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- References
A proprotor is a spinning airfoil that is used as both an airplane-style propeller and a helicopter-style rotor during the same flight.[1] Proprotors are typically used on vertical takeoff and landing (VTOL) aircraft. The dual-role airfoil is accomplished by one of several design approaches: - changing the angle of attack of the wing that the proprotor is attached to, from approximately zero degrees to around ninety degrees: a tiltwing aircraft,
- changing the angle of attack of only the rotor hub, and possibly the engine that drives it, as on a tiltrotor,
- changing the angle of attack of the entire aircraft, as on a tailsitter, which launches and lands on its tail.[2]
See also- Bell Boeing V-22 Osprey
- Convertiplane
- NASA Puffin personal aircraft
References1. ^United States Navy—V-22 Osprey Web
2. ^{{cite web|url=http://blogs.discovermagazine.com/80beats/2010/01/20/meet-the-puffin-nasas-one-man-electric-plane/|title=Meet the "Puffin," NASA’s One-Man Electric Plane|author=Smriti Rao|date=January 20, 2010|website=Discover Magazine}}
{{Aircraft gas turbine engine components}} 2 : Tiltrotor aircraft|Aircraft configurations |