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<span>Applications</span> </div> </a> <ul id="toc-Applications-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Survivors" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Survivors"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Survivors</span> </div> </a> <ul id="toc-Survivors-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_(W.4A_Viper)" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Specifications_(W.4A_Viper)"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Specifications (W.4A Viper)</span> </div> </a> <button aria-controls="toc-Specifications_(W.4A_Viper)-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Specifications (W.4A Viper) subsection</span> </button> <ul id="toc-Specifications_(W.4A_Viper)-sublist" class="vector-toc-list"> <li id="toc-General_characteristics" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#General_characteristics"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.1</span> <span>General characteristics</span> </div> </a> <ul id="toc-General_characteristics-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Components" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Components"> <div class="vector-toc-text"> <span class="vector-toc-numb">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 class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>References</span> </div> </a> <button 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</div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Wolseley Viper</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Go to an article in another language. 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style="width:25.5em;border-spacing:2px;"> <tbody><tr> <th colspan="2" style="text-align: center; font-size: 125%;">Viper </th></tr> <tr> <td colspan="2" style="text-align: center;"><span typeof="mw:File"><a href="/wiki/File:WolseleyViper.JPG" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/20/WolseleyViper.JPG/300px-WolseleyViper.JPG" decoding="async" width="300" height="305" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/20/WolseleyViper.JPG/450px-WolseleyViper.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/20/WolseleyViper.JPG/600px-WolseleyViper.JPG 2x" data-file-width="2667" data-file-height="2715" /></a></span> </td></tr> <tr> <td colspan="2" style="border-bottom: 1px solid #aaa;text-align:center;">Rear view of preserved Wolseley Viper </td></tr> <tr> <th>Type </th> <td><a href="/wiki/Reciprocating_engine" title="Reciprocating engine">Piston</a> <a href="/wiki/Inline_engine_(aviation)" class="mw-redirect" title="Inline engine (aviation)">inline</a> <a href="/wiki/Aircraft_engine" title="Aircraft engine">aero-engine</a> </td></tr> <tr> <th>Manufacturer </th> <td><a href="/wiki/Wolseley_Motors" title="Wolseley Motors">Wolseley Motors</a> </td></tr> <tr> <th>First run </th> <td>1918 </td></tr> <tr> <th><span class="nowrap">Major applications</span> </th> <td><a href="/wiki/Royal_Aircraft_Factory_S.E.5" title="Royal Aircraft Factory S.E.5">Royal Aircraft Factory S.E.5</a> </td></tr> </tbody></table> <p>The <b>Wolseley Viper</b> is a British-built, high-compression derivative of the <a href="/wiki/Hispano-Suiza_8" title="Hispano-Suiza 8">Hispano Suiza HS-8</a> liquid-cooled <a href="/wiki/V8_engine" title="V8 engine">V-8</a> engine, built under licence by <a href="/wiki/Wolseley_Motors" title="Wolseley Motors">Wolseley Motors</a> during <a href="/wiki/World_War_I" title="World War I">World War I</a>. </p><p>It powered later models of the <a href="/wiki/Royal_Aircraft_Factory_S.E.5" title="Royal Aircraft Factory S.E.5">S.E.5a</a>, <a href="/wiki/SPAD_S.VII" title="SPAD S.VII">SPAD VII</a> and other British or British-built aircraft designed for the Hispano-Suiza. </p> <meta property="mw:PageProp/toc" /> <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=Wolseley_Viper&action=edit&section=1" title="Edit section: Variants"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><b>Wolseley W.4A Python I</b> (1917)</li></ul> <dl><dd>150 hp (110 kW) – licence produced version of the <a href="/wiki/Hispano-Suiza_8" title="Hispano-Suiza 8">Hispano-Suiza 8Aa</a> with minor structural changes and the weight increased to 455 lb (206 kg), retained the original's low compression 1.8 in (45 mm) pistons and compression ratio of 4.7:1. Only 100 built.<sup id="cite_ref-FOOTNOTEGunston198676_1-0" class="reference"><a href="#cite_note-FOOTNOTEGunston198676-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-FOOTNOTELumsden1994156_&_232_2-0" class="reference"><a href="#cite_note-FOOTNOTELumsden1994156_&_232-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></dd></dl> <ul><li><b>Wolseley W.4A Python II</b></li></ul> <dl><dd>180 hp (130 kW) – high compression version of the Python I with high compression 2 in (50 mm) pistons and compression ratio increased to 5.3:1.<sup id="cite_ref-FOOTNOTELumsden1994156_&_232_2-1" class="reference"><a href="#cite_note-FOOTNOTELumsden1994156_&_232-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></dd></dl> <ul><li><b>Wolseley W.4A* Viper</b> (1918)</li></ul> <dl><dd>200 hp (150 kW) – broadly the equivalent of the Hispano-Suiza 8Ab, compression ratio of 5.3:1 (19 early production engines had a higher compression ratio of 5.6:1), with 200 hp English Hispano propeller hubs.<sup id="cite_ref-FOOTNOTELumsden1994232_3-0" class="reference"><a href="#cite_note-FOOTNOTELumsden1994232-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup></dd></dl> <ul><li><b>Wolseley W.4B Adder I</b> (1918)</li></ul> <dl><dd>200 hp (150 kW) – modified version of the Hispano-Suiza 8B.<sup id="cite_ref-FOOTNOTELumsden1994232_3-1" class="reference"><a href="#cite_note-FOOTNOTELumsden1994232-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-FOOTNOTEGunston1986171_4-0" class="reference"><a href="#cite_note-FOOTNOTEGunston1986171-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup></dd></dl> <ul><li><b>Wolseley W.4B* Adder II</b></li></ul> <dl><dd>200 hp (150 kW) – modified and improved version of the Adder I.<sup id="cite_ref-FOOTNOTELumsden1994232_3-2" class="reference"><a href="#cite_note-FOOTNOTELumsden1994232-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup></dd></dl> <ul><li><b>Wolseley W.4B* Adder III</b></li></ul> <dl><dd>200 hp (150 kW) – modified and improved version of the Adder II with balanced crankshaft.<sup id="cite_ref-FOOTNOTELumsden1994232_3-3" class="reference"><a href="#cite_note-FOOTNOTELumsden1994232-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup></dd></dl> <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=Wolseley_Viper&action=edit&section=2" title="Edit section: Applications"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Airco_DH.9" title="Airco DH.9">Airco DH.9</a></li> <li><a href="/wiki/Avro_552" title="Avro 552">Avro 552</a></li> <li><a href="/wiki/Bristol_M.R.1" title="Bristol M.R.1">Bristol M.R.1</a></li> <li><a href="/wiki/Bristol_Tourer" title="Bristol Tourer">Bristol Tourer</a></li> <li><a href="/wiki/Cierva_C.8" title="Cierva C.8">Cierva C.8</a></li> <li><a href="/wiki/Martinsyde_Buzzard" title="Martinsyde Buzzard">Martinsyde F.6</a></li> <li><a href="/wiki/Royal_Aircraft_Factory_S.E.5a" class="mw-redirect" title="Royal Aircraft Factory S.E.5a">Royal Aircraft Factory S.E.5a</a></li> <li><a href="/wiki/Sopwith_Antelope" title="Sopwith Antelope">Sopwith Antelope</a></li> <li><a href="/wiki/Sopwith_Cuckoo" title="Sopwith Cuckoo">Sopwith Cuckoo</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Survivors">Survivors</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Wolseley_Viper&action=edit&section=3" title="Edit section: Survivors"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>A Wolseley Viper powered <a href="/wiki/Royal_Aircraft_Factory_S.E.5a" class="mw-redirect" title="Royal Aircraft Factory S.E.5a">Royal Aircraft Factory S.E.5a</a> is owned by, and on display at <a href="/wiki/The_Shuttleworth_Collection" class="mw-redirect" title="The Shuttleworth Collection">The Shuttleworth Collection</a>, <a href="/wiki/Old_Warden_Aerodrome" title="Old Warden Aerodrome">Old Warden Aerodrome</a> in the UK.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p> <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=Wolseley_Viper&action=edit&section=4" title="Edit section: Engines on display"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>A preserved Wolseley Viper is on public display at the <a href="/wiki/Science_Museum,_London" title="Science Museum, London">Science Museum, London</a>.</li> <li>A preserved Wolseley Viper is on public display at the <a href="/wiki/Museo_Nacional_de_Aeron%C3%A1utica_de_Argentina" title="Museo Nacional de Aeronáutica de Argentina">Museo Nacional de Aeronáutica de Argentina</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Specifications_(W.4A_Viper)"><span id="Specifications_.28W.4A_Viper.29"></span>Specifications (W.4A Viper)</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Wolseley_Viper&action=edit&section=5" title="Edit section: Specifications (W.4A Viper)"><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> <a href="/wiki/Bill_Gunston" title="Bill Gunston">Gunston</a><sup id="cite_ref-FOOTNOTEGunston198676_1-1" class="reference"><a href="#cite_note-FOOTNOTEGunston198676-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> and Lumsden<sup id="cite_ref-FOOTNOTELumsden1994232_3-4" class="reference"><a href="#cite_note-FOOTNOTELumsden1994232-3"><span class="cite-bracket">[</span>3<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> 8-cylinder, upright, 90 degree Vee engine</li> <li><b><a href="/wiki/Bore_(engine)" title="Bore (engine)">Bore</a>:</b> 4.72 in (120 mm)</li> <li><b><a href="/wiki/Stroke_(engine)" title="Stroke (engine)">Stroke</a>:</b> 5.12 in (130 mm)</li> <li><b><a href="/wiki/Engine_displacement" title="Engine displacement">Displacement</a>:</b> 716.8 cu in (11.7 L)</li> <li><b>Length:</b> 46.2 in (1,170 mm)</li> <li><b>Width:</b> 33.5 in (850 mm)</li> <li><b>Height:</b> 35.4 in (900 mm)</li> <li><b><a href="/wiki/Dry_weight" class="mw-redirect" title="Dry weight">Dry weight</a>:</b> 455 lb (206 kg)</li></ul> <div class="mw-heading mw-heading3"><h3 id="Components">Components</h3></div> <ul><li><b>Fuel system:</b> Twin Zenith-Duplex carburettors</li> <li><b>Cooling system:</b> Liquid-cooled</li> <li><b><a href="/wiki/Propeller_speed_reduction_unit" title="Propeller speed reduction unit">Reduction gear</a>:</b> Direct drive, Right-hand tractor</li></ul> <div class="mw-heading mw-heading3"><h3 id="Performance">Performance</h3></div> <ul><li><b>Power output:</b> 200–210 hp (150–160 kW)</li> <li><b><a href="/wiki/Compression_ratio" title="Compression ratio">Compression ratio</a>:</b> 5.3:1</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=Wolseley_Viper&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/Hispano-Suiza_8" title="Hispano-Suiza 8">Hispano-Suiza 8</a></li></ul> <p> <b>Comparable engines</b> </p> <ul><li><a href="/wiki/Peugeot_8Aa" title="Peugeot 8Aa">Peugeot 8Aa</a></li> <li><a href="/wiki/Sunbeam_Arab" title="Sunbeam Arab">Sunbeam Arab</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=Wolseley_Viper&action=edit&section=7" title="Edit section: References"><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:Wolseley_Viper" class="extiw" title="commons:Category:Wolseley Viper">Wolseley Viper</a></span>.</div></div> </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=Wolseley_Viper&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"><ol class="references"> <li id="cite_note-FOOTNOTEGunston198676-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-FOOTNOTEGunston198676_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-FOOTNOTEGunston198676_1-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><a href="#CITEREFGunston1986">Gunston (1986)</a>, p. 76.</span> </li> <li id="cite_note-FOOTNOTELumsden1994156_&_232-2"><span class="mw-cite-backlink">^ <a href="#cite_ref-FOOTNOTELumsden1994156_&_232_2-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-FOOTNOTELumsden1994156_&_232_2-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><a href="#CITEREFLumsden1994">Lumsden (1994)</a>, pp. 156 & 232.</span> </li> <li id="cite_note-FOOTNOTELumsden1994232-3"><span class="mw-cite-backlink">^ <a href="#cite_ref-FOOTNOTELumsden1994232_3-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-FOOTNOTELumsden1994232_3-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-FOOTNOTELumsden1994232_3-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-FOOTNOTELumsden1994232_3-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-FOOTNOTELumsden1994232_3-4"><sup><i><b>e</b></i></sup></a></span> <span class="reference-text"><a href="#CITEREFLumsden1994">Lumsden (1994)</a>, p. 232.</span> </li> <li id="cite_note-FOOTNOTEGunston1986171-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEGunston1986171_4-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFGunston1986">Gunston (1986)</a>, p. 171.</span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.shuttleworth.org/collection/se5a/">The Shuttleworth Collection - SE5a</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20190723153201/http://www.shuttleworth.org/collection/se5a/">Archived</a> 23 July 2019 at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a> www.shuttleworth.org Retrieved: 09 March 2017.</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=Wolseley_Viper&action=edit&section=9" 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><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFGunston1986" class="citation book cs1"><a href="/wiki/Bill_Gunston" title="Bill Gunston">Gunston, Bill</a> (1986). <i>World Encyclopaedia of Aero Engines</i>. <a href="/wiki/Wellingborough" title="Wellingborough">Wellingborough</a>: Patrick Stephens Ltd. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-85059-717-X" title="Special:BookSources/0-85059-717-X"><bdi>0-85059-717-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+Encyclopaedia+of+Aero+Engines&rft.place=Wellingborough&rft.pub=Patrick+Stephens+Ltd&rft.date=1986&rft.isbn=0-85059-717-X&rft.aulast=Gunston&rft.aufirst=Bill&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWolseley+Viper" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFLumsden1994" class="citation book cs1">Lumsden, Alec (1994). <i>British Piston Engines and Their Aircraft</i>. <a href="/wiki/Shrewsbury" title="Shrewsbury">Shrewsbury</a>: Airlife Publishing Ltd. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/1-85310-294-6" title="Special:BookSources/1-85310-294-6"><bdi>1-85310-294-6</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=British+Piston+Engines+and+Their+Aircraft&rft.place=Shrewsbury&rft.pub=Airlife+Publishing+Ltd&rft.date=1994&rft.isbn=1-85310-294-6&rft.aulast=Lumsden&rft.aufirst=Alec&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWolseley+Viper" class="Z3988"></span></li></ul> </div> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output 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.navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Wolseley_aeroengines" title="Template:Wolseley aeroengines"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Wolseley_aeroengines" title="Template talk:Wolseley aeroengines"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Wolseley_aeroengines" title="Special:EditPage/Template:Wolseley aeroengines"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Wolseley_aero_engines" style="font-size:114%;margin:0 4em"><a href="/wiki/Wolseley_Motors" title="Wolseley Motors">Wolseley</a> <a href="/wiki/Aircraft_engine" title="Aircraft engine">aero engines</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/V8_engine" title="V8 engine">V8 engines</a> (1910–1918)</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/Wolseley_60_hp" title="Wolseley 60 hp">60 hp</a></li> <li><a href="/wiki/Wolseley_60_hp" title="Wolseley 60 hp">80 hp</a></li> <li><a href="/wiki/Wolseley_160_hp" title="Wolseley 160 hp">160 hp</a></li> <li><a class="mw-selflink selflink">Adder</a></li> <li><a class="mw-selflink selflink">Python</a></li> <li><a class="mw-selflink selflink">Viper</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Radial_engine" title="Radial engine">Radial engines</a> (1931–1935)</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/Wolseley_Aquarius" title="Wolseley Aquarius">AR.7</a> (<a href="/wiki/Wolseley_Aquarius" title="Wolseley Aquarius">Aquarius</a>)</li> <li><a href="/wiki/Wolseley_Aries" title="Wolseley Aries">AR.9</a> (<a href="/wiki/Wolseley_Aries" title="Wolseley Aries">Aries</a>, <a href="/wiki/Wolseley_Aries" title="Wolseley Aries">Leo</a>, <a href="/wiki/Wolseley_Aries" title="Wolseley Aries">Libra</a>, <a href="/wiki/Wolseley_Aries" title="Wolseley Aries">Scorpio</a>)</li> <li class="mw-empty-elt"></li></ul> </div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=Wolseley_Viper&oldid=1245142618">https://en.wikipedia.org/w/index.php?title=Wolseley_Viper&oldid=1245142618</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 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