| 单词 | spiral stability |
| 释义 | > as lemmasspiral stability spiral stability n. Aeronautics the capactiy of an aeroplane not to enter a spiral while executing a banked turn, or to recover from a steeply-banked spiral path. ΘΚΠ society > travel > air or space travel > a means of conveyance through the air > aeroplane > qualities and parameters of aircraft > [noun] > spiral stability or instability spiral instability1914 spiral stability1947 spiral divergence1949 1947 C. F. Toms Introd. Aeronautics v. 222 The use of a certain amount of dihedral..is essential for both directional and spiral stability. 1978 M. Simons Model Aircraft Aerodynamics xi. 126 If the model is primarily a thermal soarer..effort should be concentrated on spiral stability. < as lemmas |
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