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Pitts S-1/S-2 is the most successful and recognized American
built aerobatic aircraft. The second S-1 built, flown
and named "Little Stinker" by Betty Skelton, won the
1949 and 1950 Feminine Aerobatic Championships--beginning the Pitts
domination of aerobatic championships into the 1980s. Many
Pitts Specials can be seen on the airshow circuit.
The rights to the Pitts S-1/S-2 was acquired by
Aviat Aviation in 1991.
Factoid: The Pitts S-1/S-2 has won more
aerobatic contests than any other aircraft type.