Device for closing and opening in the leading edge of a wing

Details Device for closing and opening in the leading edge of a wing Device for closing and opening in the leading edge of a wing

1988-09-04

1989-11-14

Peters, Jr., Joseph F.

Aeronautics and astronautics

Aircraft sustentation

Sustaining airfoils

244130, B64C 350

Patent

active

048801895

ABSTRACT:
A shutter arrangement for closing an aperture formed in the fixed leading edge of an aircraft wing when a track supported slat moves from a stowed, cruise configuration in which it lies adjacent the fixed wing portion to a high light configuration in which it is spaced from the wing to define a slot. The aperture, which exist to accommodate the slat to track attachment `knuckles`, may induce undesirable flow disturbance in the slot formed between the slat and the fixed leading edge. The present invention provides a hinged retractable shutter for closing off the aperture when the slat is deployed. In the preferred arrangement the shutter is of multi-panelled hinged configuration and, in one described arrangement is of one-piece moulded composite rubber construction.

REFERENCES:
patent: 4042191 (1977-08-01), Johnson
patent: 4131252 (1978-12-01), Dean et al.
patent: 4360176 (1982-11-01), Brown
patent: 4640477 (1987-02-01), Pace
patent: 4753402 (1988-06-01), Cole

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