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The Kelly-D is an American homebuilt aircraft that was designed by Dudley R. Kelly of Versailles, Kentucky, in 1981. When it was available the aircraft was supplied in the form of plans for amateur construction. Aircraft Spruce & Specialty Co still provides some spruce wing parts for the design.〔Purdy, Don: ''AeroCrafter - Homebuilt Aircraft Sourcebook, Fifth Edition'', page 182. BAI Communications, 15 July 1998. ISBN 0-9636409-4-1〕 Dudley R. Kelly died on 20 September 1998. After his death, his widow, Thelma Kelly continued selling plans for a time and they are now sold by the Hatz Biplane Association.〔 ==Design and development== The Kelly-D is a development of the Hatz CB-1, but with more wingspan and fuselage length and with more cockpit space for larger pilots. It features a strut-braced biplane layout, two seats in separate tandem open cockpits with individual windshields, fixed conventional landing gear and a single engine in tractor configuration.〔 The aircraft is made from a combination of 4130 steel tubing and wood, with all surfaces covered in doped aircraft fabric. Its span wing is made with a spruce structure and has a wing area of . The wings are detachable for ground transportation and storage. The standard engine used is the Lycoming O-235 four stroke powerplant.〔〔 The Kelly-D has a typical empty weight of and a gross weight of , giving a useful load of . With full fuel of the payload for pilot, passenger and baggage is .〔 The designer estimated the construction time from the supplied kit as 4000 hours.〔 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「Kelly-D」の詳細全文を読む スポンサード リンク
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