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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">7</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">8</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-External_links" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#External_links"> <div class="vector-toc-text"> <span class="vector-toc-numb">9</span> <span>External links</span> </div> </a> <ul id="toc-External_links-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Contents" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" title="Table of Contents" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Toggle the table of contents" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span 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interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Allison_Model_250" title="Allison Model 250 – Czech" lang="cs" hreflang="cs" data-title="Allison Model 250" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Allison_250" title="Allison 250 – German" lang="de" hreflang="de" data-title="Allison 250" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Allison_250" title="Allison 250 – Spanish" lang="es" hreflang="es" data-title="Allison 250" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%A2%D9%84%DB%8C%D8%B3%D9%88%D9%86_%D9%85%D8%AF%D9%84_%DB%B2%DB%B5%DB%B0" title="آلیسون مدل ۲۵۰ – Persian" lang="fa" hreflang="fa" data-title="آلیسون مدل ۲۵۰" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Allison_Model_250" title="Allison Model 250 – French" lang="fr" hreflang="fr" data-title="Allison Model 250" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Allison_Model_250" title="Allison Model 250 – Indonesian" lang="id" hreflang="id" data-title="Allison Model 250" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesian" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Allison_Model_250" title="Allison Model 250 – Italian" lang="it" hreflang="it" data-title="Allison Model 250" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%82%A2%E3%83%AA%E3%82%BD%E3%83%B3_250" title="アリソン 250 – Japanese" lang="ja" hreflang="ja" data-title="アリソン 250" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Allison_Model_250" title="Allison Model 250 – Slovenian" lang="sl" hreflang="sl" data-title="Allison Model 250" data-language-autonym="Slovenščina" data-language-local-name="Slovenian" 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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">Turboshaft aircraft engine</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%;">Model 250 / T63 </th></tr> <tr> <td colspan="2" style="text-align: center;"><span typeof="mw:File"><a href="/wiki/File:Allison_(MTU)_250_C20B.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/86/Allison_%28MTU%29_250_C20B.jpg/300px-Allison_%28MTU%29_250_C20B.jpg" decoding="async" width="300" height="208" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/86/Allison_%28MTU%29_250_C20B.jpg/450px-Allison_%28MTU%29_250_C20B.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/86/Allison_%28MTU%29_250_C20B.jpg/600px-Allison_%28MTU%29_250_C20B.jpg 2x" data-file-width="1622" data-file-height="1124" /></a></span> </td></tr> <tr> <td colspan="2" style="border-bottom: 1px solid #aaa;text-align:center;"><a href="/wiki/MTU_Aero_Engines" title="MTU Aero Engines">MTU</a>-built Allison 250-C20B </td></tr> <tr> <th>Type </th> <td><a href="/wiki/Turboshaft" title="Turboshaft">Turboshaft</a>/<a href="/wiki/Turboprop" title="Turboprop">Turboprop</a> </td></tr> <tr> <th><span class="nowrap">National origin</span> </th> <td><a href="/wiki/United_States" title="United States">United States</a> </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_plc" class="mw-redirect" title="Rolls-Royce plc">Rolls-Royce plc</a> </td></tr> <tr> <th><span class="nowrap">Major applications</span> </th> <td><a href="/wiki/Bell_206" title="Bell 206">Bell 206</a><br /><a href="/wiki/Britten-Norman_BN-2T_Turbine_Islander" class="mw-redirect" title="Britten-Norman BN-2T Turbine Islander">Britten-Norman BN-2T Turbine Islander</a><br /><a href="/wiki/MD_Helicopters_MD_500" title="MD Helicopters MD 500">MD Helicopters MD 500</a><br /><a href="/wiki/MBB_Bo_105" title="MBB Bo 105">MBB Bo 105</a><br /><a href="/wiki/Sikorsky_S-76" title="Sikorsky S-76">Sikorsky S-76</a> </td></tr> <tr> <th><span class="nowrap">Number built</span> </th> <td>>30,000 </td></tr> <tr> <th>Variants </th> <td><a href="/wiki/Rolls-Royce_RR300" title="Rolls-Royce RR300">Rolls-Royce RR300</a> </td></tr> <tr> <th><span class="nowrap">Developed into</span> </th> <td><a href="/wiki/Rolls-Royce_RR500" title="Rolls-Royce RR500">Rolls-Royce RR500</a> </td></tr></tbody></table> <p>The <b>Allison Model 250</b>, now known as the <b>Rolls-Royce M250</b>, (US military designations <b>T63</b> and <b>T703</b>) is a highly successful <a href="/wiki/Turboshaft" title="Turboshaft">turboshaft</a> engine family, originally developed by the <a href="/wiki/Allison_Engine_Company" title="Allison Engine Company">Allison Engine Company</a> in the early 1960s. The Model 250 has been produced by Rolls-Royce since it acquired Allison in 1995. </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=Allison_Model_250&action=edit&section=1" title="Edit section: Development"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In 1958, the <a href="/wiki/Detroit_Diesel" title="Detroit Diesel">Detroit Diesel</a> Allison division of General Motors was chosen by the US Army to develop a new light turbine engine to power a "Light Observation Aircraft" (LOA), to replace the <a href="/wiki/Cessna_O-1_Bird_Dog" title="Cessna O-1 Bird Dog">Cessna O-1A Bird Dog</a>. At this stage the US Army was unsure whether to have a fixed- or rotary-wing aircraft, so Allison was instructed to consider both applications. Design studies undertaken considered a wide range of possible mechanical configurations for the turboprop/turboshaft. These studies culminated in the testing of the first prototype engine, designated YT63-A-3, in April 1959.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> In 1960, the US Army settled for a rotary wing platform. The YT63-A-3 first flew in a variant of the <a href="/wiki/Bell_47" title="Bell 47">Bell 47</a> helicopter in 1961. A modified version of the engine (YT63-A-5) with the exhaust pointing upwards (to avoid grass fires) soon followed. This version, rated at 250 hp, passed the Model Qualification Test in September 1962. The <a href="/wiki/Hughes_OH-6" class="mw-redirect" title="Hughes OH-6">Hughes OH-6</a> design, powered by the T63, was selected for the US Army <a href="/wiki/Light_Observation_Helicopter" title="Light Observation Helicopter">LOH</a> in May 1965. </p><p>The Model 250 powers a large number of helicopters, small aircraft and even a motorcycle (<a href="/wiki/MTT_Turbine_Superbike" title="MTT Turbine Superbike">MTT Turbine Superbike</a>).<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> As a result, nearly 30,000 Model 250 engines have been produced, of which approximately 16,000 remain in service, making the Model 250 one of the highest-selling engines made by Rolls-Royce. </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=Allison_Model_250&action=edit&section=2" title="Edit section: Design"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1251242444">.mw-parser-output .ambox{border:1px solid #a2a9b1;border-left:10px solid #36c;background-color:#fbfbfb;box-sizing:border-box}.mw-parser-output .ambox+link+.ambox,.mw-parser-output .ambox+link+style+.ambox,.mw-parser-output .ambox+link+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+style+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+link+.ambox{margin-top:-1px}html body.mediawiki .mw-parser-output .ambox.mbox-small-left{margin:4px 1em 4px 0;overflow:hidden;width:238px;border-collapse:collapse;font-size:88%;line-height:1.25em}.mw-parser-output .ambox-speedy{border-left:10px solid #b32424;background-color:#fee7e6}.mw-parser-output .ambox-delete{border-left:10px solid #b32424}.mw-parser-output .ambox-content{border-left:10px solid #f28500}.mw-parser-output .ambox-style{border-left:10px solid #fc3}.mw-parser-output .ambox-move{border-left:10px solid #9932cc}.mw-parser-output .ambox-protection{border-left:10px solid #a2a9b1}.mw-parser-output .ambox .mbox-text{border:none;padding:0.25em 0.5em;width:100%}.mw-parser-output .ambox .mbox-image{border:none;padding:2px 0 2px 0.5em;text-align:center}.mw-parser-output .ambox .mbox-imageright{border:none;padding:2px 0.5em 2px 0;text-align:center}.mw-parser-output .ambox .mbox-empty-cell{border:none;padding:0;width:1px}.mw-parser-output .ambox .mbox-image-div{width:52px}@media(min-width:720px){.mw-parser-output .ambox{margin:0 10%}}@media print{body.ns-0 .mw-parser-output .ambox{display:none!important}}</style><table class="box-Unreferenced_section plainlinks metadata ambox ambox-content ambox-Unreferenced" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><a href="/wiki/File:Question_book-new.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/50px-Question_book-new.svg.png" decoding="async" width="50" height="39" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/75px-Question_book-new.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/100px-Question_book-new.svg.png 2x" data-file-width="512" data-file-height="399" /></a></span></div></td><td class="mbox-text"><div class="mbox-text-span">This section <b>does not <a href="/wiki/Wikipedia:Citing_sources" title="Wikipedia:Citing sources">cite</a> any <a href="/wiki/Wikipedia:Verifiability" title="Wikipedia:Verifiability">sources</a></b>.<span class="hide-when-compact"> Please help <a href="/wiki/Special:EditPage/Allison_Model_250" title="Special:EditPage/Allison Model 250">improve this section</a> by <a href="/wiki/Help:Referencing_for_beginners" title="Help:Referencing for beginners">adding citations to reliable sources</a>. Unsourced material may be challenged and <a href="/wiki/Wikipedia:Verifiability#Burden_of_evidence" title="Wikipedia:Verifiability">removed</a>.</span> <span class="date-container"><i>(<span class="date">May 2022</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <p>Allison adopted a reverse-airflow engine configuration for the Model 250: although air enters the intake/compression system in the conventional fashion, the compressed air leaving the centrifugal compressor diffuser is ported rearwards via two transfer pipes, which go around the outside of the turbine system, before the air is turned through 180 degrees at entry to the combustor. The combustion products expand axially forward through the two-stage (single-stage on early engines) high-pressure turbine section, which is connected to the compressor via the HP shaft. The combustion products continue to expand through the two-stage power turbine which generates shaft horsepower for the aircraft. A coaxial stub shaft connects the power turbine to a compact reduction gearbox, located inboard, between the centrifugal compressor and the exhaust/power turbine system. The exhaust stream then turns through 90 degrees to exit the engine in a radial direction through twin exhaust ducts, which form a V-shape seen in the front elevation. </p><p>An important design feature of the Model 250 engine is its modular construction which greatly simplifies maintenance and repair activity. Also the unique reverse-flow design provides for ease of hot section maintenance. There are four modules: </p> <ul><li>compressor module, at the front of the engine</li> <li>gearbox module (including accessory drives)</li> <li>turbine module (including V-shaped exhaust ports)</li> <li>combustion module (including twin compressed air transfer ducts) at the rear</li></ul> <p>Earlier versions have seven axial compressor stages mounted on the HP shaft to supercharge a relatively low-pressure-ratio centrifugal compressor. The -C20B is typical, with an overall pressure ratio of 7.2:1, at an airflow of 3.45 lb/s (1.8 kg/s), with a power output, at the shaft, of 420 hp (310 kW). </p><p>One of the latest versions of the Model 250 is the -C40, which has only a centrifugal compressor producing a pressure ratio of 9.2:1, at an airflow of 6.1 lb/s (2.8 kg/s), and develops, at the shaft, 715 hp (533 kW). </p> <div class="mw-heading mw-heading2"><h2 id="Variants">Variants</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Allison_Model_250&action=edit&section=3" title="Edit section: Variants"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1184024115">.mw-parser-output .div-col{margin-top:0.3em;column-width:30em}.mw-parser-output .div-col-small{font-size:90%}.mw-parser-output .div-col-rules{column-rule:1px solid #aaa}.mw-parser-output .div-col dl,.mw-parser-output .div-col ol,.mw-parser-output .div-col ul{margin-top:0}.mw-parser-output .div-col li,.mw-parser-output .div-col dd{page-break-inside:avoid;break-inside:avoid-column}</style><div class="div-col" style="column-width: 22em;"> <dl><dt>250-B15</dt> <dt>250-B15A</dt> <dt>250-B15C</dt> <dt>250-B15G</dt> <dt>250-B17</dt> <dt>250-B17B</dt> <dt>250-B17C</dt> <dt>250-B17D</dt> <dt>250-B17Fg</dt> <dt>250-B17F/1</dt> <dt>250-B17F/2</dt> <dt>250-C10D</dt> <dt>250-C18</dt> <dd>317 hp (236 kW)</dd> <dt>250-C18A</dt> <dd>317 hp (236 kW)</dd> <dt>250-C20</dt> <dt>250-C20B</dt> <dt>250-C20F</dt> <dt>250-C20J</dt> <dd>420 hp (310 kW)</dd> <dt>250-C20R</dt> <dt>250-C20R/1</dt> <dt>250-C20R/2</dt> <dt>250-C20R/4</dt> <dt>250-C20S</dt> <dt>250-C20W</dt> <dt>250-C22B</dt> <dt>250-C28</dt> <dt>250-C28B</dt> <dt>250-C28C</dt> <dt>250-C30</dt> <dd>purpose built for use with the <a href="/wiki/Sikorsky_S-76" title="Sikorsky S-76">Sikorsky S-76</a>. It featured a single-stage centrifugal compressor instead of the multi-stage axial/centrifugal compressor of earlier models<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></dd> <dt>250-C30G</dt> <dt>250-C30G/2</dt> <dt>250-C30M</dt> <dt>250-C30P</dt> <dt>250-C30R</dt> <dt>250-C30R/3</dt> <dt>250-C30R/3M</dt> <dt>250-C30S</dt> <dt>250-C30U</dt> <dt>250-C34</dt> <dt>250-C40B</dt> <dt>250-C47B</dt> <dt>250-C47E<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></dt> <dt>250-C47M</dt> <dt>250-E3</dt> <dd>Experimental engine containing a <a href="/wiki/Regenerative_heat_exchanger" title="Regenerative heat exchanger">regenerative heat exchanger</a>. First regenerative engine to fully power a VTOL aircraft in flight. Ran on a <a href="/wiki/Hughes_OH-6" class="mw-redirect" title="Hughes OH-6">Hughes YOH-6A</a> Light Observation Helicopter in 1967. 185 lb (84 kg) engine delivering 280 hp (210 kW).<sup id="cite_ref-AllisoNews19671020_5-0" class="reference"><a href="#cite_note-AllisoNews19671020-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup></dd> <dt>250-KS4</dt> <dd>Used aboard marine ships as a starter system for larger gas turbines. RIMSS, Redundant Independent Mechanical Start System</dd> <dt>T63-A-5</dt> <dt>T63-A-5A</dt> <dt>T63-A-700</dt> <dd>317 hp (236 kW)</dd> <dt>T63-A-720</dt> <dd>420 hp (310 kW)</dd> <dt>T703-AD-700</dt> <dt>Soloy Turbine-Pac</dt> <dd>Typically 2x 250-C20S driving a single propeller via a combining gearbox, able to operate individually.</dd> <dt>Mitsubishi CT63</dt> <dd>Licence production for <a href="/wiki/Kawasaki-Hughes_500" class="mw-redirect" title="Kawasaki-Hughes 500">Kawasaki-Hughes 500</a> / OH-6A helicopters.</dd></dl> </div> <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=Allison_Model_250&action=edit&section=4" title="Edit section: Applications"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Fixed-wing">Fixed-wing</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Allison_Model_250&action=edit&section=5" title="Edit section: Fixed-wing"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1184024115"><div class="div-col" style="column-width: 30em;"> <ul><li><a href="/wiki/Aermacchi_M-290_RediGO" class="mw-redirect" title="Aermacchi M-290 RediGO">Aermacchi M-290 RediGO</a></li> <li><a href="/wiki/BAE_Systems_Mantis" title="BAE Systems Mantis">BAE Systems Mantis</a></li> <li><a href="/wiki/Beechcraft_Bonanza" title="Beechcraft Bonanza">Beechcraft Bonanza</a> (Prop-jet conversions)</li> <li><a href="/wiki/Britten-Norman_Islander" class="mw-redirect" title="Britten-Norman Islander">Britten-Norman BN-2T Turbine Islander</a></li> <li><a href="/wiki/Cessna_P210" class="mw-redirect" title="Cessna P210">Cessna P210</a> Silver Eagle (conversion)</li> <li><a href="/wiki/Extra_EA-500" title="Extra EA-500">Extra EA-500</a></li> <li><a href="/wiki/Fuji_T-5" title="Fuji T-5">Fuji T-5</a></li> <li><a href="/wiki/Fuji_T-7" title="Fuji T-7">Fuji T-7</a></li> <li><a href="/wiki/GAF_Nomad" title="GAF Nomad">GAF Nomad</a></li> <li><a href="/wiki/Gippsland_GA10" class="mw-redirect" title="Gippsland GA10">Gippsland GA10</a></li> <li><a href="/wiki/Grob_G_120TP" title="Grob G 120TP">Grob G 120TP</a></li> <li><a href="/wiki/Partenavia_P.68" title="Partenavia P.68">Partenavia AP.68TP variants - Spartacus & Viator</a></li> <li><a href="/wiki/RFB_Fantrainer" title="RFB Fantrainer">RFB Fantrainer</a></li> <li><a href="/wiki/SIAI-Marchetti_SF.260" title="SIAI-Marchetti SF.260">SIAI-Marchetti SF.260TP</a></li> <li><a href="/wiki/SIAI-Marchetti_SM.1019" title="SIAI-Marchetti SM.1019">SIAI-Marchetti SM.1019</a></li> <li><a href="/wiki/Cessna_206#Modifications" title="Cessna 206">Soloy Cessna 206 turbine conversion</a></li> <li><a href="/wiki/Stoddard-Hamilton_T-9_Stalker" title="Stoddard-Hamilton T-9 Stalker">Stoddard-Hamilton T-9 Stalker</a></li> <li><a href="/wiki/Valmet_L-90_Redigo" title="Valmet L-90 Redigo">Valmet L-90 Redigo</a></li></ul></div> <div class="mw-heading mw-heading3"><h3 id="Rotary-wing">Rotary-wing</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Allison_Model_250&action=edit&section=6" title="Edit section: Rotary-wing"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1184024115"><div class="div-col" style="column-width: 30em;"> <ul><li><a href="/wiki/AgustaWestland_AW109" title="AgustaWestland AW109">Agusta A109A</a></li> <li><a href="/wiki/Bell_206" title="Bell 206">Bell 206</a></li> <li><a href="/wiki/Bell_407" title="Bell 407">Bell 407</a></li> <li><a href="/wiki/Bell_222" class="mw-redirect" title="Bell 222">Bell 222</a>SP</li> <li><a href="/wiki/Bell_230" class="mw-redirect" title="Bell 230">Bell 230</a></li> <li><a href="/wiki/Bell_430" title="Bell 430">Bell 430</a></li> <li><a href="/wiki/Bell_OH-58_Kiowa" title="Bell OH-58 Kiowa">Bell OH-58 Kiowa</a></li> <li><a href="/wiki/Bell_YOH-4" title="Bell YOH-4">Bell YOH-4</a></li> <li><a href="/wiki/Boeing_AH-6" title="Boeing AH-6">Boeing AH-6</a></li> <li><a href="/wiki/Cicar%C3%A9_CH-14" class="mw-redirect" title="Cicaré CH-14">Cicaré CH-14</a></li> <li><a href="/wiki/Enstrom_480" title="Enstrom 480">Enstrom 480</a></li> <li><a href="/wiki/Eurocopter_AS355" class="mw-redirect" title="Eurocopter AS355">Eurocopter AS355</a>F</li> <li><a href="/wiki/Fairchild_Hiller_FH-1100" title="Fairchild Hiller FH-1100">Fairchild Hiller FH-1100</a></li> <li><a href="/wiki/HESA_Shahed_285" title="HESA Shahed 285">HESA Shahed 285</a></li> <li><a href="/wiki/Hughes_OH-6_Cayuse" title="Hughes OH-6 Cayuse">Hughes OH-6 Cayuse</a></li> <li><a href="/wiki/Kamov_Ka-226" title="Kamov Ka-226">Kamov Ka-226</a></li> <li><a href="/wiki/MBB_Bo_105" title="MBB Bo 105">MBB Bo 105</a></li> <li><a href="/wiki/MBB_Bo_108" class="mw-redirect" title="MBB Bo 108">MBB Bo 108</a></li> <li><a href="/wiki/MD_Helicopters_MD_500" title="MD Helicopters MD 500">MD Helicopters MD 500</a></li> <li><a href="/wiki/MD_Helicopters_MD_600" title="MD Helicopters MD 600">MD Helicopters MD 600</a></li> <li><a href="/wiki/MD_Helicopters_MH-6_Little_Bird" title="MD Helicopters MH-6 Little Bird">MD Helicopters MH-6 Little Bird</a></li> <li><a href="/wiki/Northrop_Grumman_MQ-8_Fire_Scout" title="Northrop Grumman MQ-8 Fire Scout">Northrop Grumman MQ-8 Fire Scout</a></li> <li><a href="/wiki/PZL_Kania" title="PZL Kania">PZL Kania</a></li> <li><a href="/wiki/PZL_SW-4" class="mw-redirect" title="PZL SW-4">PZL SW-4</a></li> <li><a href="/wiki/Schweizer_330" class="mw-redirect" title="Schweizer 330">Schweizer 330/330SP</a></li> <li><a href="/wiki/Schweizer_S-333" class="mw-redirect" title="Schweizer S-333">Schweizer S-333</a></li> <li><a href="/wiki/Sikorsky_S-76" title="Sikorsky S-76">Sikorsky S-76</a></li></ul></div> <div class="mw-heading mw-heading3"><h3 id="Other_applications">Other applications</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Allison_Model_250&action=edit&section=7" title="Edit section: Other applications"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>Gerhardt 66, USAC Indycar racing car</li> <li><a href="/wiki/Loral_GZ-22" title="Loral GZ-22">Loral GZ-22</a>, non-rigid airship</li> <li><a href="/wiki/MTT_Turbine_Superbike" title="MTT Turbine Superbike">MTT Turbine Superbike</a>, motorcycle</li> <li>RIMSS, Redundant Independent Mechanical Start System (use on gas turbine ships)</li></ul> <div class="mw-heading mw-heading2"><h2 id="Engines_on_display">Engines on display</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Allison_Model_250&action=edit&section=8" title="Edit section: Engines on display"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>A partially sectioned Allison 250-C20B is on public display at the <a href="/wiki/City_of_Norwich_Aviation_Museum" title="City of Norwich Aviation Museum">City of Norwich Aviation Museum</a> in <a href="/wiki/Horsham_St_Faith" title="Horsham St Faith">Horsham St Faith, Norfolk</a>.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup></li></ul> <div class="mw-heading mw-heading2"><h2 id="Specifications_Model_250-C18_(T63-A-700)"><span id="Specifications_Model_250-C18_.28T63-A-700.29"></span>Specifications Model 250-C18 (T63-A-700)</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Allison_Model_250&action=edit&section=9" title="Edit section: Specifications Model 250-C18 (T63-A-700)"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p style="font-size: 90%; margin:0; padding: .2em"><i>Data from</i> <i>The Instrumentation Design And Control of a T63-A-700 Gas Turbine Engine</i> <sup id="cite_ref-NSN7540012805500_7-0" class="reference"><a href="#cite_note-NSN7540012805500-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></p> <div class="mw-heading mw-heading4"><h4 id="General_characteristics">General characteristics</h4></div> <ul><li><b>Type:</b> <a href="/wiki/Turboshaft" title="Turboshaft">Turboshaft</a></li> <li><b>Length:</b> 40.5 in (1,029 mm)</li> <li><b>Diameter:</b> 22.5 in (572 mm)</li> <li><b>Dry weight:</b> 138.5 lb (63 kg) dry</li></ul> <div class="mw-heading mw-heading4"><h4 id="Components">Components</h4></div> <ul><li><b>Compressor:</b> 6-stage axial + 1-stage centrifugal compressors</li> <li><b><a href="/wiki/Combustor" title="Combustor">Combustors</a>:</b> Single can combustion chamber</li> <li><b><a href="/wiki/Turbine" title="Turbine">Turbine</a>:</b> 2-stage axial gas generator power turbine + 2-stage axial free-power output turbine</li> <li><b>Fuel type:</b> <a href="/wiki/JP-4" title="JP-4">JP-4</a> aviation kerosene (alternatively <a href="/wiki/JP-1" class="mw-redirect" title="JP-1">JP-1</a> or <a href="/wiki/JP-5" class="mw-redirect" title="JP-5">JP-5</a>)</li> <li><b>Oil system:</b> pressure spray/splash, dry sump</li></ul> <div class="mw-heading mw-heading4"><h4 id="Performance">Performance</h4></div> <ul><li><b>Maximum power output:</b> 317 hp (236 kW) for take-off, Sea Level 59 °F (15 °C) NH 51,600rpm NL 35,000rpm Nout 6,000rpm</li> <li><b><a href="/wiki/Overall_pressure_ratio" title="Overall pressure ratio">Overall pressure ratio</a>:</b> 6.2:1</li> <li><b>Air mass flow:</b> 3.3 lb/s (1.5 kg/s)</li> <li><b>Turbine inlet temperature:</b> 1,380 °F (750 °C)@Power Turbine Inlet</li> <li><b><a href="/wiki/Thrust_specific_fuel_consumption" class="mw-redirect" title="Thrust specific fuel consumption">Specific fuel consumption</a>:</b> 0.697 lb/hp·h (0.424 kg/kW·h)</li> <li><b><a href="/wiki/Power-to-weight_ratio" title="Power-to-weight ratio">Power-to-weight ratio</a>:</b> 2.289 hp/lb (3.765 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=Allison_Model_250&action=edit&section=10" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p> <b>Related development</b> </p> <ul><li><a href="/wiki/Rolls-Royce_RR300" title="Rolls-Royce RR300">Rolls-Royce RR300</a></li> <li><a href="/wiki/Rolls-Royce_RR500" title="Rolls-Royce RR500">Rolls-Royce RR500</a></li></ul> <p class="mw-empty-elt"> </p> <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=Allison_Model_250&action=edit&section=11" 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"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20161004205229/http://www.enginehistory.org/Convention/2009/Presentations/Model250Hx.pdf">"Archived copy"</a> <span class="cs1-format">(PDF)</span>. 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March 1980. pp. <span class="nowrap">111–</span>116, <span class="nowrap">142–</span>144. <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/0306-5634">0306-5634</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/907842170">907842170</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Air+International&rft.atitle=The+Spirit+of+Sikorsky&rft.volume=18&rft.issue=3&rft.pages=%3Cspan+class%3D%22nowrap%22%3E111-%3C%2Fspan%3E116%2C+%3Cspan+class%3D%22nowrap%22%3E142-%3C%2Fspan%3E144&rft.date=1980-03&rft_id=info%3Aoclcnum%2F907842170&rft.issn=0306-5634&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAllison+Model+250" class="Z3988"></span></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"><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.rolls-royce.com/news/press_releases/2013/04032013_military_helicopters.jsp">"Press releases"</a>. <i>www.rolls-royce.com</i><span class="reference-accessdate">. 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Vol. 27, no. 8. p. 1. <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/42343144">42343144</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=AllisoNews&rft.atitle=Allison+regenerative+engine+first+to+%27go+it+alone%27+in+flight&rft.volume=27&rft.issue=8&rft.pages=1&rft.date=1967-10-20&rft_id=info%3Aoclcnum%2F42343144&rft_id=https%3A%2F%2Findianamemory.contentdm.oclc.org%2Fdigital%2Fcollection%2FAT%2Fid%2F11591&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAllison+Model+250" class="Z3988"></span></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.cnam.org.uk/engines-list">"Engines List"</a>. <i>City of Norwich Aviation Museum</i><span class="reference-accessdate">. Retrieved <span class="nowrap">27 August</span> 2023</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=City+of+Norwich+Aviation+Museum&rft.atitle=Engines+List&rft_id=http%3A%2F%2Fwww.cnam.org.uk%2Fengines-list&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAllison+Model+250" class="Z3988"></span></span> </li> <li id="cite_note-NSN7540012805500-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-NSN7540012805500_7-0">^</a></b></span> <span class="reference-text"> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFHaas1996" class="citation book cs1">Haas, David William (1996). <i>The Instrumentation Design And Control of a T63-A-700 Gas Turbine Engine</i>. Monterey California: Naval Postgraduate School.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=The+Instrumentation+Design+And+Control+of+a+T63-A-700+Gas+Turbine+Engine&rft.place=Monterey+California&rft.pub=Naval+Postgraduate+School&rft.date=1996&rft.aulast=Haas&rft.aufirst=David+William&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAllison+Model+250" class="Z3988"></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Allison_Model_250&action=edit&section=12" 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 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.navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Allison_aeroengines" title="Template:Allison aeroengines"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Allison_aeroengines" title="Template talk:Allison aeroengines"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Allison_aeroengines" title="Special:EditPage/Template:Allison aeroengines"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Allison_Engine_Company_aircraft_engines204" style="font-size:114%;margin:0 4em"><a href="/wiki/Allison_Engine_Company" title="Allison Engine Company">Allison Engine Company</a> <a href="/wiki/Aircraft_engine" title="Aircraft engine">aircraft engines</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/V_engine" title="V engine">V engines</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/Liberty_L-12" title="Liberty L-12">VG-1410</a></li> <li><a href="/wiki/Allison_V-1710" title="Allison V-1710">V-1710</a></li> <li><a href="/wiki/Allison_V-3420" title="Allison V-3420">V-3420</a></li></ul> </div></td><td class="noviewer navbox-image" rowspan="5" style="width:1px;padding:0 0 0 2px"><div><span typeof="mw:File"><a href="/wiki/File:Allison_engines_logo.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/6f/Allison_engines_logo.png/120px-Allison_engines_logo.png" decoding="async" width="120" height="46" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/6f/Allison_engines_logo.png/180px-Allison_engines_logo.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/6f/Allison_engines_logo.png/240px-Allison_engines_logo.png 2x" data-file-width="306" data-file-height="118" /></a></span></div></td></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-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 class="mw-selflink selflink">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 href="/wiki/Rolls-Royce_T406" title="Rolls-Royce T406">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 development aeroengines</a></div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Rolls-Royce_Holdings_aero_engines_and_aircraft483" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Rolls-Royce_plc_aeroengines" title="Template:Rolls-Royce plc aeroengines"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Rolls-Royce_plc_aeroengines" title="Template talk:Rolls-Royce plc aeroengines"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Rolls-Royce_plc_aeroengines" title="Special:EditPage/Template:Rolls-Royce plc aeroengines"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Rolls-Royce_Holdings_aero_engines_and_aircraft483" style="font-size:114%;margin:0 4em"><a href="/wiki/Rolls-Royce_Holdings" title="Rolls-Royce Holdings">Rolls-Royce Holdings</a> <a href="/wiki/Aircraft_engines" class="mw-redirect" title="Aircraft engines">aero engines</a> and aircraft</div></th></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="/w/index.php?title=Rolls-Royce_Advance_2&action=edit&redlink=1" 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 class="mw-selflink selflink">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 href="/wiki/Rolls-Royce_T406" title="Rolls-Royce T406">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 href="/wiki/Rolls-Royce_T406" title="Rolls-Royce T406">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_system251" 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_system251" 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 class="mw-selflink selflink">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 href="/wiki/Rolls-Royce_T406" title="Rolls-Royce T406">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 class="mw-selflink selflink">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 href="/wiki/Rolls-Royce_AE_3007" title="Rolls-Royce AE 3007">F137</a></li> <li><a href="/wiki/General_Electric_CF6" title="General Electric CF6">F138</a></li></ul> <ul><li><a href="/w/index.php?title=General_Electric_F400&action=edit&redlink=1" class="new" title="General Electric F400 (page does not exist)">F400</a></li> <li><a href="/wiki/Pratt_%26_Whitney_F401" title="Pratt & Whitney F401">F401</a></li> <li><a href="/wiki/Rolls-Royce_Pegasus" title="Rolls-Royce Pegasus">F402</a></li> <li><a href="/wiki/General_Electric_F404" title="General Electric F404">F404</a></li> <li><a href="/wiki/Rolls-Royce_Turbomeca_Adour" title="Rolls-Royce Turbomeca Adour">F405</a></li> <li><a href="/wiki/Teledyne_CAE_F408" title="Teledyne CAE F408">F408</a></li> <li><a href="/wiki/General_Electric_F404" title="General Electric F404">F412</a></li> <li><a href="/wiki/General_Electric_F414" title="General Electric F414">F414</a></li> <li><a href="/w/index.php?title=Williams_International_F415&action=edit&redlink=1" class="new" title="Williams International F415 (page does not exist)">F415</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Adaptive_cycle_engine" class="mw-redirect" title="Adaptive cycle engine">Adaptive cycle engines</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/General_Electric_XA100" title="General Electric XA100">XA100</a></li> <li><a href="/wiki/Pratt_%26_Whitney_XA101" title="Pratt & Whitney XA101">XA101</a></li> <li><a href="/wiki/General_Electric_XA102" title="General Electric XA102">XA102</a></li> <li><a href="/wiki/Pratt_%26_Whitney_XA103" title="Pratt & Whitney XA103">XA103</a></li></ul> </div></td></tr></tbody></table></div>    </div><noscript><img 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