Sisu 1A

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Sisu 1A
Arlington Sisu 1A.jpg
Sisu 1A on display at the Steven F. Udvar-Hazy Center
RoleCompetition sailplane
National originUnited States
Manufacturer Astro Corporation, Arlington Aircraft Company
Designer Leonard Niemi
First flight20 December 1958
Number built11 [1]

The Sisu 1A is a competition sailplane built in the United States in the late 1950s and early 1960s. Originally designed by Leonard Niemi as a homebuilt sailplane, its first flight in 1958 showed such promise that Niemi decided instead to manufacture it in series production. Niemi formed the Arlington Aircraft Company for this purpose. The Sisu 1A quickly proved itself as the most competitive American sailplane ever developed, winning the 1962, 1965, and 1967 U.S. National Soaring Championships. On July 31, 1964, a Sisu 1a piloted by Alvin H. Parker became the first sailplane ever to fly farther than 1000 km. [2]

Contents

Electronic copy of the original invitation (front) to attend the dedication of the Sisu 1A to the Smithsonian in 1968. Sisu 1A Smithsonian Invitation 1968.pdf
Electronic copy of the original invitation (front) to attend the dedication of the Sisu 1A to the Smithsonian in 1968.
Electronic copy of the original invitation (back) to attend the dedication of the Sisu 1A to the Smithsonian in 1968. Sisu 1A Smithsonian Invitation 1968 back.pdf
Electronic copy of the original invitation (back) to attend the dedication of the Sisu 1A to the Smithsonian in 1968.

Aircraft on display

Specifications (Sisu 1)

Sisu 1A three view drawing Sisu1A3view wiki.GIF
Sisu 1A three view drawing
Bill Ivan prepares his Sisu 1A for competition at the 30th National Soaring Championships at Harris Hill, NY in July, 1963. Bill Ivan's Sisu 1A.jpg
Bill Ivan prepares his Sisu 1A for competition at the 30th National Soaring Championships at Harris Hill, NY in July, 1963.

Data from The World's Sailplanes:Die Segelflugzeuge der Welt:Les Planeurs du Monde Volume II [3]

General characteristics

Performance

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References

  1. ↑ Said, Bob (November 1983). "1983 Sailplane Directory". Soaring Magazine. Soaring Society of America: 33.
  2. ↑ "Arlington Sisu 1A". National Air and Space Museum, Smithsonian Institution. 2000. Archived from the original on December 28, 2007. Retrieved February 21, 2008.
  3. ↑ Shenstone, B.S.; K.G. Wilkinson (1963). The World's Sailplanes:Die Segelflugzeuge der Welt:Les Planeurs du Monde Volume II (in English, French, and German) (1st ed.). Zurich: Organisation Scientifique et Technique Internationale du Vol a Voile (OSTIV) and Schweizer Aero-Revue. pp. 34–36.
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