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VTOL aircraft

  • US 5,421,538 A
  • Filed: 01/12/1994
  • Issued: 06/06/1995
  • Est. Priority Date: 09/29/1993
  • Status: Expired due to Fees
First Claim
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1. A vertical takeoff and landing heavier-than-air aircraft comprising:

  • a fuselage;

    a power plant in the fuselage;

    a ducted fan in the fuselage and driven by the engine, the ducted fan being arranged to rotate about a vertical axis with respect to the aircraft for providing thrust to the aircraft for vertical takeoff and landing;

    at least one stator vane pivotally mounted in the aircraft to receive the thrust of the ducted fan and provide an adjustable torque to the ducted fan for controlling the aircraft in yaw; and

    a gyroscopic propeller device rotatably and pivotally attached to the fuselage of the aircraft for rotation about a vertical axis with respect to the aircraft, said propeller device being rotated by the thrust from the ducted fan thereby providing additional lift, gyroscopic stability, and direction to the aircraft.

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