November 5, 1964. First flight of the Hughes XV-9 (Hughes Model 385). A fast American research helicopter. Powered by two 2,850 hp General Electric YT64-GE-6 gas turbines.
November 5, 1964. First flight of the Hughes XV-9 (Hughes Model 385). A fast American research helicopter. Powered by two 2,850 hp General Electric YT64-GE-6 gas turbines.
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