Wing/winglet configurations and methods for aircraft

Details Wing/winglet configurations and methods for aircraft Wing/winglet configurations and methods for aircraft

1991-08-02

1994-01-04

Huppert, Michael S.

Aeronautics and astronautics

Aircraft control

Vertical fins

244199, B64C 508

Patent

active

052753581

ABSTRACT:
A wing/winglet configuration, which basically comprises: (a) a wing having upper and lower wing surfaces, a wing leading edge, a wing trailing edge, and a wing tip; and (b) a winglet having upper and lower winglet surfaces, a winglet leading edge, a winglet trailing edge, and a winglet tip, where the winglet is mounted to the wing tip at a winglet/wing tip intersection and extends upwardly from the wing tip Aft portions of the upper wing surface and upper winglet surface are flattened near the winglet/wing tip intersection to substantially reduce flow separation near wing/winglet intersection.

REFERENCES:
patent: 2074201 (1937-03-01), Bechereau
patent: 3845918 (1974-11-01), White, Jr.
patent: 4017041 (1977-04-01), Nelson
patent: 4190219 (1980-02-01), Hackett
patent: 4205810 (1980-06-01), Ishimitsu
patent: 4240597 (1980-12-01), Ellis et al.
patent: 4245804 (1981-01-01), Ishimitsu et al.
patent: 4247063 (1981-01-01), Jenkins
patent: 4714215 (1987-12-01), Jupp et al.
Design & Analysis of Winglets for Military Aircraft, Boeing Commercial Airplane Company Technical Report AFFDL-TR 76-6 by Ishimitsu et al Feb. 1976.

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