equivalent tail wind

equivalent tail wind

[i′kwiv·ə·lənt ′tāl ‚wind]
(navigation)
A fictitious wind blowing along the track of an aircraft in the same direction as that of motion of the aircraft and of such speed that it would result in the same ground speed as that actually attained.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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