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subsection</span> </button> <ul id="toc-Design_and_development-sublist" class="vector-toc-list"> <li id="toc-Origins" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Origins"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.1</span> <span>Origins</span> </div> </a> <ul id="toc-Origins-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Variants" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Variants"> <div 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> <button aria-controls="toc-Applications-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 Applications subsection</span> </button> <ul id="toc-Applications-sublist" class="vector-toc-list"> <li id="toc-Wright-Hispano_E" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Wright-Hispano_E"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1</span> <span>Wright-Hispano E</span> </div> </a> <ul id="toc-Wright-Hispano_E-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Mitsubishi_"Hi"shiki" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Mitsubishi_"Hi"shiki"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2</span> <span>Mitsubishi "Hi"shiki</span> </div> </a> <ul id="toc-Mitsubishi_"Hi"shiki-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Comparative_table" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Comparative_table"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Comparative table</span> </div> </a> <ul id="toc-Comparative_table-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">5</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_(Hispano-Suiza_8a)" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Specifications_(Hispano-Suiza_8a)"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Specifications (Hispano-Suiza 8a)</span> </div> </a> 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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">6.3</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">7</span> <span>See also</span> </div> </a> <ul id="toc-See_also-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">8</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Bibliography" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Bibliography"> <div class="vector-toc-text"> <span class="vector-toc-numb">9</span> <span>Bibliography</span> </div> </a> <ul id="toc-Bibliography-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-External_links" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#External_links"> <div class="vector-toc-text"> <span class="vector-toc-numb">10</span> <span>External links</span> </div> </a> <ul id="toc-External_links-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Contents" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > 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href="https://cs.wikipedia.org/wiki/Hispano-Suiza_8" title="Hispano-Suiza 8 – Czech" lang="cs" hreflang="cs" data-title="Hispano-Suiza 8" 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/Hispano-Suiza_8" title="Hispano-Suiza 8 – German" lang="de" hreflang="de" data-title="Hispano-Suiza 8" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Hispano-Suiza_8" title="Hispano-Suiza 8 – Estonian" lang="et" hreflang="et" data-title="Hispano-Suiza 8" data-language-autonym="Eesti" data-language-local-name="Estonian" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Hispano-Suiza_8" title="Hispano-Suiza 8 – Spanish" lang="es" hreflang="es" data-title="Hispano-Suiza 8" 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%87%DB%8C%D8%B3%D9%BE%D8%A7%D9%86%D9%88-%D8%B3%D9%88%DB%8C%D8%B2%D8%A7_%DB%B8" title="هیسپانو-سویزا ۸ – Persian" lang="fa" hreflang="fa" data-title="هیسپانو-سویزا ۸" 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/Hispano-Suiza_V8" title="Hispano-Suiza V8 – French" lang="fr" hreflang="fr" data-title="Hispano-Suiza V8" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li 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src="//upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Hispano_Suiza_8_A_Brussel.jpg/300px-Hispano_Suiza_8_A_Brussel.jpg" decoding="async" width="300" height="260" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Hispano_Suiza_8_A_Brussel.jpg/450px-Hispano_Suiza_8_A_Brussel.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Hispano_Suiza_8_A_Brussel.jpg/600px-Hispano_Suiza_8_A_Brussel.jpg 2x" data-file-width="1389" data-file-height="1204" /></a></span> </td></tr> <tr> <td colspan="2" style="border-bottom: 1px solid #aaa;text-align:center;">Preserved "direct-drive" Hispano-Suiza 8 </td></tr> <tr> <th>Type </th> <td><a href="/wiki/V8_engine" title="V8 engine">V8</a> <a href="/wiki/Reciprocating_engine" title="Reciprocating engine">piston engine</a> </td></tr> <tr> <th>Manufacturer </th> <td><a href="/wiki/Hispano-Suiza" title="Hispano-Suiza">Hispano-Suiza</a> </td></tr> <tr> <th>First run </th> <td>1914 </td></tr> <tr> <th><span class="nowrap">Number built</span> </th> <td>49,800 </td></tr> <tr> <th>Variants </th> <td><a href="/wiki/Wolseley_Viper" title="Wolseley Viper">Wolseley Viper</a> </td></tr> </tbody></table> <p>The <b>Hispano-Suiza 8</b> is a <a href="/wiki/Internal_combustion_engine_cooling" title="Internal combustion engine cooling">water-cooled</a> <a href="/wiki/V8_engine" title="V8 engine">V8</a> <a href="/wiki/SOHC" class="mw-redirect" title="SOHC">SOHC</a> <a href="/wiki/Aero_engine" class="mw-redirect" title="Aero engine">aero engine</a> introduced by <a href="/wiki/Hispano-Suiza" title="Hispano-Suiza">Hispano-Suiza</a> in 1914 that went on to become the most commonly used liquid-cooled engine in the aircraft of the <a href="/wiki/Entente_Powers" class="mw-redirect" title="Entente Powers">Entente Powers</a> during the First World War. The original <b>Hispano-Suiza 8A</b> was rated at 140 hp (100 kW) and the later, larger displacement <b>Hispano-Suiza 8F</b> reached 330 hp (250 kW). </p><p>Hispano-Suiza 8 engines and variants produced by Hispano-Suiza and other companies under licence were built in twenty-one factories in Spain, France, Britain, Italy, and the U.S.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Derivatives of the engine were also used abroad to power numerous aircraft types and the engine can be considered as the ancestor of another successful engine by the same designer, the <a href="/wiki/Hispano-Suiza_12Y" title="Hispano-Suiza 12Y">Hispano-Suiza 12Y</a> (and Soviet <a href="/wiki/Klimov" title="Klimov">Klimov</a> V12 derivative aero-engines) which was in service during the Second World War. </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=Hispano-Suiza_8&action=edit&section=1" title="Edit section: Design and development"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Origins">Origins</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hispano-Suiza_8&action=edit&section=2" title="Edit section: Origins"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>At the beginning of World War I, the production lines of the <a href="/wiki/Barcelona" title="Barcelona">Barcelona</a> based <a href="/wiki/Hispano-Suiza" title="Hispano-Suiza">Hispano-Suiza</a> automobile and engine company were switched to the production of war materiel. Chief engineer <a href="/wiki/Marc_Birkigt" title="Marc Birkigt">Marc Birkigt</a> led work on an aircraft engine based on his successful V8 automobile engine.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> The resulting engine, called the Hispano-Suiza 8A (HS-31), made its first appearance in February 1915. </p><p>The first 8A kept the standard configuration of Birkigt's existing design: eight cylinders in 90° Vee configuration, a displacement of 11.76 litres (717.8 cu in) and a power output of 140 hp at 1,900 rpm. In spite of the similarities with the original design, the engine had been substantially refined. The crankshaft was machined from a solid piece of steel. The cylinder blocks were cast aluminium and of <a href="/wiki/Monobloc_head" class="mw-redirect" title="Monobloc head">monobloc</a> type that is, in one piece with the <a href="/wiki/SOHC" class="mw-redirect" title="SOHC">SOHC</a> cylinder heads. The inlet and exhaust ports were cast into the blocks, the valve seats were in the top face of the steel cylinder liners, which were screwed into the blocks. Using a rotating <a href="/wiki/Bevel_gear" title="Bevel gear">bevel gear</a>-driven tower shaft coming up from the crankcase along the rear end of each cylinder bank, with the final drive for each cylinder bank's camshaft accommodated within a semicircular bulge at the rear end of each valve cover. Aluminium parts were coated in vitreous enamel to reduce leakage. All parts subject to wear, and those critical for engine ignition were duplicated: <a href="/wiki/Spark_plug" title="Spark plug">spark plugs</a> for <a href="/wiki/Dual_ignition" title="Dual ignition">dual ignition</a> reliability, valve springs, <a href="/wiki/Ignition_magneto" title="Ignition magneto">magnetos</a>, etc. </p><p>Engine reliability and <a href="/wiki/Power_to_weight_ratio" class="mw-redirect" title="Power to weight ratio">power to weight ratios</a> were major problems in early aviation. The engine and its accessories weighed 185 kg (408 lb), making it 40% lighter than a <a href="/wiki/Rotary_engine" title="Rotary engine">rotary engine</a> of equivalent power. This empty weight does not include the radiator and coolant fluid. Generally, air-cooled engines are lighter than their equivalent horsepower water-cooled counterparts. For example, the <a href="/wiki/Bentley_BR.2" class="mw-redirect" title="Bentley BR.2">Bentley BR.2</a> rotary put out 230 hp (170 kW) and weighed 220 kg (490 lb), <a href="/wiki/Clerget_9B" title="Clerget 9B">Clerget 9B</a> rotary 130 hp (97 kW), 173 kg (381 lb). The new engine was presented to the French Ministry of War in February 1915, and tested for 15 hours at full power. This was standard procedure for a new engine design to be admitted into military service. However, because of lobbying by French engine manufacturers, the Spanish-made engine was ordered to undergo a bench test that no French-made engine had yet passed: a 50-hour run at full speed. The HS-31 was therefore sent back to <a href="/wiki/Chalais-Meudon" title="Chalais-Meudon">Chalais-Meudon</a> on July 21, 1915, and tested for 50 hours, succeeding against all expectations. The design also promised far more development-potential than rotary engines. This was despite being the most common type, then in use, for most aircraft. Also, rotary engines were getting close to the limits of their development at this time. Rotary engines of increased power generally had increased weight, which in turn increased the already serious gyroscopic torque generated by the engine's rotation. A further increase in torque was considered unacceptable, and the power to weight ratio of the new rotary engines under development did not appeal to aircraft designers. </p><p>French officials ordered production of the 8A to be started as soon as possible and issued a requirement for a new single-seat high-performance fighter aircraft using the new engine. The <a href="/wiki/Louis_B%C3%A9chereau" title="Louis Béchereau">Louis Béchereau</a>-designed <a href="/wiki/SPAD_VII" class="mw-redirect" title="SPAD VII">SPAD VII</a> was the result of this requirement and allowed the Allies to regain <a href="/wiki/Air_superiority" class="mw-redirect" title="Air superiority">air superiority</a> over the Germans. </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=Hispano-Suiza_8&action=edit&section=3" title="Edit section: Variants"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><i>Some data from:</i> British Piston Engines and their Aircraft<sup id="cite_ref-Lumsden_3-0" class="reference"><a href="#cite_note-Lumsden-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p><p><i>Note:</i> Hispano-Suiza company type numbers were prefixed by <i><b>HS-</b></i> or written in full as <b>Hispano-Suiza Type 31</b>, but military designations used the conventional system of Hispano-Suiza(engine manufacturer) 8(no of cylinders) A(engine series) b(variant) r(attribute), thus <b>Hispano-Suiza 8Abr</b>. <span class="anchor" id="h8"></span> </p> <dl><dt>8 (HS-31)</dt> <dd>100 kW (140 hp), initial production and test engines, with few applications, including early <a href="/wiki/Nieuport_14" title="Nieuport 14">Nieuport 14s</a>.</dd></dl> <p><span class="anchor" id="h8Aa"></span> </p> <dl><dt>8Aa (HS-31)</dt> <dd>110 kW (150 hp) at 2000 rpm, entered production in July 1915. Early HS-8A engines were plagued with various problems which required further work and was the standard powerplant for early-production SPAD VIIs and the Curtiss "Jenny" <a href="/wiki/Curtiss_JN_Jenny" title="Curtiss JN Jenny">JN-4H</a> variants. The demand for the Hispano-Suiza engine was such that other manufacturers began producing it under licence, in France, Great Britain (<a href="/wiki/Wolseley_Adder" class="mw-redirect" title="Wolseley Adder">Wolseley Adder</a>), Italy (Nagliati in Florence and <a href="/wiki/Itala_(company)" title="Itala (company)">Itala</a>/<a href="/wiki/SCAT_(automobile)" title="SCAT (automobile)">SCAT (automobile)</a> in Turin) and Russia. Total production of the HS-8Aa amounted to some 6,000 engines.</dd></dl> <p><span class="anchor" id="h8Ab"></span> </p> <dl><dt>8Ab (HS-34)</dt> <dd>130 kW (180 hp) at 2,100 rpm, increasing the <a href="/wiki/Compression_ratio" title="Compression ratio">compression ratio</a> from 4.7 to 5.3, Birkigt was able to increase the power output . The 8Ab began replacing the 8Aa on SPAD VIIs in early 1917.</dd></dl> <dl><dt>8Ac</dt> <dd></dd></dl> <p><span class="anchor" id="h8Ad"></span> </p> <dl><dt>8Ad</dt> <dd>(1929) 120 mm × 130 mm (4.7 in × 5.1 in) bore x stroke, 160 kW (210 hp) for take-off.<sup id="cite_ref-HS32_4-0" class="reference"><a href="#cite_note-HS32-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup></dd></dl> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Hispano-Suiza_8BE.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/53/Hispano-Suiza_8BE.jpg/220px-Hispano-Suiza_8BE.jpg" decoding="async" width="220" height="143" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/53/Hispano-Suiza_8BE.jpg/330px-Hispano-Suiza_8BE.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/5/53/Hispano-Suiza_8BE.jpg 2x" data-file-width="391" data-file-height="254" /></a><figcaption>Hispano-Suiza 8Be</figcaption></figure> <p><span class="anchor" id="h8B"></span> </p> <dl><dt>8B (HS-35)</dt> <dd>150 kW (200 hp), compression ratio 5.3:1, geared at 0.75:1. The <b>HS-36</b> was the 8B with a <a href="/wiki/Lewis_gun" title="Lewis gun">Lewis gun</a> firing through the propeller boss.</dd></dl> <p><span class="anchor" id="h8B_twin"></span> </p> <dl><dt>8B twin (HS-39)</dt> <dd>Coupled 8B engines</dd></dl> <p><span class="anchor" id="h8Ba"></span> </p> <dl><dt>8Ba</dt> <dd>150 kW (200 hp) at 2,300 rpm, low compression ratio of 4.7:1, spur geared at 0.585:1.</dd></dl> <p><span class="anchor" id="h8Bb"></span> </p> <dl><dt>8Bb</dt> <dd>150 kW (200 hp), compression ratio of 4.8:1, reduction gear 0.75:1. However the reduction gear system was fragile, and often broke down, sometimes with spectacular results ending up with the entire propeller, <a href="/wiki/Driveshaft" class="mw-redirect" title="Driveshaft">driveshaft</a> and driven gear parting company from the airframe. Progressive refinement of the engine brought the available power to 175 kW (235 hp) by the end of 1917.<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. (October 2013)">citation needed</span></a></i>]</sup></dd></dl> <p>The <b>8B</b>, <b>8Ba</b> and <b>8Bb</b> were used (a) to power the earliest versions of the <a href="/wiki/Royal_Aircraft_Factory_S.E.5#S.E.5a" title="Royal Aircraft Factory S.E.5">S.E.5a</a>, (b) along with the <b>8Bd</b>, the <a href="/wiki/SPAD_S.XIII" title="SPAD S.XIII">SPAD S.XIII</a>, (c) front-line active versions of the <a href="/wiki/Sopwith_Dolphin" title="Sopwith Dolphin">Sopwith Dolphin</a>, and (d) several other Allied aircraft types, with its gear reduction easily identifiable in vintage World War I photos, from its use of a clockwise (viewed from in front, otherwise known as a left hand tractor) rotation propeller. </p><p><span class="anchor" id="h8Bc"></span> </p> <dl><dt>8Bc</dt> <dd>160 kW (220 hp), compression ratio of 5.3:1, reduction gear 0.75:1.</dd></dl> <p><span class="anchor" id="h8Bd"></span> </p> <dl><dt>8Bd</dt> <dd>160 kW (220 hp), compression ratio of 5.3:1, reduction gear 0.75:1. <dl><dd><b>8Bda</b></dd></dl></dd></dl> <p><span class="anchor" id="h8Be"></span> </p> <dl><dt>8Be</dt> <dd>160 kW (220 hp), compression ratio of 5.3:1, reduction gear 0.75:1.</dd></dl> <p><span class="anchor" id="h8BeC"></span> </p> <dl><dt>8BeC (HS-38)</dt> <dd>The 8Be fitted with the 37 mm (1.457 in) <a href="/w/index.php?title=SAMC_Model_37_cannon&action=edit&redlink=1" class="new" title="SAMC Model 37 cannon (page does not exist)">SAMC Model 37 cannon</a>, or a similar weapon, firing through the propeller boss. A reduction gear equipped power-plant with a resultant clockwise rotation propeller like the 8B, produced 160 kW (220 hp) at 2,100 rpm. Two known weapons fitted were the SAMC with a rifled barrel and a smooth-bore cannon firing canister ammunition. The moteur-canon could fire a single shot at a time through the hollow drive shaft without propeller interference. This cannon mount required an "elevated" <a href="/wiki/Intake_manifold" class="mw-redirect" title="Intake manifold">intake manifold</a> design, bringing the intake "runners" straight off the inner surfaces of the cylinder banks to the <a href="/wiki/Updraft_carburetor" title="Updraft carburetor">updraft carburetor</a>'s <a href="/wiki/Plenum_chamber" title="Plenum chamber">plenum chamber</a>. The engine was used on the <a href="/wiki/SPAD_S.XII" title="SPAD S.XII">SPAD S.XII</a>.<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></dd> <dt>8Ca/220</dt> <dd>Cannon-equipped 168 kW (225 hp) at 2,100 rpm with 5.3:1 compression. Given the company designation <b>HS Type 38</b></dd> <dt>8Cb/180</dt> <dd>Cannon-equipped 160 kW (220 hp) at 2,000 rpm with 4.7:1 compression. Given the company designation <b>HS Type 44</b></dd> <dt>8Cc/220</dt> <dd>Cannon-equipped 160 kW (220 hp) at 2,100 rpm with 5.3:1 compression. Given the company designation <b>HS Type 44</b></dd></dl> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Hispano_Suiza_8Ca.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/6e/Hispano_Suiza_8Ca.jpg/220px-Hispano_Suiza_8Ca.jpg" decoding="async" width="220" height="165" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/6e/Hispano_Suiza_8Ca.jpg/330px-Hispano_Suiza_8Ca.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/6e/Hispano_Suiza_8Ca.jpg/440px-Hispano_Suiza_8Ca.jpg 2x" data-file-width="1643" data-file-height="1235" /></a><figcaption>Hispano Suiza 8Ca. The large shafts that drove the valves are visible at the back of the cylinder banks.</figcaption></figure> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Hispano-Suiza_8C_(MAE).JPG" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a0/Hispano-Suiza_8C_%28MAE%29.JPG/220px-Hispano-Suiza_8C_%28MAE%29.JPG" decoding="async" width="220" height="159" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a0/Hispano-Suiza_8C_%28MAE%29.JPG/330px-Hispano-Suiza_8C_%28MAE%29.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a0/Hispano-Suiza_8C_%28MAE%29.JPG/440px-Hispano-Suiza_8C_%28MAE%29.JPG 2x" data-file-width="2196" data-file-height="1587" /></a><figcaption>Hispano Suiza 8Ca</figcaption></figure> <dl><dt>Hispano-Suiza Type 40</dt> <dd>(8E ?)<sup class="noprint Inline-Template" style="margin-left:0.1em; white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Please_clarify" title="Wikipedia:Please clarify"><span title="The text near this tag may need clarification or removal of jargon. (January 2016)">clarification needed</span></a></i>]</sup></dd></dl> <dl><dt>Hispano-Suiza Type 41</dt> <dd>(8A ?)<sup class="noprint Inline-Template" style="margin-left:0.1em; white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Please_clarify" title="Wikipedia:Please clarify"><span title="The text near this tag may need clarification or removal of jargon. (January 2016)">clarification needed</span></a></i>]</sup></dd> <dt>8F (HS-42)</dt> <dd>220 kW (300 hp) at 2,100 rpm (eq. 750 lb·ft torque). The direct drive <b>8F</b> was a bored out version of the 8B, intended for use in bombers, with a displacement of 18.5 L (1,128.94 cu in). Despite the increased weight of 564 lb (256 kg), the 8F was also installed in fighters such as the <a href="/wiki/Nieuport-Delage_NiD_29" title="Nieuport-Delage NiD 29">Nieuport-Delage NiD 29</a> and <a href="/wiki/Martinsyde_Buzzard" title="Martinsyde Buzzard">Martinsyde Buzzard</a>, and would have powered the never-produced Mk.II version of the <a href="/wiki/Sopwith_Dolphin" title="Sopwith Dolphin">Sopwith Dolphin</a>. Engine speed being lower than that of the HS-8B, the reduction gear was deleted, thereby increasing engine reliability.</dd></dl> <dl><dt>8Fa</dt> <dd>generally similar to the 8F.</dd></dl> <dl><dt>8Fb</dt> <dd>220 kW (300 hp), aka <b>HS Type 42</b>, compression ratio of 5.3:1, direct drive.</dd></dl> <dl><dt>8Fd Special</dt> <dd>For the <a href="/wiki/CAMS_38" title="CAMS 38">CAMS 38</a> <a href="/wiki/Schneider_Trophy" title="Schneider Trophy">Schneider Trophy</a> racer developing 280 kW (380 hp)</dd></dl> <dl><dt>8Fe (HS-42VS)</dt> <dd>(1926) 140 mm × 150 mm (5.5 in × 5.9 in) bore x stroke, 260 kW (350 hp) for take-off.<sup id="cite_ref-HS32_4-1" class="reference"><a href="#cite_note-HS32-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup></dd></dl> <dl><dt><a href="/wiki/Wolseley_W.4A_Python_I" class="mw-redirect" title="Wolseley W.4A Python I">Wolseley W.4A Python I</a></dt> <dd>110 kW (150 hp), compression ratio of 4.7:1. License production of the 8Aa at <a href="/w/index.php?title=Wolseley_Motors_Ltd.&action=edit&redlink=1" class="new" title="Wolseley Motors Ltd. (page does not exist)">Wolseley Motors Ltd.</a></dd></dl> <dl><dt><a href="/wiki/Wolseley_W.4A_Python_II" class="mw-redirect" title="Wolseley W.4A Python II">Wolseley W.4A Python II</a></dt> <dd>130 kW (180 hp), compression ratio of 5.3 :1.</dd></dl> <dl><dt><a href="/wiki/Wolseley_W.4A_Viper" class="mw-redirect" title="Wolseley W.4A Viper">Wolseley W.4A Viper</a></dt> <dd>150 kW (200 hp), compression ratio of 5.3 :1. Wolseley's engineers removed problems with the crankshaft and increased the compression ratio to give more power, with some early engines having a compression ratio of 5.6:1.</dd></dl> <dl><dt><a href="/wiki/Wolseley_W.4A_Viper_II" class="mw-redirect" title="Wolseley W.4A Viper II">Wolseley W.4A Viper II</a></dt> <dd>160 kW (210 hp) at 2,000 rpm.<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></dd></dl> <dl><dt><a href="/wiki/Wolseley_W.4B_Adder_I" class="mw-redirect" title="Wolseley W.4B Adder I">Wolseley W.4B Adder I</a></dt> <dd>150 kW (200 hp), compression ratio of 4.7 :1, reduction spur gear to 0.593:1.</dd></dl> <dl><dt><a href="/wiki/Wolseley_W.4B_Adder_II" class="mw-redirect" title="Wolseley W.4B Adder II">Wolseley W.4B Adder II</a></dt> <dd>150 kW (200 hp), compression ratio of 4.7 :1, reduction spur gear to 0.593:1. With stronger crankshaft webs.</dd> <dt><a href="/wiki/Wolseley_W.4B_Adder_III" class="mw-redirect" title="Wolseley W.4B Adder III">Wolseley W.4B Adder III</a></dt> <dd>150 kW (200 hp), compression ratio of 4.7 :1, reduction spur gear to 0.593:1. With balanced crankshafts.</dd> <dt>Wright-Hisso A</dt> <dd>Wright-Martin built Type 34/HS8Aa 150 hp (112 kW) at 1,400 rpm and 4.72:1 compression.<sup id="cite_ref-Angle_7-0" class="reference"><a href="#cite_note-Angle-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></dd> <dt>Wright-Hisso B</dt> <dd>4-cyl in-line water-cooled 56 kW (75 hp) 120 mm × 130 mm (4.7 in × 5.1 in)<sup id="cite_ref-Angle_7-1" class="reference"><a href="#cite_note-Angle-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></dd> <dt>Wright-Hisso C</dt> <dd>150 kW (200 hp) geared A<sup id="cite_ref-Angle_7-2" class="reference"><a href="#cite_note-Angle-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></dd> <dt>Wright-Hisso D</dt> <dd>150 kW (200 hp) geared A with cannon<sup id="cite_ref-Angle_7-3" class="reference"><a href="#cite_note-Angle-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></dd> <dt>Wright-Hisso E</dt> <dd>130 kW (180 hp) at 1,700 rpm and 5.33:1 compression(HC 'I')<sup id="cite_ref-Angle_7-4" class="reference"><a href="#cite_note-Angle-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></dd> <dt>Wright-Hisso E-2</dt> <dd>(HC 'E')<sup id="cite_ref-Angle_7-5" class="reference"><a href="#cite_note-Angle-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></dd> <dt>Wright-Hisso F</dt> <dd>('D' without cannon)<sup id="cite_ref-Angle_7-6" class="reference"><a href="#cite_note-Angle-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></dd> <dt>Wright-Hisso H</dt> <dd>220 kW (300 hp), based on the Type 42/HS8F<sup id="cite_ref-Angle_7-7" class="reference"><a href="#cite_note-Angle-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></dd> <dt>Wright-Hisso H-2</dt> <dd>improved 'H'<sup id="cite_ref-Angle_7-8" class="reference"><a href="#cite_note-Angle-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></dd> <dt>Wright-Hisso I</dt> <dd><sup id="cite_ref-Angle_7-9" class="reference"><a href="#cite_note-Angle-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></dd> <dt>Wright-Hisso K</dt> <dd>H with 37mm Baldwin cannon<sup id="cite_ref-Angle_7-10" class="reference"><a href="#cite_note-Angle-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></dd> <dt>Wright-Hisso K-2</dt> <dd><sup id="cite_ref-Angle_7-11" class="reference"><a href="#cite_note-Angle-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></dd> <dt>Wright-Hisso M</dt> <dd>experimental 300 hp<sup id="cite_ref-Angle_7-12" class="reference"><a href="#cite_note-Angle-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></dd> <dt>Wright-Hisso T</dt> <dd></dd> <dt>Wright-Hisso 180 hp V-8</dt> <dd>direct drive</dd> <dt>Wright-Hisso 220 hp V-8</dt> <dd>geared drive</dd> <dt>Wright-Hisso 300 hp V-8</dt> <dd>geared drive</dd> <dt>M-6</dt> <dd>A 220 kW (300 hp) <a href="/wiki/Soviet_Union" title="Soviet Union">Soviet Union</a> produced copy of the 8Fb</dd> <dt>Wright-Hisso V-720</dt></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=Hispano-Suiza_8&action=edit&section=4" title="Edit section: Applications"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Austin-Ball_A.F.B.1" title="Austin-Ball A.F.B.1">Austin-Ball A.F.B.1</a> (single prototype)</li> <li><a href="/wiki/Avia_BH-21" title="Avia BH-21">Avia BH-21</a> (from 1925)</li> <li><a href="/wiki/Avia_BH-22" title="Avia BH-22">Avia BH-22</a></li> <li><a href="/wiki/Bartel_BM-5" class="mw-redirect" title="Bartel BM-5">Bartel BM-5</a></li> <li><a href="/wiki/Bernard_SIMB_AB_10" title="Bernard SIMB AB 10">Bernard SIMB AB 10</a></li> <li><a href="/wiki/Blanchard_Brd.1" title="Blanchard Brd.1">Blanchard Brd.1</a></li> <li><a href="/wiki/Caudron_R.11" title="Caudron R.11">Caudron R.11</a> (8Bba)</li> <li><a href="/wiki/Caudron_C.59" title="Caudron C.59">Caudron C.59</a></li> <li><a href="/wiki/Caudron_C.61" title="Caudron C.61">Caudron C.61</a> (8Ac)</li> <li><a href="/wiki/Curtiss_JN-4" class="mw-redirect" title="Curtiss JN-4">Curtiss JN-4</a>H <i>Jenny</i> (rare subvariant)</li> <li><a href="/wiki/De_Bruy%C3%A8re_C_1" title="De Bruyère C 1">De Bruyère C 1</a></li> <li><a href="/wiki/Descamps_27" title="Descamps 27">Descamps 27</a> (8Fb)</li> <li><a href="/wiki/Dewoitine_D.1" title="Dewoitine D.1">Dewoitine D.1</a> (8Fb)</li> <li><a href="/wiki/Farman_F.121_Jabiru" class="mw-redirect" title="Farman F.121 Jabiru">Farman F.121 Jabiru</a> (8Ac)</li> <li><a href="/wiki/FBA_Type_H" title="FBA Type H">FBA Type H</a> (8Aa)</li> <li><a href="/wiki/Felixstowe_F.1" title="Felixstowe F.1">Felixstowe F.1</a></li> <li><a href="/wiki/Fokker_D.IX" title="Fokker D.IX">Fokker D.IX</a></li> <li><a href="/wiki/Fokker_D.X" title="Fokker D.X">Fokker D.X</a> (8Fb)</li> <li><a href="/wiki/Fokker_D.XII" title="Fokker D.XII">Fokker D.XII</a> (8F) initial design only</li> <li><a href="/wiki/Fokker_S.III" title="Fokker S.III">Fokker S.III</a></li> <li><a href="/wiki/Gourdou-Leseurre_GL.21" class="mw-redirect" title="Gourdou-Leseurre GL.21">Gourdou-Leseurre GL.21</a></li> <li><a href="/wiki/Hanriot_HD.5" title="Hanriot HD.5">Hanriot HD.5</a></li> <li><a href="/wiki/Hanriot_HD.15" title="Hanriot HD.15">Hanriot HD.15</a></li> <li><a href="/wiki/Hanriot_HD.20" title="Hanriot HD.20">Hanriot HD.20</a></li> <li><a href="/wiki/Itoh_Emi_29" title="Itoh Emi 29">Itoh Emi 29</a></li> <li><a href="/wiki/Letord_Let.1" class="mw-redirect" title="Letord Let.1">Letord Let.1</a> (8A)</li> <li><a href="/wiki/Letord_Let.2" class="mw-redirect" title="Letord Let.2">Letord Let.2</a> & Let.3 (8Ba)</li> <li><a href="/wiki/Letov_%C5%A0-7" title="Letov Š-7">Letov Š-7</a> (8Fb)</li> <li><a href="/wiki/Letov_%C5%A0-13" title="Letov Š-13">Letov Š-13</a> (8Fb)</li> <li><a href="/wiki/Letov_%C5%A0-14" title="Letov Š-14">Letov Š-14</a> (8Fb)</li> <li><a href="/wiki/Levasseur_PL.1" title="Levasseur PL.1">Levasseur PL.1</a> (8Ab)</li> <li><a href="/wiki/Martinsyde_F.4_Buzzard" class="mw-redirect" title="Martinsyde F.4 Buzzard">Martinsyde F.4 Buzzard</a> (8Fb)</li> <li><a href="/wiki/Nieuport_14" title="Nieuport 14">Nieuport 14</a> (8A)</li> <li><a href="/wiki/Nieuport-Delage_NiD_29" title="Nieuport-Delage NiD 29">Nieuport-Delage NiD 29</a> (8Fb)</li> <li><a href="/wiki/Nieuport-Delage_NiD_38" title="Nieuport-Delage NiD 38">Nieuport-Delage NiD 38</a> (8Ab)</li> <li><a href="/wiki/Nieuport-Delage_Sesquiplan" title="Nieuport-Delage Sesquiplan">Nieuport-Delage Sesquiplan</a> (8Fb)</li> <li><a href="/wiki/Royal_Aircraft_Factory_S.E.5" title="Royal Aircraft Factory S.E.5">Royal Aircraft Factory S.E.5</a> (8Aa) and <a href="/wiki/Royal_Aircraft_Factory_S.E.5#S.E.5a" title="Royal Aircraft Factory S.E.5">S.E.5a</a> (8B, 8Ba or 8Bb on earliest versions and the <a href="/wiki/Wolseley_Viper" title="Wolseley Viper">Wolseley Viper</a> derivative on later models)</li> <li><a href="/wiki/Sopwith_Dolphin" title="Sopwith Dolphin">Sopwith Dolphin</a> (8B)</li> <li><a href="/wiki/Sopwith_B.1" title="Sopwith B.1">Sopwith B.1</a> prototypes (8Ba)</li> <li><a href="/wiki/SPAD_S.VII" title="SPAD S.VII">SPAD S.VII</a> (8A)</li> <li><a href="/wiki/SPAD_S.XI" title="SPAD S.XI">SPAD S.XI</a> (8Be)</li> <li><a href="/wiki/SPAD_S.XII" title="SPAD S.XII">SPAD S.XII</a> (8Cb)</li> <li><a href="/wiki/SPAD_S.XIII" title="SPAD S.XIII">SPAD S.XIII</a> (8Be)</li> <li><a href="/wiki/Standard_J" title="Standard J">Standard J</a>-1 (post-war modification)</li> <li><a href="/wiki/Waco_DSO" class="mw-redirect" title="Waco DSO">Waco DSO</a> (8a)</li> <li><a href="/wiki/Wibault_1" title="Wibault 1">Wibault 1</a> (single prototype)</li></ul> <div class="mw-heading mw-heading3"><h3 id="Wright-Hispano_E">Wright-Hispano E</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hispano-Suiza_8&action=edit&section=5" title="Edit section: Wright-Hispano E"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Boeing_Model_21" class="mw-redirect" title="Boeing Model 21">Boeing NB-2</a></li> <li><a href="/wiki/Boeing_AT-3" class="mw-redirect" title="Boeing AT-3">AT-3</a></li> <li><a href="/wiki/Consolidated_PT-1" class="mw-redirect" title="Consolidated PT-1">Consolidated PT-1</a></li> <li><a href="/wiki/Cox-Klemin_TW-2" title="Cox-Klemin TW-2">Cox-Klemin TW-2</a></li> <li><a href="/wiki/P-1_Hawk" class="mw-redirect" title="P-1 Hawk">Curtiss AT-4</a></li> <li><a href="/wiki/Dayton-Wright_TW-3" class="mw-redirect" title="Dayton-Wright TW-3">Dayton-Wright TW-3</a></li> <li><a href="/wiki/Huff-Daland_TW-5" title="Huff-Daland TW-5">Huff-Daland TW-5</a></li> <li><a href="/wiki/Loening_M-8" title="Loening M-8">Loening M-8</a></li> <li><a href="/wiki/Naval_Aircraft_Factory_TS" title="Naval Aircraft Factory TS">Naval Aircraft Factory TS-3</a></li> <li><a href="/wiki/Travel_Air_2000" title="Travel Air 2000">Travel Air 3000</a></li> <li><a href="/wiki/Vought_VE-7" title="Vought VE-7">Vought VE-7</a></li> <li><a href="/wiki/Waco_10" title="Waco 10">Waco DSO</a></li></ul> <div class="mw-heading mw-heading3"><h3 id="Mitsubishi_"Hi"shiki"><span id="Mitsubishi_.22Hi.22shiki"></span>Mitsubishi "Hi"shiki</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hispano-Suiza_8&action=edit&section=6" title="Edit section: Mitsubishi "Hi"shiki"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <dl><dt>200 HP (8B)</dt></dl> <ul><li><a href="/wiki/Yokosuka_Ro-go_Ko-gata" title="Yokosuka Ro-go Ko-gata">Yokosuka Ro-go Ko-gata</a></li> <li><a href="/wiki/Hanza-shiki_suij%C5%8D_teisatsuki" class="mw-redirect" title="Hanza-shiki suijō teisatsuki">Hanza-shiki suijō teisatsuki</a> (ハンザ式水上偵察機, Type Hansa Surveillance Floatplane)</li></ul> <dl><dt>300 HP (8F)</dt></dl> <ul><li><a href="/wiki/Mitsubishi_1MF" title="Mitsubishi 1MF">Mitsubishi 1MF</a></li> <li><a href="/wiki/Mitsubishi_2MR" title="Mitsubishi 2MR">Mitsubishi 2MR</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Comparative_table">Comparative table</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hispano-Suiza_8&action=edit&section=7" title="Edit section: Comparative table"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <table class="wikitable"> <caption><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. (August 2014)">citation needed</span></a></i>]</sup> </caption> <tbody><tr> <th>Model </th> <th>8A </th> <th>8Aa </th> <th>8Ab </th> <th>8B </th> <th>8F </th></tr> <tr> <td>Bore (mm)</td> <td colspan="4">120</td> <td>140 </td></tr> <tr> <td>Stroke (mm)</td> <td colspan="4">130</td> <td>150 </td></tr> <tr> <td>Displacement (l)</td> <td colspan="4">11.76</td> <td>18.47 </td></tr> <tr> <td>Compression ratio</td> <td colspan="2">4.7</td> <td colspan="3">5.3 </td></tr> <tr> <td>Length (m)</td> <td>1.19</td> <td>1.25</td> <td>1.31</td> <td>1.36</td> <td>1.32 </td></tr> <tr> <td>Width (m)</td> <td>0.81</td> <td>0.83</td> <td>0.85</td> <td>0.86</td> <td>0.89 </td></tr> <tr> <td>Height (m)</td> <td>0.77</td> <td>0.81</td> <td>0.87</td> <td>0.90</td> <td>0.88 </td></tr> <tr> <td>Weight(kg)</td> <td>195</td> <td>215</td> <td>230</td> <td>236</td> <td>256 </td></tr> <tr> <td>Power output (hp)</td> <td>140</td> <td>150</td> <td>180</td> <td>200/235</td> <td>300 </td></tr> <tr> <td>at (rpm)</td> <td>1900</td> <td>2000</td> <td>2100</td> <td>2300</td> <td>2100 </td></tr></tbody></table> <div style="clear:both;" class=""></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=Hispano-Suiza_8&action=edit&section=8" title="Edit section: Engines on display"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>A Hispano-Suiza 8Aa Type 34, made in 1916, is on public display at Museo de Aeronáutica y Astronáutica at Madrid, Spain.</li> <li>A Wright-Hisso 8A is on public display at the <a href="/wiki/Aerospace_Museum_of_California" title="Aerospace Museum of California">Aerospace Museum of California</a>.</li> <li>A Wright-Hisso 8A is on public display at the <a href="/wiki/National_Museum_of_the_U.S._Air_Force" class="mw-redirect" title="National Museum of the U.S. Air Force">National Museum of the U.S. Air Force</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></li></ul> <div class="mw-heading mw-heading2"><h2 id="Specifications_(Hispano-Suiza_8a)"><span id="Specifications_.28Hispano-Suiza_8a.29"></span>Specifications (Hispano-Suiza 8a)</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hispano-Suiza_8&action=edit&section=9" title="Edit section: Specifications (Hispano-Suiza 8a)"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p class="mw-empty-elt"> </p> <div class="mw-heading mw-heading3"><h3 id="General_characteristics">General characteristics</h3></div> <ul><li><b>Type:</b> 8-cylinder liquid-cooled <a href="/wiki/V8_engine" title="V8 engine">Vee</a> piston engine</li> <li><b><a href="/wiki/Bore_(engine)" title="Bore (engine)">Bore</a>:</b> 120 mm (4.724 in)</li> <li><b><a href="/wiki/Stroke_(engine)" title="Stroke (engine)">Stroke</a>:</b> 130 mm (5.118 in)</li> <li><b><a href="/wiki/Engine_displacement" title="Engine displacement">Displacement</a>:</b> 11.76 L (717.77 in<sup>3</sup>)</li> <li><b><a href="/wiki/Dry_weight" class="mw-redirect" title="Dry weight">Dry weight</a>:</b> 202 kg (445 lb)</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> SOHC (single overhead cam)</li> <li><b>Fuel system:</b> 1 Claudel or Zenith updraft carburetor</li> <li><b>Cooling system:</b> liquid</li></ul> <div class="mw-heading mw-heading3"><h3 id="Performance">Performance</h3></div> <ul><li><b>Power output:</b> 150 hp (112 kW) at 1,700 rpm</li> <li><b>Fuel consumption:</b> 310 g/(kW•h) (0.51 lb/(hp•h))</li> <li><b>Oil consumption:</b> 18.2 g/(kW•h) (0.03 lb/(hp•h))</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=Hispano-Suiza_8&action=edit&section=10" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p> <b>Related development</b> </p> <ul><li><a href="/wiki/Harkness_Hornet" title="Harkness Hornet">Harkness Hornet</a>, a single bank of the Hispano-Suiza, on an Australian-made crankcase.</li> <li><a href="/wiki/Wolseley_Viper" title="Wolseley Viper">Wolseley Viper</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=Hispano-Suiza_8&action=edit&section=11" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist reflist-columns references-column-width" style="column-width: 30em;"> <ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text">Browne, T.C. "Retrospect: 1924 Hispano-Suiza H6c Speedster", <i>Motor Trend</i>, 4/84, p.118.</span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text">One prototype of this aircraft engine is preserved in the "Museo de Aeronáutica y Astronáutica" in Madrid.</span> </li> <li id="cite_note-Lumsden-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-Lumsden_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 .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="CITEREFLumsden2003" class="citation book cs1">Lumsden, Alec (2003). <i>British Piston Engines and their Aircraft</i>. Marlborough, Wiltshire: Airlife Publishing. <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=Marlborough%2C+Wiltshire&rft.pub=Airlife+Publishing&rft.date=2003&rft.isbn=1-85310-294-6&rft.aulast=Lumsden&rft.aufirst=Alec&rfr_id=info%3Asid%2Fen.wikipedia.org%3AHispano-Suiza+8" class="Z3988"></span></span> </li> <li id="cite_note-HS32-4"><span class="mw-cite-backlink">^ <a href="#cite_ref-HS32_4-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-HS32_4-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation book cs1 cs1-prop-foreign-lang-source"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20150725185510/http://dev.museesafran.com/wp-content/uploads/2012/10/1350046816-livres-espace-patrimoine-saf2012_0048384.pdf"><i>Moteurs d'Aviation Hispano-Suiza</i></a> <span class="cs1-format">(PDF)</span> (in French). Boix-Colombes: Société Française Hispano-Suiza. 1932. Archived from <a rel="nofollow" class="external text" href="http://dev.museesafran.com/wp-content/uploads/2012/10/1350046816-livres-espace-patrimoine-saf2012_0048384.pdf">the original</a> <span class="cs1-format">(PDF)</span> on 2015-07-25.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Moteurs+d%27Aviation+Hispano-Suiza&rft.place=Boix-Colombes&rft.pub=Soci%C3%A9t%C3%A9+Fran%C3%A7aise+Hispano-Suiza&rft.date=1932&rft_id=http%3A%2F%2Fdev.museesafran.com%2Fwp-content%2Fuploads%2F2012%2F10%2F1350046816-livres-espace-patrimoine-saf2012_0048384.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AHispano-Suiza+8" class="Z3988"></span></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"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20100607135126/http://www.nasm.si.edu/collections/artifact.cfm?id=A19340002000">"V-8, Hispano-Suiza Model 8 Ca"</a>. Archived from <a rel="nofollow" class="external text" href="http://www.nasm.si.edu/collections/artifact.cfm?id=A19340002000">the original</a> on 7 June 2010<span class="reference-accessdate">. Retrieved <span class="nowrap">24 October</span> 2010</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=V-8%2C+Hispano-Suiza+Model+8+Ca&rft_id=http%3A%2F%2Fwww.nasm.si.edu%2Fcollections%2Fartifact.cfm%3Fid%3DA19340002000&rfr_id=info%3Asid%2Fen.wikipedia.org%3AHispano-Suiza+8" class="Z3988"></span></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external free" href="http://www.flightglobal.com/pdfarchive/view/1919/1919%20-%200199.html">http://www.flightglobal.com/pdfarchive/view/1919/1919%20-%200199.html</a> <i>Flight</i> February 13, 1919 p 199</span> </li> <li id="cite_note-Angle-7"><span class="mw-cite-backlink">^ <a href="#cite_ref-Angle_7-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Angle_7-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-Angle_7-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-Angle_7-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-Angle_7-4"><sup><i><b>e</b></i></sup></a> <a href="#cite_ref-Angle_7-5"><sup><i><b>f</b></i></sup></a> <a href="#cite_ref-Angle_7-6"><sup><i><b>g</b></i></sup></a> <a href="#cite_ref-Angle_7-7"><sup><i><b>h</b></i></sup></a> <a href="#cite_ref-Angle_7-8"><sup><i><b>i</b></i></sup></a> <a href="#cite_ref-Angle_7-9"><sup><i><b>j</b></i></sup></a> <a href="#cite_ref-Angle_7-10"><sup><i><b>k</b></i></sup></a> <a href="#cite_ref-Angle_7-11"><sup><i><b>l</b></i></sup></a> <a href="#cite_ref-Angle_7-12"><sup><i><b>m</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFAngle1921" class="citation book cs1">Angle, Glenn D. (1921). <a rel="nofollow" class="external text" href="https://archive.org/details/airplaneenginee00anglgoog"><i>Airplane Engine Encyclopedia</i></a>. Dayton, Ohio: THE OTTERBEIN PRESS.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Airplane+Engine+Encyclopedia&rft.place=Dayton%2C+Ohio&rft.pub=THE+OTTERBEIN+PRESS&rft.date=1921&rft.aulast=Angle&rft.aufirst=Glenn+D.&rft_id=https%3A%2F%2Farchive.org%2Fdetails%2Fairplaneenginee00anglgoog&rfr_id=info%3Asid%2Fen.wikipedia.org%3AHispano-Suiza+8" class="Z3988"></span></span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-8">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.nationalmuseum.af.mil/Visit/Museum-Exhibits/Fact-Sheets/Display/Article/197439/hispano-suiza-model-a/">"Hispano-Suiza Model A"</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Hispano-Suiza+Model+A&rft_id=https%3A%2F%2Fwww.nationalmuseum.af.mil%2FVisit%2FMuseum-Exhibits%2FFact-Sheets%2FDisplay%2FArticle%2F197439%2Fhispano-suiza-model-a%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AHispano-Suiza+8" class="Z3988"></span></span> </li> </ol></div> <ul><li>Janes Fighting Aircraft of World War I by Michael John Haddrick Taylor (Random House Group Ltd. 20 Vauxhall Bridge Road, London SW1V 2SA, 2001, <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/1-85170-347-0" title="Special:BookSources/1-85170-347-0">1-85170-347-0</a>), page 289</li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFHartmann2005" class="citation web cs1 cs1-prop-foreign-lang-source">Hartmann, Gérard (December 2005). <a rel="nofollow" class="external text" href="http://www.hydroretro.net/etudegh/v8hispanosuiza.pdf">"Le V8 Hispano-Suiza"</a> <span class="cs1-format">(PDF)</span> (in French). pp. 6 pages.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Le+V8+Hispano-Suiza&rft.pages=6+pages&rft.date=2005-12&rft.aulast=Hartmann&rft.aufirst=G%C3%A9rard&rft_id=http%3A%2F%2Fwww.hydroretro.net%2Fetudegh%2Fv8hispanosuiza.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AHispano-Suiza+8" class="Z3988"></span></li></ul> <div class="mw-heading mw-heading2"><h2 id="Bibliography">Bibliography</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hispano-Suiza_8&action=edit&section=12" title="Edit section: Bibliography"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>"Los motores V8 de aviación de La Hispano Suiza (1914–1918)" by Jacinto García Barbero (Edited by Asociación de Amigos del Museo Del Aire, Museo de Aeronáutica y Astronáutica, CECAF. Depósito legal: M-41737-2005) 219 pages.</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=Hispano-Suiza_8&action=edit&section=13" 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 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rel="nofollow" class="external text" href="https://www.youtube.com/watch?v=jUUXSudEBaQ">Old Rhinebeck Aerodrome's Hispano-Suiza V8 powered Curtiss JN-4H Jenny</a></li> <li><a rel="nofollow" class="external text" href="http://www.aviation-history.com/engines/e4.htm">Aviation History</a></li> <li><a rel="nofollow" class="external text" href="http://www.pilotfriend.com/aero_engines/aero_hissi.htm">Pilot Friend Aero Engines</a></li> <li>Hispano-Suiza 8Aa at Museo de Aeronáutica y Astronáutica.<a rel="nofollow" class="external autonumber" href="https://ejercitodelaire.defensa.gob.es/EA/museodelaire/actividades/pieza/3T2018.pdf">[1]</a></li> <li><a rel="nofollow" class="external text" href="https://heritage.medialibrary.safran-group.com/Heritage/media/63517">Moteurs d'Aviation License Hispano-Suiza (Compagnie de Fives-Lille)</a>, engine manual (types 150 hp, 180 hp, 200 hp and 220 hp)</li></ul> <div class="navbox-styles"><style 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