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Kasper Bekas : ウィキペディア英語版 | Kasper Bekas
The Kasper Bekas is a family of American mid-wing, tailless gliders designed by Witold Kasper and derived from the earlier 1959 Brochocki BKB-1 design.〔Said, Bob: ''1983 Sailplane Directory, Soaring Magazine'', page 36. Soaring Society of America November 1983. USPS 499-920〕 ==Design and development== The Bekas series was an attempt by Kasper to create an experimental tailless glider with a higher glide ratio, better ground handling and rigging, using a flexible wing to study the effects of wing flexing on stability and controllability in flight.〔〔 The Bekas is built from wood and covered in plywood. The wing uses a NACA 8-H-12 airfoil and has greater span and higher aspect ratio than the BKB-1 to achieve its goals. The wing features outboard trailing edge control surfaces that act both as elevator for pitch control and aileron for roll control. The wing is swept 15° and has a chord of . The landing gear is a fixed monowheel.〔〔 The design resulted in a high glide ratio for a wingspan of 45:1, along with a reasonably low sink rate of 2.0 feet per second.〔〔
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「Kasper Bekas」の詳細全文を読む
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