Bell XV-3
Tiltrotor
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The Bell XV-3 is an American tiltrotor aircraft developed by Bell Helicopter for a joint research program between the United States Air Force and the United States Army in order to explore convertiplane technologies. Wikipedia
Engine type: Pratt & Whitney R-985 Wasp Junior
First flight: August 11, 1955
Manufacturer: Bell Textron
Range: 255 mi
Top speed: 184 mph
Number built: 2