CAP 413 - Page 34

CAP 413 Radiotelephony Manual
Chapter 1 Page 10
STANAG* Standing Agreement (M)
STAR* Standard Instrument Arrival
T
TA Traffic Advisory (see TCAS)
TAF* Terminal Aerodrome Forecast
TCAS* Traffic Alert and Collision Avoidance System (pronounced Tee-kas) (see
ACAS)
TMA Terminal Control Area
T-VASIS T Visual Approach Slope Indicator System (pronounced TEE-VASIS)
TWU Tactical Weapons Unit (M)
U
UAS Upper Airspace
UAS University Air Squadron (M)
UHF Ultra-High Frequency
UIR Upper Flight Information Region
USAF United States Air Force (M)
UTC Co-ordinated Universal Time
V
VASIS* Visual Approach Slope Indicator System (pronounced VASIS)
VDF Very High Frequency Direction-Finding Station
VFR Visual Flight Rules
VHF Very High Frequency (30 to 300 MHz)
VMC Visual Meteorological Conditions
VOLMET* Meteorological information for aircraft in flight
VOR VHF Omnidirectional Radio Range
VORTAC* VOR and TACAN combination
17 November 2011