Aeronautics. A descent (or, rarely, a climb) made by an aircraft in the form of a helix; a continuous banking turn accompanying a descent or ascent.
| 单词 | θ207187 |
| 释义 | society > travel > air or space travel > specific movements or positions of aircraft > [noun] > spiral (2) spiral1910 Aeronautics. A descent (or, rarely, a climb) made by an aircraft in the form of a helix; a continuous banking turn accompanying a descent or ascent. death spiral1912 Originally North American. The downward spiral course of an out-of-control aeroplane (before it crashes); (also) an aerobatic manoeuvre simulating… |
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