Primarily active in: United States of America
Igor I. SIkorsky was one of the most important figures in the design and development of rotary winged vehicles into practical and useful aircraft. He founded what would become the Sikorsky Aircraft Corporation.
He was born in Kiev, Imperial Russia (now Ukraine) on May 25, 1889 and became a naturalized American citizen in 1928. He died Oct 26, 1972 aged 83.
A detailed history of his life and work can be found on the Sikorsky Archives web site,
History, SIkorsky Archives, Sikorsky Archives staff, last accessed June 10, 2017