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The Schweizer SGS 2-33 is an American two-seat, high-wing, strut-braced, training glider that was built by Schweizer Aircraft of Elmira, New York.〔〔〔Schweizer, Paul A: ''Wings Like Eagles, The Story of Soaring in the United States'', pages 227-327. Smithsonian Institution Press, 1988. ISBN 0-87474-828-3〕 The 2-33 was designed to replace the Schweizer 2-22, from which it was derived. The aircraft first flew in 1965 and production was started in 1967. Production was completed in 1981.〔〔〔 From its introduction until the late 1980s, the 2-33 was the main training glider used in North America.〔〔〔 ==Background== The SGU 2-22 two seat training glider was introduced in 1945 and quickly became the most popular training glider in the USA.〔Said, Bob: ''1983 Sailplane Directory, Soaring Magazine'', page 28. Soaring Society of America, November 1983. USPS 499-920〕 By the early 1960s it became obvious to Schweizer Aircraft that a replacement for the 2-22 was needed. At that time the single seat Schweizer SGS 1-26 was becoming very popular for one-design competition flying. The company realized that the new trainer should have similar performance to the 1-26, in order to be used as the 1-26's two seat transition trainer.〔 SGU 2-22 production was ended at serial number 258 in 1967 to commence production of the new model.〔 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 2-33」の詳細全文を読む スポンサード リンク
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