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The Schweizer SGS 1-24, also referred to as the Schweizer-Burr SGS 1-24, is a United States single-seat, mid-wing, Open Class competition glider built by Howard Burr and Schweizer Aircraft of Elmira, New York.〔Said, Bob: ''1983 Sailplane Directory, Soaring Magazine'', page 30. Soaring Society of America, November 1983. USPS 499-920〕 The 1-24 is a development of the Schweizer SGS 1-23 that utilized a 1-23 fuselage and a newly constructed set of 55 foot (16.9 m) span, high aspect ratio wings.〔 The aircraft was constructed as a spare time project by Howie Burr and Ernest Schweizer to produce a competition sailplane. The aircraft first flew in 1953 and one example was completed.〔〔 ==Design and development== The early 1950s were the heyday of the SGS 1-23 design. From the time of its introduction in 1948 the production sailplane had dominated soaring contests in the USA.〔 Schweizer Aircraft employee Howie Burr conceived of creating an improved version of the 1-23 by using the existing fuselage and building a set of 17.10:1 aspect ratio wings for the aircraft. The span wings gave the aircraft a 30:1 glide ratio and a low minimum sink speed. Those performance figures are identical to the 1-23D〔〔 Burr finished the aircraft in his spare time, flying it first in early 1953. The 1-24 was ready for competition flying in time for the 1953 US Nationals, which were held at Harris Hill, New York.〔〔〔 The 1-24 design was never certified and the sole aircraft that was built is an experimental aircraft in the "racing, exhibition" class and registered as N91888.〔 The 1-24 is of all metal construction, including aluminum wings.〔〔 The design incorporated some innovative concepts in addition to the high aspect ratio wing. It had a shuttle weight that could be moved by cable through the length of the tail that allowed the glider to be trimmed anywhere between 50 mph (80 km/h) and 80 mph (129 km/h).〔〔 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「Schweizer SGS 1-24」の詳細全文を読む スポンサード リンク
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