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The Sikorsky Aircraft Corporation is an American aircraft manufacturer based in Stratford, Connecticut. It was established by Igor Sikorsky in 1925. Previously owned by United Technologies Corporation (UTC), in November 2015 Sikorsky was sold to Lockheed Martin. ==History== Sikorsky was founded in 1925 by aircraft engineer Igor Sikorsky, an American immigrant who was born in Kiev.〔(About Sikorsky ). Sikorsky Aircraft, accessed 10 May 2008.〕 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.〔Spenser 1998〕 thumb Clipper flying boat from 1937" TITLE="Russian Empire at the time. Please do not add either Russian- or Ukrainian- here — this dispute is not worth an edit war, and is better handled in Igor's bio article, not here. -->〔(About Sikorsky ). Sikorsky Aircraft, accessed 10 May 2008.〕 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.〔Spenser 1998〕 thumb Clipper flying boat from 1937">Russian Empire at the time. Please do not add either Russian- or Ukrainian- here — this dispute is not worth an edit war, and is better handled in Igor's bio article, not here. -->〔(About Sikorsky ). Sikorsky Aircraft, accessed 10 May 2008.〕 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.〔Spenser 1998〕 thumb Clipper flying boat from 1937 In the United States, Igor Sikorsky originally concentrated on the development of multi-engined landplanes and then amphibious aircraft. In the late 1930s, sales declined and United Aircraft merged his division with Vought Aircraft.〔 He took this opportunity to begin work on developing a practical helicopter. After first flying the VS-300 he developed the Sikorsky R-4, 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 Sikorsky 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 S-72 X-Wing. It is a leading defense contractor. Sikorsky has supplied the Presidential helicopter since 1957. Sikorsky's VH-3 and VH-60 currently perform this role. The company acquired Helicopter Support Inc. (HSI) in 1998. HSI handles non-U.S. government after-market support for parts and repair for the Sikorsky product lines.〔(About Us ). hsius.com.〕 UTC acquired Schweizer Aircraft Corp. in 2004,〔(Schweizer acquisition press release )〕 which now operates as a subsidiary of Sikorsky. The product lines of the two firms are complementary, and have very little overlap, as Sikorsky primarily concentrates on medium and large helicopters, while Schweizer produces small helicopters, UAVs, gliders, and light planes. The Schweizer deal was signed on August 26, 2004, exactly one week after the death of Paul Schweizer, the company's founder and majority owner. In late 2005, Sikorsky completed the purchase of Keystone Helicopter Corporation, located in Coatesville, Pennsylvania. Keystone had been maintaining and completing Sikorsky S-76 and S-92 helicopters prior to the sale. In 2007, Sikorsky opened the Hawk Works,〔(Hawk Works opening article ) GlobalSecurity.org〕 a Rapid Prototyping and Military Derivatives Completion Center (RPMDCC) located west of the Elmira-Corning Regional Airport in Big Flats, New York. That same year Sikorsky purchased the PZL Mielec plant in Poland. The plant is assembling the S-70i for international customers.〔("Sikorsky breathes new life into PZL Mielec" ). Flight International, June 8, 2010.〕〔("First S-70i Helicopter Fully Assembled at Sikorsky Facility in Poland" ). Sikorsky, March 15, 2010.〕 In February 2009, Sikorsky Global Helicopters was created as a business unit of Sikorsky Aircraft to focus on the construction and marketing of commercial helicopters.〔Sikorsky Press Release, 23 February 2009〕 The business unit combines the main civil helicopters that were produced by Sikorsky Aircraft and the helicopter business of Schweizer Aircraft that Sikorsky has acquired in 2004.〔 It is based at Coatesville, Pennsylvania.〔 In 2011, Sikorsky laid off 400 workers at the Hawk Works plant, and later in 2012 the remaining 570 workers and closed all Sikorsky facilities in Chemung County; moving the military completion work to their West Palm Beach, Florida facility.〔(【引用サイトリンク】title=Sikorsky to close N.Y. plant, cut 570 jobs )〕 The commercial products had already been moved to their Coatesville, Pennsylvania facility. Sikorsky's main plant and administrative offices are located in Stratford, Connecticut. Other Sikorsky facilities are in Shelton, and Bridgeport, Connecticut; Fort Worth, Texas; West Palm Beach, Florida; and Huntsville, and Troy, Alabama. Other Sikorsky-owned subsidiaries are in Trumbull, Connecticut; Coatesville, Pennsylvania; and Grand Prairie, Texas; among others around the world. In 2015, UTC considered Sikorsky to be less profitable than its other subsidiaries, and analyzed a possible spin-off rather than a tax-heavy sale.〔"(United Technologies To Explore Strategic Alternatives For Its Sikorsky Aircraft Business )" ''UTC'' Press Release, 11 March 2015.〕〔By MARCUS WEISGERBER and ZACHARY FRYER-BIGGS, Vago Muradian. "(UTC Weighs Sikorsky's Future )" 27 January 2015.〕 On July 20, 2015, Lockheed Martin announced an agreement to purchase Sikorsky from UTC for $9.0 billion.〔(【引用サイトリンク】title=Lockheed Martin to Acquire Sikorsky Aircraft and Conduct Strategic Review of IT and Technical Services Businesses )〕 Final approval (from the Chinese government) came in November 2015.〔(Lockheed Martin receives final regulatory approval needed to close Sikorsky acquisition )〕 The sale was completed on November 6, 2015.〔(Lockheed Martin Completes Acquisition of Sikorsky Aircraft )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Sikorsky Aircraft」の詳細全文を読む スポンサード リンク
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