__NOTOC__ 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.

Aircraft on display

*The Arlington Sisu 1A that broke the 1000 km distance record was donated to the Smithsonian Institution and resides in the Udvar-Hazy Center (UHC) of the

National Air and Space Museum The National Air and Space Museum of the Smithsonian Institution, also called the Air and Space Museum, is a museum in Washington, D.C., in the United States. Established in 1946 as the National Air Museum, it opened its main building on the Nat ...

. UHC is located in the Washington, DC suburb of Chantilly, VA near Dulles International Airport.

Specifications (Sisu 1)

References

* * * * {{cite book , last= Coates , first= Andrew , title=Jane's World Sailplanes and Motor Gliders , year=1978 , publisher=MacDonald and Jane's , location=London , page=177 1950s United States sailplanes Glider aircraft Aircraft first flown in 1958 V-tail aircraft