ACAS | Airborne Collision Avoidance System |
ACOL | Anti-collision light |
ADC | Air data computer |
ADELT | Automatic deployable Emergency Locator Transmitter |
ADF | Automatic direction finder |
AEO | All engines operating |
AFCS | Automatic Flight Control System |
AGL | Above ground level |
AHRS | Attitude Heading Reference System |
ALT | Altitude or Altitude hold |
ALT.A | Altitude acquire |
AMC | Aircraft Management Computer |
APCP | Autopilot control panel |
A.TRIM | Automatic trim system |
ATT | Attitude or Long term attitude hold |
BAT | Battery |
BKUP | Backup SAS |
BOT | Bottle |
CRHT, CR.HT | Cruise height |
DA | Decision Altitude |
DEG, DEGR | Degraded |
DG | Directional gyro |
DH | Decision height |
DISCH | Discharge |
DISCON | Disconnected |
DMAP | Digital Map System |
DME | Distance measuring equipment |
DSAS | Digital SAS |
DST | Distance |
DTD | Data Transfer Device |
DTK | Desired Track |
EFB | Electronic Flight Bag |
ELT | Emergency Locator Transmitter |
EMER | Emergency |
EMS | Emergency Medical Services |
EPU | External power unit |
FADEC | Full Authority Digital Engine Control |
FDS | Flight Display System |
FLI | First limit indicator |
FMS | Flight management system |
FND | Flight and Navigation Display |
FPA | Flight Path Angle |
GA | Go Around |
GEN | Generator |
GPS | Global positioning system |
GS | Ground speed |
GTC | Ground trajectory control |
GTC.H | Ground trajectory control with hover mode |
GTN | GARMIN GTN 750 |
HAT | Height Above Terrain |
HDG | Heading |
HEMS | Helicopter Emergency Medical Services |
HIGE | Hover in ground effect |
HISL | High Intensity Search Light |
HMD | Helmet Mounted Display |
HOGE | Hover out of ground effect |
HTAWS | Helicopter Terrain Awareness and Warning System |
IAS | Indicated airspeed |
IBF | Inlet Barrier Filter |
IESI | Integrated Electronic Standby Instrument/Indicator |
IMA | Integrated Modular Avionics |
LAVCS | Light Helicopter Active Vibration Control System |
LDG | Landing (Landing Light) |
LNAV | Lateral Navigation approach (nonprecision) |
LNAV+V | Non–precision LNAV approach with vertical guidance |
LNAV/VNAV | Lateral Navigation and Vertical Navigation approach |
LOC | Localizer |
LOW ALT | Low altitude |
LP | Localizer Performance without vertical guidance |
LP+V | Localizer Performance with advisory vertical guidance |
LPV | Localizer Performance with vertical guidance |
L/VNAV | Lateral Navigation and Vertical Navigation approach |
LSK | Line select key |
MFD | Multifunction display |
MGB | Main gearbox |
MISC | Miscellaneous |
MSG | Message |
MSTR | Master |
MTOW | Maximum Takeoff weight |
N1 | Gas generator speed |
N2 | Power turbine speed |
NAVD | Navigation display |
OAT | Outside air temperature |
OBS | Omni Bearing Selector |
OEI | One engine inoperative |
OGE | Out of ground effect |
OVHT | Overheat |
PAX | Passenger |
pb | Push Button |
QTY | Quantity |
RA | Radar altitude |
RNAV | Area Navigation |
SAS | Stability augmentation system |
SBAS | Satellite Based Augmentation System |
SEMA | Smart electro-mechanical actuator |
SL, S/L | Search Light |
SK | Select Key or Soft Key |
STBY | Standby |
SUSP | Suspended |
SVS | Synthetic Vision System |
SYS, SYST | System |
TAS | True airspeed |
TGB | Tail gearbox |
TOP | Takeoff power |
TOT | Turbine outlet temperature |
TRQ | Torque |
TRK | Track |
V.APP | Vertical approach |
VENT | Ventilation |
VMS | Vehicle Management System |
VNE | Never-exceed speed |
VNE power off | Maximum speed in autorotation |
VOR | VHF omnidirectional radio ranging |
VRS | Vortex Ring State |
VS | Vertical speed |
VTOSS | Takeoff safety speed |
VY | Best rate-of-climb speed |
XFER | Fuel transfer pump |