Encyclopedia : Y : YF : YF1 (7 articles)

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YF-17 Cobra
YF-17 Cobra in flight The Northrop YF-17 Cobra was a prototype fighter aircraft designed for the United States Air Force. It was a modernized version of the P-530-Fighter designed without any funding from the government. The first flight of the YF-17 prototype was in 1974. In 1972 the United..

 

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