Nord 1700 Norelic prototype helicopter developed by the French in the late 1940s.
Previously:
Piasecki HRP Rescuer tandem rotor helicopter - photos
Piasecki X-49 SpeedHawk compound helicopter - GIF
Igor Sikorsky test flying the VS-300 helicopter - GIF
Lockheed XH-51 experimental helicopter - GIF
Hughes XV-9 research helicopter - photo
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