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data-event-name="pinnable-header.vector-appearance.unpin">hide</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><table class="infobox" style="width:25.5em;border-spacing:2px;"> <tbody><tr> <th colspan="2" style="text-align: center; font-size: 125%;">T61 / 550-B1 </th></tr> <tr> <th>Type </th> <td><a href="/wiki/Turboprop" title="Turboprop">Turboprop</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> </td></tr> <tr> <th><span class="nowrap">Major applications</span> </th> <td>Lockheed GL-207 Super Hercules </td></tr> <tr> <th>Status </th> <td>Canceled </td></tr> <tr> <th><span class="nowrap">Number built</span> </th> <td>4 </td></tr> </tbody></table> <p>The <b>Allison T61</b> (known internally as the <b>Allison 550-B1</b>)<sup id="cite_ref-AW19590420_1-0" class="reference"><a href="#cite_note-AW19590420-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> was a 6,500-shaft-horsepower (4,800-kilowatt) turboprop engine that was to power the 1959 version of the proposed Lockheed Super Hercules military and civil freight aircraft. The <a href="/wiki/U.S._Air_Force" class="mw-redirect" title="U.S. Air Force">U.S. Air Force</a> (USAF) had helped Allison fund the development of the T61 for four years. Lockheed had received orders from <a href="/wiki/Pan_American_World_Airways" class="mw-redirect" title="Pan American World Airways">Pan American World Airways</a> and <a href="/wiki/Slick_Airways" title="Slick Airways">Slick Airways</a> for a total of 18 aircraft, but both orders were contingent on the military ordering the aircraft by September 30, 1959, around the date that the USAF's engine development contract expired.<sup id="cite_ref-AW19591005_2-0" class="reference"><a href="#cite_note-AW19591005-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> The development contract was extended temporarily to November 30, 1959, but the T61 development effort was canceled by January 1960, after USD$37.5 million had been put into the engine's development.<sup id="cite_ref-AW19600111_3-0" class="reference"><a href="#cite_note-AW19600111-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> Four T61 engines had run on the test stand at the time of cancellation.<sup id="cite_ref-AW19591005_2-1" class="reference"><a href="#cite_note-AW19591005-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p><p>The Allison T61 produced 6,500 equivalent shp (4,800 kW) at takeoff, of which 6,102 shp (4,550 kW) came from the propeller, with 995 pounds (451 kg) of residual jet thrust. It had a similar appearance to the <a href="/wiki/Allison_T56" title="Allison T56">Allison T56</a> but with a split compressor section instead of a single stage. The T61 improved on the <a href="/wiki/Power-to-weight_ratio" title="Power-to-weight ratio">power-to-weight ratio</a> of the T56 by 30%.<sup id="cite_ref-AW19591005_2-2" class="reference"><a href="#cite_note-AW19591005-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> The Air Force had also given Allison's Aeroproducts Operations division a USD $4 million contract to develop a <style data-mw-deduplicate="TemplateStyles:r1154941027">.mw-parser-output .frac{white-space:nowrap}.mw-parser-output .frac .num,.mw-parser-output .frac .den{font-size:80%;line-height:0;vertical-align:super}.mw-parser-output .frac .den{vertical-align:sub}.mw-parser-output .sr-only{border:0;clip:rect(0,0,0,0);clip-path:polygon(0px 0px,0px 0px,0px 0px);height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;width:1px}</style><span class="frac">16<span class="sr-only">+</span><span class="num">1</span>⁄<span class="den">2</span></span> ft diameter (5.0 m), four-bladed propeller to use on the T61-powered Super Hercules.<sup id="cite_ref-AllisoNews19590626_4-0" class="reference"><a href="#cite_note-AllisoNews19590626-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Specifications">Specifications</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Allison_T61&action=edit&section=1" title="Edit section: Specifications"><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> Aviation Week, October 5, 1959, page 30<sup id="cite_ref-AW19591005_2-3" class="reference"><a href="#cite_note-AW19591005-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> and the 1960 Aerospace Year Book, page 91<sup id="cite_ref-AIA1960_5-0" class="reference"><a href="#cite_note-AIA1960-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup class="reference nowrap"><span title="Page: 91">: <a rel="nofollow" class="external text" href="https://www.aia-aerospace.org/wp-content/uploads/2016/06/THE-1960-AEROSPACE-YEAR-BOOK.pdf#page=92">91</a> </span></sup> and 375<sup id="cite_ref-AIA1960_5-1" class="reference"><a href="#cite_note-AIA1960-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup class="reference nowrap"><span title="Page: 375">: <a rel="nofollow" class="external text" href="https://www.aia-aerospace.org/wp-content/uploads/2016/06/THE-1960-AEROSPACE-YEAR-BOOK.pdf#page=376">375</a> </span></sup></p> <div class="mw-heading mw-heading4"><h4 id="General_characteristics">General characteristics</h4></div> <ul><li><b>Type:</b> Twin-spool <a href="/wiki/Turboprop" title="Turboprop">turboprop</a></li> <li><b>Length:</b> 142 in (3,600 mm)</li> <li><b>Diameter:</b> 33 in (840 mm)</li> <li><b>Dry weight:</b> 2,240 lb (1,020 kg)</li></ul> <div class="mw-heading mw-heading4"><h4 id="Components">Components</h4></div> <ul><li><b>Compressor:</b> 9-stage high pressure, 6-stage low pressure</li> <li><b><a href="/wiki/Turbine" title="Turbine">Turbine</a>:</b> 2-stage high pressure, 3-stage low pressure</li></ul> <div class="mw-heading mw-heading4"><h4 id="Performance">Performance</h4></div> <ul><li><b>Maximum power output:</b> <i>Takeoff</i>: 6,500 equivalent shp (4,800 kW) @10,400 <a href="/wiki/Rpm" class="mw-redirect" title="Rpm">rpm</a>; <i>90% cruise</i>: 5,070 equivalent shp (3,780 kW)</li> <li><b>Turbine inlet temperature:</b> 1,855 °F (1,013 °C; 2,315 °R; 1,286 K)</li> <li><b><a href="/wiki/Thrust_specific_fuel_consumption" class="mw-redirect" title="Thrust specific fuel consumption">Specific fuel consumption</a>:</b> <i>Takeoff</i>: 0.500 lb/(hp⋅h) (0.227 kg/(hp⋅h); 0.304 kg/kWh); <i>Cruise (35,000 ft altitude (11,000 m), 320 kn (370 mph; 590 km/h))</i>: 0.51 lb/(hp⋅h) (0.23 kg/(hp⋅h); 0.31 kg/kWh)</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_T61&action=edit&section=2" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Allison_T56" title="Allison T56">Allison T56</a></li> <li><a href="/wiki/Pratt_%26_Whitney_T34" title="Pratt & Whitney T34">Pratt & Whitney T34</a></li> <li><a href="/wiki/Rolls-Royce_Tyne" title="Rolls-Royce Tyne">Rolls-Royce Tyne</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=Allison_T61&action=edit&section=3" 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-AW19590420-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-AW19590420_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://archive.org/details/Aviation_Week_1959-04-20/page/n20">"Cherington foresees airline fare cuts"</a>. <i><a href="/wiki/Aviation_Week" class="mw-redirect" title="Aviation Week">Aviation Week</a></i>. Vol. 70, no. 16. Las Vegas, Nevada, U.S.A. April 20, 1959. pp. 40–41. <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/0005-2175">0005-2175</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Aviation+Week&rft.atitle=Cherington+foresees+airline+fare+cuts&rft.volume=70&rft.issue=16&rft.pages=40-41&rft.date=1959-04-20&rft.issn=0005-2175&rft_id=https%3A%2F%2Farchive.org%2Fdetails%2FAviation_Week_1959-04-20%2Fpage%2Fn20&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAllison+T61" class="Z3988"></span></span> </li> <li id="cite_note-AW19591005-2"><span class="mw-cite-backlink">^ <a href="#cite_ref-AW19591005_2-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-AW19591005_2-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-AW19591005_2-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-AW19591005_2-3"><sup><i><b>d</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation magazine cs1"><a rel="nofollow" class="external text" href="https://archive.org/details/Aviation_Week_1959-10-05/page/n16">"Contract end clouds T61 future"</a>. <i><a href="/wiki/Aviation_Week" class="mw-redirect" title="Aviation Week">Aviation Week</a></i>. Vol. 71, no. 14. Washington, D.C., U.S.A. October 5, 1959. p. 33. <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/0005-2175">0005-2175</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Aviation+Week&rft.atitle=Contract+end+clouds+T61+future&rft.volume=71&rft.issue=14&rft.pages=33&rft.date=1959-10-05&rft.issn=0005-2175&rft_id=https%3A%2F%2Farchive.org%2Fdetails%2FAviation_Week_1959-10-05%2Fpage%2Fn16&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAllison+T61" class="Z3988"></span></span> </li> <li id="cite_note-AW19600111-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-AW19600111_3-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation magazine cs1"><a rel="nofollow" class="external text" href="https://archive.org/details/Aviation_Week_1960-01-11/page/n15">"Air Force cancels T61 development program"</a>. <i><a href="/wiki/Aviation_Week" class="mw-redirect" title="Aviation Week">Aviation Week</a></i>. Vol. 72, no. 2. Washington, D.C., U.S.A. January 11, 1960. p. 30. <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/0005-2175">0005-2175</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Aviation+Week&rft.atitle=Air+Force+cancels+T61+development+program&rft.volume=72&rft.issue=2&rft.pages=30&rft.date=1960-01-11&rft.issn=0005-2175&rft_id=https%3A%2F%2Farchive.org%2Fdetails%2FAviation_Week_1960-01-11%2Fpage%2Fn15&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAllison+T61" class="Z3988"></span></span> </li> <li id="cite_note-AllisoNews19590626-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-AllisoNews19590626_4-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation magazine cs1"><a rel="nofollow" class="external text" href="https://indianamemory.contentdm.oclc.org/digital/collection/AT/id/4426/rec/1">"Air Force awards $4,000,000 propeller contract to A. O."</a> <i>AllisoNews</i>. Vol. 18, no. 51. June 26, 1959. 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=Air+Force+awards+%244%2C000%2C000+propeller+contract+to+A.+O.&rft.volume=18&rft.issue=51&rft.pages=1&rft.date=1959-06-26&rft_id=info%3Aoclcnum%2F42343144&rft_id=https%3A%2F%2Findianamemory.contentdm.oclc.org%2Fdigital%2Fcollection%2FAT%2Fid%2F4426%2Frec%2F1&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAllison+T61" class="Z3988"></span></span> </li> <li id="cite_note-AIA1960-5"><span class="mw-cite-backlink">^ <a href="#cite_ref-AIA1960_5-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-AIA1960_5-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFHannaum1960" class="citation book cs1">Hannaum, George (1960). <a rel="nofollow" class="external text" href="https://www.aia-aerospace.org/wp-content/uploads/2016/06/THE-1960-AEROSPACE-YEAR-BOOK.pdf"><i>The 1960 Aerospace Year Book</i></a> <span class="cs1-format">(PDF)</span> (41st ed.). American Aviation Publications, Inc. <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/317228872">317228872</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=The+1960+Aerospace+Year+Book&rft.edition=41st&rft.pub=American+Aviation+Publications%2C+Inc.&rft.date=1960&rft_id=info%3Aoclcnum%2F317228872&rft.aulast=Hannaum&rft.aufirst=George&rft_id=https%3A%2F%2Fwww.aia-aerospace.org%2Fwp-content%2Fuploads%2F2016%2F06%2FTHE-1960-AEROSPACE-YEAR-BOOK.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAllison+T61" class="Z3988"></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="Bibliography">Bibliography</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Allison_T61&action=edit&section=4" title="Edit section: Bibliography"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239549316">.mw-parser-output .refbegin{margin-bottom:0.5em}.mw-parser-output .refbegin-hanging-indents>ul{margin-left:0}.mw-parser-output .refbegin-hanging-indents>ul>li{margin-left:0;padding-left:3.2em;text-indent:-3.2em}.mw-parser-output .refbegin-hanging-indents ul,.mw-parser-output .refbegin-hanging-indents ul li{list-style:none}@media(max-width:720px){.mw-parser-output .refbegin-hanging-indents>ul>li{padding-left:1.6em;text-indent:-1.6em}}.mw-parser-output .refbegin-columns{margin-top:0.3em}.mw-parser-output .refbegin-columns ul{margin-top:0}.mw-parser-output .refbegin-columns li{page-break-inside:avoid;break-inside:avoid-column}@media screen{.mw-parser-output .refbegin{font-size:90%}}</style><div class="refbegin" style=""> <ul><li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation magazine cs1"><a rel="nofollow" class="external text" href="https://archive.org/details/Aviation_Week_1959-10-19/page/n24">"Airline observer"</a>. <i><a href="/wiki/Aviation_Week" class="mw-redirect" title="Aviation Week">Aviation Week</a></i>. Vol. 71, no. 16. October 19, 1959. p. 49. <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/0005-2175">0005-2175</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Aviation+Week&rft.atitle=Airline+observer&rft.volume=71&rft.issue=16&rft.pages=49&rft.date=1959-10-19&rft.issn=0005-2175&rft_id=https%3A%2F%2Farchive.org%2Fdetails%2FAviation_Week_1959-10-19%2Fpage%2Fn24&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAllison+T61" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFButz,_Jr.1959" class="citation magazine cs1">Butz, Jr., J.S. (June 15, 1959). <a rel="nofollow" class="external text" href="https://archive.org/details/Aviation_Week_1959-06-15/page/n31">"C-130 Hercules lengthened to increase long-range missions"</a>. <i><a href="/wiki/Aviation_Week" class="mw-redirect" title="Aviation Week">Aviation Week</a></i>. Vol. 70, no. 24. p. 62. <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/0005-2175">0005-2175</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Aviation+Week&rft.atitle=C-130+Hercules+lengthened+to+increase+long-range+missions&rft.volume=70&rft.issue=24&rft.pages=62&rft.date=1959-06-15&rft.issn=0005-2175&rft.aulast=Butz%2C+Jr.&rft.aufirst=J.S.&rft_id=https%3A%2F%2Farchive.org%2Fdetails%2FAviation_Week_1959-06-15%2Fpage%2Fn31&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAllison+T61" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation magazine cs1"><a rel="nofollow" class="external text" href="https://archive.org/details/Aviation_Week_1958-11-17/page/n11">"Industry observer"</a>. <i><a href="/wiki/Aviation_Week" class="mw-redirect" title="Aviation Week">Aviation Week</a></i>. Vol. 69, no. 20. November 17, 1958. p. 23. <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/0005-2175">0005-2175</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Aviation+Week&rft.atitle=Industry+observer&rft.volume=69&rft.issue=20&rft.pages=23&rft.date=1958-11-17&rft.issn=0005-2175&rft_id=https%3A%2F%2Farchive.org%2Fdetails%2FAviation_Week_1958-11-17%2Fpage%2Fn11&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAllison+T61" class="Z3988"></span></li></ul> </div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Allison_T61&action=edit&section=5" title="Edit section: External links"><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="CITEREFLockheed_Corporation1959" class="citation magazine cs1"><a href="/wiki/Lockheed_Corporation" title="Lockheed Corporation">Lockheed Corporation</a> (November 1959). <a rel="nofollow" class="external text" href="https://hdl.handle.net/2027/osu.32435061974283?urlappend=%3Bseq=674">"New Lockheed Super Hercules: Big brother of U.S. Tactical Airlift champ"</a>. <i><a href="/wiki/Air_Force_Magazine" class="mw-redirect" title="Air Force Magazine">Air Force Magazine</a></i>. Vol. 42, no. 11. pp. 12–13. <a href="/wiki/Hdl_(identifier)" class="mw-redirect" title="Hdl (identifier)">hdl</a>:<a rel="nofollow" class="external text" href="https://hdl.handle.net/2027%2Fosu.32435061974283">2027/osu.32435061974283</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/0730-6784">0730-6784</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Air+Force+Magazine&rft.atitle=New+Lockheed+Super+Hercules%3A+Big+brother+of+U.S.+Tactical+Airlift+champ&rft.volume=42&rft.issue=11&rft.pages=12-13&rft.date=1959-11&rft_id=info%3Ahdl%2F2027%2Fosu.32435061974283&rft.issn=0730-6784&rft.au=Lockheed+Corporation&rft_id=https%3A%2F%2Fhdl.handle.net%2F2027%2Fosu.32435061974283%3Furlappend%3D%253Bseq%3D674&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAllison+T61" 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 .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul dl,.mw-parser-output .hlist ul ol,.mw-parser-output .hlist ul ul{display:inline}.mw-parser-output .hlist .mw-empty-li{display:none}.mw-parser-output .hlist dt::after{content:": "}.mw-parser-output .hlist dd::after,.mw-parser-output .hlist li::after{content:" · ";font-weight:bold}.mw-parser-output .hlist dd:last-child::after,.mw-parser-output .hlist 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.navbox-odd{background-color:transparent}.mw-parser-output .navbox .hlist td dl,.mw-parser-output .navbox .hlist td ol,.mw-parser-output .navbox .hlist td ul,.mw-parser-output .navbox td.hlist dl,.mw-parser-output .navbox td.hlist ol,.mw-parser-output .navbox td.hlist ul{padding:0.125em 0}.mw-parser-output .navbox .navbar{display:block;font-size:100%}.mw-parser-output .navbox-title .navbar{float:left;text-align:left;margin-right:0.5em}body.skin--responsive .mw-parser-output .navbox-image img{max-width:none!important}@media print{body.ns-0 .mw-parser-output .navbox{display:none!important}}</style></div><div role="navigation" class="navbox" aria-labelledby="Allison_Engine_Company_aircraft_engines" style="padding:3px"><table class="nowraplinks mw-collapsible mw-collapsed navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="3"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><style data-mw-deduplicate="TemplateStyles:r1239400231">.mw-parser-output .navbar{display:inline;font-size:88%;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output .navbar-brackets::before{margin-right:-0.125em;content:"[ "}.mw-parser-output .navbar-brackets::after{margin-left:-0.125em;content:" ]"}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbar a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:114%;margin:0 7em}.mw-parser-output .navbar-ct-mini{font-size:114%;margin:0 4em}html.skin-theme-clientpref-night .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template: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_engines" 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 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_T40" title="Allison T40">T40</a></li> <li><a href="/wiki/Allison_T54" class="mw-redirect" title="Allison T54">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 class="mw-selflink selflink">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="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 class="mw-selflink selflink">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 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 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 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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