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Theoretical characteristics of two-dimensional supersonic control surfaces

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The "Busemann second-order-approximiation theory" for the pressure distribution over a two-dimensional airfoil in supersonic flow was used to determine some of the aerodynamic characteristics of un...

The "Busemann second-order-approximiation theory" for the pressure distribution over a two-dimensional airfoil in supersonic flow was used to determine some of the aerodynamic characteristics of uncambered symmetrical parabolic and double-wedge airfoils with leading-edge and trailing edge flaps. The characteristics presented and discussed in this paper are: flap effectiveneess factor, rate of change of hinge-moment coefficient with flap deflection, rate of change of pitching-moment coefficient about the midchord with flap deflection, and the location of the center of pressure of the airfoil-flap combination.

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