Curled trailing edge airfoil

Details Curled trailing edge airfoil Curled trailing edge airfoil

1992-04-14

1994-06-07

Barefoot, Galen L.

Aeronautics and astronautics

Aircraft sustentation

Sustaining airfoils

B64C 310

Patent

active

053182499

ABSTRACT:
An improved trailing edge configuration for a transonic airfoil is disclosed. The upper and lower surfaces converge without diverging over the aft 40% of the airfoil chord, and the airfoil has significantly increasing downward curvature at the aft end. The absolute value of the negative slope of the camber typically increases by at least 50% over the aft 4% of the chord, usually increasing by a factor of about 2. The negative slope of the camber of the airfoil typically reaches at least about -0.25 at the trailing edge of the airfoil, and in preferred designs, the slope of the camber changes from about -0.175 to about -0.325 over the aft 4% of the chord.

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Barnes McCormick, Aerodynamics, Aeronautics and Flight Mechanics, 1979, Wiley Press, pp. 63-93.

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