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The Howland H-3 Pegasus is an American ultralight aircraft that was designed by Bert Howland and made available by Howland Aero Design in the form of plans for amateur construction, with kits provided by Aircraft Spruce & Specialty Co. The H-3 first flew in 1988.〔Cliche, Andre: ''Ultralight Aircraft Shopper's Guide'' 8th Edition, page E-2. Cybair Limited Publishing, 2001. ISBN 0-9680628-1-4〕〔Downey, Julia: ''1999 Plans Aircraft Directory'', Kitplanes, Volume 16, Number 1, January 1999, page 56. Primedia Publications. ISSN 0891-1851〕〔Purdy, Don: ''AeroCrafter - Homebuilt Aircraft Sourcebook'', page 140. BAI Communications. ISBN 0-9636409-4-1〕〔Downey, Julia: ''2003 Plans Aircraft Directory'', Kitplanes, Volume 20, Number 1, January 2003, page 19. Primedia Publications. ISSN 0891-1851〕〔Downey, Julia: ''2001 Plans Aircraft Directory'', Kitplanes, Volume 18, Number 1, January 2001, page 17. Kitplanes Acquisition Company. ISSN 0891-1851〕〔Downey, Julia: ''2002 Plans Aircraft Directory'', Kitplanes, Volume 19, Number 1, January 2002, page 14. Kitplanes Acquisition Company. ISSN 0891-1851〕 ==Design and development== The aircraft is a monoplane derivation of the biplane H-2 Honey Bee and was designed to comply with the US FAR 103 Ultralight Vehicles rules, including the category's maximum empty weight of . The aircraft has a standard empty weight of , when equipped with the now-out of production Rotax 277 single cylinder engine. If equipped with heavier engines it falls into the ''Experimental - Amateur-built'' category in its home country, although still qualifies as an ultralight in other countries, such as Canada. The H-3 features a cantilever low-wing, a single-seat, open cockpit, conventional landing gear and a single engine in tractor configuration.〔〔 The aircraft is made from wood and aluminium and covered in doped aircraft fabric covering. The fuselage is made from square aluminum tubing that is TIG welded and weighs when completed. Its span wing is of a straight planform. The landing gear is conventional, with suspended main wheels and a steerable tailwheel. The cockpit is of an open design, with a small windshield. Controls are conventional three-axis, with ailerons, rudder and elevator.〔〔 Since the death of the designer plans have been intermittently available and were last provided by Classic Aero Enterprises. Aircraft Spruce and Specialty continue to provide raw materials kits.〔〔〔〔 The aircraft has an acceptable power range of . The use of the Rotax 277, or the similar weight and power Hirth F-33, allows the aircraft to fit into the US ultralight category if weight is carefully controlled during construction. However the H-3 is underpowered with this engine and most have been equipped with heavier engines of higher output, such as the Rotax 447 or the Rotax 503. The Hirth F-263 and Hirth 2704 have also been used.〔〔〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Howland H-3 Pegasus」の詳細全文を読む スポンサード リンク
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