Flight test data obtained from a large swept-wing bomber airplane in flight through rough air at an altitude of 5,000 feet are analyzed to determine the effects of vertical translation and pitching motions on the angles of attack of the wing and tail. Power-spectral techniques are used to determine the contributions- of these motions to the angles of attack of the wing and tail at various frequencies, and the results are compared with the direct gust-induced angle of attack.nThe results indicate that the motions, particularly the pitching motions, significantly amplify the angles of attack of the wing and tail for the test airplane. The pitching-motion component increases the root-mean-square angle of attack of the wing by about 35 percent and the root-mean-square angle of attack of the tail by about 50 to 60 percent.
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