Aviation Abbreviation Terms
A B C
D
E
F
G
H
I J K L M N O P Q R S T U V W X Y
Z
A
ABM = = = = Abeam
ACFT = = = = Aircraft
ACT = = = = APPROACH CLEARANCE TIME
ADF = = = = AUTOMATIC DIRECTION FINDING
ADI = = = = ATTITUDE DIRECTOR INDICATOR
AFD = = = = Airport Facility Directory
AGL = = = = ABOVE GROUND LEVEL
ARP = = = = Airport reference point
AFIS = = = = Aerodrome flight information service
A/G = = = = Air / ground
ALP = = = = Airport Layout Plan
AGA = = = = Air and ground aids
AGL = = = = Above ground level
AIP = = = = Aeronautical information publication
AIS = = = = Aeronautical information service
APP = = = = Approach
ASR = = = = AIRCRAFT SURVEILLANCE RADAR
ATC = = = = AIR TRAFIC CONTROL
ATA = = = = Actual time of arrival
ATC = = = = Air traffic control
ATD = = = = Actual time of departure
ATIS = = = = Automatic terminal information service
ATS = = = = Air traffic service
ATZ = = = = Air traffic zone
AWY = = = = Airway BCN Beacon
B
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C
C/A = = = = COURSE ACQUISITION
CAS = = = = CALIBRATED AIRSPEED
CAT = = = Clear air turbulence
CAVOK = = = Ceiling and visibility OKCI = = = = COURSE INDICATOR
COM = = = Communications
CPT = = = = Cockpit Procedure Trainer
CTA = = = Controlled terminal area (exists no longer in Belgium)
CTR = = = Controlled terminal region
D
D = = = = + number = Danger area
DCT = = = = Direct
DG = = = = DIRECTIONAL GYRO
DH = = = = DECISION HEIGHT
DME = = = = DISTANCE MEASURING EQUIPEMENT
DR = = = = DEAD RECKONING
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E
EFC = = = = EXPECT FURTHER CLEARANCE
ELEV = = = = Elevation
EST = = = = Estimated time
ETA = = = = Estimated time of arrival
ETD = = = = Estimated time of departure
FAL = = = = Facilities and landing fees
FIC = = = = Flight information center
FIR = = = = Flight information region
FIS = = = = Flight information service
FL = = = = Flight level
ETA = = = = ESTIMATED TIME OF ARRIVAL
ETE = = = = ESTIMATED TIME ENROUTE
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F
FAF = = = = FINAL APPROACH FIX
FAS = = = = FINAL APPROACH SPEED
FL = = = = FLIGHT LEVEL
FLIP = = = = FLIGHT INFORMATION PUBLICATION
FOV = = = = FIELD OF VIEW
FPM = = = = FEET PER MINUTE
FSS = = = = Flight Service Station
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G
G / A = = = = Ground air
GCA = = = = GROUND CONTROLLED APPROACH
GEN = = = = Generalities
GMT = = = Greenwich mean time (Zulu)
GND = = = Ground
GPI = = = = GLIDE PATH INTERCEPTION POINT
GPS = = = = GLOBAL POSITIONING SYSTEM
GS = = = = GROUND SPEED
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H
H 24 = = = 24 hours
HF = = = High frequency
HJ = = = Hours de jour (French, witch means DAY HOURS)
HN = = = Heures de nuit (French, witch means NIGHT HOURS)
HSI = = = = HORIZONTAL SITUATION INDICATOR
HR = = = Hour
HUD = = = = HEADS-UP DISPLAY
Hz = = = = HERTZ -CYCLES PER SECOND
HZ = = = Hertz (haze)
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I
IAF = = = = INITIAL APPROACH FIX
IAP = = = = INSTRUMENT APPROACH PROCEDURE
IAS = = = = INDICATED AIRSPEED
ICAO = = = = INTERNATIONAL CIVIL AVIATION ORGANIZATION
IFF = = = = IDENTIFICATION FRIEND OR FOE
IFR = = = = INSTRUMENT FLGHT RULES
ILS = = = = INSTRUMENT LANDING SYSTEM
IM = = = = INNER MARKER
IMC = = = = INSTRUMENT METEOROLOGICAL CONDITIONS
INOP = = = Inoperative
ITO = = = = INSTRUMENT TAKEOFF
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K
KHZ = = = = KILOHERTZ
KTS = = = = KNOTS
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L
LF = = = Low frequency
LOC = = = = LOCALIZER
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M
MAP = = = Map
MAP = = = = MISSED APPROACH POINT
MCA = = = = MINIMUM CROSSING ALTITUDE
MDA = = = = MINIMUM DESCENT ALTITUDE
MEA = = = = MINIMUM ENROUTE ALTITUDE
METAR = = = Meteorological actual report
MF = = = Medium frequency
mhz = = = = MILLIHERTZ
Mhz = = = = MEGAHERTZ
MM = = = = MIDDLE MARKER
MSL = = = = MEAN SEA LEVEL
MVA = = = = MINIMUM VECTORING ALTITUDE
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N
NDB = = = Non directional beacon
NM = = = Nautical miles
NOSIS = = = No significant changes
NOTAM = = = Note to airman
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O
OBST = = = Obstacle
OM = = = = OUTER MARKER
OR = = = On request
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P
P = = = +number = prohibited
PA = = = Pressure altitude = QNE = FL
PAC = = = = PILOT AT CONTROL
PAR = = = = PRECISION APPROACH RADAR
PNAC = = = =PILOT NOT AT CONTROL
POB = = = Persons on board
PPR = = = Prior permission requested
PPO = = = Prior permission only
PT = = = = PROCEDURE TURN
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Q
QR = = = Quick reaction - (Military airport)
QBA = = = Horizontal visibility
QBB = = = Cloud cover above airport ground
QDM = = = Magnetic course by calm weather
QDR = = = Magnetic bearing from...
QFE = = = Atmospheric pressure on the airfield
QFU = = = Magnetic direction of a track
QNH = = = Altimeter set on ground to read altitude of the airfield height
above mean sea level
QNT = = = Highest windblast (gust)
QGO = = = Closed
QNE = = = Indicated altitude (altimetrisch) compared to 1013,2 mb
QUNAZ = = = Airdrop in progress
QUDIN = = = Danger zone is active
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R
R = = = = + number = restricted
RAC = = = = Regulations and control
RADAR = = = = RADIO DETECTING AND RANGING
R/C = = = = RATE OF CLIMB
RDF = = = = RADIO DIRECTION FINDING
REIL = = = = RUNWAY END IDENTIFIER LIGHTS
RLW = = = = Airport authorities
RMI = = = = RADIO MAGNETIC INDICATOR
ROC = = = = REQUIRED OBSTACLE CLEARANCE
RPI = = = = RUNWAY POINT OF INTERCEPT
RPL = = = = Repetitive flight plan
RPM = = = = REVOLUTIONS PER MINUTE
RWY = = = = Runway
RVR = = = = RUNWAY VISUAL RANGE
RWR = = = = RADAR WARNING RECEIVER
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S
SAR = = = = Search and rescue
SID = = = = STANDARD INSTRUMENT DEPARTURE
SIF = = = = SELECTED IDENTIFICATION FEATURE
SIGMET = = = = Significant meteorological changes
SNOWTAM = = = = Note to airman about snow or ice or melting
SR = = = = Sunrise
SS = = = = Sunset
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T
TACAN = = = = TACTICAL AIR NAVIGATION
TAF = = = = Terminal area forecast
TAS = = = = TRUE AIRSPEED
TEMPO = = = = Temporality
TERPS = = = = TERMINAL INSTRUMENT PROCEDURES
TMA = = = = Terminal area
TMN = = = = TRUE MACH NUMBER
TWR = = = = Tower
TWY = = = = Taxiway
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U
UAC = = = = Upper area control = Euro control (FL
200)
UAR = = = = Upper area route
UFN = = = = Until further notice
UHF = = = = Ultra high frequency
UIC = = = = Upper information center
UIR = = = = Upper information region
U / S = = = = Useless
UTA = = = = Upper traffic area
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V
VAR = = = = Variation
VASI = = = = VISUAL APPROACH SLOPE INDICATOR
VDP = = = = VISUAL DESCENT POINT
VFR = = = = VISUAL FLIGHT RULES
VHF = = = = VERY HIGH FREQUENCY
VMC = = = = VISUAL METEOROLOGICAL CONDITIONS
VOR = = = = VHF OMNIDIRECTIONAL RANGE
VORTAC = = = = VHF OMNIDIRECTION RANGE/TACTICAL AIR NAVIGATION
VSI = = = = VERTICAL SPEED INDICATOR
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W
WIP = = = = Work in progress
WX = = = = Weather
X
Y
Z
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