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The Sikorsky Aircraft Corporation is an American aircraft manufacturer. Sikorsky was founded in...

The Sikorsky Aircraft Corporation is an American aircraft manufacturer. Sikorsky was founded in 1925 by aircraft engineer Igor Sikorsky, a Kiev-born American immigrant. The company, named "Sikorsky Manufacturing Company", began aircraft production in Roosevelt, New York that year. In 1929 the company moved to Stratford, Connecticut. It became a part of United Aircraft and Transport Corporation (now United Technologies Corporation) in July of that year. Igor Sikorsky developed the first stable, single-rotor, fully-controllable helicopter to enter large full-scale production in 1942, upon which the majority of subsequent helicopters were based (though he did not invent the helicopter itself). Sikorsky Aircraft remains one of the leading helicopter manufacturers, producing such well-known models as the UH-60 Black Hawk and SH-60 Seahawk, as well as experimental types like the Sikorsky X-Wing. It is a leading defense contractor. Until recently, Sikorsky has supplied the helicopter of the President of the United States, Marine One since 1957. In January 2005, the U.S. government selected Lockheed Martin's AgustaWestland AW101-based entry (VH-71 Kestrel) over a S-92 variant as the