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Igor Sikorsky
Igor Ivanovich Sikorsky (May 25, 1889 - October 26, 1972) was a Russian-born American pioneer of aviation who designed the first four-engine aeroplanes and the first practical helicopter.
On May 13, 1913 Sikorsky became the first person to pilot a four engine aircraft.
On May 24, 1940 he performed the first successful single-rotor helicopter flight.
- Sikorsky's autobiography, The Story of the Winged S. (originally published 1938; updated editions, various years up to 1948)
- Frank J. Delear, Igor Sikorsky: His Three Careers in Aviation (New York, 1969) - described as "the only biography"[1] (http://www.ctheritage.org/encyclopedia/ctsince1929/sikorsky.htm)
- Igor Sikorsky (http://www.ctheritage.org/encyclopedia/ctsince1929/sikorsky.htm) article from ctheritage.org (http://www.ctheritage.org/) (reference)
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