The Sikorsky Aircraft Corporation reference article from the English Wikipedia on 24-Jul-2004
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Sikorsky Aircraft Corporation

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Sikorsky is an American helicopter manufacturer founded in 1923 by Russian/Polish born American Igor Sikorsky, the inventor of the first successful helicopter design, upon which the majority of subsequent helicopters were based (though he did not invent the helicopter itself). The company is now a subsidiary of United Technologies Corporation, but remains one of the leading helicopter manufacturers, producing such well-known models as the UH-60 Black Hawk and SH-60 Sea Hawk, as well as some experimental ones like the Sikorsky X-wing.


Sikorsky designates nearly all of its models with S-numbers; numbers S-1 through S-20 were designed by Igor Sikorsky in Russia. Later models, especially helicopters, received multiple designations by the military services using them, often depending on purpose (UH, SH, and MH for instance), even if the physical craft had only minor variations in equipment. In some cases, the aircraft were returned to Sikorsky or to another manufacturer and additionally modified, resulting in still further variants on the same basic model number.

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