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US 12,017,754 B2Granted
Download reducing wingtips
AssigneeTextron Innovations Inc.
InventorsKent E. Donaldson, Phillip A. Kendrick, Kyle Smolarek
Life of this patent
Estimating the term…
Abstract
An aircraft includes a wing positioned below a vertical rotor, the wing extending in a transverse direction to a wingtip having an outboard face, and a turbulence feature located on the wingtip and oriented to induce turbulence in the rotor downwash flowing across the outboard face in a direction from a top surface of the wing to a bottom surface of the wing.
Claims12
An aircraft comprising:
- a vertical rotor in operation producing a rotor downwash;
- a wing positioned below the vertical rotor and extending in a transverse direction to a wingtip having an outboard face;
- and
- a fixed turbulence feature located on the outboard face of the wingtip and extending transversely outboard from the outboard face, the turbulence feature oriented to induce turbulence in the rotor downwash flowing across the outboard face in a direction from a top surface of the wing to a bottom surface of the wing;
- wherein the outboard face of the wingtip comprises a contoured curved shape extending from the top surface to the bottom surface to promote wingtip lift in response to the rotor downwash flowing across the outboard face in a direction from a top surface of the wing to a bottom surface of the wing.
2 more elements
Dependencies are inferred from the claim text.