ACAS /TCAS |
Airborne or Traffic Collision Avoidance System. These will have a further descriptor of 'RA' - Resolution Advisory or 'TA' - Traffic Advisory |
ADS-B/C |
Automatic Dependent Surveillance - Broadcast / Contract |
AGL |
Above Ground Level |
AHRS |
Attitude & Heading Reference System |
AMSL |
Above Mean Sea Level |
APU |
Auxiliary Power Unit |
ATC |
Air Traffic Control |
ATIS |
Automatic Terminal Information Service |
CPDLC |
Controller Pilot Data Link Communications |
CTA |
Control Area |
CTAF |
Common Traffic Advisory Frequency |
CTR |
Control Zone |
DME |
Distance Measuring Equipment |
ECAM |
Electronic Centralised Aircraft Monitor |
E/GPWS |
Enhanced / Ground Proximity Warning System |
EICAS |
Engine Indicating and Crew Alerting System |
ELT |
Emergency Locator Transmitter (sometimes referred to as an ELB - Emergency Locator Beacon or PLB - Personal Locator beacon) |
FDR |
Flight data recorder |
FL |
Flight Level |
FMS |
Flight Management System (covers FMCG & FMC) |
ft |
Feet |
GPS |
Global Positioning System |
GNSS |
Global Navigation Satellite System |
HF |
High Frequency |
IAS |
Indicated Air Speed |
IFR |
Instrument Flight Rules |
ILS |
Instrument Landing System |
IMC |
Instrument Meteorological Conditions |
IVA |
Independent Visual Approach |
kt |
Knots |
LAHSO |
Land and Hold Short Operations |
m |
Metres |
MAYDAY |
Radio transmission from flight crew indicating potential life threatening emergency |
MEL |
Minimum Equipment List |
MFD |
Multi-Function Display |
NDB |
Non Directional Beacon |
NM |
Nautical Mile |
NOTAM |
Notice to Airmen |
NVFR |
Night Visual Flight Rules |
NVG |
Night Vision Goggles |
OCTA |
Outside Controlled Airspace |
PAL |
Pilot Activated Lighting |
PAN |
Radio transmission from flight crew indicating an uncertainty or alert |
PAPI |
Precision Approach Path Indicator |
PFD |
Primary Flight Display |
RNAV |
Area Navigation |
RNP |
Required Navigation Performance |
RPA/S |
Remotely Piloted Aircraft / System |
RPM |
Revolutions Per Minute |
RVSM |
Reduced Vertical Separation Minima |
SARTIME |
Latest expected arrival at destination as planned by flight crew |
SID |
Standard Instrument Departure |
STAR |
Standard Arrival Route |
STCA |
Short Term Conflict Alert |
TAAATS |
The Australian Advanced Air Traffic System |
TAF |
Terminal Area Forecast |
VFR |
Visual Flight Rules |
VHF |
Very High Frequency |
VMC |
Visual Meteorological Conditions |
VOR |
VHF Omni-directional Radio Range |