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Gyro stabilized triple mode aircraft

  • US 6,086,016 A
  • Filed: 01/21/1998
  • Issued: 07/11/2000
  • Est. Priority Date: 01/21/1997
  • Status: Expired due to Fees
First Claim
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1. In a helicopter main rotor of the type producing lift when rotated about a rotor axis, the rotor including a hub and a plurality of rotor blades radiating from the hub, each rotor blade having an airfoil cross-section for generating lift in response to rotation of the rotor, the improvement comprising:

  • a circular airfoil comprising an annular element with an airfoil cross section mounted on outer ends of the rotor blades, coaxially with the hub for generating lift in response to movement of the rotor in a forward direction transverse to the rotor axis, whereby on rotation of the rotor, the rotor blades produce a lift generating flow of air across the circular airfoil.

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