| 单词 | drift-angle |
| 释义 | > as lemmasdrift-angle drift-angle n. (a) Naval Architecture the angle of leeway (see leeway n.); (b) Aeronautics (see quots. 1951, 1967). ΚΠ 1882 W. H. White Man. Naval Archit. (ed. 2) xiv. 621 The angle between this tangent and the keel-line, or ‘drift-angle’, (angle de dérive) as it is termed, gradually increases. 1906 E. L. Attwood War-ships (ed. 2) 237 At the point P, where OP is drawn perpendicular to the centre line of the ship, there is no drift angle, as the tangent to the circle through P is the centre line of the ship. 1935 C. G. Burge Compl. Bk. Aviation 264/1 Drift-angle sight, an instrument for determining the drift-angle. 1951 Gloss. Aeronaut. Terms (B.S.I.) iii. 6 Drift angle, the angle, at any instant, between the longitudinal axis of an aircraft and the track. 1967 Gloss. Terms Air-Cushion Vehicles (B.S.I.) 6 Drift angle, the angle, in the horizontal plane, between the longitudinal axis of an ACV and the instantaneous true direction of motion relative to the local meridian. < as lemmas |
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