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Schreder HP-20 : ウィキペディア英語版 | Schreder HP-20
The Schreder HP-20 is an American, high-wing, T-tail, single seat glider designed by Richard Schreder.〔Said, Bob: ''1983 Sailplane Directory, Soaring Magazine'', page 24. Soaring Society of America, November 1983. USPS 499-920〕 ==Design and development== The HP-20 was designed by Schreder for the FAI 15 Metre Class. The HP-20 prototype was just complete when Schreder lost interest in the project and moved on to work on the HP-21 instead. The sole example of the HP-20 was built by Schreder in his workshop in Byran, Ohio and first flew in 1981.〔 The HP-20 is all-metal with foam wing ribs. The design shares a similar fuselage to the HP-19, but has a different double-tapered wing of smaller area, versus for the HP-19. This gives the HP-20 a higher wing loading and higher best glide speed, although the glide ratio is the same as the HP-19 at 42:1. The airfoil is a Schreder modification of a Wortmann section, designated as ''Schreder 3''. of water ballast can be carried. The landing gear is a retractable monowheel.〔
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「Schreder HP-20」の詳細全文を読む
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