Pilot/Controller Glossary

c. Severe- Causes large, abrupt changes in altitude and or attitude. It usually causes large variations in
indicated airspeed. Aircraft may be momentarily out of control.
d. Extreme- The aircraft is violently tossed about and is practically impossible to control. It may cause
structural damage.
(See CHOP.)
(Refer to AIM.)

TURN ANTICIPATION- (maneuver anticipation).
TVOR-
(See TERMINAL-VERY HIGH FREQUENCY OMNIDIRECTIONAL RANGE STATION.)

TWO-WAY RADIO COMMUNICATIONS FAILURE-
(See LOST COMMUNICATIONS.)