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Proprotor

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This is an old revision of this page, as edited by N2e (talk | contribs) at 18:45, 10 February 2010 (copyedit and add link; clarify that a third design approach exists, not a tiltwing nor a tiltrotor, but a tailsitter). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

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 from around zero degrees to around ninety degrees of the wing it is attached to: 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.

See also

References

  1. ^ United States Navy - V-22 Osprey Web
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