Some Effects of Frequency on the Contribution of a Vertical Tail to the Free Aerodynamic Damping of a Model Oscillating in Yaw
John D. Bird · Lewis R. Fisher · Sadie M. Hubbard
Jan 1952 · National Advisory Committee for Aeronautics
eBook
39
Pages
About this eBook
The damping in vaw and the directional stability of a model oscillating in yaw were measured tail-off and tail-on and compared with the values obtained by theoretical consideration of the unsteady lift associated with an oscillating vertical tail. A range of low frequencies comparable to those of the lateral motions of airplanes was covered. The analysis includes the effects of vertical-tail aspect ratio and the two-dimensional effects of compressibility.
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