List of aviation, avionics, aerospace and aeronautical abbreviations

A glossary of abbreviations used in relation to aviation, in alphabetical order.

A

Abbreviation	Term
A/C	aircraft
ACAS	Airborne Collision Avoidance System
ACARS	Aircraft Communication and Addressing Reporting System
ACMS	Aircraft Condition Monitoring System
ACC	Active Clearance Control
AD	Airworthiness Directive
ADC	Air Data Computer
ADF	Automatic Direction Finder
ADI	Attitude Director lndicator
ADS	Automatic Dependent Surveillance
AFCS	Automatic Flight Control System
AFDS	Autopilot Flight Director System
A/D	aerodrome
agl	Above ground level
AHRS	Attitude Heading Reference System
AIP	Aeronautical Information Publication
ALS	Approach Lighting System
AMSL	Above Mean Sea Level
ANSP	Air Navigation Service Provider
AOA	Angle of Attack
AOC	Air Operator's Certificate
AOM	Airport/Aerodrome Operating Minima
APU	Auxiliary Power Unit
A/P	airplane (USA), aeroplane (ICAO)
ARINC	Aeronautical Radio Inc.
ARTCC	Air Route Traffic Control Centers
ASDA	Association for Scientific Development of Air Traffic Management in Europe
ASAS	Airborne Separation Assurance System
ASI	Airspeed Indicator
asl	Above sea level
ASM	Airspace management
ATC	Air Traffic Control
ATFM	Air Traffic Flow Management
ATIS	Automatic Terminal Information Service
ATM	Air Traffic Management
AT-One	Strategic Alliance between NLR and DLR on ATM research and development
ATPL	Authorised Transport Pilot Licence
ATS	Air Traffic Services

B

Abbreviation	Term
BC	Back Course

C

Abbreviation	Term
CAA	Civil Aviation Authority
CAS	Calibrated airspeed
CFIT	Controlled Flight Into Terrain
CG	Center of Gravity
CMV	Converted Meteorological Visibility
CPDLC	Controller Pilot Data Link Communications
CVR	Cockpit Voice Recorder	CTAF Common Traffic Advisory Frequency) D Abbreviation Term DA/H Decision Altitude / Height (rel. to THR) See Instrument Landing System DER Departure End of Runway DG Directional Gyro DME Distance Measuring Equipment DR Dead reckoning E Abbreviation Term EAS Equivalent airspeed ECAM Electronic Centralised Aircraft Monitor ECET End of civil evening twilight EICAS Engine Indicator and Crew Alert System E-LSA Experimental light-sport aircraft ELT Emergency Locator Transmitter EPR Engine Pressure Ratio ESA Emergency Safe Altitude EFIS Electronic Flight Instrument System F Abbreviation Term FADEC Full Authority Digital Engine Control FAF Final Approach Fix FANS Future Air Navigation System FAP Final Approach Point FEP Final End Point FDR Flight Data Recorder (also known as black box) FIR Flight Information Region FL Flight Level FMC Flight Management Computer (same as FMS) FMS Flight Management System FPL Filed Flight Plan FMC Flight Management Computer FSF Flight Safety Foundation FSS Flight Service Station G Abbreviation Term GLOC g-Induced Loss of Consciousness, where g is acceleration relevant to the acceleration caused by gravity GND Ground GP Glide Path GPS Global Positioning System GPWS Ground Proximity Warning System EGPWS Enhanced Ground Proximity Warning System GA Go-Around GS Glideslope GSE Ground Support Equipment H Abbreviation Term H Heavy HDG Heading HL Height Loss HPA Human Powered Aircraft HSI Horizontal Situation Indicator HUD Head-up display I Abbreviation Term IAF Initial Approach Fix IAS Indicated airspeed ICAO International Civil Aviation Organization IF Intermediate Approach Fix IFR Instrument Flight Rules ILS Instrument Landing System IMC Instrument Meteorological Conditions INS Inertial Navigation System IRS Inertial Reference System ISA International Standard Atmosphere L Abbreviation Term LCN Load Classification Number LCG Load Classification Group LHO Live Human Organs LLZ Localizer (ILS) LNAV Lateral Navigation LOFT Line Oriented Flight Training LM Land and Marine M Abbreviation Term MAP Missed Approach Point MATS Manual of Air Traffic Services MDA/H Minimum Descent Altitude/Height MEDEVAC Medical Evacuation MEF Maximum Elevation Figure MLS Microwave Landing System MM Middle Marker MOC Minimum Obstacle Clearance MP Manifoil Pressure MSA Minimum Safe Altitude/Minimum Sector Altitude MSL Mean Sea Level MTOW Maximum Take-Off Weight N Abbreviation Term NDB Non-Directional Beacon O Abbreviation Term OCA/H Obstacle Clearance Altitude/Height OM Outer Marker OBE Overcome By Events P Abbreviation Term PANS-OPS Procedures for Air Navigation Services - Aircraft Operations PAPI Precision Approach Path Indicator PAR Precision Approach Radar PDG Procedure Design Gradient PDAS Public Domain Aeronautical Software PET Point of Equal Time PFAF Precision Final Approach Fix PSR Point of Safe Return PSU Personal Service Unit Q Abbreviation Term QFE the Q-code for: Atmospheric pressure at a/d elevation (or at THR) QNH the Q-code for: Altimeter sub-scale setting to obtain elevation when on the ground, ie altitude above MSL R Abbreviation Term RA Radio Altitude RAS Rectified Air Speed RDH Reference Datum Height for ILS RNAV Area navigation RSR En-route Surveillance Radar RVR Runway Visual Range RVSM Reduced Vertical Separation Minimum RWY Runway S Abbreviation Term SIGMET Significant Meteorological Advisory SOC Start of Climb at Missed Approach SID Standard Instrument Departure SR Sunrise SS Sunset STAR Standard Terminal Arrival Route T Abbreviation Term TAA Terminal Arrival Area TACAN Tactical Air Navigation TAS True airspeed TAR Terminal Approach Radar TCAS Traffic Collision Avoidance System TCH Threshold Crossing Height TERPS Terminal Procedures THR Runway Threshold TOD Top of Descent TOW Take-off weight TP Turning Point at Missed Approach TRA Temporary Reserved Airspace TRACON Terminal Radar Approach Control TWR Tower U Abbreviation Term UAV Unmanned Air Vehicle UHF Ultra High Frequency UIR Upper Information Region UTC Universal Coordinated Time V Abbreviation Term VASI Visual Approach Slope Indicator VDP Visual Descent Point VFR Visual flight rules VHF Very High Frequency VNAV Vertical Navigation VOR VHF omnidirectional range V speeds Abbreviation Term Vfe Maximum flaps extended speed Vle Maximum landing gear extension speed Vlo Maximum landing gear operating speed Vmo Maximum operating speed Vne Never-exceed speed Vno Normal operating speed limit Vs stall speed W Abbreviation Term WOFW Weight-off-Wheels, indicates aircraft is off ground since lift off WONW Weight-on-Wheels, indicates aircraft is on ground since touch down X Abbreviation Term XMIT Transmit XPDR Transponder XPNDR Transponder Z Abbreviation Term Z Zulu Time (UTC) References Aerospace acronyms Terms and Glossary Aviada Terminaro, verkita de Gilbert R. LEDON, 286 pagxoj.