avionics
433 abbreviations
Abbreviation | Meaning | |
---|---|---|
ROC | Rate of climb | |
ROD | Rate of descent | |
RPA | Remotely piloted aircraft (Unmanned aerial vehicle) | |
RPM | Revolutions per minute | |
RTE | Route | |
RVR | Runway visual range | |
RVSM | Reduced vertical separation minimum | |
RX | Receiver | |
SAT | Static air temperature | |
SATCOM | Satellite communication | |
SATNAV | Satellite navigation | |
SD | Secure digital | |
SELCAL | Selective calling | |
SID | Standard instrument departure | |
SIU | Satellite interface unit | |
SMS | Short Messaging Service | |
SNR | Signal-to-noise ratio | |
SPKR | Speaker | |
SQ or SQL | Squelch | |
SRS | Speed Reference System | |
SSCV/DR | Solid-state cockpit voice/data recorder | |
SSCVR | Solid-state cockpit voice recorder | |
SSFDR | Solid-state flight data recorder | |
SSR | Secondary surveillance radar | |
STAR | Standard terminal arrival route | |
STARS | Standard Terminal Automation Replacement System | |
STC | Supplemental Type Certificate | |
STCA | Short-Term Conflict Alert | |
STP | Standard temperature and pressure | |
SUA | Special use airspace | |
T/R | Transmitter receiver or transceiver | |
TA | Traffic advisory (see TCAS) | |
TACAN | Tactical air navigation system | |
Tach | Tachometer | |
TAD | Terrain awareness display | |
TAF | Terminal area forecast | |
TAS | True airspeed | |
TAT | True air temperature, or total air temperature | |
TAWS | Terrain awareness warning system | |
TBO | Time before overhaul, or time between overhaul | |
TCA | Throttle control assembly, or terminal control area | |
TCAS | Traffic collision avoidance system | |
TCF | Terrain clearance floor | |
TCN | TACAN | |
TCU | TACAN control unit | |
TDOP | Time dilution of precision | |
TDR | Transponder (in some cases) | |
TERPS | Terminal instrument procedures, or terminal en route procedures | |
TFR | Temporary flight restrictions | |
TFT | Thin-film transistor |