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class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Variants</span> </div> </a> <ul id="toc-Variants-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Applications" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Applications"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Applications</span> </div> </a> <ul id="toc-Applications-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Engines_on_display" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Engines_on_display"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Engines on display</span> </div> </a> <ul id="toc-Engines_on_display-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Specifications_(R-4360-51VDT)" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a 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href="#Components"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.2</span> <span>Components</span> </div> </a> <ul id="toc-Components-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Performance" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Performance"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.3</span> <span>Performance</span> </div> </a> <ul id="toc-Performance-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-See_also" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#See_also"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</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 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Available in 14 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-14" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">14 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%A8%D8%B1%D8%A7%D8%AA_%D8%A2%D9%86%D8%AF_%D9%88%D9%8A%D8%AA%D9%86%D9%8A_%D8%A2%D8%B1-4360_%D9%88%D8%A7%D8%B3%D8%A8_%D9%85%D9%8A%D8%AC%D8%B1" title="برات آند ويتني آر-4360 واسب ميجر – Arabic" lang="ar" hreflang="ar" data-title="برات آند ويتني آر-4360 واسب ميجر" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Pratt_%26_Whitney_R-4360" title="Pratt & Whitney R-4360 – Czech" lang="cs" hreflang="cs" data-title="Pratt & Whitney R-4360" 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/Pratt_%26_Whitney_R-4360" title="Pratt & Whitney R-4360 – German" lang="de" hreflang="de" data-title="Pratt & Whitney R-4360" 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/Pratt_%26_Whitney_R-4360_Wasp_Major" title="Pratt & Whitney R-4360 Wasp Major – Spanish" lang="es" hreflang="es" data-title="Pratt & Whitney R-4360 Wasp Major" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%BE%D8%B1%D8%AA_%D8%A7%D9%86%D8%AF_%D9%88%DB%8C%D8%AA%D9%86%DB%8C_%D8%A2%D8%B1-%DB%B4%DB%B3%DB%B6%DB%B0_%D9%88%D8%A7%D8%B3%D9%BE_%D9%85%DB%8C%D8%AC%D9%88%D8%B1" title="پرت اند ویتنی آر-۴۳۶۰ واسپ میجور – Persian" lang="fa" hreflang="fa" data-title="پرت اند ویتنی آر-۴۳۶۰ واسپ میجور" 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/Pratt_%26_Whitney_R-4360" title="Pratt & Whitney R-4360 – French" lang="fr" hreflang="fr" data-title="Pratt & Whitney R-4360" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Pratt_%26_Whitney_R-4360" title="Pratt & Whitney R-4360 – Italian" lang="it" hreflang="it" data-title="Pratt & Whitney R-4360" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Pratt_%26_Whitney_R%E2%80%934360_Wasp_Major" title="Pratt & Whitney R–4360 Wasp Major – Hungarian" lang="hu" hreflang="hu" data-title="Pratt & Whitney R–4360 Wasp Major" data-language-autonym="Magyar" data-language-local-name="Hungarian" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%83%97%E3%83%A9%E3%83%83%E3%83%88%E3%83%BB%E3%82%A2%E3%83%B3%E3%83%89%E3%83%BB%E3%83%9B%E3%82%A4%E3%83%83%E3%83%88%E3%83%8B%E3%83%BC_R-4360" title="プラット・アンド・ホイットニー R-4360 – Japanese" lang="ja" hreflang="ja" data-title="プラット・アンド・ホイットニー R-4360" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Pratt_%26_Whitney_R-4360" title="Pratt & Whitney R-4360 – Polish" lang="pl" hreflang="pl" data-title="Pratt & Whitney R-4360" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/Pratt_%26_Whitney_R-4360_Wasp_Major" title="Pratt & Whitney R-4360 Wasp Major – Russian" lang="ru" hreflang="ru" data-title="Pratt & Whitney R-4360 Wasp Major" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Pratt_%26_Whitney_R-4360_Wasp_Major" title="Pratt & Whitney R-4360 Wasp Major – Slovenian" lang="sl" hreflang="sl" data-title="Pratt & Whitney R-4360 Wasp Major" data-language-autonym="Slovenščina" data-language-local-name="Slovenian" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Pratt_%26_Whitney_R-4360_Wasp_Major" title="Pratt & Whitney R-4360 Wasp Major – Finnish" lang="fi" hreflang="fi" data-title="Pratt & Whitney R-4360 Wasp Major" data-language-autonym="Suomi" data-language-local-name="Finnish" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a 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searchaux" style="display:none">R-28 piston aircraft engine family</div> <table class="infobox" style="width:25.5em;border-spacing:2px;"> <tbody><tr> <th colspan="2" style="text-align: center; font-size: 125%;">R-4360 Wasp Major </th></tr> <tr> <td colspan="2" style="text-align: center;"><span typeof="mw:File"><a href="/wiki/File:Pratt_%26_Whitney_R-4360_Wasp_Major_1.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/3c/Pratt_%26_Whitney_R-4360_Wasp_Major_1.jpg/300px-Pratt_%26_Whitney_R-4360_Wasp_Major_1.jpg" decoding="async" width="300" height="225" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/3c/Pratt_%26_Whitney_R-4360_Wasp_Major_1.jpg/450px-Pratt_%26_Whitney_R-4360_Wasp_Major_1.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/3c/Pratt_%26_Whitney_R-4360_Wasp_Major_1.jpg/600px-Pratt_%26_Whitney_R-4360_Wasp_Major_1.jpg 2x" data-file-width="1600" data-file-height="1200" /></a></span> </td></tr> <tr> <td colspan="2" style="border-bottom: 1px solid #aaa;text-align:center;">Pratt & Whitney R-4360 Wasp Major </td></tr> <tr> <th>Type </th> <td>Four-row <a href="/wiki/Radial_engine" title="Radial engine">Radial engine</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/Pratt_%26_Whitney" title="Pratt & Whitney">Pratt & Whitney</a> </td></tr> <tr> <th>First run </th> <td>1944 </td></tr> <tr> <th><span class="nowrap">Major applications</span> </th> <td><a href="/wiki/Boeing_377" class="mw-redirect" title="Boeing 377">Boeing 377</a> <br /> <a href="/wiki/Boeing_B-50_Superfortress" title="Boeing B-50 Superfortress">Boeing B-50 Superfortress</a> <br /> <a href="/wiki/Boeing_C-97_Stratofreighter" title="Boeing C-97 Stratofreighter">Boeing C-97 Stratofreighter</a> <br /> <a href="/wiki/Convair_B-36" class="mw-redirect" title="Convair B-36">Convair B-36</a> <br /> <a href="/wiki/Fairchild_C-119_Flying_Boxcar" title="Fairchild C-119 Flying Boxcar">Fairchild C-119 Flying Boxcar</a> </td></tr> <tr> <th><span class="nowrap">Number built</span> </th> <td>18,697 </td></tr> <tr> <th><span class="nowrap">Developed from</span> </th> <td><a href="/wiki/Pratt_%26_Whitney_R-2180-A_Twin_Hornet" title="Pratt & Whitney R-2180-A Twin Hornet">Pratt & Whitney R-2180-A Twin Hornet</a> </td></tr> <tr> <th><span class="nowrap">Developed into</span> </th> <td><a href="/wiki/Pratt_%26_Whitney_R-2180-E_Twin_Wasp_E" title="Pratt & Whitney R-2180-E Twin Wasp E">Pratt & Whitney R-2180-E Twin Wasp E</a> </td></tr></tbody></table> <p>The <b>Pratt & Whitney R-4360 Wasp Major</b> is an American 28-cylinder four-row <a href="/wiki/Radial_engine" title="Radial engine">radial</a> <a href="/wiki/Reciprocating_engine" title="Reciprocating engine">piston</a> <a href="/wiki/Aircraft_engine" title="Aircraft engine">aircraft engine</a> designed and built during <a href="/wiki/World_War_II" title="World War II">World War II</a>. At 4,362.5 cu in (71.5 L), it is the largest-displacement aviation piston engine to be mass-produced in the United States, and at 4,300 hp (3,200 kW) the most powerful. First run in 1944, it was the last of the <a href="/wiki/Pratt_%26_Whitney" title="Pratt & Whitney">Pratt & Whitney</a> <a href="/wiki/Pratt_%26_Whitney_Wasp_series" title="Pratt & Whitney Wasp series">Wasp family</a>, and the culmination of its maker's <a href="/wiki/Piston" title="Piston">piston</a> engine technology. </p><p>The war was over before it could power airplanes into combat. It powered many of the last generation of large piston-engined aircraft before <a href="/wiki/Turbojet" title="Turbojet">turbojets</a>, but was supplanted by equivalent (and superior) powered <a href="/wiki/Turboprop" title="Turboprop">turboprops</a> (such as the <a href="/wiki/Allison_T56" title="Allison T56">Allison T56</a>). </p><p>Its main rival was the twin-row, 18-cylinder, nearly 3,350 cu in (54.9 L) displacement, up to 3,700 hp (2,800 kW) <a href="/wiki/Wright_R-3350_Duplex-Cyclone" title="Wright R-3350 Duplex-Cyclone">Wright R-3350 Duplex-Cyclone</a>, first run some seven years earlier (May 1937). </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Design_and_development">Design and development</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Pratt_%26_Whitney_R-4360_Wasp_Major&action=edit&section=1" title="Edit section: Design and development"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The R-4360 was a 28-<a href="/wiki/Cylinder_(engine)" title="Cylinder (engine)">cylinder</a> four-row air-cooled radial engine. Each row of seven air-cooled cylinders possessed a slight angular offset from the previous, forming a semi-helical arrangement to facilitate effective airflow cooling of the cylinder rows behind them, inspiring the engine's "corncob" nickname.<sup id="cite_ref-FOOTNOTEWhite1995212_1-0" class="reference"><a href="#cite_note-FOOTNOTEWhite1995212-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> A mechanical <a href="/wiki/Supercharger" title="Supercharger">supercharger</a> geared at 6.374:1 ratio to engine speed provided forced induction, while the <a href="/wiki/Propeller_(aircraft)" class="mw-redirect" title="Propeller (aircraft)">propeller</a> was geared at 0.375:1 so that the tips did not reach inefficient <a href="/wiki/Supersonic" class="mw-redirect" title="Supersonic">supersonic</a> speeds. </p><p>The engine was a technological challenge and the first product from Pratt and Whitney's new plant near <a href="/wiki/Kansas_City,_Missouri" title="Kansas City, Missouri">Kansas City, Missouri</a>.<sup id="cite_ref-FOOTNOTEGunston2006132_2-0" class="reference"><a href="#cite_note-FOOTNOTEGunston2006132-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> The four-row configuration had severe thermal problems that decreased reliability, with an intensive maintenance regime involving frequent replacement of cylinders required.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (September 2020)">citation needed</span></a></i>]</sup> Large cooling flaps were required, which decreased aerodynamic efficiency, putting extra demands on engine power when cooling needs were greatest. Owing in large part to the maintenance requirements of the R-4360, all airplanes equipped with it were costly to operate and suffered decreased availability. Its commercial application in the <a href="/wiki/Boeing_377_Stratocruiser" title="Boeing 377 Stratocruiser">Boeing Stratocruiser</a> was unprofitable without government subsidy.<sup id="cite_ref-gann_3-0" class="reference"><a href="#cite_note-gann-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> Abandonment of the Stratocruiser was almost immediate when jet aircraft became available, while aircraft with smaller powerplants such as the <a href="/wiki/Lockheed_Constellation" title="Lockheed Constellation">Lockheed Constellation</a> and <a href="/wiki/Douglas_DC-6" title="Douglas DC-6">Douglas DC-6</a> remained in service well into the jet era. </p><p><a href="/wiki/Engine_displacement" title="Engine displacement">Engine displacement</a> was 4,362.5 cu in (71.5 L), hence the model designation. Initial models developed 3,000 hp (2,200 kW), and later models 3,500 hp (2,600 kW). One model that used two large <a href="/wiki/Turbocharger" title="Turbocharger">turbochargers</a> in addition to the supercharger delivered 4,300 horsepower (3,200 kW). Engines weighed 3,482–3,870 lb (1,579–1,755 kg), giving a <a href="/wiki/Power-to-weight_ratio" title="Power-to-weight ratio">power-to-weight ratio</a> of 1.11 hp/lb (1.82 kW/kg). </p><p>Wasp Majors were produced between 1944 and 1955; 18,697 were built. </p><p>A derivative engine, the <a href="/wiki/Pratt_%26_Whitney_R-2180-E_Twin_Wasp_E" title="Pratt & Whitney R-2180-E Twin Wasp E">Pratt & Whitney R-2180-E Twin Wasp E</a>, was essentially the R-4360 "cut in half". It had two rows of seven cylinders each, and was used on the postwar <a href="/wiki/Saab_90_Scandia" title="Saab 90 Scandia">Saab 90 Scandia</a> airliner.<sup id="cite_ref-FOOTNOTEGunston2006164_4-0" class="reference"><a href="#cite_note-FOOTNOTEGunston2006164-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </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=Pratt_%26_Whitney_R-4360_Wasp_Major&action=edit&section=2" title="Edit section: Variants"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Pratt_%26_Whitney_R-4360_Wasp_Major.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/ba/Pratt_%26_Whitney_R-4360_Wasp_Major.jpg/220px-Pratt_%26_Whitney_R-4360_Wasp_Major.jpg" decoding="async" width="220" height="165" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/ba/Pratt_%26_Whitney_R-4360_Wasp_Major.jpg/330px-Pratt_%26_Whitney_R-4360_Wasp_Major.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/ba/Pratt_%26_Whitney_R-4360_Wasp_Major.jpg/440px-Pratt_%26_Whitney_R-4360_Wasp_Major.jpg 2x" data-file-width="1600" data-file-height="1200" /></a><figcaption>Sectioned R-4360 Wasp Major</figcaption></figure> <ul><li><b>R-4360-4</b> - 2,650 hp (1,980 kW)</li> <li><b>R-4360-17</b> - 3,500 hp (2,600 kW) XB-35 and YB-35 outboard engines with 8-bladed contra-rotating propellers<sup id="cite_ref-Pape_5-0" class="reference"><a href="#cite_note-Pape-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup></li> <li><b>R-4360-20</b> - 3,500 hp (2,600 kW)</li> <li><b>R-4360-21</b> - 3,500 hp (2,600 kW) XB-35 and YB-35 inboard engines with 8-bladed contra-rotating propellers<sup id="cite_ref-Pape_5-1" class="reference"><a href="#cite_note-Pape-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup></li> <li><b>R-4360-25</b> - 3,000 hp (2,200 kW)</li> <li><b>R-4360-41</b> - 3,500 hp (2,600 kW)</li> <li><b>R-4360-45</b> - 3,500 hp (2,600 kW) YB-35 outboard engines with 4-bladed propellers<sup id="cite_ref-Pape_5-2" class="reference"><a href="#cite_note-Pape-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup></li> <li><b>R-4360-47</b> - 3,500 hp (2,600 kW) YB-35 inboard engines with 4-bladed propellers<sup id="cite_ref-Pape_5-3" class="reference"><a href="#cite_note-Pape-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup></li> <li><b>R-4360-51 VDT</b> - "Variable Discharge Turbine" 4,300 hp (3,210 kW). Intended for B-36C. Used on Boeing YB-50C Superfortress. <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> <li><b>R-4360-53</b> - 3,800 hp (2,800 kW)</li> <li><b>R-4360-B3</b> - 3,500 hp (2,600 kW)</li> <li><b>R-4360-B6</b> - 3,500 hp (2,600 kW)</li></ul> <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=Pratt_%26_Whitney_R-4360_Wasp_Major&action=edit&section=3" title="Edit section: Applications"><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: 30em;"> <ul><li><a href="/wiki/Aero_Spacelines_Mini_Guppy" title="Aero Spacelines Mini Guppy">Aero Spacelines Mini Guppy</a></li> <li><a href="/wiki/Aero_Spacelines_Pregnant_Guppy" title="Aero Spacelines Pregnant Guppy">Aero Spacelines Pregnant Guppy</a></li> <li><a href="/wiki/Boeing_377_Stratocruiser" title="Boeing 377 Stratocruiser">Boeing 377 Stratocruiser</a></li> <li><a href="/wiki/Boeing_B-50_Superfortress" title="Boeing B-50 Superfortress">Boeing B-50 Superfortress</a></li> <li><a href="/wiki/Boeing_C-97_Stratofreighter" title="Boeing C-97 Stratofreighter">Boeing C-97 Stratofreighter</a></li> <li><a href="/wiki/Boeing_KC-97_Stratofreighter" title="Boeing KC-97 Stratofreighter">Boeing KC-97 Stratofreighter</a></li> <li><a href="/wiki/Boeing_XF8B" title="Boeing XF8B">Boeing XF8B</a></li> <li><a href="/wiki/Boeing_XB-44" class="mw-redirect" title="Boeing XB-44">Boeing XB-44 Superfortress</a></li> <li><a href="/wiki/Convair_B-36_Peacemaker" title="Convair B-36 Peacemaker">Convair B-36 Peacemaker</a></li> <li><a href="/wiki/Convair_XC-99" title="Convair XC-99">Convair XC-99</a></li> <li><a href="/wiki/Curtiss_XBTC" title="Curtiss XBTC">Curtiss XBTC</a></li> <li><a href="/wiki/Curtiss_XP-71" title="Curtiss XP-71">Curtiss XP-71</a> (not built)</li> <li><a href="/wiki/Douglas_C-74_Globemaster" title="Douglas C-74 Globemaster">Douglas C-74 Globemaster</a></li> <li><a href="/wiki/Douglas_C-124_Globemaster_II" title="Douglas C-124 Globemaster II">Douglas C-124 Globemaster II</a></li> <li><a href="/wiki/Douglas_XTB2D_Skypirate" title="Douglas XTB2D Skypirate">Douglas XTB2D Skypirate</a></li> <li><a href="/wiki/Fairchild_C-119_Flying_Boxcar" title="Fairchild C-119 Flying Boxcar">Fairchild C-119 Flying Boxcar</a></li> <li><a href="/wiki/Fairchild_XC-120_Packplane" title="Fairchild XC-120 Packplane">Fairchild XC-120 Packplane</a></li> <li><a href="/wiki/Goodyear_F2G_Corsair" title="Goodyear F2G Corsair">Goodyear F2G "Super" Corsair</a></li> <li><a href="/wiki/Hughes_H-4_Hercules" title="Hughes H-4 Hercules">Hughes H-4 Hercules</a> ("Spruce Goose")</li> <li><a href="/wiki/Hughes_XF-11" title="Hughes XF-11">Hughes XF-11</a></li> <li><a href="/wiki/Lockheed_R6V_Constitution" title="Lockheed R6V Constitution">Lockheed R6V Constitution</a></li> <li><a href="/wiki/Martin_AM_Mauler" title="Martin AM Mauler">Martin AM Mauler</a></li> <li><a href="/wiki/Martin_JRM_Mars" title="Martin JRM Mars">Martin JRM Mars</a></li> <li><a href="/wiki/Martin_P4M_Mercator" title="Martin P4M Mercator">Martin P4M Mercator</a></li> <li><a href="/wiki/Northrop_YB-35" title="Northrop YB-35">Northrop YB-35</a></li> <li><a href="/wiki/Republic_XP-72" title="Republic XP-72">Republic XP-72</a></li> <li><a href="/wiki/Republic_XF-12_Rainbow" title="Republic XF-12 Rainbow">Republic XF-12 Rainbow</a></li> <li><a href="/wiki/SNCASE_Armagnac" title="SNCASE Armagnac">SNCASE SE-2010 Armagnac</a></li> <li><a href="/wiki/Vultee_XA-41" title="Vultee XA-41">Vultee XA-41</a></li></ul></div> <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=Pratt_%26_Whitney_R-4360_Wasp_Major&action=edit&section=4" title="Edit section: Engines on display"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Pratt_%26_Whitney_Wasp_Major_R-4360_Engine.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/eb/Pratt_%26_Whitney_Wasp_Major_R-4360_Engine.jpg/220px-Pratt_%26_Whitney_Wasp_Major_R-4360_Engine.jpg" decoding="async" width="220" height="124" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/eb/Pratt_%26_Whitney_Wasp_Major_R-4360_Engine.jpg/330px-Pratt_%26_Whitney_Wasp_Major_R-4360_Engine.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/eb/Pratt_%26_Whitney_Wasp_Major_R-4360_Engine.jpg/440px-Pratt_%26_Whitney_Wasp_Major_R-4360_Engine.jpg 2x" data-file-width="5312" data-file-height="2988" /></a><figcaption>R-4360 cutaway</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Air_Zoo_December_2019_147_(Pratt_%26_Whitney_R-4360-4_Wasp_Major).jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a9/Air_Zoo_December_2019_147_%28Pratt_%26_Whitney_R-4360-4_Wasp_Major%29.jpg/220px-Air_Zoo_December_2019_147_%28Pratt_%26_Whitney_R-4360-4_Wasp_Major%29.jpg" decoding="async" width="220" height="147" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a9/Air_Zoo_December_2019_147_%28Pratt_%26_Whitney_R-4360-4_Wasp_Major%29.jpg/330px-Air_Zoo_December_2019_147_%28Pratt_%26_Whitney_R-4360-4_Wasp_Major%29.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a9/Air_Zoo_December_2019_147_%28Pratt_%26_Whitney_R-4360-4_Wasp_Major%29.jpg/440px-Air_Zoo_December_2019_147_%28Pratt_%26_Whitney_R-4360-4_Wasp_Major%29.jpg 2x" data-file-width="6000" data-file-height="4000" /></a><figcaption>R-4360-4 on display at the <a href="/wiki/Air_Zoo" title="Air Zoo">Air Zoo</a></figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:20-09-072-R_4360.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c2/20-09-072-R_4360.jpg/220px-20-09-072-R_4360.jpg" decoding="async" width="220" height="134" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c2/20-09-072-R_4360.jpg/330px-20-09-072-R_4360.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c2/20-09-072-R_4360.jpg/440px-20-09-072-R_4360.jpg 2x" data-file-width="2048" data-file-height="1249" /></a><figcaption>R-4360 on display at <a href="/wiki/Museum_of_Aviation_(Warner_Robins)" title="Museum of Aviation (Warner Robins)">Museum of Aviation</a>, <a href="/wiki/Robins_AFB" class="mw-redirect" title="Robins AFB">Robins AFB</a></figcaption></figure> <ul><li>An R-4360 is on display at the <a href="/wiki/Texas_Air_Museum" title="Texas Air Museum">Texas Air Museum</a>, <a href="/wiki/Stinson_Municipal_Airport" title="Stinson Municipal Airport">Stinson Municipal Airport</a>, <a href="/wiki/San_Antonio" title="San Antonio">San Antonio</a>, <a href="/wiki/Texas" title="Texas">Texas</a></li> <li>An R-4360 is on display at the <a href="/wiki/Owls_Head_Transportation_Museum" title="Owls Head Transportation Museum">Owls Head Transportation Museum</a>, <a href="/wiki/Owls_Head,_Maine" title="Owls Head, Maine">Owls Head, Maine</a></li> <li>An R-4360 is on display at the Mid America Museum of Aviation and Transportation in <a href="/wiki/Sioux_City,_Iowa" title="Sioux City, Iowa">Sioux City, Iowa</a>.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></li> <li>An R-4360 is on display at the <a href="/wiki/Museum_of_Flight" title="Museum of Flight">Museum of Flight</a> in <a href="/wiki/Seattle,_Washington" class="mw-redirect" title="Seattle, Washington">Seattle, Washington</a>.<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-AEHSNAM_9-0" class="reference"><a href="#cite_note-AEHSNAM-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup></li> <li>An R-4360 is on display at the <a href="/wiki/Heritage_Flight_Museum" title="Heritage Flight Museum">Heritage Flight Museum</a> in <a href="/wiki/Burlington,_Washington" title="Burlington, Washington">Burlington, Washington</a>.<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup></li> <li>An R-4360 is on display at the <a href="/wiki/New_England_Air_Museum" title="New England Air Museum">New England Air Museum</a>, in <a href="/wiki/Windsor_Locks,_Connecticut" title="Windsor Locks, Connecticut">Windsor Locks, Connecticut</a>.<sup id="cite_ref-AEHSNAM_9-1" class="reference"><a href="#cite_note-AEHSNAM-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup></li> <li>An R-4360 is on display at the Museum of Alaska Transportation and Industry in <a href="/wiki/Wasilla,_Alaska" title="Wasilla, Alaska">Wasilla, Alaska</a>.<sup id="cite_ref-AEHSNAM_9-2" class="reference"><a href="#cite_note-AEHSNAM-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup></li> <li>An R-4360 is on display at the Pioneer Air Museum in <a href="/wiki/Fairbanks,_Alaska" title="Fairbanks, Alaska">Fairbanks, Alaska</a>.</li> <li>An R-4360 is on display at the <a href="/wiki/CAF_Airpower_Museum" class="mw-redirect" title="CAF Airpower Museum">CAF Airpower Museum</a> in <a href="/wiki/Dallas,_Texas" class="mw-redirect" title="Dallas, Texas">Dallas, Texas</a>.<sup id="cite_ref-AEHSNAM_9-3" class="reference"><a href="#cite_note-AEHSNAM-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup></li> <li>An R-4360 is on display at the <a href="/wiki/Air_Zoo" title="Air Zoo">Air Zoo</a> in <a href="/wiki/Kalamazoo,_Michigan" title="Kalamazoo, Michigan">Kalamazoo, Michigan</a>.<sup id="cite_ref-AEHSNAM_9-4" class="reference"><a href="#cite_note-AEHSNAM-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup></li> <li>An R-4360-4W is on display at the <a href="/wiki/Yankee_Air_Museum" class="mw-redirect" title="Yankee Air Museum">Yankee Air Museum</a> in <a href="/wiki/Belleville,_Michigan" title="Belleville, Michigan">Belleville, Michigan</a><sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup></li> <li>An R-4360-20WA is on display at the Teaneck Ignition Service in <a href="/wiki/Teaneck,_New_Jersey" title="Teaneck, New Jersey">Teaneck, New Jersey</a>.<sup id="cite_ref-AEHSNAM_9-5" class="reference"><a href="#cite_note-AEHSNAM-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup></li> <li>An R-4360-20WD is on display at the <a href="/wiki/Combat_Air_Museum" title="Combat Air Museum">Combat Air Museum</a> in <a href="/wiki/Topeka,_Kansas" title="Topeka, Kansas">Topeka, Kansas</a>.<sup id="cite_ref-CAM_12-0" class="reference"><a href="#cite_note-CAM-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup></li> <li>An R-4360-59B is on display at the <a href="/wiki/Combat_Air_Museum" title="Combat Air Museum">Combat Air Museum</a> in <a href="/wiki/Topeka,_Kansas" title="Topeka, Kansas">Topeka, Kansas</a>.<sup id="cite_ref-CAM_12-1" class="reference"><a href="#cite_note-CAM-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup></li> <li>An R-4360-69 is on display at the <a href="/wiki/Castle_Air_Museum" title="Castle Air Museum">Castle Air Museum</a> in <a href="/wiki/Atwater,_California" title="Atwater, California">Atwater, California</a>.<sup id="cite_ref-AEHSNAM_9-6" class="reference"><a href="#cite_note-AEHSNAM-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup></li> <li>An R-4360 cutaway is on display at the <a href="/wiki/Hill_Aerospace_Museum" title="Hill Aerospace Museum">Hill Aerospace Museum</a> at <a href="/wiki/Hill_Air_Force_Base" title="Hill Air Force Base">Hill Air Force Base</a> in <a href="/wiki/Roy,_Utah" title="Roy, Utah">Roy, Utah</a>.<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup></li> <li>An R-4360 cutaway is on display at the Air Victory Museum in <a href="/wiki/Lumberton,_New_Jersey" title="Lumberton, New Jersey">Lumberton, New Jersey</a>.<sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup></li> <li>An R-4360 cutaway is on display at the <a href="/wiki/Air_Zoo" title="Air Zoo">Air Zoo</a> in <a href="/wiki/Kalamazoo,_Michigan" title="Kalamazoo, Michigan">Kalamazoo, Michigan</a>.<sup id="cite_ref-AEHSNAM_9-7" class="reference"><a href="#cite_note-AEHSNAM-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup></li> <li>An R-4360 cutaway is on display at the <a href="/wiki/Museum_of_Aviation_(Warner_Robins)" title="Museum of Aviation (Warner Robins)">Museum of Aviation</a> in <a href="/wiki/Warner_Robins,_Georgia" title="Warner Robins, Georgia">Warner Robins, Georgia</a>.<sup id="cite_ref-AEHSNAM_9-8" class="reference"><a href="#cite_note-AEHSNAM-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup></li> <li>An R-4360 cutaway is on display at the <a href="/wiki/Evergreen_Aviation_and_Space_Museum" class="mw-redirect" title="Evergreen Aviation and Space Museum">Evergreen Aviation and Space Museum</a> in <a href="/wiki/McMinnville,_Oregon" title="McMinnville, Oregon">McMinnville, Oregon</a>.<sup id="cite_ref-AEHSNAM_9-9" class="reference"><a href="#cite_note-AEHSNAM-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup></li> <li>An R-4360 cutaway is on display at the <a href="/wiki/CAF_Airpower_Museum" class="mw-redirect" title="CAF Airpower Museum">CAF Airpower Museum</a> in <a href="/wiki/Dallas,_Texas" class="mw-redirect" title="Dallas, Texas">Dallas, Texas</a>.<sup id="cite_ref-AEHSNAM_9-10" class="reference"><a href="#cite_note-AEHSNAM-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup></li> <li>An R-4360 cutaway is on display at the <a href="/wiki/Pima_Air_and_Space_Museum" class="mw-redirect" title="Pima Air and Space Museum">Pima Air and Space Museum</a> in <a href="/wiki/Tucson,_Arizona" title="Tucson, Arizona">Tucson, Arizona</a>.<sup id="cite_ref-AEHSNAM_9-11" class="reference"><a href="#cite_note-AEHSNAM-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup></li> <li>An R-4360 cutaway is on display at the <a href="/wiki/Air_Force_Armament_Museum" title="Air Force Armament Museum">Air Force Armament Museum</a> at <a href="/wiki/Eglin_Air_Force_Base" title="Eglin Air Force Base">Eglin Air Force Base</a> in <a href="/wiki/Valparaiso,_Florida" title="Valparaiso, Florida">Valparaiso, Florida</a>.<sup id="cite_ref-AEHSNAM_9-12" class="reference"><a href="#cite_note-AEHSNAM-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup></li> <li>An R-4360 cutaway is on display at the <a href="/wiki/Strategic_Air_Command_%26_Aerospace_Museum" title="Strategic Air Command & Aerospace Museum">Strategic Air Command & Aerospace Museum</a> in <a href="/wiki/Ashland,_Nebraska" title="Ashland, Nebraska">Ashland, Nebraska</a>.<sup id="cite_ref-AEHSNAM_9-13" class="reference"><a href="#cite_note-AEHSNAM-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup></li> <li>An R-4360-4 cutaway is on display at the <a href="/wiki/National_Museum_of_Naval_Aviation" class="mw-redirect" title="National Museum of Naval Aviation">National Museum of Naval Aviation</a> in <a href="/wiki/Pensacola,_Florida" title="Pensacola, Florida">Pensacola, Florida</a>.<sup id="cite_ref-AEHSNAM_9-14" class="reference"><a href="#cite_note-AEHSNAM-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup></li> <li>An R-4360-59B cutaway is on display at the <a href="/wiki/Steven_F._Udvar-Hazy_Center" title="Steven F. Udvar-Hazy Center">Steven F. Udvar-Hazy Center</a> of the <a href="/wiki/National_Air_and_Space_Museum" title="National Air and Space Museum">National Air and Space Museum</a> in <a href="/wiki/Chantilly,_Virginia" title="Chantilly, Virginia">Chantilly, Virginia</a>.<sup id="cite_ref-15" class="reference"><a href="#cite_note-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup></li> <li>An R-4360-59B cutaway is on display at the <a href="/wiki/Florida_Air_Museum" title="Florida Air Museum">Florida Air Museum</a> in <a href="/wiki/Lakeland,_Florida" title="Lakeland, Florida">Lakeland, Florida</a>.<sup id="cite_ref-16" class="reference"><a href="#cite_note-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-AEHSNAM_9-15" class="reference"><a href="#cite_note-AEHSNAM-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup></li> <li>An R-4360 cutaway is on display at the <a href="/wiki/Mid-Atlantic_Air_Museum" title="Mid-Atlantic Air Museum">Mid-Atlantic Air Museum</a>, <a href="/wiki/Reading,_Pennsylvania" title="Reading, Pennsylvania">Reading, Pennsylvania</a><sup id="cite_ref-17" class="reference"><a href="#cite_note-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup></li> <li>Wreckage of an R-4360 is <a href="https://commons.wikimedia.org/wiki/Category:Stratocruiser_memorial_in_Ben_Shemen_forest" class="extiw" title="commons:Category:Stratocruiser memorial in Ben Shemen forest">on display as a memorial</a> in the Ben Shemen Forest in Israel.</li> <li>An R-4360 is on display at the presidential gallery at the <a href="/wiki/National_Museum_of_the_United_States_Air_Force" title="National Museum of the United States Air Force">National Museum of the United States Air Force</a> in <a href="/wiki/Dayton,_Ohio" title="Dayton, Ohio">Dayton, Ohio</a>.<sup id="cite_ref-18" class="reference"><a href="#cite_note-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup></li> <li>An operational R-4360 is on display at the Penngrove Power and Implement Museum in <a href="/wiki/Penngrove,_California" title="Penngrove, California">Penngrove, California</a>.<sup id="cite_ref-19" class="reference"><a href="#cite_note-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup></li> <li>Two R-4360s are on public display at the <a href="/wiki/Aerospace_Museum_of_California" title="Aerospace Museum of California">Aerospace Museum of California</a>. One is complete, the other is a cutaway.</li> <li>An operational R-4360 is on display at Nieman's Harley Rentals in <a href="/wiki/St_Helena,_California" class="mw-redirect" title="St Helena, California">St Helena, California</a><sup id="cite_ref-20" class="reference"><a href="#cite_note-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup></li></ul> <div class="mw-heading mw-heading2"><h2 id="Specifications_(R-4360-51VDT)"><span id="Specifications_.28R-4360-51VDT.29"></span>Specifications (R-4360-51VDT)</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Pratt_%26_Whitney_R-4360_Wasp_Major&action=edit&section=5" title="Edit section: Specifications (R-4360-51VDT)"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Biggest_rotary_cutaway.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d9/Biggest_rotary_cutaway.jpg/220px-Biggest_rotary_cutaway.jpg" decoding="async" width="220" height="165" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d9/Biggest_rotary_cutaway.jpg/330px-Biggest_rotary_cutaway.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d9/Biggest_rotary_cutaway.jpg/440px-Biggest_rotary_cutaway.jpg 2x" data-file-width="3072" data-file-height="2304" /></a><figcaption>Pratt & Whitney R-4360 Wasp Major (sectioned)</figcaption></figure> <p style="font-size: 90%; margin:0; padding: .2em"><i>Data from</i> White, 1995<sup id="cite_ref-FOOTNOTEWhite1995222_21-0" class="reference"><a href="#cite_note-FOOTNOTEWhite1995222-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup></p> <div class="mw-heading mw-heading3"><h3 id="General_characteristics">General characteristics</h3></div> <ul><li><b>Type:</b> 28-cylinder supercharged air-cooled four-row <a href="/wiki/Radial_engine" title="Radial engine">radial engine</a></li> <li><b><a href="/wiki/Bore_(engine)" title="Bore (engine)">Bore</a>:</b> 5.75 in (146 mm)</li> <li><b><a href="/wiki/Stroke_(engine)" title="Stroke (engine)">Stroke</a>:</b> 6.00 in (152 mm).</li> <li><b><a href="/wiki/Engine_displacement" title="Engine displacement">Displacement</a>:</b> 4,362.5 cu in (71.489 L)</li> <li><b>Length:</b> 103 in (2,600 mm)</li> <li><b>Diameter:</b> 61 in (1,500 mm)</li> <li><b><a href="/wiki/Dry_weight" class="mw-redirect" title="Dry weight">Dry weight</a>:</b> 3,720 lb (1,690 kg)</li></ul> <div class="mw-heading mw-heading3"><h3 id="Components">Components</h3></div> <ul><li><b><a href="/wiki/Valvetrain" title="Valvetrain">Valvetrain</a>:</b> <a href="/wiki/Poppet_valve" title="Poppet valve">Poppet</a>, two valves per cylinder</li> <li><b><a href="/wiki/Supercharger" title="Supercharger">Supercharger</a>:</b> Gear-driven single stage variable speed <a href="/wiki/Centrifugal_type_supercharger" class="mw-redirect" title="Centrifugal type supercharger">centrifugal type supercharger</a></li> <li><b><a href="/wiki/Turbocharger" title="Turbocharger">Turbocharger</a>:</b> General Electric CHM-2 (optional)</li> <li><b>Fuel system:</b> <a href="/wiki/Bendix_Corporation" title="Bendix Corporation">Bendix-Stromberg</a> PR-100E2 <a href="/wiki/Pressure_carburetor" title="Pressure carburetor">pressure carburetor</a></li> <li><b>Fuel type:</b> 115/145 <a href="/wiki/Avgas" title="Avgas">Aviation gasoline</a></li> <li><b>Oil system:</b> <a href="/wiki/Dry_sump" title="Dry sump">Dry sump</a></li> <li><b>Cooling system:</b> <a href="/wiki/Air-cooled_engine" title="Air-cooled engine">Air-cooled</a></li></ul> <div class="mw-heading mw-heading3"><h3 id="Performance">Performance</h3></div> <ul><li><b>Power output:</b> 4,300 hp (3,200 kW) at 2800 rpm</li> <li><b><a href="/wiki/Power_density" title="Power density">Specific power</a>:</b> 0.99 hp/cu in (45 kW/L)</li> <li><b><a href="/wiki/Compression_ratio" title="Compression ratio">Compression ratio</a>:</b> 7:1</li> <li><b><a href="/wiki/Power-to-weight_ratio" title="Power-to-weight ratio">Power-to-weight ratio</a>:</b> 1.11 hp/lb (1.82 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=Pratt_%26_Whitney_R-4360_Wasp_Major&action=edit&section=6" 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/Pratt_%26_Whitney_Wasp_series" title="Pratt & Whitney Wasp series">Pratt & Whitney Wasp series</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-1830_Twin_Wasp" title="Pratt & Whitney R-1830 Twin Wasp">Pratt & Whitney R-1830 Twin Wasp</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-1535" class="mw-redirect" title="Pratt & Whitney R-1535">R-1535 Twin Wasp Junior</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-2180-A_Twin_Hornet" title="Pratt & Whitney R-2180-A Twin Hornet">Pratt & Whitney R-2180-A Twin Hornet</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-2180-E_Twin_Wasp_E" title="Pratt & Whitney R-2180-E Twin Wasp E">Pratt & Whitney R-2180-E Twin Wasp E</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-2800_Double_Wasp" title="Pratt & Whitney R-2800 Double Wasp">Pratt & Whitney R-2800 Double Wasp</a></li></ul> <p> <b>Comparable engines</b> </p> <ul><li><a href="/wiki/BMW_803" title="BMW 803">BMW 803</a></li> <li><a href="/wiki/Bristol_Centaurus" title="Bristol Centaurus">Bristol Centaurus</a></li> <li><a href="/wiki/Shvetsov_ASh-2" title="Shvetsov ASh-2">Shvetsov ASh-2</a></li> <li><a href="/wiki/Wright_R-3350" class="mw-redirect" title="Wright R-3350">Wright R-3350</a></li></ul> <p><b>Related lists</b> </p> <ul><li><a href="/wiki/List_of_aircraft_engines" title="List of aircraft engines">List of aircraft engines</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Pratt_%26_Whitney_R-4360_Wasp_Major&action=edit&section=7" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Notes">Notes</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Pratt_%26_Whitney_R-4360_Wasp_Major&action=edit&section=8" title="Edit section: Notes"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap mw-references-columns"><ol class="references"> <li id="cite_note-FOOTNOTEWhite1995212-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEWhite1995212_1-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFWhite1995">White 1995</a>, p. 212.</span> </li> <li id="cite_note-FOOTNOTEGunston2006132-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEGunston2006132_2-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFGunston2006">Gunston 2006</a>, p. 132.</span> </li> <li id="cite_note-gann-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-gann_3-0">^</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 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St Helena, CA: Lee Enterprises, Inc<span class="reference-accessdate">. Retrieved <span class="nowrap">September 17,</span> 2020</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Napa+Valley+Register&rft.atitle=A+piece+of+military+aircraft+history+sits+in+St.+Helena%2C+just+waiting+to+put+on+a+show&rft.date=2020-09-16&rft.aulast=Stoneberg&rft.aufirst=David&rft_id=https%3A%2F%2Fnapavalleyregister.com%2Fnews%2Flocal%2Fa-piece-of-military-aircraft-history-sits-in-st-helena-just-waiting-to-put-on%2Farticle_fc6b6484-d89f-540c-beea-32c7d113166b.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3APratt+%26+Whitney+R-4360+Wasp+Major" class="Z3988"></span></span> </li> <li id="cite_note-FOOTNOTEWhite1995222-21"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEWhite1995222_21-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFWhite1995">White 1995</a>, p. 222.</span> </li> </ol></div></div> <div class="mw-heading mw-heading3"><h3 id="Bibliography">Bibliography</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Pratt_%26_Whitney_R-4360_Wasp_Major&action=edit&section=9" title="Edit section: Bibliography"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>Bridgman, Leonard, ed. <i>Jane's All The World's Aircraft 1951–1952</i>. London: Samson Low, Marston & Company, Ltd 1951.</li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFGunston2006" class="citation book cs1">Gunston, Bill (2006). <i>World Encyclopedia of Aero Engines: From the Pioneers to the Present Day</i> (5 ed.). Stroud, UK: Sutton. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-7509-4479-X" title="Special:BookSources/0-7509-4479-X"><bdi>0-7509-4479-X</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=World+Encyclopedia+of+Aero+Engines%3A+From+the+Pioneers+to+the+Present+Day&rft.place=Stroud%2C+UK&rft.edition=5&rft.pub=Sutton&rft.date=2006&rft.isbn=0-7509-4479-X&rft.aulast=Gunston&rft.aufirst=Bill&rfr_id=info%3Asid%2Fen.wikipedia.org%3APratt+%26+Whitney+R-4360+Wasp+Major" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFWhite1995" class="citation book cs1">White, Graham (1995). <i>Allied Aircraft Piston Engines of World War II: History and Development of Frontline Aircraft Piston Engines Produced by Great Britain and the United States During World War II</i>. Warrendale, Pennsylvania: SAE International. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/1-56091-655-9" title="Special:BookSources/1-56091-655-9"><bdi>1-56091-655-9</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Allied+Aircraft+Piston+Engines+of+World+War+II%3A+History+and+Development+of+Frontline+Aircraft+Piston+Engines+Produced+by+Great+Britain+and+the+United+States+During+World+War+II&rft.place=Warrendale%2C+Pennsylvania&rft.pub=SAE+International&rft.date=1995&rft.isbn=1-56091-655-9&rft.aulast=White&rft.aufirst=Graham&rfr_id=info%3Asid%2Fen.wikipedia.org%3APratt+%26+Whitney+R-4360+Wasp+Major" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFWhite2006" class="citation book cs1">White, Graham (2006). <i>R-4360: Pratt & Whitney's Major Miracle</i>. North Branch, Minn.: Specialty Press. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/1-58007-097-3" title="Special:BookSources/1-58007-097-3"><bdi>1-58007-097-3</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=R-4360%3A+Pratt+%26+Whitney%27s+Major+Miracle&rft.place=North+Branch%2C+Minn.&rft.pub=Specialty+Press&rft.date=2006&rft.isbn=1-58007-097-3&rft.aulast=White&rft.aufirst=Graham&rfr_id=info%3Asid%2Fen.wikipedia.org%3APratt+%26+Whitney+R-4360+Wasp+Major" class="Z3988"></span></li></ul> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Pratt_%26_Whitney_R-4360_Wasp_Major&action=edit&section=10" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1235681985">.mw-parser-output .side-box{margin:4px 0;box-sizing:border-box;border:1px solid #aaa;font-size:88%;line-height:1.25em;background-color:var(--background-color-interactive-subtle,#f8f9fa);display:flow-root}.mw-parser-output .side-box-abovebelow,.mw-parser-output .side-box-text{padding:0.25em 0.9em}.mw-parser-output .side-box-image{padding:2px 0 2px 0.9em;text-align:center}.mw-parser-output .side-box-imageright{padding:2px 0.9em 2px 0;text-align:center}@media(min-width:500px){.mw-parser-output .side-box-flex{display:flex;align-items:center}.mw-parser-output .side-box-text{flex:1;min-width:0}}@media(min-width:720px){.mw-parser-output .side-box{width:238px}.mw-parser-output .side-box-right{clear:right;float:right;margin-left:1em}.mw-parser-output .side-box-left{margin-right:1em}}</style><style data-mw-deduplicate="TemplateStyles:r1237033735">@media print{body.ns-0 .mw-parser-output .sistersitebox{display:none!important}}@media screen{html.skin-theme-clientpref-night .mw-parser-output .sistersitebox img[src*="Wiktionary-logo-en-v2.svg"]{background-color:white}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .sistersitebox img[src*="Wiktionary-logo-en-v2.svg"]{background-color:white}}</style><div class="side-box side-box-right plainlinks sistersitebox"><style data-mw-deduplicate="TemplateStyles:r1126788409">.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}</style> <div class="side-box-flex"> <div class="side-box-image"><span class="noviewer" typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png" decoding="async" width="30" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/45px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/59px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></span></span></div> <div class="side-box-text plainlist">Wikimedia Commons has media related to <span style="font-weight: bold; font-style: italic;"><a href="https://commons.wikimedia.org/wiki/Category:Pratt_%26_Whitney_R-4360" class="extiw" title="commons:Category:Pratt & Whitney R-4360">Pratt & Whitney R-4360</a></span>.</div></div> </div> <ul><li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20181023090200/http://www.pw.utc.com/R4360_Wasp_Major_Engine">Pratt & Whitney R-4360 page</a></li> <li><a rel="nofollow" class="external text" href="https://prattwhitney.com/">Pratt Whitney</a></li> <li><a rel="nofollow" class="external text" href="http://www.nationalmuseum.af.mil/Visit/Museum-Exhibits/Fact-Sheets/Display/Article/195794/pratt-whitney-r-4360-wasp-major/">National Museum of the USAF – R-4360 fact sheet</a></li> <li><a rel="nofollow" class="external text" href="http://www.flightglobal.com/pdfarchive/view/1947/1947%20-%201081.html">"3,500 h.p. 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& Whitney">Pratt & Whitney</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/Radial_engine" title="Radial engine">Radial 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/Pratt_%26_Whitney_R-985_Wasp_Junior" title="Pratt & Whitney R-985 Wasp Junior">R-985</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-1340_Wasp" title="Pratt & Whitney R-1340 Wasp">R-1340</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-1535_Twin_Wasp_Junior" title="Pratt & Whitney R-1535 Twin Wasp Junior">R-1535</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-1690_Hornet" title="Pratt & Whitney R-1690 Hornet">R-1690</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-1830_Twin_Wasp" title="Pratt & Whitney R-1830 Twin Wasp">R-1830</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-1860_Hornet_B" title="Pratt & Whitney R-1860 Hornet B">R-1860</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-2000_Twin_Wasp" title="Pratt & Whitney R-2000 Twin Wasp">R-2000</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-2060_Yellow_Jacket" title="Pratt & Whitney R-2060 Yellow Jacket">R-2060</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-2180-A_Twin_Hornet" title="Pratt & Whitney R-2180-A Twin Hornet">R-2180-A</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-2180-E_Twin_Wasp_E" title="Pratt & Whitney R-2180-E Twin Wasp E">R-2180-E</a></li> <li><a href="/w/index.php?title=Pratt_%26_Whitney_R-2270&action=edit&redlink=1" class="new" title="Pratt & Whitney R-2270 (page does not exist)">R-2270</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-2800_Double_Wasp" title="Pratt & Whitney R-2800 Double Wasp">R-2800</a></li> <li><a class="mw-selflink selflink">R-4360</a></li></ul> <ul><li><a href="/wiki/Pratt_%26_Whitney_R-2800_Double_Wasp" title="Pratt & Whitney R-2800 Double Wasp">Double Wasp</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-1690_Hornet" title="Pratt & Whitney R-1690 Hornet">Hornet (A)</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-1860_Hornet_B" title="Pratt & Whitney R-1860 Hornet B">Hornet B</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-2180-A_Twin_Hornet" title="Pratt & Whitney R-2180-A Twin Hornet">Twin Hornet</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-1830_Twin_Wasp" title="Pratt & Whitney R-1830 Twin Wasp">Twin Wasp (R-1830)</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-2000_Twin_Wasp" title="Pratt & Whitney R-2000 Twin Wasp">Twin Wasp (R-2000)</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-2180-E_Twin_Wasp_E" title="Pratt & Whitney R-2180-E Twin Wasp E">Twin Wasp E</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-1535_Twin_Wasp_Junior" title="Pratt & Whitney R-1535 Twin Wasp Junior">Twin Wasp Junior</a></li> <li><a href="/wiki/Pratt_%26_Whitney_Wasp_series" title="Pratt & Whitney Wasp series">Wasp series</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-1340_Wasp" title="Pratt & Whitney R-1340 Wasp">Wasp</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-985_Wasp_Junior" title="Pratt & Whitney R-985 Wasp Junior">Wasp Junior</a></li> <li><a class="mw-selflink selflink">Wasp Major</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-2060_Yellow_Jacket" title="Pratt & Whitney R-2060 Yellow Jacket">Yellow Jacket</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/H_engine" title="H engine">H piston 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/Pratt_%26_Whitney_X-1800" title="Pratt & Whitney X-1800">X-1800/XH-2600</a></li> <li><a href="/wiki/Pratt_%26_Whitney_XH-3130" title="Pratt & Whitney XH-3130">XH-3130 (XH-3730)</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Free-piston_gas_turbine" class="mw-redirect" title="Free-piston gas turbine">Free-piston gas turbines</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_PT1" title="Pratt & Whitney PT1">PT1</a></li></ul> </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/Pratt_%26_Whitney_J57" title="Pratt & Whitney J57">JT3C</a></li> <li><a href="/wiki/Pratt_%26_Whitney_J75" title="Pratt & Whitney J75">JT4A</a></li> <li><a href="/wiki/Pratt_%26_Whitney_J42" class="mw-redirect" title="Pratt & Whitney J42">JT6</a></li> <li><a href="/wiki/Pratt_%26_Whitney_J48" title="Pratt & Whitney J48">JT7</a></li> <li><a href="/wiki/Pratt_%26_Whitney_J52" title="Pratt & Whitney J52">JT8A</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)">JT9</a></li> <li><a href="/wiki/Pratt_%26_Whitney_J58" title="Pratt & Whitney J58">JT11</a></li> <li><a href="/wiki/Pratt_%26_Whitney_JT12" title="Pratt & Whitney JT12">JT12</a></li></ul> <ul><li><a href="/wiki/Pratt_%26_Whitney_J42" class="mw-redirect" title="Pratt & Whitney J42">J42</a></li> <li><a href="/wiki/Pratt_%26_Whitney_J48" title="Pratt & Whitney J48">J48</a></li> <li><a href="/wiki/Pratt_%26_Whitney_J52" title="Pratt & Whitney J52">J52</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="/wiki/Pratt_%26_Whitney_JT12" title="Pratt & Whitney JT12">J60</a></li> <li><a href="/wiki/Pratt_%26_Whitney_J75" title="Pratt & Whitney J75">J75</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></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/Engine_Alliance_GP7000" title="Engine Alliance GP7000">GP7000</a>†</li> <li><a href="/wiki/Pratt_%26_Whitney_JT3D" title="Pratt & Whitney JT3D">JT3D</a></li> <li><a href="/wiki/Pratt_%26_Whitney_J75#Design_and_development" title="Pratt & Whitney J75">JT4D</a></li> <li><a href="/wiki/Pratt_%26_Whitney_JT8D" title="Pratt & Whitney JT8D">JT8D</a></li> <li><a href="/wiki/Pratt_%26_Whitney_JT9D" title="Pratt & Whitney JT9D">JT9D</a></li> <li><a href="/w/index.php?title=Pratt_%26_Whitney_JTF10&action=edit&redlink=1" class="new" title="Pratt & Whitney JTF10 (page does not exist)">JTF10</a></li> <li><a href="/wiki/Pratt_%26_Whitney_TF30" title="Pratt & Whitney TF30">JTF10A</a></li> <li><a href="/wiki/Pratt_%26_Whitney_PW2000" title="Pratt & Whitney PW2000">JT10D</a></li> <li><a href="/w/index.php?title=Pratt_%26_Whitney_JTF14&action=edit&redlink=1" class="new" title="Pratt & Whitney JTF14 (page does not exist)">JTF14</a></li> <li><a href="/w/index.php?title=Pratt_%26_Whitney_JTF16&action=edit&redlink=1" class="new" title="Pratt & Whitney JTF16 (page does not exist)">JTF16</a></li> <li><a href="/w/index.php?title=Pratt_%26_Whitney_JTF17&action=edit&redlink=1" class="new" title="Pratt & Whitney JTF17 (page does not exist)">JTF17</a></li> <li><a href="/wiki/Pratt_%26_Whitney_F100" title="Pratt & Whitney F100">JTF22</a></li> <li><a href="/wiki/Pratt_%26_Whitney_PW1000G" title="Pratt & Whitney PW1000G">PW1000G</a></li> <li><a href="/wiki/Pratt_%26_Whitney_PW1120" title="Pratt & Whitney PW1120">PW1120</a></li> <li><a href="/wiki/Pratt_%26_Whitney_PW2000" title="Pratt & Whitney PW2000">PW2000</a></li> <li><a href="/wiki/Pratt_%26_Whitney_PW4000" title="Pratt & Whitney PW4000">PW4000</a></li> <li><a href="/wiki/Pratt_%26_Whitney_F119" title="Pratt & Whitney F119">PW5000</a></li> <li><a href="/wiki/Pratt_%26_Whitney_PW6000" title="Pratt & Whitney PW6000">PW6000</a></li> <li><a href="/wiki/MTU/Pratt_%26_Whitney_RTF-180" title="MTU/Pratt & Whitney RTF-180">RTF-180</a>†</li> <li><a href="/w/index.php?title=Pratt_%26_Whitney_STF200&action=edit&redlink=1" class="new" title="Pratt & Whitney STF200 (page does not exist)">STF200</a></li> <li><a href="/wiki/IAE_SuperFan" title="IAE SuperFan">SuperFan</a>†</li> <li><a href="/wiki/IAE_V2500" title="IAE V2500">V2500</a>†</li></ul> <ul><li><a href="/wiki/Pratt_%26_Whitney_F100" title="Pratt & Whitney F100">F100</a></li> <li><a href="/wiki/Pratt_%26_Whitney_JT9D" title="Pratt & Whitney JT9D">F105</a></li> <li><a href="/wiki/Pratt_%26_Whitney_PW2000" title="Pratt & Whitney PW2000">F117</a></li> <li><a href="/wiki/Pratt_%26_Whitney_F119" title="Pratt & Whitney F119">F119</a></li> <li><a href="/wiki/Pratt_%26_Whitney_F135" title="Pratt & Whitney F135">F135</a></li> <li><a href="/wiki/Pratt_%26_Whitney_F401" title="Pratt & Whitney F401">F401</a></li> <li><a href="/wiki/Volvo_RM8" title="Volvo RM8">RM8</a>†</li> <li><a href="/wiki/Pratt_%26_Whitney_TF30" title="Pratt & Whitney TF30">TF30</a></li> <li><a href="/wiki/Pratt_%26_Whitney_JT3D" title="Pratt & Whitney JT3D">TF33</a></li> <li><a href="/wiki/Pratt_%26_Whitney_XA101" title="Pratt & Whitney XA101">XA101</a></li> <li><a href="/wiki/Pratt_%26_Whitney_XA103" title="Pratt & Whitney XA103">XA103</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/Avco/Pratt_%26_Whitney_T800" title="Avco/Pratt & Whitney T800">APW34</a>†</li> <li><a href="/wiki/Pratt_%26_Whitney_T73" title="Pratt & Whitney T73">JFTD12</a></li> <li><a href="/wiki/Pratt_%26_Whitney_T34" title="Pratt & Whitney T34">PT2</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)">PT3</a></li> <li><a href="/w/index.php?title=Pratt_%26_Whitney_XT45&action=edit&redlink=1" class="new" title="Pratt & Whitney XT45 (page does not exist)">PT4</a></li> <li><a href="/wiki/Pratt_%26_Whitney_XT57" title="Pratt & Whitney XT57">PT5</a></li></ul> <ul><li><a href="/wiki/Pratt_%26_Whitney_T34" title="Pratt & Whitney T34">T34</a></li> <li><a href="/w/index.php?title=Pratt_%26_Whitney_XT45&action=edit&redlink=1" class="new" title="Pratt & Whitney XT45 (page does not exist)">XT45</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/Pratt_%26_Whitney_XT57" title="Pratt & Whitney XT57">XT57</a></li> <li><a href="/wiki/Pratt_%26_Whitney_T73" title="Pratt & Whitney T73">T73</a></li> <li><a href="/wiki/Avco/Pratt_%26_Whitney_T800" title="Avco/Pratt & Whitney T800">T800-APW</a>†</li> <li><a href="/wiki/ATEC_T900" title="ATEC T900">T900</a>†</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Propfan" title="Propfan">Propfans</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><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Rocket_engines" class="mw-redirect" title="Rocket engines">Rocket 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/RL10" title="RL10">RL10</a></li> <li><a href="/wiki/Pratt_%26_Whitney_XLR-129" title="Pratt & Whitney XLR-129">XLR-129</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Aeroderivative_gas_turbine_engine" class="mw-redirect" title="Aeroderivative gas turbine engine">Aeroderivative gas <br /> turbine 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="/w/index.php?title=Pratt_%26_Whitney_GG3&action=edit&redlink=1" class="new" title="Pratt & Whitney GG3 (page does not exist)">GG3/FT3</a></li> <li><a href="/wiki/Pratt_%26_Whitney_GG4" title="Pratt & Whitney GG4">GG4/FT4</a></li> <li><a href="/w/index.php?title=Pratt_%26_Whitney_FT8&action=edit&redlink=1" class="new" title="Pratt & Whitney FT8 (page does not exist)">FT8</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Subsidiaries</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/Pratt_%26_Whitney_Canada" title="Pratt & Whitney Canada">Pratt & Whitney Canada</a></li> <li><a href="/wiki/Pratt_%26_Whitney_Rocketdyne" title="Pratt & Whitney Rocketdyne">Pratt & Whitney Rocketdyne</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Key people</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/Leonard_S._Hobbs" title="Leonard S. Hobbs">Leonard S. Hobbs</a></li> <li><a href="/wiki/George_J._Mead" title="George J. Mead">George J. Mead</a></li> <li><a href="/w/index.php?title=Wright_Parkins&action=edit&redlink=1" class="new" title="Wright Parkins (page does not exist)">Wright Parkins</a></li> <li><a href="/w/index.php?title=Perry_Pratt&action=edit&redlink=1" class="new" title="Perry Pratt (page does not exist)">Perry Pratt</a></li> <li><a href="/wiki/Frederick_Rentschler" title="Frederick Rentschler">Frederick Rentschler</a></li> <li><a href="/wiki/Richard_S%C3%B6derberg" title="Richard Söderberg">Richard "Dick" Soderberg</a></li> <li><a href="/w/index.php?title=Andrew_Willgoos&action=edit&redlink=1" class="new" title="Andrew Willgoos (page does not exist)">Andrew Willgoos</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div>† <a href="/wiki/Template:Joint_development_aeroengines" title="Template:Joint development aeroengines">Joint development aeroengines</a> <br /> <b>See also:</b> <a href="/wiki/Template:Pratt_%26_Whitney_Canada_aeroengines" title="Template:Pratt & Whitney Canada aeroengines">Pratt & Whitney Canada 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_piston_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_piston_aeroengines" title="Template:US military piston aeroengines"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:US_military_piston_aeroengines" title="Template talk:US military piston aeroengines"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:US_military_piston_aeroengines" title="Special:EditPage/Template:US military piston aeroengines"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="United_States_military_piston_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> piston 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/H_engine" title="H engine">H (four-bank <br /> H-configuration inline)</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/Curtiss_H-1640" class="mw-redirect" title="Curtiss H-1640">H-1640</a></li> <li><a href="/wiki/Pratt_%26_Whitney_X-1800" title="Pratt & Whitney X-1800">XH-2240</a></li> <li><a href="/wiki/Lycoming_XH-2470" title="Lycoming XH-2470">XH-2470</a></li> <li><a href="/wiki/Pratt_%26_Whitney_X-1800" title="Pratt & Whitney X-1800">XH-2600</a></li> <li><a href="/wiki/Pratt_%26_Whitney_XH-3130" title="Pratt & Whitney XH-3130">XH-3130</a></li> <li><a href="/wiki/Pratt_%26_Whitney_XH-3130" title="Pratt & Whitney XH-3130">XH-3730</a></li> <li><a href="/w/index.php?title=Menasco_H-4070&action=edit&redlink=1" class="new" title="Menasco H-4070 (page does not exist)">H-4070</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/V_engine" title="V engine">IV (inverted-V inline)</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/Continental_XI-1430" title="Continental XI-1430">IV-1430</a></li> <li><a href="/w/index.php?title=Menasco_XIV-2040&action=edit&redlink=1" class="new" title="Menasco XIV-2040 (page does not exist)">IV-2040</a></li> <li><a href="/wiki/Chrysler_IV-2220" title="Chrysler IV-2220">IV-2220</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Straight_engine" title="Straight engine">L (single-bank inline)</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=Martin_L-330&action=edit&redlink=1" class="new" title="Martin L-330 (page does not exist)">L-330</a></li> <li><a href="/wiki/Menasco_Pirate" title="Menasco Pirate">L-365</a></li> <li><a href="/wiki/De_Havilland_Gipsy_Major" title="De Havilland Gipsy Major">L-375</a></li> <li><a href="/w/index.php?title=Ranger_6-390B&action=edit&redlink=1" class="new" title="Ranger 6-390B (page does not exist)">L-390</a></li> <li><a href="/w/index.php?title=Ranger_6-410B-2&action=edit&redlink=1" class="new" title="Ranger 6-410B-2 (page does not exist)">L-410</a></li> <li><a href="/wiki/Ranger_L-440" title="Ranger L-440">L-440</a></li> <li><a href="/w/index.php?title=Miller_44-255&action=edit&redlink=1" class="new" title="Miller 44-255 (page does not exist)">L-510</a></li> <li><a href="/wiki/Liberty_L-8" title="Liberty L-8">L-825</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Flat_engine" title="Flat engine">O (opposed)</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="/w/index.php?title=Righter_O-15&action=edit&redlink=1" class="new" title="Righter O-15 (page does not exist)">O-15</a></li> <li><a href="/w/index.php?title=Muncie_Gear_O-40&action=edit&redlink=1" class="new" title="Muncie Gear O-40 (page does not exist)">O-40</a></li> <li><a href="/wiki/Righter_O-45" title="Righter O-45">O-45</a></li> <li><a href="/w/index.php?title=McCulloch_O-90&action=edit&redlink=1" class="new" title="McCulloch O-90 (page does not exist)">O-90</a></li> <li><a href="/w/index.php?title=McCulloch_O-100&action=edit&redlink=1" class="new" title="McCulloch O-100 (page does not exist)">O-100</a></li> <li><a href="/wiki/Lycoming_O-145" title="Lycoming O-145">O-145</a></li> <li><a href="/wiki/Franklin_O-150" title="Franklin O-150">O-150</a></li> <li><a href="/wiki/Continental_O-170" title="Continental O-170">O-170</a></li> <li><a href="/wiki/Franklin_O-175" title="Franklin O-175">O-175</a></li> <li><a href="/wiki/Franklin_O-175" title="Franklin O-175">O-180</a></li> <li><a href="/wiki/Continental_O-190" title="Continental O-190">O-190</a></li> <li><a href="/wiki/Continental_O-200" title="Continental O-200">O-200 (C)</a></li> <li><a href="/wiki/Franklin_O-200" title="Franklin O-200">O-200 (F)</a></li> <li><a href="/wiki/Continental_O-200" title="Continental O-200">O-205</a></li> <li><a href="/wiki/Lycoming_O-235" title="Lycoming O-235">O-235</a></li> <li><a href="/wiki/Lycoming_O-290" title="Lycoming O-290">O-290</a></li> <li><a href="/wiki/Franklin_O-300" title="Franklin O-300">O-300</a></li> <li><a href="/wiki/Franklin_O-335" title="Franklin O-335">O-335</a></li> <li><a href="/wiki/Continental_IO-360" title="Continental IO-360">O-360 (C)</a></li> <li><a href="/wiki/Lycoming_O-360" title="Lycoming O-360">O-360 (L)</a></li> <li><a href="/wiki/Franklin_O-405" title="Franklin O-405">O-405</a></li> <li><a href="/wiki/Franklin_O-425" title="Franklin O-425">O-425</a></li> <li><a href="/wiki/Lycoming_O-435" title="Lycoming O-435">O-435</a></li> <li><a href="/wiki/Continental_O-470" title="Continental O-470">O-470</a></li> <li><a href="/wiki/Lycoming_O-480" title="Lycoming O-480">O-480</a></li> <li><a href="/wiki/Continental_O-520" class="mw-redirect" title="Continental O-520">O-520</a></li> <li><a href="/wiki/Franklin_O-540" title="Franklin O-540">O-540 (F)</a></li> <li><a href="/wiki/Lycoming_O-540" title="Lycoming O-540">O-540 (L)</a></li> <li><a href="/wiki/Continental_IO-550" title="Continental IO-550">O-550</a></li> <li><a href="/wiki/Lycoming_GSO-580" title="Lycoming GSO-580">O-580</a></li> <li><a href="/wiki/Franklin_O-805" title="Franklin O-805">O-805</a></li> <li><a href="/wiki/Lycoming_O-1230" title="Lycoming O-1230">O-1230</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Radial_engine" title="Radial engine">R (radial)</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=General_Motors_Research_X-250&action=edit&redlink=1" class="new" title="General Motors Research X-250 (page does not exist)">R-250</a></li> <li><a href="/w/index.php?title=LeBlond_5G&action=edit&redlink=1" class="new" title="LeBlond 5G (page does not exist)">R-265</a></li> <li><a href="/w/index.php?title=Lambert_R-270&action=edit&redlink=1" class="new" title="Lambert R-270 (page does not exist)">R-270</a></li> <li><a href="/w/index.php?title=LeBlond_7G&action=edit&redlink=1" class="new" title="LeBlond 7G (page does not exist)">R-370 (LB)</a></li> <li><a href="/wiki/Kinner_K-5" title="Kinner K-5">R-370 (K)</a></li> <li><a href="/wiki/Warner_Scarab" title="Warner Scarab">R-420</a></li> <li><a href="/wiki/Kinner_B-5" title="Kinner B-5">R-440</a></li> <li><a href="/wiki/Warner_Scarab" title="Warner Scarab">R-500</a></li> <li><a href="/wiki/Wright_R-540_Whirlwind" title="Wright R-540 Whirlwind">R-540 (W)</a></li> <li><a href="/wiki/Kinner_R-5" title="Kinner R-5">R-540 (K)</a></li> <li><a href="/w/index.php?title=Continental_A70&action=edit&redlink=1" class="new" title="Continental A70 (page does not exist)">R-545</a></li> <li><a href="/wiki/Warner_Scarab" title="Warner Scarab">R-550</a></li> <li><a href="/wiki/Curtiss_R-600_Challenger" title="Curtiss R-600 Challenger">R-600</a></li> <li><a href="/wiki/Continental_R-670" title="Continental R-670">R-670</a></li> <li><a href="/wiki/Lycoming_R-680" title="Lycoming R-680">R-680</a></li> <li><a href="/wiki/Kinner_C-5" title="Kinner C-5">R-720</a></li> <li><a href="/wiki/Jacobs_R-755" title="Jacobs R-755">R-755</a></li> <li><a href="/wiki/Wright_R-760_Whirlwind" title="Wright R-760 Whirlwind">R-760</a></li> <li><a href="/wiki/Wright_R-790_Whirlwind" title="Wright R-790 Whirlwind">R-790</a></li> <li><a href="/wiki/Jacobs_R-830" title="Jacobs R-830">R-830</a></li> <li><a href="/wiki/Jacobs_R-915" title="Jacobs R-915">R-915</a></li> <li><a href="/wiki/Wright_R-975_Whirlwind" title="Wright R-975 Whirlwind">R-975</a></li> <li><a href="/w/index.php?title=Packard_Diesel&action=edit&redlink=1" class="new" title="Packard Diesel (page does not exist)">DR-980</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-985_Wasp_Junior" title="Pratt & Whitney R-985 Wasp Junior">R-985</a></li> <li><a href="/w/index.php?title=Kinner_C-7&action=edit&redlink=1" class="new" title="Kinner C-7 (page does not exist)">R-1044</a></li> <li><a href="/wiki/Wright_R-1300_Cyclone_7" title="Wright R-1300 Cyclone 7">R-1300</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-1340_Wasp" title="Pratt & Whitney R-1340 Wasp">R-1340</a></li> <li><a href="/wiki/Curtiss_R-1454" class="mw-redirect" title="Curtiss R-1454">R-1454</a></li> <li><a href="/wiki/Wright_Whirlwind_series" title="Wright Whirlwind series">R-1510</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-1535_Twin_Wasp_Junior" title="Pratt & Whitney R-1535 Twin Wasp Junior">R-1535</a></li> <li><a href="/wiki/Curtiss_H-1640" class="mw-redirect" title="Curtiss H-1640">R-1640</a></li> <li><a href="/wiki/Wright_Whirlwind_series" title="Wright Whirlwind series">R-1670</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-1690_Hornet" title="Pratt & Whitney R-1690 Hornet">R-1690</a></li> <li><a href="/wiki/Wright_Cyclone_series" title="Wright Cyclone series">R-1750</a></li> <li><a href="/wiki/Wright_R-1820_Cyclone" title="Wright R-1820 Cyclone">R-1820</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-1830_Twin_Wasp" title="Pratt & Whitney R-1830 Twin Wasp">R-1830</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-1860_Hornet_B" title="Pratt & Whitney R-1860 Hornet B">R-1860</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-2000_Twin_Wasp" title="Pratt & Whitney R-2000 Twin Wasp">R-2000</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-2060_Yellow_Jacket" title="Pratt & Whitney R-2060 Yellow Jacket">R-2060</a></li> <li><a href="/wiki/Wright_R-2160_Tornado" title="Wright R-2160 Tornado">R-2160</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-2180" title="Pratt & Whitney R-2180">R-2180</a></li> <li><a href="/wiki/Wright_R-2600_Twin_Cyclone" title="Wright R-2600 Twin Cyclone">R-2600</a></li> <li><a href="/wiki/Pratt_%26_Whitney_R-2800_Double_Wasp" title="Pratt & Whitney R-2800 Double Wasp">R-2800</a></li> <li><a href="/wiki/Wright_R-3350_Duplex-Cyclone" title="Wright R-3350 Duplex-Cyclone">R-3350</a></li> <li><a href="/wiki/Wright_R-4090_Cyclone_22" title="Wright R-4090 Cyclone 22">R-4090</a></li> <li><a class="mw-selflink selflink">R-4360</a></li> <li><a href="/wiki/Lycoming_XR-7755" title="Lycoming XR-7755">XR-7755</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/V_engine" title="V engine">V (upright-V inline)</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/Hispano-Suiza_8" title="Hispano-Suiza 8">V-720</a></li> <li><a href="/wiki/Curtiss_D-12" title="Curtiss D-12">V-1150</a></li> <li><a href="/w/index.php?title=Packard_V-1237&action=edit&redlink=1" class="new" title="Packard V-1237 (page does not exist)">V-1237</a></li> <li><a href="/wiki/Curtiss_D-12" title="Curtiss D-12">V-1400</a></li> <li><a href="/w/index.php?title=Continental_V-1440&action=edit&redlink=1" class="new" title="Continental V-1440 (page does not exist)">V-1440</a></li> <li><a href="/w/index.php?title=Wright_V-1460&action=edit&redlink=1" class="new" title="Wright V-1460 (page does not exist)">V-1460</a></li> <li><a href="/w/index.php?title=Curtiss_V-1510&action=edit&redlink=1" class="new" title="Curtiss V-1510 (page does not exist)">V-1510</a></li> <li><a href="/w/index.php?title=Wright_V-1560&action=edit&redlink=1" class="new" title="Wright V-1560 (page does not exist)">V-1560</a></li> <li><a href="/wiki/Curtiss_V-1570" class="mw-redirect" title="Curtiss V-1570">V-1570</a></li> <li><a href="/wiki/Packard_V-1650_Merlin" title="Packard V-1650 Merlin">V-1650 (P)</a></li> <li><a href="/wiki/Allison_V-1710" title="Allison V-1710">V-1710</a></li> <li><a href="/wiki/Wright_T-3_Tornado" title="Wright T-3 Tornado">V-1950</a></li> <li><a href="/wiki/Allison_V-3420" title="Allison V-3420">V-3420</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/V_engine" title="V engine">V (inverted-V inline)</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/Ranger_V-770" title="Ranger V-770">V-770</a></li> <li><a href="/wiki/Liberty_L-12" title="Liberty L-12">V-1650 (L)</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/V_engine" title="V engine">VG (inverted-V inline)</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/Liberty_L-12" title="Liberty L-12">VG-1410</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/W_engine" title="W engine">W (three-bank <br /> W-configuration inline)</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=Engineering_Division_W-2779&action=edit&redlink=1" class="new" title="Engineering Division W-2779 (page does not exist)">W-2779</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow hlist" colspan="2"><div> <ul><li><i>See also:</i> <a href="/wiki/Pratt_%26_Whitney_X-1800" title="Pratt & Whitney X-1800">X-1800</a></li> <li><a href="/wiki/Template:US_military_gas_turbine_aeroengines" title="Template:US military gas turbine aeroengines">US military gas turbine aeroengines</a></li> <li><a href="/wiki/Template:Piston_engine_configurations" title="Template:Piston engine configurations">Piston engine configurations</a></li></ul> </div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?useformat=desktop&type=1x1&usesul3=0" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=Pratt_%26_Whitney_R-4360_Wasp_Major&oldid=1238669565">https://en.wikipedia.org/w/index.php?title=Pratt_%26_Whitney_R-4360_Wasp_Major&oldid=1238669565</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Help:Category" title="Help:Category">Categories</a>: <ul><li><a href="/wiki/Category:1940s_aircraft_piston_engines" title="Category:1940s aircraft piston engines">1940s aircraft piston engines</a></li><li><a href="/wiki/Category:Aircraft_air-cooled_radial_piston_engines" title="Category:Aircraft air-cooled radial piston engines">Aircraft air-cooled radial piston engines</a></li><li><a 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