XV-1 Convertiplane (McDonnell 1954)
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The XV-1 Convertiplane compound helicopter for the U.S. Army made the first successful conversion from vertical rotor lift to horizontal winged flight.
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XV-1 Convertiplane (McDonnell 1954)
|
|
The XV-1 Convertiplane compound helicopter for the U.S. Army made the first successful conversion from vertical rotor lift to horizontal winged flight.
|