SU-1 | |
---|---|
Role | Glider |
National origin | United States |
Manufacturer | Stevens Institute of Technology |
First flight | 1933 |
Introduction | 1933 |
Status | No longer in production |
Number built | about 4 |
Developed from | Franklin PS-2 |
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. [1]
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 36 ft (11.0 m) wings were replaced with 46 ft (14.0 m) 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. [1]
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 400 lb (181 kg) to 550 lb (249 kg). [1]
About four SU-1s were produced. [1]
In 1983 Soaring magazine reported that two SU-1s were still in existence, one in serviceable condition and one in need of repair. [1]
In April 2011 one remained on the Federal Aviation Administration register. [2]
Data from Soaring [1]
General characteristics
Performance
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