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Three-position variable camber krueger leading edge flap
Three-position variable camber krueger leading edge flap
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机译：三位置可变弧度克鲁格前缘襟翼
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摘要
A variable camber flap assembly having first and second operative positions. A rotatable drive arm (36) powers first and second (30,32) linkage subassemblies. The first linkage subassembly (32) extends the flap panel (20) in a downward and forward direction to its operative positions, and also rotates a hinged bullnose (22) outwardly so as to foreshorten the distance between the leading (26) and trailing (24) edges of the flexible flap panel (20), increasing the camber of the flap. The second linkage subassembly (30) cooperates with the first to angularly orientate the flap panel in its operative positions, and also positions the trailing edge (24) of the panel relative to the leading edge (16) of the airfoil. In the first operative position the trailing edge of the panel is spaced forwardly from the leading edge of the airfoil so as to form an aerodynamic slot; in the second operative position the flap panel is drawn rearwardly so that its trailing edge forms an aerodynamic seal with the airfoil.
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