Aviation Acronyms & Abbreviations for Pilots


MAA – Military Aviation Authority

MAA – Missed Approach Altitude

MAC – Average Aerodynamic Tuning

MACG – Missed Approach Climb Gradient

MAP – Missed Approach Point

MATZ – Military Air Traffic Zone

MCC – Multi-Crew Cooperation Course

MCP – Modes Control Panel

MCRIT – Critical Mac 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 – Aerodrome Meteorological Report

MFRA – Minimum Flap Retraction Altitude

MLM – Maximum Landing Weight

MLS – Microwave Landing System

MLW – Maximum Landing Weight

MM – Middle Marker

MMO – Max Mach Number

MOA – Memorandum of Understanding

MOC – Minimum Obstacle Clearance

MOR – Mandatory Event Report

MORA – Minimum Enroute Altitude

MPA – Multi-pilot airplane

MPL – Multi-crew pilot license

MPS – Meters Per Second

MRO-Mmaintenance, repair and overhaul

MRW – Maximum Ramp Weight

MSA – Minimum Sector / Safe Altitude

MSL – Mean Sea Level

MTOW – Maximum take-off weight

MZFW – Maximum weight without fuel


N1 – Low pressure compressor speed

N2 – High pressure compressor speed

NADP – Noise Abatement Departure Procedure (1 or 2)

NAT – North Atlantic

NAT-OTS – North Atlantic Organized Tracking System

NATS – North Atlantic Track System

NATS – National Air Traffic Service

NAV – Navigation

ND – Navigation Display

NDB – non-directional beacon

NG – New Generation

Nigel – A British Airways pilot (slang)

NM – Nautical mile

No1 – Number One (Senior Cabin Crew Member)

NOTAM – Notice to Airmen

NOTECH – Soft Skills

NPA – Non-precision approach

NPPL – National Private Pilot License

NSC – No Significant Cloud

NTS – Soft Skills

NTSB – National Transportation Safety Board

NWS – Front Wheel Steering


OAA – Oxford Aviation Academy (integrated school in the United Kingdom)

OAT – Outside Air Temperature

OB – Blocks Off/On

OBS – Omni Bearing Selector

OC – ​​​​Operations Control

OCA – Obstacle Clearance Altitude

OCA – Oceanic Control Area

OCC – Operator Conversion Course

OCH – Obstacle Clearance Height

OEA – Single Engine Approach

OEI – An Inoperative Engine

OEM – Original Equipment Manufacturer

OFP – Operational Flight Plan

OM – Operations Manual

OM – Outside Marker

OPC – Operator Proficiency Check

OTP – Point Performance

OTS – Organized Track System

OTS – Out of Service

QTY – Quantity

OW – Operating Weight

OXY – Oxygen

O2 – Oxygen


P1 – Captain

P2 – Pilot second in command

PA – Announcement to public/passengers

Packages – Air Conditioning Units

PANS-OPS – Procedures for Air Navigation Services

PAPI – Precision Approach Path Indicator

PAR – Precision Approach Radar

PAX – Passenger/s

PBN – Performance Based Navigation

PCN – Pavement Classification Number

PDC – Authorization before departure

PET – Equal Time Point

PF – Pilot in command

PFD – Primary Flight Display

PFL – Forced Landing Training

PIC – Pilot in Command

PICUS – Pilot in command under supervision

PIO – Pilot Induced Oscillations

PEREP – Pilot Report

PoB – Passengers on board

PoF – Principles of Flight

POH – Pilot Operation Manual

PM – Pilot Monitoring

PNF – Pilot Not Flying

PNR – Point of No Return

PPL – Private Pilot License

PPR – Prior authorization required

PRNAV – Precision Area Navigation

PSI – Pressure Per Square Inch

PSR – Secure Return Point

PSR – Purser (No 1 Cabin Crew)

PT – Progress Test

PTT – Push to Talk

PUT – Pilot in training


QDM – Magnetic heading to a station

QDR – magnetic bearing of a station

QFE – Field Elevation (Pressure Setting)

QNH – Regional Pressure Setting

QRA – Rapid Reaction Alert

QRH – Quick Reference Manual


RA – Radio Altimeter

RA – Radio Altitude

RA – Notice of Rescission

RAD ALT – Radio altimeter

RADAR – Detection and radio range

RAF-Royal Air Force

RAS – Speed ​​Corrected

RAT – Ram Air Turbine

REL – Runway edge lights

RESA – Runway End Safety Area

RET – Fast Exit Lane

RFFS – Rescue and Firefighting Services

RMI – Magnetic Radio Indicator

RN – Royal Navy

RNAV – Area Navigation

RNP – Required Navigation Performance

RPL – Repetitive Flight Plan

RPM – Revolutions Per Minute

RT – Radiotelephony

RTB – Return to Base

RTFQ – Read Question F**k**g

RTO – Rejected takeoff

RTS – Back to Pit

RTS – Return to Service

RYR – Ryanair (ICAO Code)

RVR – Runway Visual Range

RVSM – Reduced Vertical Separation Minima

RW – Track

TRACK – Track


SADLR – Saturated Adiabatic Lapse Rate

SAR – Search and Rescue

SAT – Saturated Air Temperature

SATCOM-STellite communication

SCCM – Senior Cabin Crew Member

SE – Single Engine

SELCAL – Selective Call

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 – Important Weather Advisory

SLF – Self Loading Freight (Passengers)

SLOPE – Strategic Lateral Shift Procedures

SLP – Speed ​​limit point

SM – Statute Mile

SMR – Surface Motion Radar

N/A – Second Officer

SOP – 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 – Estimated Time of Arrival

STAR – Standard Terminal Arrival Route

STD – Scheduled Departure Time

STD – Standard (1013mb pressure setting)


TA – Transition Altitude

TA – Traffic advisory

TAA – Terminal Arrivals Area

TAA-TTerminal arrival altitude

TACAN – Tactical Air Navigation

TAF – Terminal Area Forecast

TAF – Aerodrome forecasts

TAFB – Base Away Time

TAS – True airspeed

TAT – Total Air Temperature

TCA – Terminal Control Area

TCAS – Traffic Collision Avoidance System

TCH – Threshold Crossing Height

TDZ – Touchdown Zone


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 Maneuvering Area

TMI – Message Identification Tracking

To take off

TO/GA – Take-off Go-around

TOC – Takeoff Configuration

TOC – Top of the climb

TOD – Top of the descent

TODA – Takeoff distance available

TORA – Runway available

TOW – Take-off Weight

TP – Turboprop

TR – Type Rating

TRE – Type Rating Examiner

TRI – Type Rating Instructor

TRTO – Type Rating Training Organization

TRU – Transformer Rectifier Unit

TS – Thunderstorm

TT – Total Time


TWC – Tailwind Component


TWY – Taxiway


UA – Unusual Attitude

UAS – University Air Squadron

UAV – Unmanned Aerial Vehicles

UFO – Unidentified Flying Object

UHF – Ultra High Frequency

UIR – Upper Flight Information Region

U/S – Out of Service

USAF – United States Air Force

UTC – Coordinated Universal Time (Zulu)


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 Extended Landing Gear Speed

VMC – Visual weather conditions

VMCA – Minimum Flight Control Speed

VMCG – Minimum Ground Control Speed

VMO – Maximum Indicated Airspeed

VNAV – Vertical Navigation

VNE – Never Exceed Speed

VNO – Normal Operating Speed

VOLMET – In-flight weather information

VOR – VHF Omnidirectional Radio Range

VR – Rotate

VRB – Variable

VS – Vertical Speed

VSI – Vertical Speed ​​Indicator

VTOL – Vertical Takeoff and Landing

VIP – Very Important Person

VV – Vertical Visibility

VVIP – Very Very Important Person

VX – Best rate of climb angle

VY – Best rate of climb speed


WILCO – will comply

WIP – Work in progress

WOCL – Circadian Depression Window

WPT – Waypoint



XPDR – Transponder

XWC – Crosswind component


Z – Zulu time (same as UTC and GMT)

ZFT – Zero Flight Time

ZFW – Weight Without Fuel