Low-speed longitudinal aerodynamic characteristics of slender wings.
ESDU 71006 presents the normal and axial force coefficients, the pitching moment coefficient and the position of the aerodynamic centre of uncambered untwisted pointed slender wings with unswept trailing-edges and of aspect ratio less than about 2. Also presented are the normal-force-curve slope and the centre of pressure position. The curves are based on an extensive series of tests on slender wings of thickness given by a value of the ratio of their frontal area to their planform area of 0.04. In the case of the normal force, axial force and normal-force-curve slope it is possible to make appropriate allowance for arbitrary thickness; for the other aerodynamic quantities indications of the trends are given. A rough guide to the effects of small amounts of trailing-edge sweep is also included.
A computer program of the method is provided as ESDUpac A7106.
|Data Item ESDU 71006|
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