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Stevens SU-1 : ウィキペディア英語版 | Stevens SU-1
The Stevens SU-1 is an American single seat, high-wing, strut-braced, glider that was designed in 1933 by students at the Stevens Institute of Technology in Hoboken, New Jersey.〔Said, Bob: ''1983 Sailplane Directory, Soaring Magazine'', page 34. Soaring Society of America, November 1983. USPS 499-920〕 ==Design and development== The SU-1 was developed as an attempt to improve the performance of the Franklin PS-2, by designing new wings for it as a student project. The PS-2's straight wings were replaced with gull-wings. Like the original wings, the new wings have two spars, but instead of parallel struts, the new wings use V-struts terminating at a single fuselage attachment point. Jury struts are also used. Like the original wings, the new wings are a wooden structure, covered in doped aircraft fabric covering. The SU-1 retains the PS-2's original steel tube fuselage. The landing gear is a fixed monowheel type.〔 Testing showed that the Stevens Institute students were successful and the SU-1 has a glide ratio of 17:1, two points better than the PS-2. It also has a slightly higher sink rate of 180 feet per minute versus the PS-2's 150. Gross weight was also increased from to .〔 About four SU-1s were produced.〔
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