Title: Aircraft wing drooping leading edge device

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Abstract: A drooping leading edge device is provided in which the leading edge structure that droops is pivotally mounted, by a single pivot inside the wing, upon the front spar structure of the wing and is of substantially constant shape. A gap which would otherwise open up between the upper skin of the main part of the wing and the upper skin of the leading edge structure, when the leading edge droops, is filled by an upper flexible skin section secured to the main part of the wing and extending forward first into contiguity with the rear edge of the upper skin of the leading edge structure and then inside said leading edge structure. At the underneath of the wing, a rear flexible portion of the lower skin of the leading edge device extends back to meet the forward edge of the lower skin of the main part of the wing. When the leading edge droops, the profile of the upper flexible skin section is controlled by links inside the structure which are hinged at their upper ends on the upper flexible skin section and at their lower ends on inner structure of the leading edge device.


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