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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 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#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">HSL (Bell Model 61)</th></tr><tr><td colspan="2" class="infobox-full-data"><span typeof="mw:File"><a href="/wiki/File:U.S._Navy_HSL-1_61.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/6e/U.S._Navy_HSL-1_61.jpg/300px-U.S._Navy_HSL-1_61.jpg" decoding="async" width="300" height="200" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/6e/U.S._Navy_HSL-1_61.jpg/450px-U.S._Navy_HSL-1_61.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/6e/U.S._Navy_HSL-1_61.jpg/600px-U.S._Navy_HSL-1_61.jpg 2x" data-file-width="750" data-file-height="499" /></a></span> <div class="ib-aircraft-caption">The U.S. Navy Bell XHSL-1 prototype in flight.</div></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">Tandem-rotor ASW helicopter</td></tr><tr><th scope="row" class="infobox-label">National origin</th><td class="infobox-data">United States</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/Bell_Helicopter" class="mw-redirect" title="Bell Helicopter">Bell Helicopter</a></td></tr><tr><th scope="row" class="infobox-label">Status</th><td class="infobox-data">Retired</td></tr><tr><th scope="row" class="infobox-label">Primary user</th><td class="infobox-data"><a href="/wiki/United_States_Navy" title="United States Navy">United States Navy</a></td></tr><tr><th scope="row" class="infobox-label">Number built</th><td class="infobox-data">53 including one static <a href="/wiki/Test_article_(aerospace)" title="Test article (aerospace)">test article</a></td></tr><tr><th colspan="2" class="infobox-header">History</th></tr><tr><th scope="row" class="infobox-label">Introduction date</th><td class="infobox-data">1957</td></tr><tr><th scope="row" class="infobox-label">First flight</th><td class="infobox-data">3 March 1953</td></tr><tr><th scope="row" class="infobox-label">Retired</th><td class="infobox-data">1960</td></tr></tbody></table> <p>The <b>Bell HSL</b> (<b>Model 61</b>) was an American 1950s <a href="/wiki/Anti-submarine_warfare" title="Anti-submarine warfare">anti-submarine warfare</a> (ASW) helicopter built by the <a href="/wiki/Bell_Helicopter" class="mw-redirect" title="Bell Helicopter">Bell Helicopter</a> company, the only <a href="/wiki/Tandem_rotors" class="mw-redirect" title="Tandem rotors">tandem rotor</a> type designed by Bell. It had its first flight in 1953 and entered service with the U.S. Navy in 1957. Over 50 models were produced but it was out of service by 1960 - such was the pace of helicopter development in this period. </p><p>The helicopter had two main rotors at either end of the fuselage tube, linked by a transmission but powered by a single <a href="/wiki/Pratt_%26_Whitney_R-2800" class="mw-redirect" title="Pratt & Whitney R-2800">Pratt & Whitney R-2800</a>-50m, which was an 18-cylinder air-cooled radial engine. The front rotor shaft was actually slightly ahead of pilots in the front cockpit. </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=Bell_HSL&action=edit&section=1" title="Edit section: Design and development"><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:Bell_XHSL-1_prototype_in_flight_c1953.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/64/Bell_XHSL-1_prototype_in_flight_c1953.jpg/220px-Bell_XHSL-1_prototype_in_flight_c1953.jpg" decoding="async" width="220" height="136" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/64/Bell_XHSL-1_prototype_in_flight_c1953.jpg/330px-Bell_XHSL-1_prototype_in_flight_c1953.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/64/Bell_XHSL-1_prototype_in_flight_c1953.jpg/440px-Bell_XHSL-1_prototype_in_flight_c1953.jpg 2x" data-file-width="842" data-file-height="522" /></a><figcaption>XHSL-1 prototype on a test flight</figcaption></figure> <p>The prototype Bell Model 61 first flew on 3 March 1953; it had been designed to meet a <a href="/wiki/United_States_Navy" title="United States Navy">United States Navy</a> requirement for an anti-submarine warfare helicopter. In June <a href="/wiki/1950_in_aviation" title="1950 in aviation">1950</a>, the Model 61 was announced as the winner of the competition, and three XHSL-1 evaluation aircraft were ordered. The Model 61 had a rectangular-section fuselage structure and four-leg, six-wheel landing gear. It was powered by a <a href="/wiki/Pratt_%26_Whitney_R-2800" class="mw-redirect" title="Pratt & Whitney R-2800">Pratt & Whitney R-2800</a> <a href="/wiki/Radial_engine" title="Radial engine">radial engine</a> mounted in the aft fuselage. Crew included two pilots and two sonar operators.<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> </p><p>Because of the urgency of the requirement, low-rate production was ordered almost immediately after Bell received a contract for three XHSL-1s. The Navy eventually contracted for at least 160 production aircraft, including 18 intended for the British <a href="/wiki/Royal_Navy" title="Royal Navy">Royal Navy</a>. Bureau Numbers were assigned for a total of 234. Because of development problems that resulted in poor schedule performance to the contract, only 50 were built. Although all were delivered, after service test and acceptance only a handful were used, for the development of airborne mine sweeping. The rest were delivered directly into storage and were subsequently struck off. </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=Bell_HSL&action=edit&section=2" title="Edit section: Operational history"><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:Bell_HSL-1_hovering.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Bell_HSL-1_hovering.jpg/220px-Bell_HSL-1_hovering.jpg" decoding="async" width="220" height="165" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Bell_HSL-1_hovering.jpg/330px-Bell_HSL-1_hovering.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Bell_HSL-1_hovering.jpg/440px-Bell_HSL-1_hovering.jpg 2x" data-file-width="655" data-file-height="491" /></a><figcaption>HSL-1 in a hover over water</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Bell_HSL-1_towing_tests_1956.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d0/Bell_HSL-1_towing_tests_1956.jpg/220px-Bell_HSL-1_towing_tests_1956.jpg" decoding="async" width="220" height="244" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d0/Bell_HSL-1_towing_tests_1956.jpg/330px-Bell_HSL-1_towing_tests_1956.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d0/Bell_HSL-1_towing_tests_1956.jpg/440px-Bell_HSL-1_towing_tests_1956.jpg 2x" data-file-width="757" data-file-height="840" /></a><figcaption>HSL-1 towing test</figcaption></figure> <p>The HSLs were not used operationally. Approximately seven were assigned to the U.S. Naval Air Mine Defense Unit at Panama City, Florida, for the development of airborne mine-sweeping, the first arriving in September 1956 and the last being struck off in early 1960. </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=Bell_HSL&action=edit&section=3" title="Edit section: Variants"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <dl><dt>XHSL-1</dt> <dd>two experimental flight test and one static test article</dd> <dt>HSL-1</dt> <dd>production version, 50 built.</dd> <dt>Bell Model 61</dt> <dd>Company designation for the HSL</dd> <dt>Bell D-116</dt> <dd>A proposed civil variant of the Model 61, not proceeded with.</dd> <dt>Bell D-216</dt> <dd>A proposed variant of the HSL, not proceeded with.</dd> <dt>Bell D-238</dt> <dd>A proposed variant of the HSL, not proceeded with.</dd></dl> <div class="mw-heading mw-heading2"><h2 id="Operators">Operators</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Bell_HSL&action=edit&section=4" title="Edit section: Operators"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <dl><dt><span class="flagicon"><span class="mw-image-border" typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5d/Flag_of_the_United_States_%2823px%29.png/23px-Flag_of_the_United_States_%2823px%29.png" decoding="async" width="23" height="13" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5d/Flag_of_the_United_States_%2823px%29.png/35px-Flag_of_the_United_States_%2823px%29.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5d/Flag_of_the_United_States_%2823px%29.png/46px-Flag_of_the_United_States_%2823px%29.png 2x" data-file-width="69" data-file-height="39" /></span></span> </span><a href="/wiki/United_States" title="United States">United States</a></dt></dl> <ul><li><a href="/wiki/United_States_Navy" title="United States Navy">United States Navy</a><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></li></ul> <div class="mw-heading mw-heading2"><h2 id="Specifications_(HSL-1)"><span id="Specifications_.28HSL-1.29"></span>Specifications (HSL-1)</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Bell_HSL&action=edit&section=5" title="Edit section: Specifications (HSL-1)"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-halign-right" typeof="mw:File"><a href="/wiki/File:Bell_HSL-1_3-view_line_drawing.png" class="mw-file-description" title="3-view line drawing of the Bell HSL-1"><img alt="3-view line drawing of the Bell HSL-1" src="//upload.wikimedia.org/wikipedia/commons/thumb/3/39/Bell_HSL-1_3-view_line_drawing.png/300px-Bell_HSL-1_3-view_line_drawing.png" decoding="async" width="300" height="665" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/39/Bell_HSL-1_3-view_line_drawing.png/450px-Bell_HSL-1_3-view_line_drawing.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/39/Bell_HSL-1_3-view_line_drawing.png/600px-Bell_HSL-1_3-view_line_drawing.png 2x" data-file-width="916" data-file-height="2029" /></a><figcaption>3-view line drawing of the Bell HSL-1</figcaption></figure> <p style="font-size: 90%; margin:0;"><i>Data from</i> NAVAER-1519B - Bell HSL-1 :Characteristic Summary<sup id="cite_ref-CS_3-0" class="reference"><a href="#cite_note-CS-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> Bell Aircraft since 1935<sup id="cite_ref-Pelletier_4-0" class="reference"><a href="#cite_note-Pelletier-4"><span class="cite-bracket">[</span>4<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> 4 (search mission), 3 (attack mission)</li> <li><b>Capacity:</b> Hoist capacity 800 lb (363 kg)</li> <li><b>Length:</b> 39 ft 11 in (12.17 m) (fuselage only)</li> <li><b>Width:</b> 11 ft 6 in (3.5 m) (rotors folded)</li> <li><b>Height:</b> 14 ft 6 in (4.42 m)</li> <li><b>Empty weight:</b> 13,073 lb (5,930 kg)</li> <li><b>Gross weight:</b> 16,958 lb (7,692 kg) (search mission)</li></ul> <dl><dd><dl><dd><dl><dd><dl><dd>16,853 lb (7,644 kg) (attack mission)</dd></dl></dd></dl></dd></dl></dd></dl> <ul><li><b>Max takeoff weight:</b> 26,500 lb (12,020 kg)</li> <li><b>Fuel capacity:</b> 450 US gal (375 imp gal; 1,703 L) maximum</li> <li><b>Powerplant:</b> 1 × <a href="/wiki/Pratt_%26_Whitney_R-2800" class="mw-redirect" title="Pratt & Whitney R-2800">Pratt & Whitney R-2800</a>-50 18-cyl. two-row air-cooled radial piston engine, 2,100 hp (1,600 kW) for sea level take-off at 2,600 rpm</li></ul> <dl><dd><dl><dd><dl><dd><dl><dd>normal power at sea level, 1,900 hp (1,417 kW) at 2,400 rpm</dd></dl></dd></dl></dd></dl></dd></dl> <ul><li><b>Main rotor diameter:</b> 2 × 51 ft 6 in (15.70 m)</li> <li><b>Main rotor area:</b> 3,840 sq ft (357 m<sup>2</sup>) <br /></li> <li><b>Blade section:</b> <a href="/wiki/NACA_airfoil" title="NACA airfoil">NACA 0015</a></li></ul> <p><span style="font-size:120%"><b>Performance</b></span> </p> <ul><li><b>Maximum speed:</b> 124 mph (200 km/h, 108 kn) (search mission)</li> <li><b>Cruise speed:</b> 96 mph (154 km/h, 83 kn) at 1,500 ft (457 m)</li> <li><b>Range:</b> 350 mi (560 km, 300 nmi)</li> <li><b>Combat range:</b> 140 mi (230 km, 120 nmi)</li> <li><b>Endurance:</b> 3 hours 30 minutes loiter on search mission</li> <li><b>Service ceiling:</b> 14,400 ft (4,400 m) at take-off weight with normal power</li> <li><b>Absolute hover ceiling OGE:</b> 10,750 ft (3,277 m)</li> <li><b>Rate of climb:</b> 1,475 ft/min (7.49 m/s) normal power, sea level, at take-off weight in forward flight</li></ul> <dl><dd><dl><dd><dl><dd><dl><dd>1,200 ft/min (6.1 m/s) in vertical flight with take-off power, sea level, at take-off weight in forward flight</dd></dl></dd></dl></dd></dl></dd></dl> <p><span style="font-size:120%"><b>Armament</b></span><br /> </p> <ul><li><b>Bombs:</b> 2x <a href="/wiki/Mark_43_torpedo" title="Mark 43 torpedo">Mark 43 torpedoes</a></li></ul> <p><span style="font-size:120%"><b>Avionics</b></span><br /> </p> <ul><li>Dipping Sonar</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=Bell_HSL&action=edit&section=6" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p> <b>Aircraft of comparable role, configuration, and era</b> </p> <ul><li><a href="/wiki/Piasecki_HUP_Retriever" title="Piasecki HUP Retriever">Piasecki HUP Retriever</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=Bell_HSL&action=edit&section=7" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <dl><dt>Notes</dt></dl> <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-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</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="CITEREFHearst_Magazines1953" class="citation magazine cs1">Hearst Magazines (August 1953). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=8NsDAAAAMBAJ&pg=PA121">"Navy's Most Powerful Helicopter to Hunt Submarines"</a>. <i>Popular Mechanics</i>. Hearst Magazines. p. 121.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Popular+Mechanics&rft.atitle=Navy%27s+Most+Powerful+Helicopter+to+Hunt+Submarines&rft.pages=121&rft.date=1953-08&rft.au=Hearst+Magazines&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3D8NsDAAAAMBAJ%26pg%3DPA121&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABell+HSL" class="Z3988"></span></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"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.flightglobal.com/pdfarchive/view/1956/1956%20-%201366.html">"Flight 1956 pg.518"</a>. flightglobal.com<span class="reference-accessdate">. Retrieved <span class="nowrap">18 October</span> 2014</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Flight+1956+pg.518&rft.pub=flightglobal.com&rft_id=http%3A%2F%2Fwww.flightglobal.com%2Fpdfarchive%2Fview%2F1956%2F1956%2520-%25201366.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABell+HSL" class="Z3988"></span></span> </li> <li id="cite_note-CS-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-CS_3-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation book cs1"><i>NAVAER-1519B - Bell HSL-1 :Characteristic Summary</i> (Revision 10-51 ed.). Navaer. 30 August 1958.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=NAVAER-1519B+-+Bell+HSL-1+%3ACharacteristic+Summary&rft.edition=Revision+10-51&rft.pub=Navaer&rft.date=1958-08-30&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABell+HSL" class="Z3988"></span></span> </li> <li id="cite_note-Pelletier-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-Pelletier_4-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFPelletier1992" class="citation book cs1">Pelletier, Alain J. (1992). <i>Bell Aircraft since 1935</i> (1st ed.). London: Putnam & Company Ltd. pp. 100–102. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/1-55750-056--8" title="Special:BookSources/1-55750-056--8"><bdi>1-55750-056--8</bdi></a>. <a href="/wiki/OCLC_(identifier)" class="mw-redirect" title="OCLC (identifier)">OCLC</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/oclc/25625769">25625769</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Bell+Aircraft+since+1935&rft.place=London&rft.pages=100-102&rft.edition=1st&rft.pub=Putnam+%26+Company+Ltd.&rft.date=1992&rft_id=info%3Aoclcnum%2F25625769&rft.isbn=1-55750-056--8&rft.aulast=Pelletier&rft.aufirst=Alain+J.&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABell+HSL" class="Z3988"></span></span> </li> </ol></div></div> <dl><dt>Bibliography</dt></dl> <style data-mw-deduplicate="TemplateStyles:r1239549316">.mw-parser-output .refbegin{margin-bottom:0.5em}.mw-parser-output .refbegin-hanging-indents>ul{margin-left:0}.mw-parser-output .refbegin-hanging-indents>ul>li{margin-left:0;padding-left:3.2em;text-indent:-3.2em}.mw-parser-output .refbegin-hanging-indents ul,.mw-parser-output .refbegin-hanging-indents ul li{list-style:none}@media(max-width:720px){.mw-parser-output .refbegin-hanging-indents>ul>li{padding-left:1.6em;text-indent:-1.6em}}.mw-parser-output .refbegin-columns{margin-top:0.3em}.mw-parser-output .refbegin-columns ul{margin-top:0}.mw-parser-output .refbegin-columns li{page-break-inside:avoid;break-inside:avoid-column}@media screen{.mw-parser-output .refbegin{font-size:90%}}</style><div class="refbegin" style=""> <ul><li>Andrade, John M. <i>U.S.Military Aircraft Designation and Serials since 1909</i>. Leicester, UK: Midland Counties Publications, 1979. <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/0-904597-22-9" title="Special:BookSources/0-904597-22-9">0-904597-22-9</a>.</li> <li><i>The Illustrated Encyclopedia of Aircraft (Part Work 1982–1985)</i>. London, Orbis Publishing, 1985.</li> <li>Thomason, Tommy H. <i>The Forgotten Bell HSL</i>. Simi Valley, CA: Ginter Books, 2005. <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/978-0-942612-70-7" title="Special:BookSources/978-0-942612-70-7">978-0-942612-70-7</a></li></ul> </div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Bell_HSL&action=edit&section=8" 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 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abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Bell_Aircraft" title="Template:Bell Aircraft"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Bell_Aircraft" title="Template talk:Bell Aircraft"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Bell_Aircraft" title="Special:EditPage/Template:Bell Aircraft"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Bell_Aircraft_and_Bell_Helicopter/Bell_Textron_aircraft" style="font-size:114%;margin:0 4em"><a href="/wiki/Bell_Aircraft" title="Bell Aircraft">Bell Aircraft</a> and <a href="/wiki/Bell_Textron" title="Bell Textron">Bell Helicopter/Bell Textron</a> aircraft</div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Manufacturer<br />designations</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Bell_YFM-1_Airacuda" title="Bell YFM-1 Airacuda">1</a></li> <li><a href="/wiki/Consolidated_P-30" title="Consolidated P-30">2</a></li> <li><a href="/wiki/Bell_P-39_Airacobra" title="Bell P-39 Airacobra">3</a></li> <li><a href="/wiki/Bell_P-39_Airacobra" title="Bell P-39 Airacobra">4</a></li> <li><a href="/wiki/Bell_XFL_Airabonita" title="Bell XFL Airabonita">5</a></li> <li><a href="/wiki/Bell_P-39_Airacobra" title="Bell P-39 Airacobra">6</a></li> <li><a href="/wiki/Bell_YFM-1_Airacuda" title="Bell YFM-1 Airacuda">7</a></li> <li><a href="/wiki/Bell_YFM-1_Airacuda" title="Bell YFM-1 Airacuda">8</a></li> <li><a href="/wiki/Bell_YFM-1_Airacuda" title="Bell YFM-1 Airacuda">9</a></li> <li><a href="/wiki/Bell_YFM-1_Airacuda" title="Bell YFM-1 Airacuda">10</a></li> <li><a href="/wiki/Bell_P-39_Airacobra" title="Bell P-39 Airacobra">11</a></li> <li><a href="/wiki/Bell_P-39_Airacobra" title="Bell P-39 Airacobra">12</a></li> <li><a href="/wiki/Bell_P-39_Airacobra" title="Bell P-39 Airacobra">13</a></li> <li><a href="/wiki/Bell_P-39_Airacobra" title="Bell P-39 Airacobra">14</a></li> <li><a href="/wiki/Bell_P-39_Airacobra" title="Bell P-39 Airacobra">15</a></li> <li><a href="/wiki/Bell_XP-52" title="Bell XP-52">16</a></li> <li><a href="/wiki/Bell_YFM-1_Airacuda" title="Bell YFM-1 Airacuda">17</a></li> <li><a href="/w/index.php?title=Bell_Model_18&action=edit&redlink=1" class="new" title="Bell Model 18 (page does not exist)">18</a></li> <li><a href="/wiki/Bell_XP-52" title="Bell XP-52">19</a></li> <li><a href="/wiki/Bell_XP-52" title="Bell XP-52">20</a></li> <li><a href="/wiki/Bell_P-39_Airacobra" title="Bell P-39 Airacobra">21</a></li> <li><a href="/wiki/Bell_XP-52" title="Bell XP-52">22</a></li> <li><a href="/wiki/Bell_P-39_Airacobra" title="Bell P-39 Airacobra">23</a></li> <li><a href="/wiki/Bell_P-63_Kingcobra" title="Bell P-63 Kingcobra">24</a></li> <li><a href="/wiki/Bell_P-63_Kingcobra" title="Bell P-63 Kingcobra">25</a></li> <li><a href="/wiki/Bell_P-39_Airacobra" title="Bell P-39 Airacobra">26</a></li> <li><a href="/wiki/Bell_P-59_Airacomet" title="Bell P-59 Airacomet">27</a></li> <li><a href="/wiki/Bell_P-76" title="Bell P-76">28</a></li> <li><a href="/wiki/Bell_P-59_Airacomet" title="Bell P-59 Airacomet">29</a></li> <li><a href="/wiki/Bell_30" title="Bell 30">30</a></li> <li><span class="tmp-color" style="color:grey">31</span><sup><small>1</small></sup></li> <li><a href="/wiki/Bell_XP-77" title="Bell XP-77">32</a></li> <li><a href="/wiki/Bell_P-63_Kingcobra" title="Bell P-63 Kingcobra">33</a></li> <li><a href="/wiki/Bell_P-63_Kingcobra" title="Bell P-63 Kingcobra">34</a></li> <li><a href="/wiki/Bell_XP-77" title="Bell XP-77">35</a></li> <li><a href="/w/index.php?title=Bell_36&action=edit&redlink=1" class="new" title="Bell 36 (page does not exist)">36</a></li> <li><a href="/wiki/Bell_P-63_Kingcobra" title="Bell P-63 Kingcobra">37</a></li> <li><a href="/wiki/Bell_P-63_Kingcobra" title="Bell P-63 Kingcobra">38</a></li> <li><a href="/wiki/Bell_P-39_Airacobra" title="Bell P-39 Airacobra">39 (I)</a></li> <li><a href="/wiki/Bell_L-39" title="Bell L-39">39 (II)</a></li> <li><a href="/wiki/Bell_XP-83" title="Bell XP-83">40</a></li> <li><a href="/wiki/Bell_P-63_Kingcobra" title="Bell P-63 Kingcobra">41</a></li> <li><a href="/wiki/Bell_H-12" title="Bell H-12">42</a></li> <li><a href="/wiki/Bell_P-63_Kingcobra" title="Bell P-63 Kingcobra">43</a></li> <li><a href="/wiki/Bell_X-1" title="Bell X-1">44</a></li> <li><a href="/wiki/Bell_P-63_Kingcobra" title="Bell P-63 Kingcobra">45</a></li> <li><a href="/w/index.php?title=Bell_46&action=edit&redlink=1" class="new" title="Bell 46 (page does not exist)">46</a></li> <li><a href="/wiki/Bell_47" title="Bell 47">47</a> <ul><li><a href="/wiki/Bell_47J_Ranger" title="Bell 47J Ranger">J</a></li></ul></li> <li><a href="/wiki/Bell_H-12" title="Bell H-12">48</a></li> <li><a href="/w/index.php?title=Bell_49&action=edit&redlink=1" class="new" title="Bell 49 (page does not exist)">49</a></li> <li><a href="/w/index.php?title=Bell_50&action=edit&redlink=1" class="new" title="Bell 50 (page does not exist)">50</a></li> <li><a href="/w/index.php?title=Bell_51&action=edit&redlink=1" class="new" title="Bell 51 (page does not exist)">51</a></li> <li><a href="/wiki/Bell_X-2" title="Bell X-2">52</a></li> <li><a href="/wiki/Bell_P-63_Kingcobra" title="Bell P-63 Kingcobra">53</a></li> <li><a href="/wiki/Bell_XH-15" title="Bell XH-15">54</a></li> <li><a href="/wiki/AAM-N-5_Meteor" title="AAM-N-5 Meteor">55</a></li> <li><a href="/wiki/GAM-63_RASCAL" title="GAM-63 RASCAL">56</a></li> <li><a href="/wiki/Mark_13_torpedo" title="Mark 13 torpedo">57</a></li> <li><a href="/wiki/Bell_X-1" title="Bell X-1">58</a></li> <li><a href="/wiki/Bell_X-9_Shrike" title="Bell X-9 Shrike">59</a></li> <li><a href="/wiki/Bell_X-5" title="Bell X-5">60</a></li> <li><a class="mw-selflink selflink">61</a></li> <li><a href="/wiki/GAM-63_RASCAL" title="GAM-63 RASCAL">62</a></li> <li><a href="/w/index.php?title=Bell_63&action=edit&redlink=1" class="new" title="Bell 63 (page does not exist)">63</a></li> <li><a href="/wiki/AAM-N-5_Meteor" title="AAM-N-5 Meteor">64</a></li> <li><a href="/wiki/Bell_Model_65" title="Bell Model 65">65</a></li> <li><a href="/wiki/GAM-63_RASCAL" title="GAM-63 RASCAL">66</a></li> <li><a href="/wiki/Bell_X-16" title="Bell X-16">67</a></li> <li><a href="/wiki/Bell_X-14" title="Bell X-14">68</a></li> <li><a href="/w/index.php?title=Bell_69&action=edit&redlink=1" class="new" title="Bell 69 (page does not exist)">69</a></li> <li><span class="tmp-color" style="color:grey">70–100</span><sup><small>1</small></sup></li> <li><a href="/wiki/Boeing_B-50_Superfortress" title="Boeing B-50 Superfortress">101</a></li> <li><a href="/wiki/GAM-63_RASCAL" title="GAM-63 RASCAL">102</a></li> <li><a href="/wiki/GAM-63_RASCAL" title="GAM-63 RASCAL">103</a></li> <li><a href="/w/index.php?title=Bell_104&action=edit&redlink=1" class="new" title="Bell 104 (page does not exist)">104</a></li> <li><a href="/wiki/GAM-63_RASCAL" title="GAM-63 RASCAL">105</a></li> <li><a href="/w/index.php?title=Bell_106&action=edit&redlink=1" class="new" title="Bell 106 (page does not exist)">106</a></li> <li><span class="tmp-color" style="color:grey">107</span><sup><small>1</small></sup></li> <li><a href="/wiki/Convair_B-36_Peacemaker" title="Convair B-36 Peacemaker">108</a></li> <li><a href="/w/index.php?title=Bell_109&action=edit&redlink=1" class="new" title="Bell 109 (page does not exist)">109</a></li> <li><a href="/wiki/GAM-63_RASCAL" title="GAM-63 RASCAL">110</a></li> <li><a href="/wiki/Douglas_F3D_Skyknight" title="Douglas F3D Skyknight">111</a></li> <li><a href="/w/index.php?title=Bell_112&action=edit&redlink=1" class="new" title="Bell 112 (page does not exist)">112</a></li> <li><a href="/wiki/GAM-63_RASCAL" title="GAM-63 RASCAL">113</a></li> <li><a href="/w/index.php?title=Bell_114&action=edit&redlink=1" class="new" title="Bell 114 (page does not exist)">114</a></li> <li><a href="/w/index.php?title=Bell_115&action=edit&redlink=1" class="new" title="Bell 115 (page does not exist)">115</a></li> <li><a href="/wiki/SSM-N-8_Regulus" title="SSM-N-8 Regulus">116</a></li> <li><a href="/wiki/Convair_B-58_Hustler" title="Convair B-58 Hustler">117</a></li> <li><a href="/wiki/GAM-63_RASCAL" title="GAM-63 RASCAL">118</a></li> <li><a href="/w/index.php?title=Bell_119&action=edit&redlink=1" class="new" title="Bell 119 (page does not exist)">119</a></li> <li><a href="/w/index.php?title=Bell_120&action=edit&redlink=1" class="new" title="Bell 120 (page does not exist)">120</a></li> <li><a href="/wiki/McDonnell_F-101_Voodoo" title="McDonnell F-101 Voodoo">121</a></li> <li><a href="/w/index.php?title=Bell_122&action=edit&redlink=1" class="new" title="Bell 122 (page does not exist)">122</a></li> <li><a href="/w/index.php?title=Bell_123&action=edit&redlink=1" class="new" title="Bell 123 (page does not exist)">123</a></li> <li><a href="/w/index.php?title=Bell_124&action=edit&redlink=1" class="new" title="Bell 124 (page does not exist)">124</a></li> <li><a href="/w/index.php?title=Bell_125&action=edit&redlink=1" class="new" title="Bell 125 (page does not exist)">125</a></li> <li><a href="/w/index.php?title=Bell_126&action=edit&redlink=1" class="new" title="Bell 126 (page does not exist)">126</a></li> <li><a href="/w/index.php?title=Bell_127&action=edit&redlink=1" class="new" title="Bell 127 (page does not exist)">127</a></li> <li><a href="/w/index.php?title=Bell_128&action=edit&redlink=1" class="new" title="Bell 128 (page does not exist)">128</a></li> <li><a href="/w/index.php?title=Bell_129&action=edit&redlink=1" class="new" title="Bell 129 (page does not exist)">129</a></li> <li><a href="/w/index.php?title=Bell_130&action=edit&redlink=1" class="new" title="Bell 130 (page does not exist)">130</a></li> <li><span class="tmp-color" style="color:grey">131–199</span><sup><small>1</small></sup></li> <li><a href="/wiki/Bell_XV-3" title="Bell XV-3">200</a></li> <li><a href="/wiki/Bell_201" title="Bell 201">201</a></li> <li><span class="tmp-color" style="color:grey">202</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">203</span><sup><small>1</small></sup></li> <li><a href="/wiki/Bell_204/205" title="Bell 204/205">204</a></li> <li><a href="/wiki/Bell_204/205" title="Bell 204/205">205</a></li> <li><a href="/wiki/Bell_206" title="Bell 206">206</a></li> <li><a href="/wiki/Bell_207_Sioux_Scout" title="Bell 207 Sioux Scout">207</a></li> <li><a href="/wiki/Bell_204/205" title="Bell 204/205">208</a></li> <li><a href="/wiki/Bell_AH-1_Cobra" title="Bell AH-1 Cobra">209</a></li> <li><a href="/wiki/Bell_204/205" title="Bell 204/205">210</a></li> <li><a href="/wiki/Bell_UH-1_Iroquois" title="Bell UH-1 Iroquois">211</a></li> <li><a href="/wiki/Bell_212" title="Bell 212">212</a></li> <li><span class="tmp-color" style="color:grey">213</span><sup><small>1</small></sup></li> <li><a href="/wiki/Bell_214" title="Bell 214">214</a> <ul><li><a href="/wiki/Bell_214ST" title="Bell 214ST">214ST</a></li></ul></li> <li><span class="tmp-color" style="color:grey">215</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=Bell_216&action=edit&redlink=1" class="new" title="Bell 216 (page does not exist)">216</a></li> <li><span class="tmp-color" style="color:grey">217</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">218</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">219</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">220</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">221</span><sup><small>1</small></sup></li> <li><a href="/wiki/Bell_222/230" title="Bell 222/230">222</a></li> <li><span class="tmp-color" style="color:grey">223–229</span><sup><small>1</small></sup></li> <li><a href="/wiki/Bell_222/230" title="Bell 222/230">230</a></li> <li><span class="tmp-color" style="color:grey">231–248</span><sup><small>1</small></sup></li> <li><a href="/wiki/Bell_AH-1_Cobra" title="Bell AH-1 Cobra">249</a></li> <li><span class="tmp-color" style="color:grey">250–300</span><sup><small>1</small></sup></li> <li><a href="/wiki/Bell_XV-15" title="Bell XV-15">301</a></li> <li><span class="tmp-color" style="color:grey">302–308</span><sup><small>1</small></sup></li> <li><a href="/wiki/Bell_309_KingCobra" title="Bell 309 KingCobra">309</a></li> <li><span class="tmp-color" style="color:grey">310–359</span><sup><small>1</small></sup></li> <li><a href="/wiki/Bell_360_Invictus" title="Bell 360 Invictus">360</a></li> <li><span class="tmp-color" style="color:grey">361–399</span><sup><small>1</small></sup></li> <li><a href="/wiki/Bell_400_TwinRanger" title="Bell 400 TwinRanger">400</a></li> <li><span class="tmp-color" style="color:grey">401–405</span><sup><small>1</small></sup></li> <li><a href="/wiki/Bell_OH-58_Kiowa" title="Bell OH-58 Kiowa">406</a></li> <li><a href="/wiki/Bell_407" title="Bell 407">407</a></li> <li><span class="tmp-color" style="color:grey">408</span><sup><small>1</small></sup></li> <li><a href="/wiki/Bell_YAH-63" title="Bell YAH-63">409</a></li> <li><span class="tmp-color" style="color:grey">410</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">411</span><sup><small>1</small></sup></li> <li><a href="/wiki/Bell_412" title="Bell 412">412</a></li> <li><span class="tmp-color" style="color:grey">413</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">414</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">415</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">416</span><sup><small>1</small></sup></li> <li><a href="/wiki/Bell_407" title="Bell 407">417</a></li> <li><span class="tmp-color" style="color:grey">418–426</span><sup><small>1</small></sup></li> <li><a href="/wiki/Bell_427" title="Bell 427">427</a></li> <li><span class="tmp-color" style="color:grey">428</span><sup><small>1</small></sup></li> <li><a href="/wiki/Bell_429_GlobalRanger" title="Bell 429 GlobalRanger">429</a></li> <li><a href="/wiki/Bell_430" title="Bell 430">430</a></li> <li><span class="tmp-color" style="color:grey">431–439</span><sup><small>1</small></sup></li> <li><a href="/wiki/Bell_400_TwinRanger" title="Bell 400 TwinRanger">440</a></li> <li><span class="tmp-color" style="color:grey">441</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">442</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">443</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">444</span><sup><small>1</small></sup></li> <li><a href="/wiki/Bell_ARH-70_Arapaho" title="Bell ARH-70 Arapaho">445</a></li> <li><span class="tmp-color" style="color:grey">446</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">447</span><sup><small>1</small></sup></li> <li><span class="tmp-color" style="color:grey">448</span><sup><small>1</small></sup></li> <li><a href="/wiki/Bell_AH-1Z_Viper" title="Bell AH-1Z Viper">449</a></li> <li><span class="tmp-color" style="color:grey">550–504</span><sup><small>1</small></sup></li> <li><a href="/wiki/Bell_505_Jet_Ranger_X" title="Bell 505 Jet Ranger X">505</a></li> <li><span class="tmp-color" style="color:grey">506–524</span><sup><small>1</small></sup></li> <li><a href="/wiki/Bell_525_Relentless" title="Bell 525 Relentless">525</a></li> <li><span class="tmp-color" style="color:grey">526–532</span><sup><small>1</small></sup></li> <li><a href="/wiki/Bell_533" title="Bell 533">533</a></li> <li><span class="tmp-color" style="color:grey">534–539</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=Bell_540&action=edit&redlink=1" class="new" title="Bell 540 (page does not exist)">540</a></li> <li><span class="tmp-color" style="color:grey">541–547</span><sup><small>1</small></sup></li> <li><a href="/wiki/Bell_47" title="Bell 47">548</a></li> <li><span class="tmp-color" style="color:grey">549–575</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=Bell_576&action=edit&redlink=1" class="new" title="Bell 576 (page does not exist)">576</a></li> <li><span class="tmp-color" style="color:grey">577–582</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=Bell_583&action=edit&redlink=1" class="new" title="Bell 583 (page does not exist)">583</a></li> <li><span class="tmp-color" style="color:grey">846–598</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=Bell_599&action=edit&redlink=1" class="new" title="Bell 599 (page does not exist)">599</a></li> <li><span class="tmp-color" style="color:grey">600–608</span><sup><small>1</small></sup></li> <li><a href="/wiki/Leonardo_AW609" title="Leonardo AW609">609</a></li> <li><span class="tmp-color" style="color:grey">610–645</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=Bell_646&action=edit&redlink=1" class="new" title="Bell 646 (page does not exist)">646</a></li> <li><span class="tmp-color" style="color:grey">647–679</span><sup><small>1</small></sup></li> <li><a href="/w/index.php?title=Bell_680&action=edit&redlink=1" class="new" title="Bell 680 (page does not exist)">680</a></li> <li><span class="tmp-color" style="color:grey">681–910</span><sup><small>1</small></sup></li> <li><a href="/wiki/Bell_Eagle_Eye" title="Bell Eagle Eye">911</a></li> <li><span class="tmp-color" style="color:grey">912–917</span><sup><small>1</small></sup></li> <li><a href="/wiki/Bell_Eagle_Eye" title="Bell Eagle Eye">918</a></li></ul> <ul><li><a href="/wiki/Bell_D-188A" title="Bell D-188A">D-188</a></li> <li><a href="/wiki/Bell_AH-1_Cobra" title="Bell AH-1 Cobra">D-255</a></li> <li><a href="/wiki/Bell_D-292" title="Bell D-292">D-292</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Fighter aircraft</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Bell_YFM-1_Airacuda" title="Bell YFM-1 Airacuda">YFM-1</a></li> <li><a href="/wiki/Bell_P-39_Airacobra" title="Bell P-39 Airacobra">P-39</a></li> <li><a href="/wiki/Bell_XFL_Airabonita" title="Bell XFL Airabonita">XFL</a></li> <li><a href="/wiki/Bell_P-59_Airacomet" title="Bell P-59 Airacomet">P-59</a></li> <li><a href="/wiki/Bell_P-63_Kingcobra" title="Bell P-63 Kingcobra">P-63</a></li> <li><a href="/wiki/Bell_P-76" title="Bell P-76">P-76</a></li> <li><a href="/wiki/Bell_XP-77" title="Bell XP-77">XP-77</a></li> <li><a href="/wiki/Bell_XP-83" title="Bell XP-83">XP-83</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Target drones</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Nord_CT41" title="Nord CT41">PQM-56</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Attack helicopters</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Bell_207_Sioux_Scout" title="Bell 207 Sioux Scout">207</a></li> <li>Bell AH-1 <ul><li><a href="/wiki/Bell_AH-1_Cobra" title="Bell AH-1 Cobra">Singles</a></li> <li><a href="/wiki/Bell_AH-1_SuperCobra" title="Bell AH-1 SuperCobra">Twins</a></li> <li><a href="/wiki/Bell_AH-1Z_Viper" title="Bell AH-1Z Viper">AH-1Z</a></li></ul></li> <li><a href="/wiki/Bell_309_KingCobra" title="Bell 309 KingCobra">309</a></li> <li><a href="/wiki/Bell_YAH-63" title="Bell YAH-63">YAH-63</a></li> <li><a href="/wiki/Bell_360_Invictus" title="Bell 360 Invictus">360</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Observation and<br />utility helicopters</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Bell_H-13_Sioux" title="Bell H-13 Sioux">H-13</a> <ul><li><a href="/wiki/Bell_47J_Ranger" title="Bell 47J Ranger">H-13J</a></li></ul></li> <li><a href="/wiki/Bell_UH-1_Iroquois" title="Bell UH-1 Iroquois">UH-1</a> <ul><li><a href="/wiki/Bell_UH-1N_Twin_Huey" title="Bell UH-1N Twin Huey">UH-1N</a></li> <li><a href="/wiki/Bell_UH-1Y_Venom" title="Bell UH-1Y Venom">UH-1Y</a></li></ul></li> <li><a href="/wiki/Bell_206#Military" title="Bell 206">TH-57</a></li> <li><a href="/wiki/Bell_OH-58_Kiowa" title="Bell OH-58 Kiowa">OH-58</a></li> <li><a href="/wiki/Bell_206#Military" title="Bell 206">TH-67</a></li> <li><a href="/wiki/Bell_ARH-70_Arapaho" title="Bell ARH-70 Arapaho">ARH-70</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Commercial helicopters</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Bell_47" title="Bell 47">47</a> <ul><li><a href="/wiki/Bell_47J_Ranger" title="Bell 47J Ranger">47J</a></li></ul></li> <li><a href="/wiki/Bell_204/205" title="Bell 204/205">204</a></li> <li><a href="/wiki/Bell_204/205" title="Bell 204/205">205</a></li> <li><a href="/wiki/Bell_206" title="Bell 206">206</a></li> <li><a href="/wiki/Bell_204/205" title="Bell 204/205">210</a></li> <li><a href="/wiki/Bell_212" title="Bell 212">212</a></li> <li><a href="/wiki/Bell_214" title="Bell 214">214</a> <ul><li><a href="/wiki/Bell_214ST" title="Bell 214ST">214ST</a></li></ul></li> <li><a href="/wiki/Bell_222/230" title="Bell 222/230">222</a></li> <li><a href="/wiki/Bell_222/230" title="Bell 222/230">230</a></li> <li><a href="/wiki/Bell_407" title="Bell 407">407</a></li> <li><a href="/wiki/Bell_412" title="Bell 412">412</a></li> <li><a href="/wiki/Bell_427" title="Bell 427">427</a></li> <li><a href="/wiki/Bell_429_GlobalRanger" title="Bell 429 GlobalRanger">429</a></li> <li><a href="/wiki/Bell_430" title="Bell 430">430</a></li> <li><a href="/wiki/Bell_505_Jet_Ranger_X" title="Bell 505 Jet Ranger X">505</a></li> <li><a href="/wiki/Bell_525_Relentless" title="Bell 525 Relentless">525</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Tiltrotors</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Bell_Boeing_V-22_Osprey" title="Bell Boeing V-22 Osprey">V-22</a></li> <li><a href="/wiki/Bell_V-247_Vigilant" title="Bell V-247 Vigilant">V-247</a></li> <li><a href="/wiki/Bell_V-280_Valor" title="Bell V-280 Valor">V-280</a></li> <li><a href="/wiki/Leonardo_AW609" title="Leonardo AW609">AW609</a></li> <li><a href="/wiki/Bell_Eagle_Eye" title="Bell Eagle Eye">TR918</a></li> <li><a href="/wiki/Bell_Boeing_Quad_TiltRotor" title="Bell Boeing Quad TiltRotor">QTR</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">UAVs</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Northrop_Grumman_MQ-8C_Fire_Scout" title="Northrop Grumman MQ-8C Fire Scout">MQ-8C</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Non-production helicopters</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Bell_400_TwinRanger" title="Bell 400 TwinRanger">400</a></li> <li><a href="/wiki/Bell_407" title="Bell 407">417</a></li> <li><a href="/wiki/Bell_400_TwinRanger" title="Bell 400 TwinRanger">440</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Experimental aircraft</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Bell_Model_65" title="Bell Model 65">ATV</a></li> <li><a href="/wiki/Bell_201" title="Bell 201">201</a></li> <li><a href="/wiki/Bell_533" title="Bell 533">533</a></li> <li><a href="/wiki/Bell_D-188A" title="Bell D-188A">D-188</a></li> <li><a href="/wiki/Bell_AH-1_Cobra" title="Bell AH-1 Cobra">D-255</a></li> <li><a href="/wiki/Bell_D-292" title="Bell D-292">D-292</a></li> <li><a href="/wiki/Bell_FCX-001" title="Bell FCX-001">FCX-001</a></li> <li><a href="/wiki/Bell_L-39" title="Bell L-39">L-39</a></li> <li><a href="/wiki/Lunar_Landing_Research_Vehicle" title="Lunar Landing Research Vehicle">LLRV/LLTV</a></li> <li><a href="/wiki/Bell_X-1" title="Bell X-1">X-1</a></li> <li><a href="/wiki/Bell_X-2" title="Bell X-2">X-2</a></li> <li><a href="/wiki/Bell_X-5" title="Bell X-5">X-5</a></li> <li><a href="/wiki/Bell_X-14" title="Bell X-14">X-14</a></li> <li><a href="/wiki/Bell_X-16" title="Bell X-16">X-16</a></li> <li><a href="/wiki/Bell_X-22" title="Bell X-22">X-22</a></li> <li><a href="/wiki/Bell_D-188A" title="Bell D-188A">XF-109</a></li> <li><a href="/wiki/Bell_XP-52" title="Bell XP-52">XP-52</a></li> <li><a href="/wiki/Bell_XV-3" title="Bell XV-3">XV-3</a></li> <li><a href="/wiki/Bell_XV-15" title="Bell XV-15">XV-15</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Names</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Bell_XFL_Airabonita" title="Bell XFL Airabonita">Airabonita</a></li> <li><a href="/wiki/Bell_P-39_Airacobra" title="Bell P-39 Airacobra">Airacobra</a></li> <li><a href="/wiki/Bell_P-59_Airacomet" title="Bell P-59 Airacomet">Airacomet</a></li> <li><a href="/wiki/Bell_YFM-1_Airacuda" title="Bell YFM-1 Airacuda">Airacuda</a></li> <li><a href="/wiki/Bell_ARH-70_Arapaho" title="Bell ARH-70 Arapaho">Arapaho</a></li> <li><a href="/wiki/Bell_214" title="Bell 214">BigLifter</a></li> <li><a href="/wiki/Bell_AH-1_Cobra" title="Bell AH-1 Cobra">Cobra</a></li> <li><a href="/wiki/Bell_206#Military" title="Bell 206">Creek</a></li> <li><a href="/wiki/Bell_Eagle_Eye" title="Bell Eagle Eye">Eagle Eye</a></li> <li><a href="/wiki/Northrop_Grumman_MQ-8C_Fire_Scout" title="Northrop Grumman MQ-8C Fire Scout">Fire Scout</a></li> <li><a href="/wiki/Bell_429_GlobalRanger" title="Bell 429 GlobalRanger">GlobalRanger</a></li> <li><a href="/wiki/Bell_UH-1_Iroquois" title="Bell UH-1 Iroquois">Huey</a></li> <li><a href="/wiki/Bell_AH-1_Cobra" title="Bell AH-1 Cobra">HueyCobra</a></li> <li><a href="/wiki/Bell_360_Invictus" title="Bell 360 Invictus">Invictus</a></li> <li><a href="/wiki/Bell_UH-1_Iroquois" title="Bell UH-1 Iroquois">Iroquois</a></li> <li><a href="/wiki/Bell_206" title="Bell 206">JetRanger</a></li> <li><a href="/wiki/Bell_505_Jet_Ranger_X" title="Bell 505 Jet Ranger X">Jet Ranger X</a></li> <li><a href="/wiki/Bell_P-63_Kingcobra" title="Bell P-63 Kingcobra">Kingcobra</a></li> <li><a href="/wiki/Bell_309_KingCobra" title="Bell 309 KingCobra">KingCobra</a></li> <li><a href="/wiki/Bell_OH-58_Kiowa" title="Bell OH-58 Kiowa">Kiowa</a></li> <li><a href="/wiki/Bell_206" title="Bell 206">LongRanger</a></li> <li><a href="/wiki/Bell_Boeing_V-22_Osprey" title="Bell Boeing V-22 Osprey">Osprey</a></li> <li><a href="/wiki/Bell_Boeing_Quad_TiltRotor" title="Bell Boeing Quad TiltRotor">Quad TiltRotor</a></li> <li><a href="/wiki/Bell_47J_Ranger" title="Bell 47J Ranger">Ranger</a></li> <li><a href="/wiki/Bell_AH-1_SuperCobra" title="Bell AH-1 SuperCobra">Sea Cobra</a></li> <li><a href="/wiki/Bell_206#Military" title="Bell 206">Sea Ranger</a></li> <li><a href="/wiki/Bell_47J_Ranger" title="Bell 47J Ranger">Sioux</a></li> <li><a href="/wiki/Bell_207_Sioux_Scout" title="Bell 207 Sioux Scout">Sioux Scout</a></li> <li><a href="/wiki/Bell_AH-1_SuperCobra" title="Bell AH-1 SuperCobra">SuperCobra</a></li> <li><a href="/wiki/Bell_UH-1Y_Venom" title="Bell UH-1Y Venom">Super Huey</a></li> <li><a href="/wiki/Bell_214ST" title="Bell 214ST">Super Transporter</a></li> <li><a href="/wiki/Bell_UH-1N_Twin_Huey" title="Bell UH-1N Twin Huey">Twin Huey</a></li> <li><a href="/wiki/Bell_400_TwinRanger" title="Bell 400 TwinRanger">TwinRanger</a></li> <li><a href="/wiki/Bell_V-280_Valor" title="Bell V-280 Valor">Valor</a></li> <li><a href="/wiki/Bell_UH-1Y_Venom" title="Bell UH-1Y Venom">Venom</a></li> <li><a href="/wiki/Bell_V-247_Vigilant" title="Bell V-247 Vigilant">Vigilant</a></li> <li><a href="/wiki/Bell_AH-1Z_Viper" title="Bell AH-1Z Viper">Viper</a></li> <li><a href="/wiki/Bell_AH-1Z_Viper" title="Bell AH-1Z Viper">Zulu Cobra</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div><sup>1</sup> Unknown/not assigned</div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="USN_helicopter_designations_pre-1962" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:USN_helicopters" title="Template:USN helicopters"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:USN_helicopters" title="Template talk:USN helicopters"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:USN_helicopters" title="Special:EditPage/Template:USN helicopters"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="USN_helicopter_designations_pre-1962" style="font-size:114%;margin:0 4em"><a href="/wiki/United_States_Navy" title="United States Navy">USN</a> helicopter designations pre-1962</div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Helicopter, Anti-submarine</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:14em"><a href="/wiki/Bell_Aircraft" title="Bell Aircraft">Bell</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a class="mw-selflink selflink">HSL</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:14em"><a href="/wiki/Sikorsky_Aircraft" title="Sikorsky Aircraft">Sikorsky</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Sikorsky_H-34" title="Sikorsky H-34">HSS-1</a></li> <li><a href="/wiki/Sikorsky_SH-3_Sea_King" title="Sikorsky SH-3 Sea King">HSS-2</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Helicopter, Crane</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="McDonnell" scope="row" class="navbox-group" style="width:14em"><a href="/wiki/McDonnell_Aircraft" class="mw-redirect" title="McDonnell Aircraft">McDonnell</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/McDonnell_HCH" class="mw-redirect" title="McDonnell HCH">HCH</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Helicopter, Observation</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:14em"><a href="/w/index.php?title=Convertawings&action=edit&redlink=1" class="new" title="Convertawings (page does not exist)">Convertawings</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/w/index.php?title=Convertawings_Model_C_Quadrotor&action=edit&redlink=1" class="new" title="Convertawings Model C Quadrotor (page does not exist)">HOC</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:14em"><a href="/wiki/Hiller_Aircraft" title="Hiller Aircraft">Hiller</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Hiller_YH-32_Hornet" title="Hiller YH-32 Hornet">HOE</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:14em"><a href="/wiki/Gyrodyne_Company_of_America" title="Gyrodyne Company of America">Gyrodyne</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Gyrodyne_RON_Rotorcycle" title="Gyrodyne RON Rotorcycle">HOG</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:14em"><a href="/wiki/Kaman_Aircraft" class="mw-redirect" title="Kaman Aircraft">Kaman</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Kaman_HH-43_Huskie" title="Kaman HH-43 Huskie">HOK</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:14em"><a href="/wiki/Sikorsky_Aircraft" title="Sikorsky Aircraft">Sikorsky</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Sikorsky_R-6" title="Sikorsky R-6">HOS</a></li> <li><a href="/wiki/Sikorsky_H-5" title="Sikorsky H-5">HO2S</a></li> <li><a href="/wiki/Sikorsky_H-5" title="Sikorsky H-5">HO3S</a></li> <li><a href="/wiki/Sikorsky_H-19_Chickasaw" title="Sikorsky H-19 Chickasaw">HO4S</a></li> <li><a href="/wiki/Sikorsky_S-52" title="Sikorsky S-52">HO5S</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Helicopter, Trainer pre-1948</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Sikorsky" scope="row" class="navbox-group" style="width:14em"><a href="/wiki/Sikorsky_Aircraft" title="Sikorsky Aircraft">Sikorsky</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Sikorsky_R-4" title="Sikorsky R-4">HNS</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Helicopter, Trainer 1948-1962</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:14em"><a href="/wiki/Hiller_Aircraft" title="Hiller Aircraft">Hiller</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Hiller_OH-23_Raven" title="Hiller OH-23 Raven">HTE</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:14em"><a href="/wiki/Kaman_Aircraft" class="mw-redirect" title="Kaman Aircraft">Kaman</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Kaman_HH-43_Huskie" title="Kaman HH-43 Huskie">HTK</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:14em"><a href="/wiki/Bell_Aircraft" title="Bell Aircraft">Bell</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Bell_H-13_Sioux" title="Bell H-13 Sioux">HTL</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Helicopter, Transport 1944-1962</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:14em"><a href="/wiki/Boeing_Rotorcraft_Systems" title="Boeing Rotorcraft Systems">Boeing Vertol</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Boeing_Vertol_CH-46_Sea_Knight" title="Boeing Vertol CH-46 Sea Knight">HRB</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:14em"><a href="/wiki/McDonnell_Aircraft" class="mw-redirect" title="McDonnell Aircraft">McDonnell</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/McDonnell_HRH" title="McDonnell HRH">HRH</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:14em"><a href="/wiki/Piasecki_Helicopter" title="Piasecki Helicopter">Piasecki</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Piasecki_HRP_Rescuer" title="Piasecki HRP Rescuer">HRP</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:14em"><a href="/wiki/Sikorsky_Aircraft" title="Sikorsky Aircraft">Sikorsky</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Sikorsky_H-19_Chickasaw" title="Sikorsky H-19 Chickasaw">HRS</a></li> <li><a href="/wiki/Sikorsky_CH-37_Mojave" title="Sikorsky CH-37 Mojave">HR2S</a></li> <li><a href="/wiki/Sikorsky_S-61R" title="Sikorsky S-61R">HR3S</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Helicopter, Utility pre-1949</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:14em"><a href="/wiki/McDonnell_Aircraft" class="mw-redirect" title="McDonnell Aircraft">McDonnell</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/McDonnell_XHJH_Whirlaway" title="McDonnell XHJH Whirlaway">HJD</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:14em"><a href="/wiki/McDonnell_Aircraft" class="mw-redirect" title="McDonnell Aircraft">McDonnell</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/McDonnell_XHJH_Whirlaway" title="McDonnell XHJH Whirlaway">HJH</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:14em"><a href="/wiki/Piasecki_Helicopter" title="Piasecki Helicopter">Piasecki</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Piasecki_HUP_Retriever" title="Piasecki HUP Retriever">HJP</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:14em"><a href="/wiki/Sikorsky_Aircraft" title="Sikorsky Aircraft">Sikorsky</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Sikorsky_XHJS" title="Sikorsky XHJS">HJS</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Helicopter, Utility 1950-1962</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:14em"><a href="/wiki/Kaman_Aircraft" class="mw-redirect" title="Kaman Aircraft">Kaman</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Kaman_HH-43_Huskie" title="Kaman HH-43 Huskie">HUK</a></li> <li><a href="/wiki/Kaman_SH-2_Seasprite" title="Kaman SH-2 Seasprite">HU2K</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:14em"><a href="/wiki/Bell_Aircraft" title="Bell Aircraft">Bell</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Bell_47J_Ranger" title="Bell 47J Ranger">HUL</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:14em"><a href="/wiki/McCulloch_Aircraft_Corporation" title="McCulloch Aircraft Corporation">McCulloch</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/McCulloch_MC-4" title="McCulloch MC-4">HUM</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:14em"><a href="/wiki/Piasecki_Helicopter" title="Piasecki Helicopter">Piasecki</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Piasecki_HUP_Retriever" title="Piasecki HUP Retriever">HUP</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:14em"><a href="/wiki/Sikorsky_Aircraft" title="Sikorsky Aircraft">Sikorsky</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Sikorsky_H-34" title="Sikorsky H-34">HUS</a></li> <li><a href="/wiki/Sikorsky_H-34" title="Sikorsky H-34">HU2S</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=Bell_HSL&oldid=1256680700">https://en.wikipedia.org/w/index.php?title=Bell_HSL&oldid=1256680700</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Help:Category" title="Help:Category">Categories</a>: <ul><li><a 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