433 abbreviations
Abbreviation Meaning
TGT Turbine gas temperature, or target
THDG True heading
TIS Traffic information service
TK Track angle
TKE Track-angle error
TLA Thrust Lever Angle
TLA Three-letter acronym
TO/GA Takeoff/Go-around switch, Takeoff/go-around thrust
TOD Top of Descent point
TOGA Takeoff/Go-around switch, Takeoff/go-around thrust
TOT Turbine outlet temperature
TR Transmitter receiver or transceiver
TRACON Terminal radar approach control
TRANS Transmit, Transmission, or Transition[disambiguation needed]
TRK Track
TRP Mode S transponder
TTR TCAS II transmitter/receiver
TTS Time to station
TVE Total vertical error
TWDL Two-way data link, or terminal weather data link
TWDR Terminal Doppler Weather Radar
TWIP Terminal weather information for pilots
TWR Terminal weather radar
TX Transmit
UART Universal asynchronous receiver transmitter
UAV Unmanned aerial vehicle
UHF Ultra-high frequency
ULB Underwater locator beacon
USB Universal Serial Bus
UTC Universal Time Coordinate
V Volts or voltage
V/L VOR/Localizer
V/NAV Vertical navigation
V/R Voltage regulator
V/REF Reference velocity
V/S Vertical speed
V/TRK Vertical track
VASI Visual approach slope indicator
VDL VHF Data Link
VDR VHF digital radio
VFO Variable frequency oscillator
VFR Visual flight rules
VG/DG Vertical gyroscope/directional gyroscope
VGA Video Graphics Array
VHF Very high frequency
VMC Visual meteorological conditions or minimum control speed with critical engine out
VNE Never exceed speed
VNO Maximum structural cruising speed
VNR VHF navigation receiver
VOR VHF omnidirectional range and ranging