Aviation Abbreviations# Flashcards
AC
Advisory Circular
A/FD
Airport/Facility Directory
AC
Alternating Current
AC (Weather)
Convective Outlook
ADF
Automatic Direction Finder
ADIZ
Air Defense Identification Zone
ADM
Aeronautical Decision Making
AFM
Aircraft Flight Manual
AFSS
Automated Flight Service Station
AGL
Above Ground Level
AIM
Aeronautical Information Manual
AIRMET
Airman’s Meteorological Information
ALS
Approach Light System
ARSR
Air Route Surveillance Radar
ARTCC
Air Route Traffic Control Center
ARTS
Automated Radar Terminal System
ASOS
Automated Surface Observing System
ASR
Airport Surveillance Radar
ATA
Actual Time of Arrival
ATC
Air Traffic Control
ATCRBS
ATC Radar Beacon System
ATD
Actual Time of Departure
ATE
Actual Time Enroute
ATIS
Automatic Terminal Information system
ATP
Airline Transport Pilot
AWOS
Automated Weather Observing System
AWW
Alert Severe Weather Watch
BFO
Beat Frequency Oscillator
BHP
Brake Horse Power
CAP
Civil Air Patrol
CAS
Calibrated Airspeed
CAT
Clear Air Turbulence
CDI
Course Deviation Indicator
CFI
Certified Flight Instructor
CG
Center of Gravity
CFR
Code of Federal Regulations
CL
Coefficient of Lift
CO
Carbon Monoxide
CO2
Carbon Dioxide
CTAF
Common Traffic Advisory Frequency
CRM
Crew Resource Management
CW
Continuous Wave
CWA
Center Weather Advisory
DA
Density Altitude
DC
Direct Current
DF
Direction Finder
DG
Directional Gyro
DME
Distance Measuring Equipment
DUATS
Direct User Access Terminal System
DVFR
Defense Visual Flight Rules
EFAS
Enroute Flight Advisory Service
ELT
Emergency Locator Transmitter
ETA
Estimated Time of Arrival
ETD
Estimated Time of Departure
ETE
Estimated Time Enroute
f.p.m.
Feet Per Minute
FA
Aviation Area Forecast
FAA
Federal Aviation Administration
FARs
Federal Aviation Regulations
FBO
Fixed Base Operator
FCC
Federal Communications Commission
FD
Winds and Temperatures Aloft Forecast
FDC
Flight Data Center
FL
Flight Level
FM
Frequency Modulation
FSDO
Flight Standards District Office
FSS
Flight Service Station
g.p.h.
Gallons Per Hour
GPS
Global Positioning System
GS
Groundspeed
HF
High Frequency
HIRLs
High Intensity Runway Lights
HIWAS
Hazardous In-flight Weather Advisory Service
hPa
Hectopascal
HSI
Horizontal Situation Indicator
HVOR
High Altitude VOR
Hz
Hertz
IAS
Indicated Airspeed
ICAO
International Civil Aviation Organization
IFR
Instrument Flight Rules
ILS
Instrument Landing System
IMC
Instrument Meteorological Conditions
in. Hg.
Inches of Mercury
INS
Inertial Navigation System
IOAT
Indicated Outside Air Temperature
IR
IFR Military Training Route
ISA
International Standard Atmosphere
kHz
Kilohertz
KIAS
Knots Indicated Airspeed
KTAS
Knots True Airspeed
L/MF
Low/Medium Frequency
LAA
Local Airport Advisory
LAHSO
Land and Hold Short Operations
LAT
Latitude
LF
Low Frequency
LIRLs
Low Intensity Runway Lights
LLWAS
Low Level Wind Shear Alert System
LONG
Longitude
LOP
Line of Position
LORAN
Long Range Navigation
MB
Magnetic Bearing
mb
Millibar
MEF
Maximum Elevation Figure
METAR
Aviation Routine Weather Report
MH
Magnetic Heading
MHz
Megahertz
MIRLs
Medium Intensity Runway Lights
MOA
Military Operations Area
MSAW
Minimum Safe Altitude Warning
MSL
Mean Sea Level
MTR
Military Training Route
MULTICOM
Frequency used at airports without a tower, FSS, or Unicom
MVFR
Marginal VFR
n.m.
Nautical Miles
NAVAID
Navigational Aid
NDB
Nondirectional Radio Beacon
NOAA
National Oceanic and Atmospheric Administration
NOS
National Ocean Service
NOTAM
Notice To Airmen
NPRM
Notice of Proposed Rule Making
NSA
National Security Area
NTAP
Notices to Airmen Publication
NTSB
National Transportation Safety Board
NWS
National Weather Service
OAT
Outside Air Temperature
OBS
Omnibearing Selector
p.s.i.
Pounds per Square Inch
PA
Pressure Altitude
PAPI
Precision Approach Path Indicator
PCL
Pilot Controlled Lighting
PIC
Pilot in Command
PIM
Pilot Information Manual
PIREP
Pilot Weather Report
PLASI
Pulsating Approach Slope Indicator
POH
Pilot’s Operating Handbook
PTS
Practical Test Standards
r.p.m.
Revolutions per Minute
RB
Relative Bearing
RADAR
Radio Detection and Ranging
RAREP
Radar Weather Report
RCO
Remote Communications Outlet
REIL
Runway End Identifier Lights
RMI
Radio Magnetic Indicator
RNAV
Area Navigation
RVR
Runway Visual Range
s.m.
Statute Mile
SAR
Search and Rescue
SCATANA
Security Control of Air Traffic and Air Navigation Aids
SD
Radar Weather Report
SIGMET
Significant Meteorological Information
SPECI
Non-Routine (special) Aviation Weather Report
SVFR
Special VFR
TACAN
Tactical Air Navigation
TAF
Terminal Aerodrome Forecast
TAS
True Airspeed
TC
True Course
TDWR
Terminal Doppler Weather Radar
TEL-TWEB
Telephone Access to TWEB
TH
True Heading
TIBS
Telephone Information Briefing Service
TRACON
Terminal Radar Approach Control Facilities
TRSA
Terminal Radar Service Area
TVOR
Terminal VOR
TWEB
Transcribed Weather Broadcast
UHF
Ultra High Frequency
UNICOM
Aeronautical Advisory Station
UTC
Coordinated Universal Time (Zulu Time)
UWS
Urgent Weather SIGMET
VAFTAD
Volcanic Ash Transport and Dispersion Chart
VASI
Visual Approach Slope Indicator
VFR
Visual Flight Rules
VHF
Very High Frequency
VHF/DF
VHF Direction Finder
VMC
Visual Meteorological Conditions
VOR
VHF Omnidirectional Receiver
VOR/DME
Collocated VOR and DME
VORTAC
Collocated VOR and TACAN
VOT
VOR Test Facility
VR
VFR Military Training Route
VSI
Vertical Speed Indicator
WA
AIRMET
WAC
World Aeronautical Chart
WCA
Wind Correction Angle
WH
Hurricane Advisory
WS
SIGMET
WST
Convective SIGMET
WW
Severe Weather Watch Bulletin