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Appendix
TAWS —
Terrain Awareness and
Warning System
TCAD
—
Traffic/Collision Avoidance
Device
TCAS —
Traffic Alert/Collision
Avoidance System
TER —
Terrain
TFR —
Temporary Flight Rules
TIS-A —
Traffic Information Services
- Addressed
TIS-B —
Traffic Information Service
- Broadcast
TRAF —
Traffic
TRANS —
Transmit
TRK —
Track (also Ground Track)
UAT —
Universal Access Transceiver
UNR —
Unrestricted
VFR —
Visual Flight Rules
VOL —
Volume
VOR —
VHF Omnidirectional Radio
Range
WB —
Warning Boxes
WX —
Weather
XPDR —
Transponder
Abbreviations