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Available in 5 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-5" 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">5 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Avia_BH-11" title="Avia BH-11 – Czech" lang="cs" hreflang="cs" data-title="Avia BH-11" 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/Avia_BH-11" title="Avia BH-11 – German" lang="de" hreflang="de" data-title="Avia BH-11" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%A2%D9%88%DB%8C%D8%A7_%D8%A8%DB%8C%E2%80%8C%D8%A7%DA%86-%DB%B1%DB%B1" title="آویا بی‌اچ-۱۱ – Persian" lang="fa" hreflang="fa" data-title="آویا بی‌اچ-۱۱" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Avia_BH-11" title="Avia BH-11 – Dutch" lang="nl" hreflang="nl" data-title="Avia BH-11" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-tg mw-list-item"><a href="https://tg.wikipedia.org/wiki/Avia_BH-11" 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.hidden-content{text-align:left}@media all and (max-width:500px){.mw-parser-output .hidden-begin{width:auto!important;clear:none!important;float:none!important}}</style><div class="hidden-begin mw-collapsible mw-collapsed" style="font-size:100%; padding: 0px;"><div class="hidden-title skin-nightmode-reset-color" style="text-align:center; padding-right: 3em; font-weight: normal; text-align: left">You can help <b>expand this article with text translated from <a href="https://cs.wikipedia.org/wiki/Avia_BH-11" class="extiw" title="cs:Avia BH-11">the corresponding article</a> in Czech</b>.  <i><small>(March 2020)</small></i> <small>Click [show] for important translation instructions.</small></div><div class="hidden-content mw-collapsible-content" style=""> <ul><li><a rel="nofollow" class="external text" href="https://translate.google.com/translate?&u=https%3A%2F%2Fcs.wikipedia.org%2Fwiki%2FAvia_BH-11&sl=cs&tl=en&prev=_t&hl=en">View</a> a machine-translated version of the Czech article.</li> <li>Machine translation, like <a rel="nofollow" class="external text" href="https://deepl.com">DeepL</a> or <a rel="nofollow" class="external text" href="https://translate.google.com/">Google Translate</a>, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia.</li> <li>Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article.</li> <li>You <b>must</b> provide <a href="/wiki/Wikipedia:Copying_within_Wikipedia" title="Wikipedia:Copying within Wikipedia">copyright attribution</a> in the <a href="/wiki/Help:Edit_summary" title="Help:Edit summary">edit summary</a> accompanying your translation by providing an <a href="/wiki/Help:Interlanguage_links" title="Help:Interlanguage links">interlanguage link</a> to the source of your translation. A model attribution edit summary is <code>Content in this edit is translated from the existing Czech Wikipedia article at [[:cs:Avia BH-11]]; see its history for attribution.</code></li> <li>You may also add the template <code>{{Translated|cs|Avia BH-11}}</code> to the <a href="/wiki/Talk:Avia_BH-11" title="Talk:Avia BH-11">talk page</a>.</li> <li>For more guidance, see <a href="/wiki/Wikipedia:Translation" title="Wikipedia:Translation">Wikipedia:Translation</a>.</li></ul></div></div></div></td></tr></tbody></table> <style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><style data-mw-deduplicate="TemplateStyles:r1248642317">.mw-parser-output .ib-aircraft .infobox-above{line-height:1.6em;background-color:#eee}.mw-parser-output .ib-aircraft .infobox-header{border-top:1px solid #a2a9b1;border-bottom:1px solid #a2a9b1;line-height:23px;background-color:#eee}.mw-parser-output .ib-aircraft-caption{padding:0.3em 0 0 0}.mw-parser-output .ib-aircraft-caption-left .infobox-full-data,.mw-parser-output .ib-aircraft-caption-left .infobox-data,.mw-parser-output .ib-aircraft-caption-left .infobox-label{text-align:left}.mw-parser-output .ib-aircraft .mergedbottomrow .infobox-full-data,.mw-parser-output .ib-aircraft .mergedbottomrow .infobox-data,.mw-parser-output .ib-aircraft .mergedbottomrow .infobox-label{border-bottom:1px solid #a2a9b1}@media(min-width:720px){.mw-parser-output .ib-aircraft .infobox-label{width:30%;padding-right:3px}.mw-parser-output .ib-aircraft .infobox-data{width:50%}}</style><table class="infobox ib-aircraft vcard"><tbody><tr><th colspan="2" class="infobox-above">BH-11</th></tr><tr><td colspan="2" class="infobox-full-data"><span typeof="mw:File"><a href="/wiki/File:Leteck%C3%A9_muzeum_Kbely_(168).jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/97/Leteck%C3%A9_muzeum_Kbely_%28168%29.jpg/300px-Leteck%C3%A9_muzeum_Kbely_%28168%29.jpg" decoding="async" width="300" height="225" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/97/Leteck%C3%A9_muzeum_Kbely_%28168%29.jpg/450px-Leteck%C3%A9_muzeum_Kbely_%28168%29.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/97/Leteck%C3%A9_muzeum_Kbely_%28168%29.jpg/600px-Leteck%C3%A9_muzeum_Kbely_%28168%29.jpg 2x" data-file-width="4416" data-file-height="3312" /></a></span></td></tr><tr><th colspan="2" class="infobox-header">General information</th></tr><tr><th scope="row" class="infobox-label">Type</th><td class="infobox-data">Sports plane</td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Aerospace_manufacturer" title="Aerospace manufacturer">Manufacturer</a></th><td class="infobox-data"><a href="/wiki/Avia_Motors" title="Avia Motors">Avia</a></td></tr><tr><th scope="row" class="infobox-label">Designer</th><td class="infobox-data"><div> <a href="/wiki/Pavel_Bene%C5%A1" title="Pavel Beneš">Pavel Beneš</a> and <a href="/wiki/Miroslav_Hajn" title="Miroslav Hajn">Miroslav Hajn</a></div></td></tr><tr><th scope="row" class="infobox-label">Number built</th><td class="infobox-data">ca. 20</td></tr><tr><th colspan="2" class="infobox-header">History</th></tr><tr><th scope="row" class="infobox-label">First flight</th><td class="infobox-data">1923</td></tr><tr><th scope="row" class="infobox-label">Developed from</th><td class="infobox-data"><a href="/wiki/Avia_BH-9" title="Avia BH-9">Avia BH-9</a></td></tr></tbody></table> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Avia_BH-11b.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/75/Avia_BH-11b.jpg/220px-Avia_BH-11b.jpg" decoding="async" width="220" height="122" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/75/Avia_BH-11b.jpg/330px-Avia_BH-11b.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/75/Avia_BH-11b.jpg/440px-Avia_BH-11b.jpg 2x" data-file-width="534" data-file-height="296" /></a><figcaption>Avia BH-11b</figcaption></figure> <p>The <b>Avia BH-11</b> was a two-seat <a href="/wiki/Monoplane" title="Monoplane">monoplane</a> <a href="/wiki/Aerobatics" title="Aerobatics">sport aircraft</a> designed and produced by the <a href="/wiki/Czechoslovakia" title="Czechoslovakia">Czechoslovakian</a> aircraft manufacturer <a href="/wiki/Avia_Motors" title="Avia Motors">Avia</a>. </p><p>It was designed during the early 1920s as a further development of the <a href="/wiki/Avia_BH-9" title="Avia BH-9">Avia BH-9</a>. The principal changes from its predecessor centred around the aircraft's redesigned forward <a href="/wiki/Fuselage" title="Fuselage">fuselage</a>. It performed its <a href="/wiki/Maiden_flight" title="Maiden flight">maiden flight</a> in 1923. The project quickly garnered the attention of the <a href="/wiki/Czechoslovak_Army" title="Czechoslovak Army">Czechoslovak Army</a>; the service ordered 15 aircraft, which were operated under the military designation <i>B.11</i>. They were used both as <a href="/wiki/Trainer_aircraft" title="Trainer aircraft">trainers</a> and general <a href="/wiki/Liaison_aircraft" title="Liaison aircraft">liaison aircraft</a>. The type proved itself to be quite competitive for the era, winning numerous <a href="/wiki/Air_race" class="mw-redirect" title="Air race">air races</a> during the mid 1920s. </p><p>Six years after the first flight of the BH-11, production commenced of a revised version, the <i>BH-11B Antelope</i>, that was marketed towards the civil sector instead. This replaced the original <a href="/wiki/Walter_NZ_60" title="Walter NZ 60">Walter NZ 60</a> 45 kW (60 hp) <a href="/wiki/Piston_engine" class="mw-redirect" title="Piston engine">engine</a> with a <a href="/wiki/Walter_Vega" title="Walter Vega">Walter Vega</a> of 63 kW (85 hp) and was built in small numbers. As a further development, the <i>BH-11C</i> retained the original engine but the wingspan was increased by 1.4 m (4 ft 6 in). </p><p>A BH-11A and a BH-11C are preserved at the <a href="/wiki/Prague_Aviation_Museum,_Kbely" class="mw-redirect" title="Prague Aviation Museum, Kbely">Prague Aviation Museum, Kbely</a>. </p> <div class="mw-heading mw-heading2"><h2 id="Design">Design</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Avia_BH-11&action=edit&section=1" title="Edit section: Design"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The Avia BH-11 was a twin-seat <a href="/wiki/Monoplane" title="Monoplane">monoplane</a> with a low-mounted wing and a fuselage primarily composed of <a href="/wiki/Plywood" title="Plywood">plywood</a>.<sup id="cite_ref-naca_1_1-0" class="reference"><a href="#cite_note-naca_1-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> It could accommodate up to two occupants, seated in <a href="/wiki/Tandem" title="Tandem">tandem</a>; the pilot was seated behind the passenger. A sturdy projection was present behind the pilot that protected both occupants in event of the aircraft <a href="/wiki/Capsizing" title="Capsizing">capsizing</a>.<sup id="cite_ref-naca_2_2-0" class="reference"><a href="#cite_note-naca_2-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> External visibility was relatively favourable. The primary flight controls consisted of a control stick and <a href="/wiki/Rudder" title="Rudder">rudder</a> bar; the trainer aircraft was outfitted with dual flight control which could be instantaneously disconnected if required.<sup id="cite_ref-naca_2_2-1" class="reference"><a href="#cite_note-naca_2-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> In terms of its flight performance, the aircraft was relatively stable and quick, capable of performing various <a href="/wiki/Aerobatics" title="Aerobatics">aerobatic</a> manoeuvres while also being relatively easy to fly. The aircraft was well suited to several mission types, particularly the training, liaison, and touring roles.<sup id="cite_ref-naca_1_1-1" class="reference"><a href="#cite_note-naca_1-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>The BH-11 had <a href="/wiki/Trapezoid" title="Trapezoid">trapezoidal</a>-shaped wings and were thickest at the attachment points for the <a href="/wiki/Strut" title="Strut">struts</a>.<sup id="cite_ref-naca_1_1-2" class="reference"><a href="#cite_note-naca_1-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Each wing was attached via a pair of joints to the lower longerons of the fuselage and were rigidly braced by two tubular struts against the upper pair of longerons. The forward struts were provided with threads for adjustment, which facilitated the wing to be rapidly and readily assembled and disassembled as required.<sup id="cite_ref-naca_1_1-3" class="reference"><a href="#cite_note-naca_1-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> While the aircraft was being transported on the ground, it was commonplace for the demounted wings to be suspended alongside the fuselage. The structure of the wing, which was largely composed wood, consisted of two <a href="/wiki/Spar_(aeronautics)" title="Spar (aeronautics)">spars</a>, an assortment of <a href="/wiki/Rib" title="Rib">ribs</a> and rods.<sup id="cite_ref-naca_1_1-4" class="reference"><a href="#cite_note-naca_1-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> The exterior was mostly covered by <a href="/wiki/Fabric" class="mw-redirect" title="Fabric">fabric</a>, although a plywood covering was present between the <a href="/wiki/Leading_edge" title="Leading edge">leading edge</a> and the rear spar. The wing was produced in two sizes; trainer aircraft were typically fitted with a wing that had a span of 9.72 m (31.89 ft.) while the touring aircraft had an enlarged wing with a span of 10.2 m (33.46 ft.).<sup id="cite_ref-naca_1_1-5" class="reference"><a href="#cite_note-naca_1-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> The <a href="/wiki/Aileron" title="Aileron">ailerons</a> had a framework of <a href="/wiki/Welding" title="Welding">welded</a> steel tubes and were actuated via a system of rods and levers.<sup id="cite_ref-naca_12_3-0" class="reference"><a href="#cite_note-naca_12-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p><p>The structure of the fuselage comprised four wooden <a href="/wiki/Longeron" title="Longeron">longerons</a> that were connected by transverse frames.<sup id="cite_ref-naca_2_2-2" class="reference"><a href="#cite_note-naca_2-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> Towards the rear of the fuselage, it tapered to a vertical edge. The tail unit had a wooden <a href="/wiki/Cantilever" title="Cantilever">cantilevered</a> stabilizer.<sup id="cite_ref-naca_2_2-3" class="reference"><a href="#cite_note-naca_2-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> Both the <a href="/wiki/Elevator_(aeronautics)" title="Elevator (aeronautics)">elevator</a> and rudder had tubular <a href="/wiki/Steel" title="Steel">steel</a> frames and were operated via flexible cables. A mixed construction <a href="/wiki/Landing_gear" title="Landing gear">undercarriage</a> was used; the vertical struts were composed of wood while <a href="/wiki/Streamliner" title="Streamliner">streamlined</a> steel tubes were used for the inner V-shaped struts and the rear struts alike.<sup id="cite_ref-naca_2_2-4" class="reference"><a href="#cite_note-naca_2-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> The two semi-<a href="/wiki/Axle" title="Axle">axles</a> were lodged in a compact supporting plane and were furnished with <a href="/wiki/Rubber" class="mw-redirect" title="Rubber">rubber</a> <a href="/wiki/Shock_absorber" title="Shock absorber">shock absorbers</a>. The aircraft was equipped with a tail skid that used an arrangement steel springs.<sup id="cite_ref-naca_2_2-5" class="reference"><a href="#cite_note-naca_2-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p><p>The aircraft was typically powered by a single <a href="/wiki/Walter_NZ_60" title="Walter NZ 60">Walter NZ 60</a> five-cylinder <a href="/wiki/Radial_engine" title="Radial engine">radial engine</a>, capable of generating up to 60 hp. It drove, via a direct drive arrangement, an in-house designed wooden twin-bladed fixed-pitch propeller.<sup id="cite_ref-naca_23_4-0" class="reference"><a href="#cite_note-naca_23-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> The engine was fitted within the aircraft's nose and mounted on the first full <a href="/wiki/Bulkhead_(partition)" title="Bulkhead (partition)">bulkhead</a>.<sup id="cite_ref-naca_2_2-6" class="reference"><a href="#cite_note-naca_2-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> Fuel was stored within a single tank located at the top of the fuselage while the oil tank was placed in close proximity to the engine itself. Both tanks were composed of sheet <a href="/wiki/Aluminium" title="Aluminium">aluminium</a>.<sup id="cite_ref-naca_2_2-7" class="reference"><a href="#cite_note-naca_2-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Operational_history">Operational history</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Avia_BH-11&action=edit&section=2" title="Edit section: Operational history"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>During the mid 1920s, the BH-11 performed numerous long distance flight, proving itself capable of non-stop flights of as far as 1,200 kn (746 miles) between points such as <a href="/wiki/London" title="London">London</a> and the <a href="/wiki/Black_Sea" title="Black Sea">Black Sea</a>.<sup id="cite_ref-naca_3_5-0" class="reference"><a href="#cite_note-naca_3-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> It was also promptly entered into several air races. During the Prague speed contest of 1925, the type covered the circuit of 200km (124.3 miles) while flying at around 160 kmph (99.4 mph). That same year, a BH-11 won the Cup of Italy; it repeated this feat the following year.<sup id="cite_ref-naca_3_5-1" class="reference"><a href="#cite_note-naca_3-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Specifications_(BH-11)"><span id="Specifications_.28BH-11.29"></span>Specifications (BH-11)</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Avia_BH-11&action=edit&section=3" title="Edit section: Specifications (BH-11)"><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:Avia_BH-11_3-view_NACA_Aircraft_Circular_No.40.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/c/cf/Avia_BH-11_3-view_NACA_Aircraft_Circular_No.40.jpg/220px-Avia_BH-11_3-view_NACA_Aircraft_Circular_No.40.jpg" decoding="async" width="220" height="286" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/cf/Avia_BH-11_3-view_NACA_Aircraft_Circular_No.40.jpg/330px-Avia_BH-11_3-view_NACA_Aircraft_Circular_No.40.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/cf/Avia_BH-11_3-view_NACA_Aircraft_Circular_No.40.jpg/440px-Avia_BH-11_3-view_NACA_Aircraft_Circular_No.40.jpg 2x" data-file-width="1641" data-file-height="2133" /></a><figcaption>Avia BH-11 3-view drawing from NACA Aircraft Circular No.40</figcaption></figure> <p style="font-size: 90%; margin:0;"><i>Data from</i> <i>Jane's all the World's Aircraft 1928</i>,<sup id="cite_ref-JAWA1928_6-0" class="reference"><a href="#cite_note-JAWA1928-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> <i><a href="/wiki/National_Advisory_Committee_for_Aeronautics" title="National Advisory Committee for Aeronautics">National Advisory Committee for Aeronautics</a></i><sup id="cite_ref-naca_36_7-0" class="reference"><a href="#cite_note-naca_36-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></p><p><span style="font-size:120%"><b>General characteristics</b></span> </p><ul><li><b>Crew:</b> 2</li> <li><b>Length:</b> 6.64 m (21 ft 9 in)</li> <li><b>Wingspan:</b> 9.72 m (31 ft 11 in)</li> <li><b>Height:</b> 2.53 m (8 ft 4 in)</li> <li><b>Wing area:</b> 13.6 m<sup>2</sup> (146 sq ft)</li> <li><b>Empty weight:</b> 360 kg (794 lb)</li> <li><b>Gross weight:</b> 610 kg (1,345 lb)</li> <li><b>Fuel capacity:</b> 80 kg (180 lb) fuel and oil</li> <li><b>Powerplant:</b> 1 × <a href="/wiki/Walter_NZ_60" title="Walter NZ 60">Walter NZ 60</a> five-cylinder air-cooled radial piston engine, 45 kW (60 hp)</li> <li><b>Propellers:</b> 2-bladed fixed-pitch propeller</li></ul> <p><span style="font-size:120%"><b>Performance</b></span> </p> <ul><li><b>Maximum speed:</b> 160 km/h (99 mph, 86 kn)</li> <li><b>Stall speed:</b> 75 km/h (47 mph, 40 kn)</li> <li><b>Range:</b> 650 km (400 mi, 350 nmi)</li> <li><b>Service ceiling:</b> 3,300 m (10,800 ft)</li> <li><b>Rate of climb:</b> 2.7 m/s (530 ft/min)</li> <li><b>Time to altitude:</b> 1,000 m (3,300 ft) in six minutes; 2,000 m (6,600 ft) in 18 minutes</li> <li><b>Wing loading:</b> 45 kg/m<sup>2</sup> (9.2 lb/sq ft)</li> <li><b><a href="/wiki/Power-to-weight_ratio" title="Power-to-weight ratio">Power/mass</a>:</b> 0.0733 kW/kg (0.0446 hp/lb)</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=Avia_BH-11&action=edit&section=4" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1259569809">.mw-parser-output .portalbox{padding:0;margin:0.5em 0;display:table;box-sizing:border-box;max-width:175px;list-style:none}.mw-parser-output .portalborder{border:1px solid var(--border-color-base,#a2a9b1);padding:0.1em;background:var(--background-color-neutral-subtle,#f8f9fa)}.mw-parser-output .portalbox-entry{display:table-row;font-size:85%;line-height:110%;height:1.9em;font-style:italic;font-weight:bold}.mw-parser-output .portalbox-image{display:table-cell;padding:0.2em;vertical-align:middle;text-align:center}.mw-parser-output .portalbox-link{display:table-cell;padding:0.2em 0.2em 0.2em 0.3em;vertical-align:middle}@media(min-width:720px){.mw-parser-output .portalleft{clear:left;float:left;margin:0.5em 1em 0.5em 0}.mw-parser-output .portalright{clear:right;float:right;margin:0.5em 0 0.5em 1em}}</style><ul role="navigation" aria-label="Portals" class="noprint portalbox portalborder portalright"> <li class="portalbox-entry"><span class="portalbox-image"><span class="noviewer" typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/6/68/Aviacionavion.png/28px-Aviacionavion.png" decoding="async" width="28" height="28" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/68/Aviacionavion.png/42px-Aviacionavion.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/68/Aviacionavion.png/56px-Aviacionavion.png 2x" data-file-width="1600" data-file-height="1600" /></span></span></span><span class="portalbox-link"><a href="/wiki/Portal:Aviation" title="Portal:Aviation">Aviation portal</a></span></li></ul> <p> <b>Related development</b> </p> <ul><li><a href="/wiki/Avia_BH-5" title="Avia BH-5">BH-5</a></li> <li><a href="/wiki/Avia_BH-9" title="Avia BH-9">BH-9</a></li> <li><a href="/wiki/Avia_BH-10" title="Avia BH-10">BH-10</a></li> <li><a href="/wiki/Avia_BH-12" title="Avia BH-12">BH-12</a></li></ul> <p class="mw-empty-elt"> </p> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Avia_BH-11&action=edit&section=5" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Citations">Citations</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Avia_BH-11&action=edit&section=6" title="Edit section: Citations"><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-naca_1-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-naca_1_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-naca_1_1-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-naca_1_1-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-naca_1_1-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-naca_1_1-4"><sup><i><b>e</b></i></sup></a> <a href="#cite_ref-naca_1_1-5"><sup><i><b>f</b></i></sup></a></span> <span class="reference-text">NACA 1930, p. 1.</span> </li> <li id="cite_note-naca_2-2"><span class="mw-cite-backlink">^ <a href="#cite_ref-naca_2_2-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-naca_2_2-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-naca_2_2-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-naca_2_2-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-naca_2_2-4"><sup><i><b>e</b></i></sup></a> <a href="#cite_ref-naca_2_2-5"><sup><i><b>f</b></i></sup></a> <a href="#cite_ref-naca_2_2-6"><sup><i><b>g</b></i></sup></a> <a href="#cite_ref-naca_2_2-7"><sup><i><b>h</b></i></sup></a></span> <span class="reference-text">NACA 1930, p. 2.</span> </li> <li id="cite_note-naca_12-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-naca_12_3-0">^</a></b></span> <span class="reference-text">NACA 1930, pp. 1-2.</span> </li> <li id="cite_note-naca_23-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-naca_23_4-0">^</a></b></span> <span class="reference-text">NACA 1930, pp. 2-3.</span> </li> <li id="cite_note-naca_3-5"><span class="mw-cite-backlink">^ <a href="#cite_ref-naca_3_5-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-naca_3_5-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text">NACA 1930, p. 3.</span> </li> <li id="cite_note-JAWA1928-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-JAWA1928_6-0">^</a></b></span> <span class="reference-text">Grey 1928, pp. 75c-76c.</span> </li> <li id="cite_note-naca_36-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-naca_36_7-0">^</a></b></span> <span class="reference-text">NACA 1930, pp. 3-6.</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=Avia_BH-11&action=edit&section=7" title="Edit section: Bibliography"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <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="CITEREFGrey1928" class="citation book cs1">Grey, C.G., ed. (1928). <i>Jane's all the World's Aircraft 1928</i>. London, UK: Sampson Low, Marston & company, ltd.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Jane%27s+all+the+World%27s+Aircraft+1928&rft.place=London%2C+UK&rft.pub=Sampson+Low%2C+Marston+%26+company%2C+ltd&rft.date=1928&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAvia+BH-11" class="Z3988"></span></li> <li><a rel="nofollow" class="external text" href="https://ntrs.nasa.gov/citations/19930090616">"Training airplane "Avia B.H. 11.""</a> <i><a href="/wiki/National_Advisory_Committee_for_Aeronautics" title="National Advisory Committee for Aeronautics">National Advisory Committee for Aeronautics</a></i>, 1 May 1927. NACA-AC-40, 93R19906.</li></ul> <div class="mw-heading mw-heading2"><h2 id="Further_reading">Further reading</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Avia_BH-11&action=edit&section=8" title="Edit section: Further reading"><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:Avia_BH-11" class="extiw" title="commons:Category:Avia BH-11">Avia BH-11</a></span>.</div></div> </div> <ul><li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFTaylor1989" class="citation book cs1">Taylor, Michael J. H. (1989). <i>Jane's Encyclopedia of Aviation</i>. London, UK: Studio Editions. p. 86.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Jane%27s+Encyclopedia+of+Aviation&rft.place=London%2C+UK&rft.pages=86&rft.pub=Studio+Editions&rft.date=1989&rft.aulast=Taylor&rft.aufirst=Michael+J.+H.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAvia+BH-11" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFNěmeček1968" class="citation book cs1 cs1-prop-foreign-lang-source">Němeček, Vaclav (1968). <i>Československá letadla</i> (in Czech). Prague, Czechoslovakia: Naše Vojsko.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=%C4%8Ceskoslovensk%C3%A1+letadla&rft.place=Prague%2C+Czechoslovakia&rft.pub=Na%C5%A1e+Vojsko&rft.date=1968&rft.aulast=N%C4%9Bme%C4%8Dek&rft.aufirst=Vaclav&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAvia+BH-11" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation book cs1"><i>World Aircraft Information Files</i>. London, UK: Bright Star Publishing. pp. File 889 Sheet 86.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=World+Aircraft+Information+Files&rft.place=London%2C+UK&rft.pages=File+889+Sheet+86&rft.pub=Bright+Star+Publishing&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAvia+BH-11" class="Z3988"></span></li></ul> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol 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href="/wiki/Special:EditPage/Template:Avia_aircraft" title="Special:EditPage/Template:Avia aircraft"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Avia_aircraft" style="font-size:114%;margin:0 4em"><a href="/wiki/Avia_Motors" title="Avia Motors">Avia aircraft</a></div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Avia_BH-1" title="Avia BH-1">BH-1</a></li> <li><a href="/wiki/Avia_BH-2" title="Avia BH-2">BH-2</a></li> <li><a href="/wiki/Avia_BH-3" title="Avia BH-3">BH-3</a></li> <li><a href="/wiki/Avia_BH-4" title="Avia BH-4">BH-4</a></li> <li><a href="/wiki/Avia_BH-5" title="Avia BH-5">BH-5</a></li> <li><a href="/wiki/Avia_BH-6" title="Avia BH-6">BH-6</a></li> <li><a href="/wiki/Avia_BH-7" title="Avia BH-7">BH-7</a></li> <li><a href="/wiki/Avia_BH-8" title="Avia BH-8">BH-8</a></li> <li><a href="/wiki/Avia_BH-9" title="Avia BH-9">BH-9</a></li> <li><a href="/wiki/Avia_BH-10" title="Avia BH-10">BH-10</a></li> <li><a class="mw-selflink selflink">BH-11</a></li> <li><a href="/wiki/Avia_BH-12" title="Avia BH-12">BH-12</a></li> <li><a href="/wiki/Avia_BH-16" title="Avia BH-16">BH-16</a></li> <li><a href="/wiki/Avia_BH-17" title="Avia BH-17">BH-17</a></li> <li><a href="/wiki/Avia_BH-19" title="Avia BH-19">BH-19</a></li> <li><a href="/wiki/Avia_BH-20" title="Avia BH-20">BH-20</a></li> <li><a href="/wiki/Avia_BH-21" title="Avia BH-21">BH-21</a></li> <li><a href="/wiki/Avia_BH-22" title="Avia BH-22">BH-22</a></li> <li><a href="/wiki/Avia_BH-23" title="Avia BH-23">BH-23</a></li> <li><a href="/wiki/Avia_BH-25" title="Avia BH-25">BH-25</a></li> <li><a href="/wiki/Avia_BH-26" title="Avia BH-26">BH-26</a></li> <li><a href="/wiki/Avia_BH-27" title="Avia BH-27">BH-27</a></li> <li><a href="/wiki/Avia_BH-28" title="Avia BH-28">BH-28</a></li> <li><a href="/wiki/Avia_BH-29" title="Avia BH-29">BH-29</a></li> <li><a href="/wiki/Avia_BH-33" title="Avia BH-33">BH-33</a></li> <li><a href="/wiki/Ilyushin_Il-10" title="Ilyushin Il-10">B-33</a></li> <li><a href="/wiki/Avia_B-34" title="Avia B-34">B-34</a></li> <li><a href="/wiki/Avia_B.35" title="Avia B.35">B-35</a></li> <li><a href="/wiki/Fokker_F.IX" title="Fokker F.IX">B-39</a></li> <li><a href="/wiki/Tupolev_SB" title="Tupolev SB">B-71</a></li> <li><a href="/wiki/Avia_B.122" title="Avia B.122">B-122</a></li> <li><a href="/wiki/Avia_B-34" title="Avia B-34">B-234</a></li> <li><a href="/wiki/Avia_B-135" title="Avia B-135">B-135</a></li> <li><a href="/wiki/Avia_B-158" title="Avia B-158">B-158</a></li> <li><a href="/wiki/Avia_B-534" title="Avia B-534">B-534</a></li> <li><a href="/wiki/Messerschmitt_Me_262" title="Messerschmitt Me 262">S-92</a></li> <li><a href="/wiki/Avia_S-199" title="Avia S-199">S-99</a></li> <li><a href="/wiki/Avia_S-199" title="Avia S-199">S-199</a></li> <li><a href="/wiki/Ilyushin_Il-14" title="Ilyushin Il-14">Avia 14</a></li> <li><a href="/wiki/Avia_51" title="Avia 51">Avia 51</a></li> <li><a href="/wiki/Avia_57" title="Avia 57">Avia 57</a></li> <li><a href="/wiki/Avia_156" title="Avia 156">Avia 156</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=Avia_BH-11&oldid=1245614554">https://en.wikipedia.org/w/index.php?title=Avia_BH-11&oldid=1245614554</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:1920s_Czechoslovak_sport_aircraft" title="Category:1920s Czechoslovak sport aircraft">1920s Czechoslovak sport aircraft</a></li><li><a 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