All official U.S. DoD military terms, and their definitions, beginning with the letter Y.
Currently showing all terms for your selected Letter Group of Y. You can always go back to the index to make another selection.
(*) 1. The rotation of an aircraft, ship, or missile about its vertical axis so as to cause the longitudinal axis of the aircraft, ship, or missile to deviate from the flight line or heading in its horizontal plane. 2. Angle between the longitudinal axis of a projectile at any moment and the tangent to the trajectory in the corresponding point of flight of the projectile.
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