triangle of velocities
triangle of velocities
[′trī‚aŋ·gəl əv və′läs·əd·ēz] (navigation)
The fundamental triangle associated with dead-reckoning, composed of the following vectors: heading and true airspeed, track and groundspeed, and wind speed and wind direction.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.