Aviation Abbreviations: Airplane and Airline FAQ

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A airbus

ACM air cycle machine

AGL above ground level

APU auxiliary power unit

ASA autoland annunciator status

ATC air traffic control

ATIS automatic terminal information service

ATP airline transport pilot

B Boeing

CAT clear air turbulence

CG center of gravity

DII decision height

DME distance measuring equipment

DOT Department of Transportation

EDC expect departure clearance

EGT exhaust gas temperature

EICAS engine indicating and crew alert system

EPR engine pressure ratio

ETA estimated time of arrival

ETD estimated time of departure

FAA

FAR

FL

FMS

FPM

g

GMT

GPWS

GS

Gyro

HMG HSI

hz

IAS

IFR

ILS

INS

IRS

KIAS

LAT

Lbs

LLWAS

LONG

LOC

MCP

MD

MDA

MEL

mph

MSL

Federal Aviation Administration Federal Aviation Regulations

flight level

flight management system

feet per minute

hydraulic motor driven generator horizontal situation indicator hertz (cycles per second)

indicated airspeed instrument flight rules instrument landing system inertial navigation system inertial reference system

knots indicated airspeed

latitude

pounds

low level windshear alert system longitude

localizer

mode control panel (autopilot) McDonnell Douglas minimum descent altitude minimum equipment list miles per hour

mean sea level

gravity

Greenwich Mean Time ground proximity warning system ground speed or glide slope gyroscope

N-1

N-2

NM

NOTAM

NTSB

NWS

OAT

PCA

IREP

psi

Radar

RAT

rpm

RVR

SAT

SID

SIGMET

SL

STAR

TACAN

TAS

TAT

TCA

V-1

V-R

V-2

V-MO

VASI

VHF

VOR

engine rpm at a specific location engine rpm at a second specific

location nautical miles notices to airmen

National Transportation Safety Board

National Weather Service

outside air temperature

radio detection and ranging ram air turbine revolutions per minute runway visual range

static air temperature standard instrument departure significant meteorological information sea level

standard terminal arrival route

UHF tactical air navigation aid true airspeed

total air temperature terminal control area

velocity 1 accelerate-stop speed velocity of rotation velocity 2 loss of engine climb speed velocity maximum operating

(never-exceed speed) visual approach slope indicator very high frequency VHF omnidirectional radio range

navaid

positive control area pilot report pounds per square inch

VORTAC combined VOR and TACAN station

VSI vertical speed indicator

WX weather

Z Greenwich Mean Time (zulu time)

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