for new production models. By September 2012, all older engines that were undergoing regular maintenance were systematically upgraded to the Block 3 turbine. </p><p>Engines with a future planned block 4 upgrade would be expected to deliver nearly 10,000 horsepower (7,500 kilowatts).<sup id="cite_ref-BoostsPower20130916_19-0" class="reference"><a href="#cite_note-BoostsPower20130916-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup> </p><p>An ongoing problem with the engines was their propensity for surging or stalling with 68 incidents reported between 2003 and October 2016 though this rate had reduced after the introduction of the Block 3 engine version. The US Naval Air Systems Command intends to award Rolls-Royce two contracts to examine the effectiveness of proposed reliability improvements, the first is a software tweak to the engine management software for the compressor guide vanes that internal testing showed could improve surge margin by 0.8% at sea level and 3% at altitude. The second is the discovery that a temperature sensor at the inlet of the compressor sends incorrect readings leading to 2.5% out of 4% steady power shortfall at the compressors correct rotational speed again correctable with a software fix. In addition, Bell Boeing is developing an inlet barrier system to reduce the power loss from the engine ingesting dust and sand particles to supplement the engines existing centrifugal based particle separators as they can only do so much to improve the quality of air they receive.<sup id="cite_ref-StallFixes_20-0" class="reference"><a href="#cite_note-StallFixes-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup> </p><p>In October 2021, Bell and Rolls-Royce jointly announced that the <a href="/wiki/Bell_V-280_Valor" title="Bell V-280 Valor">Bell V-280 Valor</a> powerplant would switch from the General Electric T64 turboshaft used on the prototype to a derivative of the 1107C used on the Osprey which would be named the 1107F. At the same time as increasing power from 5,000 to 7,000 horsepower, the 1107C is a known element in tiltrotor aircraft with its two decades of prior use which lowers sustainment costs and de-risks the project.<sup id="cite_ref-21" class="reference"><a href="#cite_note-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Design">Design</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Rolls-Royce_T406&action=edit&section=2" title="Edit section: Design"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The V-22's T406 powerplants are housed in wing-tip tilting nacelles, allowing the distinctive flight characteristics of the V-22. For take off and landing the nacelles are directed vertically (90° to fuselage), while for forward flight they are rotated parallel to fuselage. The engine has been considered as a cost-effective upgrade for existing heavylift helicopters such as the <a href="/wiki/CH-47_Chinook" class="mw-redirect" title="CH-47 Chinook">CH-47 Chinook</a> and the <a href="/wiki/CH-53_Stallion" class="mw-redirect" title="CH-53 Stallion">CH-53</a>.<sup id="cite_ref-RR-Liberty_22-0" class="reference"><a href="#cite_note-RR-Liberty-22"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Applications">Applications</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Rolls-Royce_T406&action=edit&section=3" title="Edit section: Applications"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Aurora_XV-24_LightningStrike" title="Aurora XV-24 LightningStrike">Aurora XV-24 LightningStrike</a> (1107C)<sup id="cite_ref-Engineer20170407_23-0" class="reference"><a href="#cite_note-Engineer20170407-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Bell_Boeing_V-22_Osprey" title="Bell Boeing V-22 Osprey">Bell Boeing V-22 Osprey</a> (1107C Liberty)</li> <li><a href="/wiki/Bell_V-280_Valor" title="Bell V-280 Valor">Bell V-280 Valor</a> (1107F)</li> <li>US Navy <a href="/wiki/Ship-to-Shore_Connector" title="Ship-to-Shore Connector">Ship-to-Shore Connector</a> Landing Craft (MT7)</li></ul> <div class="mw-heading mw-heading2"><h2 id="Specifications_(T406)"><span id="Specifications_.28T406.29"></span>Specifications (T406)</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Rolls-Royce_T406&action=edit&section=4" title="Edit section: Specifications (T406)"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading4"><h4 id="General_characteristics">General characteristics</h4></div> <ul><li><b>Type:</b> <a href="/wiki/Free-turbine_turboshaft" title="Free-turbine turboshaft">Free-turbine turboshaft</a></li> <li><b>Length:</b> 78.1 in (1,980 mm)</li> <li><b>Diameter:</b> 34.2 in (890 mm)</li> <li><b>Dry weight:</b> 971 lb (440 kg)</li></ul> <div class="mw-heading mw-heading4"><h4 id="Components">Components</h4></div> <ul><li><b>Compressor:</b> 14-stage high pressure <a href="/wiki/Axial_compressor" title="Axial compressor">axial compressor</a>, variable geometry vanes in the inlet and the first 5 stages<sup id="cite_ref-Chambers1991_9-1" class="reference"><a href="#cite_note-Chambers1991-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup></li> <li><b><a href="/wiki/Combustor" title="Combustor">Combustors</a>:</b> Diffuser <a href="/wiki/Annular_combustor" class="mw-redirect" title="Annular combustor">annular combustor</a> with 16 air-blast fuel nozzles and 2 igniters<sup id="cite_ref-Chambers1991_9-2" class="reference"><a href="#cite_note-Chambers1991-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup></li> <li><b><a href="/wiki/Turbine" title="Turbine">Turbine</a>:</b> 2-stage high pressure turbine with air-cooling in the first and second-stage vanes and the first-stage blade; 2-stage shrouded power turbine with uncooled vanes and blades<sup id="cite_ref-Chambers1991_9-3" class="reference"><a href="#cite_note-Chambers1991-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup></li></ul> <div class="mw-heading mw-heading4"><h4 id="Performance">Performance</h4></div> <ul><li><b>Maximum power output:</b> 6,150 shp (4,586 kW)</li> <li><b><a href="/wiki/Overall_pressure_ratio" title="Overall pressure ratio">Overall pressure ratio</a>:</b> 16.7:1</li> <li><b>Turbine inlet temperature:</b> 1,209 °C (2,208 °F; 1,482 K; 2,668 °R)<sup id="cite_ref-Brussels1990_7-1" class="reference"><a href="#cite_note-Brussels1990-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></li> <li><b><a href="/wiki/Thrust_specific_fuel_consumption" class="mw-redirect" title="Thrust specific fuel consumption">Specific fuel consumption</a>:</b> 0.426 lb/shp/hr (0.259 kg/kW/hr) SFC,<sup id="cite_ref-jet-engines.net_24-0" class="reference"><a href="#cite_note-jet-engines.net-24"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup> efficiency 32% <sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (December 2020)">citation needed</span></a></i>]</sup></li> <li><b><a href="/wiki/Power-to-weight_ratio" title="Power-to-weight ratio">Power-to-weight ratio</a>:</b> 6.33 shp/lb (10.4 kW/kg)</li></ul> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Rolls-Royce_T406&action=edit&section=5" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1259569809">.mw-parser-output .portalbox{padding:0;margin:0.5em 0;display:table;box-sizing:border-box;max-width:175px;list-style:none}.mw-parser-output .portalborder{border:1px solid var(--border-color-base,#a2a9b1);padding:0.1em;background:var(--background-color-neutral-subtle,#f8f9fa)}.mw-parser-output .portalbox-entry{display:table-row;font-size:85%;line-height:110%;height:1.9em;font-style:italic;font-weight:bold}.mw-parser-output .portalbox-image{display:table-cell;padding:0.2em;vertical-align:middle;text-align:center}.mw-parser-output .portalbox-link{display:table-cell;padding:0.2em 0.2em 0.2em 0.3em;vertical-align:middle}@media(min-width:720px){.mw-parser-output .portalleft{clear:left;float:left;margin:0.5em 1em 0.5em 0}.mw-parser-output .portalright{clear:right;float:right;margin:0.5em 0 0.5em 1em}}</style><ul role="navigation" aria-label="Portals" class="noprint portalbox portalborder portalright"> <li class="portalbox-entry"><span class="portalbox-image"><span class="noviewer" typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/6/68/Aviacionavion.png/28px-Aviacionavion.png" decoding="async" width="28" height="28" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/68/Aviacionavion.png/42px-Aviacionavion.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/68/Aviacionavion.png/56px-Aviacionavion.png 2x" data-file-width="1600" data-file-height="1600" /></span></span></span><span class="portalbox-link"><a href="/wiki/Portal:Aviation" title="Portal:Aviation">Aviation portal</a></span></li></ul> <p> <b>Related development</b> </p> <ul><li><a href="/wiki/Allison_T56" title="Allison T56">Allison T56</a>/<a href="/wiki/Allison_T701" class="mw-redirect" title="Allison T701">T701</a></li> <li><a href="/wiki/Rolls-Royce_AE_2100" title="Rolls-Royce AE 2100">Rolls-Royce AE 2100</a></li> <li><a href="/wiki/Rolls-Royce_AE_3007" title="Rolls-Royce AE 3007">Rolls-Royce AE 3007</a></li></ul> <p> <b>Comparable engines</b> </p> <ul><li><a href="/wiki/General_Electric_GE38" title="General Electric GE38">General Electric GE38</a></li> <li><a href="/wiki/Lycoming_T55" class="mw-redirect" title="Lycoming T55">Lycoming T55</a></li></ul> <p><b>Related lists</b> </p> <ul><li><a href="/wiki/List_of_aircraft_engines" title="List of aircraft engines">List of aircraft engines</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=Rolls-Royce_T406&action=edit&section=6" 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"> <div class="mw-references-wrap mw-references-columns"><ol class="references"> <li id="cite_note-FI19870411-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-FI19870411_1-0">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation magazine cs1"><a rel="nofollow" class="external text" href="https://www.flightglobal.com/pdfarchive/view/1987/1987%20-%200092.html">"Taking the turboshaft honours"</a>. <i>Flight International</i>. 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Archived from <a rel="nofollow" class="external text" href="http://www.defensenews.com/article/20130916/DEFREG02/309160009/Rolls-Royce-Boosts-Power-V-22-Engines">the original</a> on 20 September 2013.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Defense+News&rft.atitle=Rolls-Royce+boosts+power+for+V-22+engines&rft.date=2013-09-16&rft.aulast=Mehta&rft.aufirst=Aaron&rft_id=http%3A%2F%2Fwww.defensenews.com%2Farticle%2F20130916%2FDEFREG02%2F309160009%2FRolls-Royce-Boosts-Power-V-22-Engines&rfr_id=info%3Asid%2Fen.wikipedia.org%3ARolls-Royce+T406" class="Z3988"></span></span> </li> <li id="cite_note-StallFixes-20"><span class="mw-cite-backlink"><b><a href="#cite_ref-StallFixes_20-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFTrimble2017" class="citation news cs1">Trimble, Stephen (18 January 2017). <a rel="nofollow" class="external text" href="https://www.flightglobal.com/news/articles/rolls-royce-studies-two-new-stall-fixes-for-v-22-eng-433309/">"Rolls-Royce studies two new stall fixes for V-22 engines"</a>. <i><a href="/wiki/Flightglobal" class="mw-redirect" title="Flightglobal">Flightglobal</a></i>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Flightglobal&rft.atitle=Rolls-Royce+studies+two+new+stall+fixes+for+V-22+engines&rft.date=2017-01-18&rft.aulast=Trimble&rft.aufirst=Stephen&rft_id=https%3A%2F%2Fwww.flightglobal.com%2Fnews%2Farticles%2Frolls-royce-studies-two-new-stall-fixes-for-v-22-eng-433309%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ARolls-Royce+T406" class="Z3988"></span></span> </li> <li id="cite_note-21"><span class="mw-cite-backlink"><b><a href="#cite_ref-21">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://www.defenseone.com/business/2021/10/bell-picks-rolls-royce-engine-v-280-valor-army-black-hawk-replacement-contest/185953/">Bell Picks Rolls-Royce Engine for V-280 Valor in Army Black Hawk Replacement Contest</a></span> </li> <li id="cite_note-RR-Liberty-22"><span class="mw-cite-backlink"><b><a href="#cite_ref-RR-Liberty_22-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.rolls-royce.com/products-and-services/defence/aerospace/rotary/ae-1107c.aspx">"Taking tilt-rotor operations to new heights"</a>. <i><a href="/wiki/Rolls-Royce_plc" class="mw-redirect" title="Rolls-Royce plc">Rolls-Royce plc</a></i><span class="reference-accessdate">. Retrieved <span class="nowrap">21 June</span> 2020</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Rolls-Royce+plc&rft.atitle=Taking+tilt-rotor+operations+to+new+heights&rft_id=https%3A%2F%2Fwww.rolls-royce.com%2Fproducts-and-services%2Fdefence%2Faerospace%2Frotary%2Fae-1107c.aspx&rfr_id=info%3Asid%2Fen.wikipedia.org%3ARolls-Royce+T406" class="Z3988"></span></span> </li> <li id="cite_note-Engineer20170407-23"><span class="mw-cite-backlink"><b><a href="#cite_ref-Engineer20170407_23-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFNathan2017" class="citation news cs1">Nathan, Stuart (7 April 2017). <a rel="nofollow" class="external text" href="https://www.theengineer.co.uk/darpa-flies-scaled-down-electric-model-of-vtol-aircraft/">"DARPA flies scaled-down electric model of VTOL aircraft"</a>. <i>The Engineer</i>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=The+Engineer&rft.atitle=DARPA+flies+scaled-down+electric+model+of+VTOL+aircraft&rft.date=2017-04-07&rft.aulast=Nathan&rft.aufirst=Stuart&rft_id=https%3A%2F%2Fwww.theengineer.co.uk%2Fdarpa-flies-scaled-down-electric-model-of-vtol-aircraft%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ARolls-Royce+T406" class="Z3988"></span></span> </li> <li id="cite_note-jet-engines.net-24"><span class="mw-cite-backlink"><b><a href="#cite_ref-jet-engines.net_24-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20210509060114/http://www.jet-engine.net/miltsspec.html/">"Military Turboshaft/Turboprop Specifications"</a>. <i>Jet Engine Specification Database</i>. Archived from <a rel="nofollow" class="external text" href="http://www.jet-engine.net/miltsspec.html/">the original</a> on 9 May 2021<span class="reference-accessdate">. Retrieved <span class="nowrap">4 December</span> 2020</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Jet+Engine+Specification+Database&rft.atitle=Military+Turboshaft%2FTurboprop+Specifications&rft_id=http%3A%2F%2Fwww.jet-engine.net%2Fmiltsspec.html%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ARolls-Royce+T406" class="Z3988"></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="Further_reading">Further reading</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Rolls-Royce_T406&action=edit&section=7" title="Edit section: Further reading"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFLeyes_IIFleming1999" class="citation book cs1">Leyes II, Richard A.; Fleming, William A. (1999). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=V0SnFt8JGokC"><i>The history of North American small gas turbine aircraft engines</i></a>. Washington, DC: Smithsonian Institution. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/1-56347-332-1" title="Special:BookSources/1-56347-332-1"><bdi>1-56347-332-1</bdi></a>. <a href="/wiki/OCLC_(identifier)" class="mw-redirect" title="OCLC (identifier)">OCLC</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/oclc/247550535">247550535</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=The+history+of+North+American+small+gas+turbine+aircraft+engines&rft.place=Washington%2C+DC&rft.pub=Smithsonian+Institution&rft.date=1999&rft_id=info%3Aoclcnum%2F247550535&rft.isbn=1-56347-332-1&rft.aulast=Leyes+II&rft.aufirst=Richard+A.&rft.au=Fleming%2C+William+A.&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DV0SnFt8JGokC&rfr_id=info%3Asid%2Fen.wikipedia.org%3ARolls-Royce+T406" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFNewill1998" class="citation conference cs1">Newill, David B. (13–18 September 1998). <a rel="nofollow" class="external text" href="http://www.icas.org/ICAS_ARCHIVE/ICAS1998/PAPERS/563.PDF"><i>Common core development approach for Allison T406/AE family of turboshaft, turboprop, and turbofan engines</i></a> <span class="cs1-format">(PDF)</span>. <a rel="nofollow" class="external text" href="https://www.icas.org/ICAS_ARCHIVE/ICAS1998/index.html">ICAS Congress</a> (21st ed.). Melbourne, Victoria, Australia. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-1-56347-287-9" title="Special:BookSources/978-1-56347-287-9"><bdi>978-1-56347-287-9</bdi></a>. <a href="/wiki/OCLC_(identifier)" class="mw-redirect" title="OCLC (identifier)">OCLC</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/oclc/43888882">43888882</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=conference&rft.btitle=Common+core+development+approach+for+Allison+T406%2FAE+family+of+turboshaft%2C+turboprop%2C+and+turbofan+engines&rft.place=Melbourne%2C+Victoria%2C+Australia&rft.edition=21st&rft.date=1998-09-13%2F1998-09-18&rft_id=info%3Aoclcnum%2F43888882&rft.isbn=978-1-56347-287-9&rft.aulast=Newill&rft.aufirst=David+B.&rft_id=http%3A%2F%2Fwww.icas.org%2FICAS_ARCHIVE%2FICAS1998%2FPAPERS%2F563.PDF&rfr_id=info%3Asid%2Fen.wikipedia.org%3ARolls-Royce+T406" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFKorn1987" class="citation conference cs1">Korn, Jim (13 November 1987). <i>Gas turbine engine development partnerships</i>. International Pacific Air and Space Technology Conference and Exposition. <i>SAE Technical Papers</i>. Melbourne, Australia: SAE International. pp. 119–132. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.4271%2F872410">10.4271/872410</a>. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0148-7191">0148-7191</a>. <a href="/wiki/OCLC_(identifier)" class="mw-redirect" title="OCLC (identifier)">OCLC</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/oclc/5817974566">5817974566</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=conference&rft.jtitle=SAE+Technical+Papers&rft.atitle=Gas+turbine+engine+development+partnerships&rft.pages=119-132&rft.date=1987-11-13&rft_id=info%3Aoclcnum%2F5817974566&rft.issn=0148-7191&rft_id=info%3Adoi%2F10.4271%2F872410&rft.aulast=Korn&rft.aufirst=Jim&rfr_id=info%3Asid%2Fen.wikipedia.org%3ARolls-Royce+T406" class="Z3988"></span></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=Rolls-Royce_T406&action=edit&section=8" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1235681985">.mw-parser-output .side-box{margin:4px 0;box-sizing:border-box;border:1px solid #aaa;font-size:88%;line-height:1.25em;background-color:var(--background-color-interactive-subtle,#f8f9fa);display:flow-root}.mw-parser-output .side-box-abovebelow,.mw-parser-output .side-box-text{padding:0.25em 0.9em}.mw-parser-output .side-box-image{padding:2px 0 2px 0.9em;text-align:center}.mw-parser-output .side-box-imageright{padding:2px 0.9em 2px 0;text-align:center}@media(min-width:500px){.mw-parser-output .side-box-flex{display:flex;align-items:center}.mw-parser-output .side-box-text{flex:1;min-width:0}}@media(min-width:720px){.mw-parser-output .side-box{width:238px}.mw-parser-output .side-box-right{clear:right;float:right;margin-left:1em}.mw-parser-output .side-box-left{margin-right:1em}}</style><style data-mw-deduplicate="TemplateStyles:r1237033735">@media print{body.ns-0 .mw-parser-output .sistersitebox{display:none!important}}@media screen{html.skin-theme-clientpref-night .mw-parser-output .sistersitebox img[src*="Wiktionary-logo-en-v2.svg"]{background-color:white}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .sistersitebox 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:Rolls-Royce_AE_1107C_(T406)" class="extiw" title="commons:Category:Rolls-Royce AE 1107C (T406)">Rolls-Royce AE 1107C (T406)</a></span>.</div></div> </div> <ul><li><a rel="nofollow" class="external text" href="https://www.rolls-royce.com/products-and-services/defence/aerospace/rotary/ae-1107c.aspx#/">AE 1107C-Liberty at Rolls-Royce site</a></li> <li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20100816030624/http://www.rolls-royce.com/Images/AE1107C_tcm92-6702.pdf">AE 1107C-Liberty Fact Sheet</a></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation report cs1"><a rel="nofollow" class="external text" href="https://rgl.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/d4e6e669831fa5ff8525676200471038/$FILE/E00008ch.pdf">Type certificate data sheet no. E00008CH</a> <span class="cs1-format">(PDF)</span> (Report). Department of Transportation (<a href="/wiki/USDOT" class="mw-redirect" title="USDOT">USDOT</a>), <a href="/wiki/Federal_Aviation_Administration" title="Federal Aviation Administration">Federal Aviation Administration</a> (FAA). 2 April 1999.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=report&rft.btitle=Type+certificate+data+sheet+no.+E00008CH&rft.pub=Department+of+Transportation+%28USDOT%29%2C+Federal+Aviation+Administration+%28FAA%29&rft.date=1999-04-02&rft_id=https%3A%2F%2Frgl.faa.gov%2FRegulatory_and_Guidance_Library%2FrgMakeModel.nsf%2F0%2Fd4e6e669831fa5ff8525676200471038%2F%24FILE%2FE00008ch.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3ARolls-Royce+T406" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFAllison1988" class="citation magazine cs1">Allison (February 1988). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=Ypm5QWIKtCAC&pg=RA1-PA9">"Allison introduces new technologies for the V-22 Osprey"</a>. <i><a href="/wiki/Marine_Corps_Gazette" title="Marine Corps Gazette">Marine Corps Gazette</a></i>. Vol. 72, no. 2. p. 9. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0025-3170">0025-3170</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Marine+Corps+Gazette&rft.atitle=Allison+introduces+new+technologies+for+the+V-22+Osprey&rft.volume=72&rft.issue=2&rft.pages=9&rft.date=1988-02&rft.issn=0025-3170&rft.au=Allison&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DYpm5QWIKtCAC%26pg%3DRA1-PA9&rfr_id=info%3Asid%2Fen.wikipedia.org%3ARolls-Royce+T406" class="Z3988"></span></li></ul> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output 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href="/wiki/Turbojet" title="Turbojet">Turbojets</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Allison_J33" title="Allison J33">J33</a></li> <li><a href="/wiki/Allison_J35" title="Allison J35">J35</a></li> <li><a href="/wiki/Allison_J71" title="Allison J71">J71</a></li> <li><a href="/wiki/Allison_J102" title="Allison J102">J102</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Turbofan" title="Turbofan">Turbofans</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Rolls-Royce_AE_3007" title="Rolls-Royce AE 3007">AE 3007</a></li> <li><a href="/wiki/Rolls-Royce_Spey" title="Rolls-Royce Spey">AR.168R</a>†</li> <li><a href="/wiki/Allison_TF32" title="Allison TF32">TF32</a></li> <li><a href="/wiki/Allison_TF41" title="Allison TF41">TF41</a></li> <li><a href="/wiki/General_Electric/Rolls-Royce_F136" title="General Electric/Rolls-Royce F136">F136</a>†</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Turboprop" title="Turboprop">Turboprops</a>/<a href="/wiki/Turboshaft" title="Turboshaft">Turboshafts</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Allison_Model_250" title="Allison Model 250">250/T63</a></li> <li><a href="/wiki/Rolls-Royce_AE_2100" title="Rolls-Royce AE 2100">AE 2100</a></li> <li><a href="/wiki/Allison_T38" title="Allison T38">T38</a></li> <li><a href="/wiki/Allison_T38" title="Allison T38">T39</a></li> <li><a href="/wiki/Allison_T40" title="Allison T40">T40</a></li> <li><a href="/wiki/Allison_T40" title="Allison T40">T44</a></li> <li><a href="/wiki/Allison_T40" title="Allison T40">T54</a></li> <li><a href="/wiki/Allison_T56" title="Allison T56">T56</a> (<a href="/wiki/Allison_T56_variants" title="Allison T56 variants">variants</a>)</li> <li><a href="/wiki/Allison_T61" title="Allison T61">T61</a></li> <li><a href="/wiki/Allison_T78" title="Allison T78">T78</a></li> <li><a class="mw-selflink selflink">T406</a></li> <li><a href="/wiki/Allison_T701" class="mw-redirect" title="Allison T701">T701</a></li> <li><a href="/wiki/LHTEC_T800" title="LHTEC T800">T800</a>†</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Propfan" title="Propfan">Propfan</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Pratt_%26_Whitney/Allison_578-DX" title="Pratt & Whitney/Allison 578-DX">578-DX</a>†</li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="3"><div>† <a href="/wiki/Template:Joint_development_aeroengines" title="Template:Joint development aeroengines">Joint 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class="new" title="Rolls-Royce Advance 2 (page does not exist)">Advance 2</a></li> <li><a href="/w/index.php?title=Rolls-Royce_Advance_3&action=edit&redlink=1" class="new" title="Rolls-Royce Advance 3 (page does not exist)">Advance 3</a></li> <li><a href="/wiki/Rolls-Royce_AE_3007" title="Rolls-Royce AE 3007">AE 3007</a>†</li> <li><a href="/wiki/Rolls-Royce_BR700" title="Rolls-Royce BR700">BR700</a>‡</li> <li><a href="/wiki/Eurojet_EJ200" title="Eurojet EJ200">EJ200</a>‡</li> <li><a href="/wiki/General_Electric/Rolls-Royce_F136" title="General Electric/Rolls-Royce F136">F136</a>‡</li> <li><a href="/wiki/Rolls-Royce_RB.183_Tay" title="Rolls-Royce RB.183 Tay">RB183</a></li> <li><a href="/wiki/Rolls-Royce_RB282" title="Rolls-Royce RB282">RB282</a></li> <li><a href="/wiki/Rolls-Royce_RB401" title="Rolls-Royce RB401">RB401</a></li> <li><a href="/wiki/Rolls-Royce/JAEC_RJ500" title="Rolls-Royce/JAEC RJ500">RJ500</a>‡</li> <li><a href="/wiki/Rolls-Royce_RB.183_Tay" title="Rolls-Royce RB.183 Tay">Spey Junior</a></li> <li><a href="/wiki/Rolls-Royce_RB.183_Tay" title="Rolls-Royce RB.183 Tay">Tay</a></li> <li><a href="/wiki/Rolls-Royce_Trent" title="Rolls-Royce Trent">Trent series</a> (<a href="/wiki/Rolls-Royce_Trent_500" title="Rolls-Royce Trent 500">Trent 500</a></li> <li><a href="/wiki/Rolls-Royce_Trent_700" title="Rolls-Royce Trent 700">Trent 700</a></li> <li><a href="/wiki/Rolls-Royce_Trent_800" title="Rolls-Royce Trent 800">Trent 800</a></li> <li><a href="/wiki/Rolls-Royce_Trent_900" title="Rolls-Royce Trent 900">Trent 900</a></li> <li><a href="/wiki/Rolls-Royce_Trent_1000" title="Rolls-Royce Trent 1000">Trent 1000</a></li> <li><a href="/wiki/Rolls-Royce_Trent_XWB" title="Rolls-Royce Trent XWB">Trent XWB</a></li> <li><a href="/wiki/Rolls-Royce_Trent_7000" title="Rolls-Royce Trent 7000">Trent 7000</a>)</li> <li><a href="/wiki/IAE_V2500" title="IAE V2500">V2500</a>‡</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Turboprop" title="Turboprop">Turboprops</a>/<a href="/wiki/Turboshaft" title="Turboshaft">Turboshafts</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Allison_T56" title="Allison T56">501</a> (<a href="/wiki/Allison_T56_variants" title="Allison T56 variants">variants</a>)†</li> <li><a href="/wiki/Rolls-Royce_AE_2100" title="Rolls-Royce AE 2100">AE 2100</a>†</li> <li><a href="/wiki/Allison_Model_250" title="Allison Model 250">M250</a>†</li> <li><a href="/wiki/MTR_MTR390" title="MTR MTR390">MTR390</a>‡</li> <li><a href="/wiki/Rolls-Royce_RR300" title="Rolls-Royce RR300">RR300</a></li> <li><a href="/wiki/Rolls-Royce_RR500" title="Rolls-Royce RR500">RR500</a></li> <li><a href="/wiki/Allison_T56" title="Allison T56">T56</a>†</li> <li><a class="mw-selflink selflink">T406</a>†</li> <li><a href="/wiki/LHTEC_T800" title="LHTEC T800">T800</a>‡</li> <li><a href="/wiki/Europrop_TP400" title="Europrop TP400">TP400</a>‡</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other fan-type engines</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Rolls-Royce_RB529_Contrafan" title="Rolls-Royce RB529 Contrafan">RB529</a></li> <li><a href="/wiki/Rolls-Royce_RB3011" title="Rolls-Royce RB3011">RB2011</a></li> <li><a href="/wiki/Rolls-Royce_RB3011" title="Rolls-Royce RB3011">RB3011</a></li> <li><a href="/wiki/Rolls-Royce_LiftSystem" title="Rolls-Royce LiftSystem">LiftSystem</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Aero-derivative industrial <br />and marine <a href="/wiki/Gas_turbine" title="Gas turbine">gas turbines</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Rolls-Royce_MT30" title="Rolls-Royce MT30">MT30</a></li> <li><a class="mw-selflink selflink">MT7</a></li> <li><a href="/wiki/Rolls-Royce_WR-21" title="Rolls-Royce WR-21">WR-21</a>‡</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Aircraft</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Rolls-Royce_ACCEL" title="Rolls-Royce ACCEL">ACCEL</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div> <ul><li>Symbol † indicates <a href="/wiki/Allison_Engine_Company" title="Allison Engine Company">Allison</a> engines</li> <li>Symbol ‡ indicates <a href="/wiki/Template:Joint_development_aeroengines" title="Template:Joint development aeroengines">Joint development aero engines</a></li> <li>See also <a href="/wiki/Template:Rolls-Royce_aeroengines" title="Template:Rolls-Royce aeroengines">Rolls-Royce Limited aero engines</a> and <a href="/wiki/Rolls-Royce_Heritage_Trust" title="Rolls-Royce Heritage Trust">Rolls-Royce Heritage Trust</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="United_States_military_gas_turbine_aircraft_engine_designation_system" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:US_military_gas_turbine_aeroengines" title="Template:US military gas turbine aeroengines"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:US_military_gas_turbine_aeroengines" title="Template talk:US military gas turbine aeroengines"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:US_military_gas_turbine_aeroengines" title="Special:EditPage/Template:US military gas turbine aeroengines"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="United_States_military_gas_turbine_aircraft_engine_designation_system" style="font-size:114%;margin:0 4em"><a href="/wiki/United_States_Department_of_Defense" title="United States Department of Defense">United States military</a> gas turbine aircraft engine <a href="/wiki/United_States_military_aircraft_engine_designations" title="United States military aircraft engine designations">designation system</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Turbojet" title="Turbojet">Turbojets</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Westinghouse_J30" title="Westinghouse J30">J30</a></li> <li><a href="/wiki/General_Electric_J31" title="General Electric J31">J31</a></li> <li><a href="/wiki/Westinghouse_J32" title="Westinghouse J32">J32</a></li> <li><a href="/wiki/Allison_J33" title="Allison J33">J33</a></li> <li><a href="/wiki/Westinghouse_J34" title="Westinghouse J34">J34</a></li> <li><a href="/wiki/Allison_J35" title="Allison J35">J35</a></li> <li><a href="/wiki/De_Havilland_Goblin" title="De Havilland Goblin">J36</a></li> <li><a href="/wiki/Lockheed_J37" title="Lockheed J37">J37</a></li> <li><a href="/wiki/West_Engineering_XJ38" title="West Engineering XJ38">XJ38</a></li> <li><a href="/wiki/General_Electric_J31" title="General Electric J31">J39</a></li> <li><a href="/wiki/Westinghouse_J40" title="Westinghouse J40">J40</a></li> <li><a href="/wiki/Packard_XJ41" title="Packard XJ41">XJ41</a></li> <li><a href="/wiki/Rolls-Royce_Nene" title="Rolls-Royce Nene">J42</a></li> <li><a href="/wiki/Westinghouse_J30" title="Westinghouse J30">J43</a></li> <li><a href="/wiki/Fairchild_J44" title="Fairchild J44">J44</a></li> <li><a href="/wiki/Westinghouse_J34" title="Westinghouse J34">J45</a></li> <li><a href="/wiki/Westinghouse_J46" title="Westinghouse J46">J46</a></li> <li><a href="/wiki/General_Electric_J47" title="General Electric J47">J47</a></li> <li><a href="/wiki/Pratt_%26_Whitney_J48" title="Pratt & Whitney J48">J48</a></li> <li><a href="/wiki/Packard_XJ49" title="Packard XJ49">XJ49</a></li> <li><a href="/w/index.php?title=Wright_J51&action=edit&redlink=1" class="new" title="Wright J51 (page does not exist)">J51</a></li> <li><a href="/wiki/Pratt_%26_Whitney_J52" title="Pratt & Whitney J52">J52</a></li> <li><a href="/w/index.php?title=General_Electric_J53&action=edit&redlink=1" class="new" title="General Electric J53 (page does not exist)">J53</a></li> <li><a href="/wiki/Rolls-Royce_Avon" title="Rolls-Royce Avon">J54</a></li> <li><a href="/wiki/Flader_J55" title="Flader J55">J55</a></li> <li><a href="/w/index.php?title=Allison_J56&action=edit&redlink=1" class="new" title="Allison J56 (page does not exist)">J56</a></li> <li><a href="/wiki/Pratt_%26_Whitney_J57" title="Pratt & Whitney J57">J57</a></li> <li><a href="/wiki/Pratt_%26_Whitney_J58" title="Pratt & Whitney J58">J58</a></li> <li><a href="/w/index.php?title=Wright_J59&action=edit&redlink=1" class="new" title="Wright J59 (page does not exist)">J59</a></li> <li><a href="/wiki/Pratt_%26_Whitney_JT12" title="Pratt & Whitney JT12">J60</a></li> <li><a href="/w/index.php?title=Wright_J61&action=edit&redlink=1" class="new" title="Wright J61 (page does not exist)">J61</a></li> <li><a href="/w/index.php?title=Fairchild_J63&action=edit&redlink=1" class="new" title="Fairchild J63 (page does not exist)">J63</a></li> <li><a href="/wiki/Wright_J65" title="Wright J65">J65</a></li> <li><a href="/wiki/Rolls-Royce_Olympus" title="Rolls-Royce Olympus">J67</a></li> <li><a href="/wiki/Teledyne_CAE_J69" title="Teledyne CAE J69">J69</a></li> <li><a href="/wiki/Allison_J71" title="Allison J71">J71</a></li> <li><a href="/wiki/General_Electric_J73" title="General Electric J73">J73</a></li> <li><a href="/wiki/Pratt_%26_Whitney_J75" title="Pratt & Whitney J75">J75</a></li> <li><a href="/wiki/General_Electric_J79" title="General Electric J79">J79</a></li> <li><a href="/wiki/Rolls-Royce_Soar" title="Rolls-Royce Soar">J81</a></li> <li><a href="/wiki/Fairchild_J83" title="Fairchild J83">J83</a></li> <li><a href="/wiki/General_Electric_J85" title="General Electric J85">J85</a></li> <li><a href="/wiki/General_Electric_J87" title="General Electric J87">J87</a></li> <li><a href="/w/index.php?title=Allison_J89&action=edit&redlink=1" class="new" title="Allison J89 (page does not exist)">J89</a></li> <li><a href="/w/index.php?title=Pratt_%26_Whitney_J91&action=edit&redlink=1" class="new" title="Pratt & Whitney J91 (page does not exist)">J91</a></li> <li><a href="/wiki/General_Electric_YJ93" title="General Electric YJ93">YJ93</a></li> <li><a href="/w/index.php?title=Teledyne_LJ95&action=edit&redlink=1" class="new" title="Teledyne LJ95 (page does not exist)">J95</a></li> <li><a href="/wiki/General_Electric_J97" title="General Electric J97">J97</a></li> <li><a href="/w/index.php?title=Rolls-Royce_J99&action=edit&redlink=1" class="new" title="Rolls-Royce J99 (page does not exist)">J99</a></li> <li><a href="/wiki/Teledyne_CAE_J69" title="Teledyne CAE J69">J100</a></li> <li><a href="/wiki/General_Electric_YJ101" title="General Electric YJ101">YJ101</a></li> <li><a href="/wiki/Allison_J102" title="Allison J102">J102</a></li></ul> <ul><li><a href="/wiki/Williams_J400" title="Williams J400">J400</a></li> <li><a href="/w/index.php?title=Garrett_J401&action=edit&redlink=1" class="new" title="Garrett J401 (page does not exist)">J401</a></li> <li><a href="/wiki/Teledyne_CAE_J402" title="Teledyne CAE J402">J402</a></li> <li><a href="/wiki/Microturbo_TRI_60" title="Microturbo TRI 60">J403</a></li></ul> <ul><li><a href="/wiki/Teledyne_CAE_J700" title="Teledyne CAE J700">J700</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Turboprop" title="Turboprop">Turboprops</a>/<br /><a href="/wiki/Turboshaft" title="Turboshaft">Turboshafts</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Westinghouse_T30" class="mw-redirect" title="Westinghouse T30">T30</a></li> <li><a href="/wiki/General_Electric_T31" title="General Electric T31">T31</a></li> <li><a href="/wiki/Flader_J55" title="Flader J55">T33</a></li> <li><a href="/wiki/Pratt_%26_Whitney_T34" title="Pratt & Whitney T34">T34</a></li> <li><a href="/wiki/Lockheed_J37" title="Lockheed J37">T35</a></li> <li><a href="/wiki/Chrysler_T36D" title="Chrysler T36D">T36</a></li> <li><a href="/wiki/Northrop-Hendy_XT37" title="Northrop-Hendy XT37">T37</a></li> <li><a href="/wiki/Allison_T38" title="Allison T38">T38</a></li> <li><a href="/wiki/Allison_T38" title="Allison T38">T39</a></li> <li><a href="/wiki/Allison_T40" title="Allison T40">T40</a></li> <li><a href="/wiki/General_Electric_T31" title="General Electric T31">T41</a></li> <li><a href="/w/index.php?title=De_Laval_T42&action=edit&redlink=1" class="new" title="De Laval T42 (page does not exist)">T42</a></li> <li><a href="/w/index.php?title=Wright_T43&action=edit&redlink=1" class="new" title="Wright T43 (page does not exist)">T43</a></li> <li><a href="/wiki/Allison_T40" title="Allison T40">T44</a></li> <li><a href="/w/index.php?title=Pratt_%26_Whitney_T45&action=edit&redlink=1" class="new" title="Pratt & Whitney T45 (page does not exist)">T45</a></li> <li><a href="/wiki/Fairchild_T46" class="mw-redirect" title="Fairchild T46">T46</a></li> <li><a href="/wiki/Wright_T47" class="mw-redirect" title="Wright T47">T47</a></li> <li><a href="/w/index.php?title=Pratt_%26_Whitney_T48&action=edit&redlink=1" class="new" title="Pratt & Whitney T48 (page does not exist)">T48</a></li> <li><a href="/wiki/Wright_T49" class="mw-redirect" title="Wright T49">T49</a></li> <li><a href="/wiki/Boeing_T50" title="Boeing T50">T50</a></li> <li><a href="/wiki/Continental_T51" title="Continental T51">T51</a></li> <li><a href="/w/index.php?title=Pratt_%26_Whitney_T52&action=edit&redlink=1" class="new" title="Pratt & Whitney T52 (page does not exist)">T52</a></li> <li><a href="/wiki/Lycoming_T53" title="Lycoming T53">T53</a></li> <li><a href="/wiki/Allison_T40" title="Allison T40">T54</a></li> <li><a href="/wiki/Honeywell_T55" title="Honeywell T55">T55</a></li> <li><a href="/wiki/Allison_T56" title="Allison T56">T56</a> (<a href="/wiki/Allison_T56_variants" title="Allison T56 variants">variants</a>)</li> <li><a href="/wiki/Pratt_%26_Whitney_XT57" title="Pratt & Whitney XT57">T57</a></li> <li><a href="/wiki/General_Electric_T58" title="General Electric T58">T58</a></li> <li><a href="/wiki/Boeing_T60" title="Boeing T60">T60</a></li> <li><a href="/wiki/Allison_T61" title="Allison T61">T61</a></li> <li><a href="/wiki/Solar_T62" title="Solar T62">T62</a></li> <li><a href="/wiki/Allison_Model_250" title="Allison Model 250">T63</a></li> <li><a href="/wiki/General_Electric_T64" title="General Electric T64">T64</a></li> <li><a href="/wiki/Continental_T51" title="Continental T51">T65</a></li> <li><a href="/wiki/Solar_T62" title="Solar T62">T66</a></li> <li><a href="/wiki/Continental_T51" title="Continental T51">T67</a></li> <li><a href="/w/index.php?title=Rolls-Royce_T68&action=edit&redlink=1" class="new" title="Rolls-Royce T68 (page does not exist)">T68</a></li> <li><a href="/w/index.php?title=Teledyne_CAE_T69&action=edit&redlink=1" class="new" title="Teledyne CAE T69 (page does not exist)">T69</a></li> <li><a href="/wiki/Westinghouse_T70" class="mw-redirect" title="Westinghouse T70">T70</a></li> <li><a href="/w/index.php?title=Allison_T71&action=edit&redlink=1" class="new" title="Allison T71 (page does not exist)">T71</a></li> <li><a href="/wiki/Continental_T51" title="Continental T51">T72</a></li> <li><a href="/wiki/Pratt_%26_Whitney_JT12" title="Pratt & Whitney JT12">T73</a></li> <li><a href="/wiki/Pratt_%26_Whitney_Canada_PT6" title="Pratt & Whitney Canada PT6">T74</a></li> <li><a href="/wiki/Garrett_TPE331" class="mw-redirect" title="Garrett TPE331">T76</a></li> <li><a href="/wiki/Allison_T78" title="Allison T78">T78</a></li> <li><a href="/w/index.php?title=Allison_T80&action=edit&redlink=1" class="new" title="Allison T80 (page does not exist)">T80</a></li></ul> <ul><li><a href="/w/index.php?title=Sunstrand_T100&action=edit&redlink=1" class="new" title="Sunstrand T100 (page does not exist)">T100</a></li> <li><a href="/wiki/Pratt_%26_Whitney_Canada_PT6#PT6A" title="Pratt & Whitney Canada PT6">T101</a></li></ul> <ul><li><a href="/wiki/Pratt_%26_Whitney_Canada_PT6T" title="Pratt & Whitney Canada PT6T">T400</a></li> <li><a href="/w/index.php?title=Lycoming_T405&action=edit&redlink=1" class="new" title="Lycoming T405 (page does not exist)">T405</a></li> <li><a class="mw-selflink selflink">T406</a></li> <li><a href="/wiki/General_Electric_GE38" title="General Electric GE38">T407</a></li> <li><a href="/wiki/General_Electric_GE38" title="General Electric GE38">T408</a></li></ul> <ul><li><a href="/wiki/General_Electric_T700" title="General Electric T700">T700</a></li> <li><a href="/wiki/Allison_T56_variants" title="Allison T56 variants">T701</a></li> <li><a href="/wiki/Lycoming_LTS101" title="Lycoming LTS101">T702</a></li> <li><a href="/wiki/Allison_Model_250" title="Allison Model 250">T703</a></li> <li><a href="/wiki/General_Electric_T700" title="General Electric T700">T706</a></li> <li><a href="/w/index.php?title=General_Electric_T708&action=edit&redlink=1" class="new" title="General Electric T708 (page does not exist)">T708</a></li> <li><a href="/wiki/LHTEC_T800" title="LHTEC T800">LHTEC T800</a></li> <li><a href="/wiki/Avco/Pratt_%26_Whitney_T800" title="Avco/Pratt & Whitney T800">APW T800</a></li> <li><a href="/wiki/ATEC_T900" title="ATEC T900">T900</a></li> <li><a href="/wiki/General_Electric_T901" title="General Electric T901">T901</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Turbofan" title="Turbofan">Turbofans</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Pratt_%26_Whitney_TF30" title="Pratt & Whitney TF30">TF30</a></li> <li><a href="/w/index.php?title=General_Electric_TF31&action=edit&redlink=1" class="new" title="General Electric TF31 (page does not exist)">TF31</a></li> <li><a href="/wiki/Allison_TF32" title="Allison TF32">TF32</a></li> <li><a href="/wiki/Pratt_%26_Whitney_JT3D" title="Pratt & Whitney JT3D">TF33</a></li> <li><a href="/wiki/General_Electric_TF34" title="General Electric TF34">TF34</a></li> <li><a href="/wiki/General_Electric_CJ805" title="General Electric CJ805">TF35</a></li> <li><a href="/wiki/General_Electric_CF700" title="General Electric CF700">TF37</a></li> <li><a href="/wiki/General_Electric_TF39" title="General Electric TF39">TF39</a></li> <li><a href="/wiki/Allison_TF41" title="Allison TF41">TF41</a></li></ul> <ul><li><a href="/wiki/Pratt_%26_Whitney_F100" title="Pratt & Whitney F100">F100</a></li> <li><a href="/wiki/General_Electric_F101" title="General Electric F101">F101</a></li> <li><a href="/wiki/Lycoming_ALF_502" title="Lycoming ALF 502">F102</a></li> <li><a href="/wiki/General_Electric_CF6" title="General Electric CF6">F103</a></li> <li><a href="/wiki/Garrett_ATF3" title="Garrett ATF3">F104</a></li> <li><a href="/wiki/Pratt_%26_Whitney_JT9D" title="Pratt & Whitney JT9D">F105</a></li> <li><a href="/wiki/Teledyne_CAE_F106" title="Teledyne CAE F106">F106</a></li> <li><a href="/wiki/Williams_F107" title="Williams F107">F107</a></li> <li><a href="/wiki/CFM_International_CFM56" title="CFM International CFM56">F108</a></li> <li><a href="/wiki/Garrett_F109" title="Garrett F109">F109</a></li> <li><a href="/wiki/General_Electric_F110" title="General Electric F110">F110</a></li> <li><a href="/wiki/Williams_F112" title="Williams F112">F112</a></li> <li><a href="/wiki/Rolls-Royce_Spey" title="Rolls-Royce Spey">F113</a></li> <li><a href="/wiki/Pratt_%26_Whitney_PW2000" title="Pratt & Whitney PW2000">F117</a></li> <li><a href="/wiki/General_Electric_F118" title="General Electric F118">F118</a></li> <li><a href="/wiki/Pratt_%26_Whitney_F119" title="Pratt & Whitney F119">F119</a></li> <li><a href="/wiki/General_Electric_YF120" title="General Electric YF120">YF120</a></li> <li><a href="/wiki/Williams_F121" title="Williams F121">F121</a></li> <li><a href="/wiki/Williams_F122" class="mw-redirect" title="Williams F122">F122</a></li> <li><a href="/wiki/Honeywell/ITEC_F124" title="Honeywell/ITEC F124">F124</a></li> <li><a href="/wiki/Honeywell/ITEC_F124" title="Honeywell/ITEC F124">F125</a></li> <li><a href="/wiki/Rolls-Royce_RB.183_Tay" title="Rolls-Royce RB.183 Tay">F126</a></li> <li><a href="/wiki/General_Electric_F404" title="General Electric F404">F127</a></li> <li><a href="/wiki/General_Electric_F404" title="General Electric F404">F128</a></li> <li><a href="/wiki/Williams_FJ44" title="Williams FJ44">F129</a></li> <li><a href="/wiki/Rolls-Royce_BR700" title="Rolls-Royce BR700">F130</a></li> <li><a href="/wiki/Pratt_%26_Whitney_F135" title="Pratt & Whitney F135">F135</a></li> <li><a href="/wiki/General_Electric/Rolls-Royce_F136" title="General Electric/Rolls-Royce F136">F136</a></li> <li><a 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