Patent
Pneumatic leading edge flap for an aircraft wing
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TLDR
In this article, an expandable pneumatic leading edge flap for an aircraft wing that increases the CL (coefficient of lift) thereof was proposed. But the design of the leading edge was not discussed.Abstract:
This invention comprises an expandable pneumatic leading edge flap for an aircraft wing that increases the CL (coefficient of lift) thereof. A thin flexible titanium membrane extends from the stagnation point of the leading edge flap rearwardly along the back surface of the flap to a roller assembly housed within the wing leading edge portion, and an inflatable bag housed within a suitable recess in the lower leading edge portion of the airfoil and enclosed by the leading edge flap when retracted. During high speed flight the bag is deflated and the membrane is stretched taunt so as to define a clean aerodynamic leading edge. When increased lift is desired, the bag is inflated causing the membrane to be unrolled to form an expanded leading edge flap for the wing.read more
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Kevin W. Beyer,Stephen J. Fox,Douglas S. Lacy,Paul T. Meredith,Clayton A. Prow,Seiya Sakurai,Stephen L. Wells +6 more
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Aircraft leading edge apparatuses and corresponding methods
TL;DR: In this article, an aircraft system includes an airfoil with a leading edge device that is movable among a retracted position, at least one first extended position, and a second extended position.
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Methods and high lift systems for making an aircraft wing more efficient for takeoffs and landings
TL;DR: In this paper, a highly efficient aircraft wing is formed by drooping the leading edge portion and extending a leading edge flap for takeoff, and by extending a multiplicity of leading edge flaps for landing.
Patent
Supporting element for aircraft
TL;DR: In this paper, a device for deforming the vertical section of a wing, along the leading edge of the aircraft's leading edge, along with the supporting elements, is described.