Igor Sikorsky's VS-300 Helicopter Transformed Aviation 75 Years Ago - PR Newswire (press release) [feedly]
martes, 16 de septiembre de 2014
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Igor Sikorsky's VS-300 Helicopter Transformed Aviation 75 Years Ago - PR Newswire (press release)
// sikorsky: Google Noticias
Igor Sikorsky's VS-300 Helicopter Transformed Aviation 75 Years Ago
PR Newswire (press release)
12, 2014 /PRNewswire/ -- Sikorsky Aircraft, a subsidiary of United Technologies Corp. (NYSE: UTX), this weekend will mark 75 years of modern helicopter flight that began September 14, 1939, when 50-year-old chief designer and chief test pilot Igor ...
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