Aeronautics and astronautics – Composite aircraft – Trains
Reexamination Certificate
2005-06-14
2005-06-14
Carone, Michael J. (Department: 3641)
Aeronautics and astronautics
Composite aircraft
Trains
C244S03500A, C244S216000, C244S211000
Reexamination Certificate
active
06905092
ABSTRACT:
An airfoil having a fore airfoil element, an aft airfoil element, and a slot region in between them. These elements induce laminar flow over substantially all of the fore airfoil element and also provide for laminar flow in at least a portion of the slot region. The method of the invention is one for inducing natural laminar flow over an airfoil. In the method, a fore airfoil element, having a leading and trailing edge, and an aft airfoil element define a slot region. Natural laminar flow is induced over substantially all of the fore airfoil element, by inducing the pressures on both surfaces of the fore airfoil element to decrease to a location proximate the trailing edge of the fore airfoil element using pressures created by the aft airfoil element.
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Airfoils, Incorporated
Finnegan Henderson Farabow Garrett & Dunner
Semunegus Lulit
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