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First Flights with Neil Armstrong - Season 3 Episode 1
From Cierva's breakthrough in autogyro design, to the state-of-the-art BK-117, the heart of the helicopter story has been the rotorhead. Early helicopters were complex, dangerous flying machines, prone to failure. For the men and women who took the controls, concentration and daring were essential.
- Quốc gia : United States of America
- Thể loại : Documentary
- Giám đốc : Rick Gordon
- Diễn viên : Neil Armstrong