(Otherwise the glider would be unstable.)Ĭ) We'll assume that the drag on the pilot's body is negligible, i.e. In general, the Center of Pressure of the aircraft as a whole moves forward as angle-of-attack is decreased, and moves backwards as angle-of-attack is increased. Note however that the Center of Pressure is not fixed. We are not asking what will happen to the glider after a disturbance.ī) This answer will address the question in terms of Center of Pressure, not Aerodynamic Center, which simplifies things because we don't have to worry about a pitching moment coefficient.
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