A/P |
Autopilot |
|
ABAS |
Aircraft-based Augmentation System |
|
ACARS |
Aircraft Communications Addressing and Reporting System |
|
ACAS |
Airborne Collision Avoidance System |
|
ACC |
Area Control Centre |
|
ACMS |
Aircraft Condition Monitoring System |
|
ACP |
Audio Control Panel |
|
ACRIM |
Active Cavity Radiometer Irradiance Monitor (EOS) |
|
ACS |
Audio Control System |
|
ADAHRS |
Air Data And Attitude Heading Reference System |
|
ADC |
Air Data Computer |
|
ADF |
Automatic Direction Finder |
|
ADI |
Attitude director indicator |
|
ADIRS |
Air Data Inertial Reference System |
|
ADIRU |
Air Data Inertial Reference Unit |
|
ADM |
Air Data Module |
|
ADS |
Air Data System |
|
ADS |
automatic dependent surveillance |
|
ADS-A |
Automatic Dependent Surveillance-Address |
|
ADS-B |
Automatic Dependent Surveillance-Broadcast |
|
AFCS |
Automatic Flight Control System |
|
AFD |
Autopilot Flight Director |
|
AFDC |
Autopilot Flight Director Computer |
|
AFDS |
Autopilot Flight Director System |
|
AFIS |
Airborne Flight Information System |
|
AFIS |
Automatic Flight Information Service |
|
AGACS |
Automatic Ground-Air Communications System |
|
AGC |
Automatic Gain Control |
|
AGDL |
Air-Ground Data Link |
|
AHC |
Attitude Heading Control |
|
AHRS |
Attitude and Heading Reference Systems |
|
AIDS |
Aircraft Integrated Data System |
|
AIXM |
Aeronautical Information Exchange Model |
|
ALC |
Automatic Level Control |
|
ALT |
Altitude |
|
ALT HOLD |
Altitude Hold Mode |
|
ALTS |
altitude select |
|
AMLCD |
Active-matrix liquid crystal display |
|
AMS |
Air Management System |
|
ANC |
Active Noise Cancellation |
|
ANN |
Annunciator |
|
ANR |
Active Noise Reduction |
|
ANT |
Antenna |
|
AOC |
Aeronautical Operational Control |
|
AOP |
Airport Operating Plan |
|
APC |
Auto Pilot Computer |
|
APM |
Aircraft Personality Module |
|
APS |
Auto-Pilot System |
|
APU |
Auxiliary Power Unit |
|
ARINC |
Aeronautical Radio Incorporated |
|
ASD |
Aircraft Situation Display |
|
ASDL |
Aeronautical Satellite Data Link |
|
ASR |
Airport Surveillance Radar |
|
asu |
Avionics Switching Unit |
|
AT |
Auto Throttle |
|
ATC |
Air traffic control |
|
ATCRBS |
Air Traffic Control Radar Beacon System |
|
ATCSS |
Air traffic control signalling system |
|
ATCT |
Airport Traffic Control Tower |
|
ATSU |
Air Traffic Services Unit |
|
AVIONICS |
Aviation Electronics |
|
B RNAV |
Basic area navigation |
|
BARO |
Barometric |
|
BCRS |
Back course |
|
BDI |
Bearing Distance Indicator |
|
BGAN |
Broadcast Global Area Network |
|
BITE |
Built-In Test Equipment |
|
CAI |
caution annunciator indicator |
|
CAT I |
Operational performance Category 1 |
|
CAT II |
Operational performance Category II |
|
CAT IIIa |
Operational performance Category IIIa |
|
CAT IIIb |
Operational performance Category IIIb |
|
CAT IIIc |
Operational performance Category IIIc |
|
CDA |
Continuous Descent Approach |
|
CDI |
Course Deviation Indicator |
|
CDTI |
Cockpit display of traffic information |
|
CFIT |
Controlled Flight into Terrain |
|
CNS |
Communication Navigation Surveillance |
|
CNS/ATM |
Communication Navigation Surveillance/Air Traffic Management |
|
CNSR |
Comet Nucleus Sample Return |
|
Codec |
Coder/decoder |
|
COM |
Communications Society |
|
com |
Communications, Optics and Materials |
|
CPDLC |
Controller–pilot data link communications |
|
CPS |
Cycles Per Second (now Hertz) |
|
CRT |
Cathode Ray Tube (type of TV) |
|
CTAF |
Common Traffic Advisory Frequency |
|
CV/DFDR |
Cockpit voice and digital flight data recorder |
|
CVR |
Cockpit Voice Recorder |
|
CWS |
Control Wheel Steering |
|
DA |
Drift Angle |
|
DA |
Decision Altitude |
|
DAPs |
Downlink of aircraft parameters |
|
DCDU |
Data link control and display unit |
|
DFMC |
Dual Frequency Multiple Constellation |
|
DG |
Directional Gyroscope |
|
DGPS |
Differential Global Positioning System |
|
DH |
Decision Height |
|
DLR |
Data link recorder |
|
DME |
Distance Measuring Equipment |
|
DNC |
Direct noise canceling |
|
DP |
Departure procedures |
|
DR |
Data Recorder |
|
DUAT |
Direct User Access Terminal |
|
DVE |
Degraded Visual Environment |
|
EADI |
Electronic Attitude Director Indicator |
|
ECU |
Engine Control Unit |
|
EEC |
Electronic Engine Control |
|
EFD |
Electronic Flight Display |
|
EFIS |
Electronic Flight Instrument System |
|
EGPWS |
Enhanced Ground-Proximity Warning System |
|
EGT |
Exhaust Gas Temperature |
|
EHS |
Enhanced Surveillance |
|
EHSI |
Electronic Horizontal Situation Indicator |
|
EICAS |
Engine indication crew alerting system |
|
ELT |
Emergency Locator Transmitter |
|
ENC |
Electronic Noise Canceling |
|
ENG |
Engine |
|
ENR |
Electronic Noise Reduction |
|
EPR |
Engine Pressure Ratio |
|
ETOP |
Extended-Range Twin-Engine Operation |
|
FAA |
Federal Aviation Administration |
|
FADEC |
Full Authority Digital Engine Control |
|
FAF |
Final Approach Fixes |
|
FANS |
Future Air Navigation System |
|
FAT |
Free Air Temperature |
|
FBW |
Fly-by-Wireless |
|
FCC |
Flight Control Computer |
|
FCS |
Flight Control System (Subsystem) |
|
FD |
Flight Director |
|
FDPS |
Flight plan Data Processing System |
|
FDRS |
Flight Data Recorder System |
|
FDU |
Flux Detector Unit |
|
FF |
Fuel Flow |
|
FG |
Flight Guidance |
|
FIS-B |
Flight Information Services - Broadcast |
|
IRS |
Inertial Reference System |
|
ISA |
International Standard Atmosphere |
|
ISEE |
International Sun-Earth Explorer |
|
ISP |
Integrated Switching Panel |
|
ITT |
Interstage Turbine Temperature |
|
IVSI |
Instantaneous Vertical Speed Indicator |
|
JTIDS |
Joint Tactical Information Distribution System (djay-tidz) |
|
KTAS |
Knots True Airspeed |
|
LAAS |
Local Area Augmentation System |
|
LADGPS |
Local area differential GPS |
|
LCD |
Liquid Crystal Display |
|
LDGPS |
local area differential global positioning satellite |
|
LED |
Light-Emitting Diode |
|
LMM |
Locator middle marker |
|
LOM |
Locator Outer Marker |
|
LORAN |
Long-Range Navigation |
|
LPR |
Low Pressure Rotor |
|
LPV |
Localizer Performance with Vertical Guidance |
|
LRO |
Lunar Reconnaissance Orbiter |
|
LRU |
Line-Replaceable Unit |
|
LX |
Lightning |
|
MAP |
Manifold Absolute Pressure |
|
MAPS |
Minimum Aviation Performance Standards |
|
MB |
Marker Beacon |
|
MCBF |
Mean cycles between failures |
|
MCDU |
Multi-purpose/Multi-function Control and Display Unit |
|
MDA |
Minimum Decent Altitude |
|
MEL |
Minimum Equipment List |
|
MER |
Mars Exploration Rover |
|
MF |
Medium Frequency |
|
MFD |
Multi-Function Display |
|
MFDS |
Multi-Function Display System |
|
MGS |
Mars Global Surveyor |
|
MIC |
Microphone |
|
MIDS |
Multifunctional Information Distribution System |
|
MILSPEC |
Military Specification |
|
MKP |
Multi-function Keypad |
|
MLS |
Microwave Landing System |
|
MM |
Middle Marker |
|
MMD |
moving map display |
|
MNPS |
[Minimmum navigation performance specifications] |
|
MO |
Mars Observer |
|
MOA |
Military operations area |
|
MOSArt |
Modular Open System Architecture |
|
MPL |
Mars Polar Lander |
|
MSA |
Minimum Safe Altitude |
|
MSG |
Message |
|
MSP |
Modes S-Specific Protocol |
|
MSSS |
Mode S-Specific Services |
|
MTBF |
Mean Time Before Failure |
|
MTBUR |
Mean time between unscheduled removals |
|
MTTF |
Mean Time To Failure |
|
NAS |
National Airspace System |
|
NAVAID |
Navigational Aid |
|
NAVCOMM |
Navigation and communications equipment or receiver |
|
NAVSTAR-GPS |
NAVigation Satellite Timing And Ranging (The formal name for the space-borne or satellite navigation system) |
|
NCATT |
National Center for Aircraft Technician Training |
|
ND |
Navigation Display |
|
NDB |
Non-directional radio beacon |
|
NEAP |
Near Earth Asteroid Prospector |
|
NFF |
No Fault Found |
|
NM |
Nautical Mile |
|
NMi |
Nautical Mile |
|
NORDO |
No-Radio |
|
NOTAM |
Notice to Airmen |
|
NPA |
Non-Precision Approach |
|
NVD |
Night Vision Device |
|
OAT |
Outside Air Temperature |
|
OBS |
omnibearing selector |
|
OCC |
Operations control center |
|
OEW |
Operating Empty Weight |
|
OM |
Outer Marker (ILS) |
|
OWE |
Operating Weight Empty |
|
OWE/OEW |
Operating Weight Empty/Operating Empty Weight |
|
P-Code |
GPS precision code |
|
P-RNAV |
Precision Area Navigation |
|
PAL |
Pilot Activated Lighting |
|
PAPI |
Precision Approach Path Indicator (aviation) |
|
PAR |
Precision Approach Radar |
|
PCL |
Pilot Controlled Lighting |
|
PD |
Profile Descent |
|
PDOP |
Position Dilution of Precision |
|
PFD |
Primary Flight Display |
|
PFD |
Primary Flight Director |
|
PMG |
Permanent Magnet Generator |
|
PND |
Primary Navigation Display (aviation) |
|
PNR |
Passive Noise Reduction |
|
POF |
Phase of Flight |
|
POS |
Position |
|
PRA |
Pre-Recorded Announcement |
|
PSR |
Primary Surveillance Radar |
|
PSU |
Passenger Service Unit |
|
PVO |
Pioneer Venus Orbiter |
|
QAR |
Quick Access Recorder |
|
QNH |
Barometric Pressure Adjusted To Sea Level |
|
QRH |
Quick Reference Handbook |
|
R-NAV |
Area navigation |
|
RA |
Resolution Advisory |
|
RAI |
Radio Altimeter Indicator |
|
RAIM |
Remote Autonomous Integrity Monitoring |
|
RALT |
Radar Altimeter |
|
RALT |
Radio Altimeter |
|
RAT |
Reliability Assessment Testtmtram Air Turbine |
|
RCR |
Reverse Current Relay |
|
RCVR |
Receiver |
|
RDR |
Radar |
|
RDR |
Radar Data Recorder |
|
RDR |
Radar Departure Route |
|
REIL |
Runway end identifier lights |
|
REL |
Relative |
|
REL |
Relative Exposure Limit |
|
RF |
Radio Frequency |
|
RFI |
Radio Frequency Interference |
|
RHSM |
Reduced horizontal separation minimal |
|
RLG |
Ring Laser Gyroscope |
|
RLY |
Relay |
|
RMI |
Radio Magnetic Indicator |
|
RNG |
Range |
|
RNP |
Required Navigation Performance |
|
ROC |
Rate of Climb |
|
ROD |
Rate Of Descent |
|
RPM |
Revolutions Per Minute, (Rotations Per Minute) |
|
RPM |
Resale Price Maintenance. The UK Net Book Agreement, as was. Means by which retail prices are controlled by primary suppliers. (Alternatively, Revolutions Per Minute, as in engine speed and 78, 33 and 45 records. In years to come how many people will know |
|
RTE |
Route |
|
RVR |
Runway Visual Range |
|
RVSM |
Reduced Vertical Separation Minimum |
|
RX |
Receiver |
|
SAR |
Smart ACMS Recorder |
|
SAR |
Search And Rescue |
|
SAT |
Static Air Temperature |
|
satcom |
Satellite Communication |
|
SATNAV |
Satellite Navigation |
|
SD |
Secure Digital |
|
SDF |
Simplified Directional Facility |
|
SELCAL |
Selective Calling System |
|
SID |
Standard Instrument Departure |
|
SIU |
Satellite Interface Unit |
|
SMS |
Short Messaging Service |
|
SNR |
Signal-to-Noise Ratio |
|
SPKR |
Speaker |
|
SPS |
Solar Power Satellite |
|
sq |
Squelch |
|
SQL |
Squelch |
|
SRS |
Speed Reference System |
|
SSCV |
Solid-State Cockpit Voice |
|
SSCV/DR |
Solid-state cockpit voice/data recorder |
|
SSCVR |
Solid-State Cockpit Voice Recorder |
|
SSFDR |
Solid-State Flight Data Recorder |
|
SSP |
Surface Science Packages |
|
SSR |
secondary surveillance radar (ICAO/FAA) |
|
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 (0° and 1 atm) |
|
SUA |
Special-Use Airspace |
|
T/R |
Transceiver |
|
T/R |
Transmitter/Receiver |
|
T/R |
Thrust Reverser |
|
TA |
Traffic Advisory |
|
TACH |
Tachometer |
|
TAD |
Terrain Awareness Display |
|
TAF |
Terminal Area Forecast |
|
TAS |
True Airspeed |
|
tat |
True Air Temperature |
|
TAT |
Total Air Temperature |
|
TAWS |
Terrain Awareness Warning System |
|
TBO |
Time Between Overhaul |
|
TBO |
Time Before Overhaul |
|
TCA |
Terminal Control Area |
|
TCA |
Throttle Control Assembly |
|
TCAS |
Traffic Collision Avoidance System |
|
TCF |
Terrain Clearance Floor |
|
TCN |
Tacan |
|
TCU |
TACAN control unit |
|
TDOP |
Time Dilution of Precision |
|
TDR |
Transponder |
|
TERPS |
terminal en route procedures |
|
TERPS |
Terminal Instrument Procedures |
|
TGT |
Turbine Gas Temperature |
|
TGT |
Turbine Gas Target |
|
THDG |
True Heading |
|
TIMED |
Thermosphere Ionosphere Mesosphere Energetics and Dynamics |
|
TIS |
Traffic Information Service |
|
tk |
Track Angle |
|
TKE |
TrackAngle Error |
|
TLA |
Thrust Lever Angle |
|
TO/GA |
Takeoff/Go-Around |
|
TOGA |
Takeoff/Go-Around |
|
TOT |
Turbine Outlet Temperature |
|
TR |
Transceiver |
|
TR |
Transmitter/Receiver |
|
TRACON |
Terminal Radar Approach Control |
|
Trans |
Transmit |
|
tts |
Time To Station |
|
TVE |
Total Vertical Error |
|
TWDL |
Two-Way Data Link |
|
TWDL |
Terminal Weather Data Link |
|
TWDR |
Terminal Doppler Weather Radar |
|
TWIP |
Terminal Weather Information for Pilots |
|
TWR |
Terminal weather radar |
|
TX |
Transmit |
|
UARS |
Upper Atmosphere Research Satellite (NASA) |
|
uart |
Universal Asynchronous Receiver Transmitters |
|
UAV |
Unmanned Aerial Vehicle |
|
UHF |
Ultrahigh Frequency |
|
ULB |
Underwater Locator Beacon |
|
USB |
Universal Serial Bus |
|
utc |
Universal Time Coordinate |
|
V |
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 Oscillators |
|
VG |
Vertical Gyroscope |
|
VG/DG |
Vertical gyroscope/directional gyroscope |
|
VGA |
Video Graphics Array |
|
VHF |
Very High Frequency |
|
VMC |
visual meteorological conditions |
|
VNE |
Never exceed speed |
|
VNO |
Maximum structural cruising speed |
|
Vnr |
Vhf Navigation Receiver |
|
VOR |
VHF Omnidirectional Range And Ranging |
|
VOR/DME |
VOR With Distance Measuring Equipment |
|
VOR/MB |
VOR marker beacon |
|
VORTAC |
VOR and TACAN combination |
|
VOX |
Voice transmission |
|
VPA |
Vertical Path Approach |
|
VPATH |
Vertical Path |
|
VSI |
Vertical Speed Indicator |
|
VSM |
Vertical separation limit |
|
Vso |
stall speed in landing configuration |
|
VSWR |
Voltage Standing-Wave Ratio |
|
VX |
Speed for best angle of climb |
|
VY |
Speed for best rate of climb |
|
WAAS |
Wide Area Augmentation System |
|
WINDR |
Wind Direction |
|
WMA |
WXR waveguide adapter |
|
WMI |
WXR indicator mount |
|
WMS |
Wide-Area Master Station |
|
WMSC |
Weather Message Switching Center |
|
WMSCR |
Weather Message Switching Center Replacement |
|
WPT |
Waypoint |
|
WRT |
WXR receiver transmitter |
|
WX |
Weather |
|
Wypt |
Waypoint Financial Corp. |
|
WYPT |
Waypoint |
|
XCVR |
Transceiver |
|
Xfr |
Transfer |
|
XMIT |
Transmit |
|
XMSN |
Transmission |
|
XMTR |
Transmitter |
|
xpdr |
Transponder |
|
XTK |
Crosstrack |
|
YD |
Yaw Damper |
|