Sikorsky Aircraft Sikorsky Aircraft The Sikorsky Aircraft Corporation is an American aircraft manufacturer based in Stratford, Connecticut. It was established by Igor Sikorsky in 1923 and was among the first companies to manufacture helicopters for civilian and military use. Previously owned by United Technologies Corporation (UTC), in November 2015 Sikorsky was sold to Lockheed Martin. On May 23, 1923, the "Sikorsky Aero Engineering Corporation" was founded near Roosevelt Field by Igor Sikorsky, an immigrant to the United States who was born in Kiev. In 1925 the company name was changed to "Sikorsky Manufacturing Company". In 1929 the company moved to [[Stratford, Connecticut]],
Igor Sikorsky a naturalized citizen of the United States. The Sikorsky Manufacturing Company moved to Stratford, Connecticut in 1929. It became a part of the United Aircraft and Transport Corporation (now United Technologies Corporation) in July of that year. The company manufactured flying boats, such as the S-42 "Clipper", used by Pan Am for transatlantic flights. Meanwhile, Sikorsky also continued his earlier work on vertical flight while living in Nichols, Connecticut. On February 14, 1929, he filed an application to patent a "direct lift" amphibian aircraft which used compressed air to power a direct lift "propeller" and two smaller propellers for thrust.