Aviation Abbreviations

Aviation Acronyms and Abbreviations

Specifically written with Pilots in mind…

The world of aviation abbreviations and acronyms is huge. More and more acronyms keep arriving and it will take an entire career to have heard and used them all! If you’ve got one in mind that you can’t find, give us at FlightDeckFriend.com an email and we’ll get it added.

A | B | C | D | E | F | G | H | I | J | K | L | M | O | P | Q | R | S | T | U | V | W | X | Y | Z

A

AA – Acceleration Altitude

A/A – Air to Air

AA – Anti Aircraft

AA – American Airlines

AAIB – Air Accident Investigation Branch

AAL – Above Aerodrome Level

ALPHA – Angle of Attack

AB – Auto Brake

ABP – Able Bodied Passengers

AC – Alternating Current

A/C – Aircraft

ACARS – Aircraft Communication Addressing and Reporting System

ACN – Aircraft Classification Number

ACP – Auto Control Panel

AD – Airworthiness Directive

ADC – Air Data Computer

ADF – Automatic Direction Finder

ADI – Attitude Director Indicator

ADU – Air Data Unit

AFE – Above Field Elevation

AGL – Above Ground Level

AH – Artificial Horizon

AI – Altitude Indication

AIP – Aeronautical Information Publication

ALS – Approach Lighting System

ALT – Altitude

AMSL – Above Mean Sea Level

AoA – Angle of Attack

AOC – Air Operators Certificate

AOG – Aircraft on Ground (due to a technical defect)

AOM – Airport Operating Minima

AP – Auto Pilot

AP – Aeroplane

APP – Approach

APS – Airline Pilot Standard (MCC Course)

APT – Airport

APU – Auxiliary Power Unit

ANC – Aviate Navigate Communicate

ANP – Actual Navigation Performance

AR – Aspect Ratio

AR – Authorisation Required (RNAV Approaches)

ARP – Aerodrome Reference Point

ASDA – Accelerate Stop Distance Available

ASI – Airspeed Indicator

ASL – Above Sea Level

ASR – Airport Surveillance Radar

ASR – Air Safety Report

AT – Auto Throttle

ATA – Air Transport Association

ATC – Air Traffic Control

ATC – Air Training Corps

ATIS – Automatic Terminal Information Service

ATM – Air Traffic Management

ATP – Airline Transport Pilot

ATS – Air Traffic Service

ATPL – Air Transport Pilots Licence

ATZ – Air Traffic Zone

B

BA – Braking Action

BA – British Airways

BAA – British Airport Authority

BAA – Baltic Aviation Academy

BACF – British Airways Cityflyer

BALPA – British Airline Pilots Association

BT – Backtrack

BCS – Back Course (ILS)

BPR – By-Pass Ratio

BRK – Brookfield

BST – British Summer Time

C

CA – Critical Area (ILS)

CAA – Civil Aviation Authority

CAE – A flight training organisation (OAA)

CAS – Calibrated Air Speed

CAT – Category (ILS)

CAT – Clear Air Turbulence

CAVOK – Ceiling and Visibility OK

CB – Circuit Breaker

CB – Cumulonimbus

CBT – Computer Based Training

CC – Cabin Crew

CC – Crew Control

CC – Company Council (BALPA Related)

CDA – Continuous Descent Approach

CDFA – Continuous Descent Final Approach

CDI – Course Deviation Indicator

CDU – Control Display Unit

CFI – Chief Flying Instructor

CFIT – Controlled Flight into Terrain

CGI – Chief Ground Instructor

CL – Center Line

CLB – Climb

CMD – Command

CMV – Converted Meteorological Visibility

COBT – Calculated Off Block Time

CoG – Centre of Gravity

CON – Contingency Fuel

CON – Max Continuos Thrust

CP – Chief Pilot / Cadet Program / Cadet Pilot

CP – Critical Point

CPDLC – Controller Pilot Data Link Communications

CPL – Commercial Pilots Licence

CPT – Captain

CRM – Crew Resource Management

CRMI – Crew Resource Management Instructor

CRZ – Cruise

CSM – Cabin Service Manager

CSS – Cabin Service Supervisor

CTC – British Integrated Flight Training Organisation

CTC – Chief Training Captain

CTOT – Calculated Take Off Time

CTR – Control Zone

CTZ – Control Zone

CVR – Cockpit Voice Recorder

CWS – Control Wheel Steering

CX – Checks

D

DA – Decision Altitude

DALR – Dry Adiabatic Lapse Rate

DC – Direct Current

DEC – Direct Entry Captain

DER – Departure End (of the) Runway

DG – Dangerous Goods

DH – Decision Height

DI – Direction Indicator

DIV – Diversion

DLR – Aptitude Testing Used by Lufthansa

DME – Distance Measuring Equipment

DNF – Did Not Fly

DODAR – Diagnose/Options/Decide/Assign/Review

DOC – Designated Operating Coverage

DOW – Dry Operating Weight

E

EASA – European Aviation Safety Agency

EAT – Estimated Approach Time

EET – Estimated Elapsed Time

EFB – Electronic Flight Bag

EFIS – Electronic Flight Information System

EGT – Exhaust Gas Temperature

EGPWS – Enhanced Ground Proximity Warning System

EHSI – Electronic Horizontal Situation Indicator

ELT – Emergency Locator Transmitter

ELW – Estimated Landing Weight

EMB – Embraer

EMR – Emergency

EPR – Engine Pressure Ratio

ET – Elapsed Time

ETA – Estimated Time of Arrival

ETOPS – Extended-range Twin-engine Operational Performance Standards

ETOW – Estimated Take Off Weight

ETP – Emergency Turn Procedure

EZFW – Estimated Zero Fuel Weight

EZY – easyJet (ICAO Code)

F

FA – Flight Attendant

FATPL – Frozen Air Transport Pilots Licence

FAA – Federal Aviation Administration

FADEC – Full Authority Digital Engine Control

FAF – Final Approach Fix

FAP – Final Approach Point

FAR – Fedral Aviation Regulation

FAT – Final Approach Track

FBS – Fixed Based Simulator

FBT – Fixed Based Trainer

FBW – Fly By Wire

FCL – Flight Crew Licensing

FCOM – Flight Crew Operations Manual

FCTM – Flight Crew Training Manual

FD – Flight Director

FDR – Flight Data Recorder

FE – Flight Engineer

FFS – Full Flight Simulator

FI – Flight Instructor

FIR – Flight Information Region

FIS – Flight Information Service

FLCH – Flight Level Change

FMA – Flight Mode Announciation

FMC – Flight Management Computer

FMS – Flight Management System

FNPT – Flight & Navigation Procedures Trainer

FO – First Officer

FOM – Fuel of Merit

FOD – Foreign Object Damage

FPA – Flight Path Angle

FPL – Filed Flight Plan

FPM – Feet Per Minute

FPP – Future Flyer Programme

FPT – Flat Panel Trainer

FR – Ryanair (IATA Code)

FREQ – Frequency

FT – Flight Training

FTE – Flight Training Europe, Jerez

FTO – Flight Training Organisation

G

G – G-force

GA – General Aviation

G/A – Go Around

GAPAN – The Guild of Air Pilots & Air Navigators

GC – Great Circle

GE – General Electric

GENDEC – General Decleration

GH – General Handling

GI – Ground Instructor

GND – Ground

GNSS – Global Navigation Satellite System

GP – Glide Path

GP – Guidance Panel

GPA – Glide Path Angle

GPS – Global Positioning System

GPWS – Ground Proximity Warning System

GS – Ground School

GS – Ground Speed

GS – Glide Slope

H

HDG – Heading

HDG SEL – Heading Select

HEA – High Energy Approach

HF – Human Factors

HF – High Frequency

HIALS – High Intensity Approach Lighting System

HIL – Hold Item List

HoT – Head of Training

HOT – Hold Over Time (Anti-icing)

HPA – Hectopascal

HP – Horse Power

HP – High Pressure

HPT – High Pressure Turbine

HSI – Horizontal Situation Indicator

HST – Hypersonic Transport

HUD – Head Up Display

HWC – Head Wing Component

HYD – Hydraulics

I

IAA – Irish Aviation Authority

IAC – Instrument Approach Chart

IAP – Instrument Approach Procedure

IAF – Initial Approach Fix

IALPA – Irish Airline Pilots Association

IAP – Instrument Approach Procedure

IAS – Indicated Air Speed

IATA – International Air Transport Association

ICAO – International Civil Aviation Organisation

IDG – Integrated Drive Generator

IFR – Instrument Flight Rules

ILS – Instrument Landing System

IMC – Instrument Meteorological Conditions

INOP – Inoperative

INS – Inertial Navigation System

IR – Instrument Rating

IRS – Inertial Reference System

IRST – Instrument Rating Skills Test

IRU – Inertial Reference Unit

ISA – International Standard Atmosphere

ITCZ – Intertropical Convergence Zone

J

JAA – Joint Aviation Authorities

JAR – Joint Aviation Requirements

JFO – Junior First Officer

JOC – Jet Orientation Course

JS – Jump Seat

K

kHz – Kilohertz

KIAS – Knots Indicated Airspeed

KM – Kilometres

KPH – Kilometres per hour

KTS – Knots

L

LCC – Low Cost Carrier/s

LCK – Line Check

LCTR – Locator

LD – Landing Distance

LDA – Landing Distance Available

LDA – Low Drag Approach

LDR – Landing Distance Required

LG – Landing Gear

LHO – Live Human Organs

LHR – London Heathrow

LLZ – Localiser

LOC – Localiser

LOE – Line Orientated Exercise

LOFT – Line Oriented Flight Training

LORAN – Long Range Navigation

LNAV – Lateral Navigation

LP – Low Pressure

LPC – Line Proficiency Check

LRU – Line Replaceable Unit

LSK – Line Select Key

LSS – Local Speed of Sound

LST – Line Skills Test

LT – Line Training

LT – Local Time

LT – Leadership Team

LTC – Line Training Captain

LTP – Landing Threshold Point

LVL – Level

LVP – Low Visibility Procedures

LW – Landing Weight

M

MAA – Military Aviation Authority

MAA – Missed Approach Altitude

MAC – Mean Aerodyanamic Chord

MACG – Missed Approach Climb Gradient

MAP – Missed Approach Point

MATZ – Military Air Traffic Zone

MCC – Multi Crew Cooperation Course

MCP – Mode Control Panel

MCRIT – Critical Mach Number

MCT – Maximum Continuous Thrust

MDA – Minimum Decent Altitude

MDH – Minimum Decent Height

ME – Multi Engine

MEA – Minimum Enroute Altitude

MEL – Minimum Equipment List

MMEL – Master Minimum Equipment List

MEP – Multi Engine Piston

MET – Meteorological

METAR – Meteorological Aerodrome Report

MFRA – Minimum Flap Retraction Altitude

MLM – Maximum Landing Mass

MLS – Microwave Landing System

MLW – Maximum Landing Weight

MM – Middle Marker

MMO – Maximum Mach Number

MOA – Memorandum of Agreement

MOC – Minimum Obstacle Clearance

MOR – Mandatory Occurance Report

MORA – Minimum En-route Altitude

MPA – Multi Pilot Aircraft

MPL – Multi-Crew Pilots Licence

MPS – Meters Per Second

MRW – Maximum Ramp Weight

MSA – Minimum Sector/Safe Altitude

MSL – Mean Sea Level

MTOW – Maximum Take Off Weight

MZFW – Maximum Zero Fuel Weight

N

N1 – Low Pressure Compressor Speed

N2 – High Pressure Compressor Speed

NADP – Noise Abatement Departure Procedure (1 or 2)

NATS – National Air Traffic Service

NAV – Navigation

ND – Navigation Display

NDB – Non Directional Beacon

NG – Next Generation

Nigel – A British Airways Pilot (Slang)

NM – Nautical Mile

No1 – Number One (Senior Cabin Crew Member)

NOTAM – Notice to Airmen

NOTECH – Non Technical Skills

NPA – Non Precision Approach

NPPL – National Private Pilots Licence

NSC – No Significant Cloud

NTS – Non Technical Skills

NTSB – National Transportation Safety Board

NWS – Nose Wheel Steering

O

OAA – Oxford Aviation Academy (UK Integrated School)

OAT – Outside Air Temperature

OB – Off/On Blocks

OBS – Omni Bearing Selector

OC – Operations Control

OCA – Obstacle Clearance Altitude

OCC – Operators Conversion Course

OCH – Obstacle Clearance Height

OEA – One Engine Approach

OEI – One Engine Inoperative

OEM – Original Equipment Manufacturer

OFP – Operational Flight Plan

OM – Operations Manual

OM – Outer Marker

OPC – Operator Proficiency Check

OTP – On Time Performance

OTS – Out of Service

QTY – Quantity

OW – Operational Weight

OXY – Oxygen

O2 – Oxygen

P

P1 – Pilot in Command

P2 – Pilot Second in Command

PA – Public/Passenger Announcement

Packs – Air Conditioning Units

PANS-OPS – Procedures for Air Navigation Services

PAPI – Precision Approach Path Indicator

PAR – Precision Approach Radar

PAX – Passenger/s

PCN – Pavement Classification Number

PET – Point Of Equal Time

PF – Pilot Flying

PFD – Primary Flight Display

PFL – Practice Forced Landing

PIC – Pilot in Command

PICUS – Pilot in Command Under Supervision

PIO – Pilot Induced Oscillations

PIREP – Pilot Report

PoB – Passengers on Board

PoF – Principles of Flight

POH – Pilot’s Operating Handbook

PM – Pilot Monitoring

PNF – Pilot Not Flying

PNR – Point of No Return

PPL – Private Pilots Licence

PPR – Prior Permission Required

PRNAV – Precision Area Navigation

PSI – Pressure per square inch

PSR – Point of Safe Return

PSR – Purser (No 1 Cabin Crew)

PT – Progress Test

PTT – Push to Talk

PUT – Pilot Under Training

Q

QDM – Magnetic heading to a station

QDR – Magnetic Bearing from a station

QFE – Field Elevation (Pressure Setting)

QNH – Regional Pressure Setting

QRA – Quick Reaction Alert

QRH – Quick Reference Handbook

R

RA – Radio Altimeter

RA – Radio Altitude

RA – Resolution Advisory

RADAR – Radio Detection and Ranging

RAF – Royal Air Force

RAS – Rectified Airspeed

RAT – Ram Air Turbine

REL – Runway Edge Lights

RESA – Runway End Safety Area

RET – Rapid Exit Taxiway

RMI – Radio Magnetic Indicator

RN – Royal Navy

RNAV – Area Navigation

RNP – Required Navigation Performance

RPL – Repetitive Flight Plan

RT – Radio Telephony

RTB – Return to Base

RTFQ – Read The F**k**g Question

RTO – Rejected Take Off

RTS – Return to Stand

RYR – Ryanair (ICAO Code)

RVR – Runway Visual Range

RVSM – Reduced Vertical Separation Minima

RW – Runway

RWY – Runway

S

SADLR – Saturated Adiabatic Lapse Rate

SAR – Search and Rescue

SAT – Saturated Air Temperature

SCCM – Senior Cabin Crew Member

SE – Single Engine

SELCAL – Selective Calling

SEP – Single Engine Piston

SEP – Safety and Emergency Procedures

SFI – Synthetic Flight Instructor

SFO – Senior First Officer

SHF – Super High Frequency

SIC – Second In Command

SID – Standard Instrument Departure

SIGMET – Significant meteorological advisory

SLF – Self Loading Freight (Passengers)

SLP – Speed Limit Point

SM – Statute Mile

SMR – Surface Movement Radar

S/O – Second Officer

SOP’s – Standard Operating Procedures

SOS – Save our Souls (Distress call)

SPIC – Student Pilot In Command

SR – Sunrise

SRA – Surveillance Radar Approach

SS – Sunset

SSR – Secondary Surveillance Radar

SST – Supersonic Transport

STA – Scheduled Time of Arrival

STAR – Standard Terminal Arrival Route

STD – Scheduled Time of Departure

STD – Standard (Pressure Setting 1013mb)

T

TA – Transition Altitude

TA – Traffic Advisory

TAA – Terminal Arrival Area

TACAN – Tactical Air Navigation

TAF – Terminal Area Forecast

TAF – Aerodrome Forecast

TAFB – Time Away From Base

TAS – True Airspeed

TAT – Total Air Temperature

TCA – Terminal Control Area

TCAS – Traffic Collision Avoidance System

TCH – Threshold Crossing Height

TDZ – Touch Down Zone

TECH – Technical

TEM – Threat and Error Management

TERPS – Terminal Procedures

TFC – Traffic

THOB – Total Heads On Board

THLD – Threshold

THLD – Thrust Hold

THR – Threshold

TKI – Theoretical Knowledge Instructor

TL – Transition Level

TLA – Thrust Lever Angle

TMA – Terminal Manoeuvring Area

T/O – Take Off

TO/GA – Take Off Go Around

TOC – Take Off Configuration

TOC – Top Of Climb

TOD – Top Of Descent

TODA – Take Off Distance Available

TORA – Take Off Run Available

TOW – Take Off Weight

TP – Turbo Prop

TR – Type Rating

TRE – Type Rating Examiner

TRI – Type Rating Instructor

TRTO – Type Rating Training Organisation

TRU – Transformer Rectifier Unit

TS – Thunderstorm

TT – Total Time

TTL – Total

TWC – Tail Wind Component

TWR – Tower

TWY – Taxiway

U

UA – Unusual Attitude

UAS – University Air Squadron

UAV – Unmanned Air Vehicles

UFO – Unidentified Flying Object

UHF – Ultra High Frequency

UIR – Upper Flight Information Region

U/S – Unserviceable

USAF – United States Air Force

UTC – Universal Co-ordinated Time (Zulu)

V

VA – Virgin Atlantic

VAAC – Volcanic Ash Advisory Center

VAC – Volcanic Approach Chart

VASI – Vertical Approach Slope Indicator

VFE – Maximum Flap Extension Speed

VFR – Visual Flight Rules

VHF – Very High Frequency

VIP – Very Important Person

VIMD – Maximum Drag Speed

VLE – Maximum Landing Gear Extended Speed

VMC – Visual Meteorological Conditions

VMCA – Minimum Control Speed Airborne

VMCG – Minimum Control Speed Ground

VMO – Maximum Indicated Airspeed

VNAV – Vertical Navigation

VNE – Never Exceed Speed

VNO – Normal Operating Speed

VOLMET – Meterlogical Information In Flight

VOR – VHF Omni Directional Radio Range

VR – Rotate

VRB – Variable

VS – Vertical Speed

VSI – Vertical Speed Indicator

VTOL – Vertical Take Off and Landing

VIP – Very Important Person

VV – Vertical Visability

VVIP – Very Very Important Person

VX – Best Angle of Climb Speed

VY – Best Rate of Climb Speed

W

WILCO – Will Comply

WIP – Work In Progress

WOCL – Window of Circadian Low

WPT – Way Point

X

WX – Weather

XPDR – Transponder

XWC – Cross Wind Component

Z

Z – Zulu Time (Same as UTC and GMT)

ZFT – Zero Flight Time

ZFW – Zero Fuel Weight