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Jacek Nowicki
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دانلود کتاب Lockheed Martin/Boeing F-22 Raptor
by Jacek Nowicki|
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عنوان فارسی: لاکهید مارتین / بوئینگ F-22 رپتور |
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جزییات کتاب
The F-22 Raptor will become the replacement for the F-15 Eagle air-superiority fighter. It combines a stealth design with highly maneuverable, supersonic (supercruise) speed, with air-to-air and air-to-ground capabilities. Before its selection as winner of the Advanced Tactical Fighter competition, there was a four and a half year demonstration/validation programme. This involved two YF-22 prototypes and two prototype engine, the Pratt Whitney YF119 and the General Electric YF120. The demonstration/validation programme ended in December 1990. The first F-22 Raptor next-generation air dominance fighter, 4001, was unveiled at a rollout ceremony at Marietta, Georgia, on 9th April 1997. It made its first flight on 7th September 1997. The second Raptor, 4002, flew for the first time on 29th June 1998.
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