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Aeroprakt A-20 Vista
The Aeroprakt A-20 Vista is a family of Ukrainian tandem two-seat high-wing, strut-braced, pusher configuration conventional landing gear, ultralight aircraft, produced by Aeroprakt. The A-20 was introduced into the North American market at AirVenture 1999.〔Cliche, Andre: ''Ultralight Aircraft Shopper's Guide'' 8th Edition, page B-67. Cybair Limited Publishing, 2001. ISBN 0-9680628-1-4〕〔Bertrand, Noel; Rene Coulon; et al: ''World Directory of Leisure Aviation 2003-04'', page 116. Pagefast Ltd, Lancaster OK, 2003. ISSN 1368-485X〕
==Design and development==
Design of the A-20 began in 1990, with the first prototype making its maiden flight on 5 August 1991, with the first production aircraft flying on 15 August 1993.〔Jackson 2003, p. 463.〕 The A-20 is constructed with a fiberglass forward fuselage and cockpit with aluminium wings and tail surfaces covered in doped aircraft fabric. The wing is fitted with half-span ailerons and flaps. The flaps are quite effective and lower the landing speed to . Flaperons are available on some models. The conventional landing gear has steel sprung main gear legs.〔〔
The A-20 was originally designed for the Rotax 503 two-stroke aircraft engine. The low drag airframe produces acceptable performance on this low power output. Optional engines include the Rotax 582 and Rotax 912ULS〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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