Abbreviations / aviation

This is the first part of a list of Abbreviations and Acronyms as used in aerospace and military aviation.

List of abbreviations

Part 1	A.	A ( AA ; AB ; AC ; AD ; AE ; AF ; AG ; AH ; AI ; AK ; AL ; AM ; AN ; AO ; AP ; AQ ; AR ; AS ; AT ; AU ; AV ; AW ; AZ )
Part 2	B-D	B ; C ; D.
part 3	E – K	E ; F ; G ; H ; I ; J ; K
Part 4	L-R	L ; M ; N ; O ; P ; Q ; R.
Part 5	S-Z	S ; T ; U ; V ; W ; X ; Y ; Z
Part 6	Russian abbreviations
Part 7	numbers	numbers
Part 7	attachment	Abbreviations NOT taken into account ; Sort criteria
Part 7	Examples	Flight plan ; VFR Bulletin ; METAR

A.

( AA ; AB ; AC ; AD ; AE ; AF ; AG ; AH ; AI ; AK ; AL ; AM ; AN ; AO ; AP ; AQ ; AR ; AS ; AT ; AU ; AV ; AW ; AZ )

(to the next section - AA)

A.	alpha	int. spelling alphabet ( ICAO alphabet )
A (+ number)	Amber (or Alpha)	yellow airway (+ number) (amber)
A.	Attack (aircraft)	Attack aircraft (e.g. A-4 ; A-10 )
A.	Altimeter Subscale Setting	(e.g. A3039 = 30.39 inchMercury; for metric values ​​in hPa, Q is used instead - see QNH)
A.	Class-A airspace	Class A airspace ( airspace structure )
A.	Category A Aircraft	In the landing configuration, the approach speed (1.3 × V S ) is less than 91 kt
A.	airbus
A.	asphalt	asphalt
A.	Alert Area	Alarm area
A.	amp	Unit of current strength
A.		System A = system no.1 (to differentiate from system no.2 = system 2; in some systems also differentiated with R - right - and L - left; at Airbus the three redundant systems have color names)
A.		First Class special tariff (Lufthansa and Star Alliance booking code ) - see: Booking class
A.	Drift angle	see: drift , lead angle
A.	Adult	Adults - e.g. B. PAX (A / C / I)

AA

(to the next section - AB) ... (to the beginning of the list)

AA; A / A	Air-to-air	Air / air; Board / board
AA	Anti-aircraft	against planes
AA	Airservices Australia
AA	Address Announced
AA	Airworthiness Authorities
AA	Acceleration Altitude
AAA	Anti-aircraft artillery	Air defense, flak, anti-aircraft gun
AAA	Amended Meteorological Message
AAAA	Aerial Agriculture Association of Australia
AAAE	American Association of Airport Executives
AAAH	Airbus Approved Abbreviation Handbook
AAC	Airworthiness Advisory Circular
AACC	Area Approach Control Center
AADC	Approach and Departure Control
AAE	Above Airport Elevation
AAF	Army Air Field	Military airfield
AAI	Arrival Aircraft Interval	(air traffic control)
AAI	Angle Of Approach Indicator	Approach angle indicator
AAI	Airports Authority of India	Indian air traffic control
AAI	Avionics Airworthiness Inspector
AAI	Air-to-air intercept
AAI	Air-to-air interface
AAI	Air-to-air interrogator
AAI	Antenna-Air Interface
AAIB	Air Accidents Investigation Branch (UK)	British Aircraft Accident Investigation Authority
AAIB	Air Accidents Investigation Board	Aircraft Accident Investigation Authority (e.g. Denmark)
AAIM	Aircraft Autonomous Integrity Monitoring	On-board integrity monitoring
AAIS	Automatic Aerodrome Information Service
AAIU	Air Accidents Investigation Unit	Irish Aircraft Accident Investigation Authority
AAK	Unit Load Device (ULD)	IATA ID code for a specific type of air cargo container - igloo unit
EEL	Above Aerodrome Level	Altitude above airfield ( flight altitude ); above airport level
AAM	Aircraft Maintenance Manual	Set of rules that regulate all activities in the maintenance of a specific aircraft type in a binding manner. It contains legally binding all work to be carried out and provides data on its implementation. It also contains information on other applicable regulations, such as the applicable engineering orders .
AAN	Unit Load Device (ULD)	IATA ID code for a specific type of air cargo container - QC container
AAPA	Association of Asia Pacific Airlines
AAR	Air-to-air refueling	In-flight refueling
AAR	Authorized Airworthiness Representative
AAR	Airport arrival rate	Number of aircraft per hour that an airspace or airport can accept from the ARTCC
AAS	Airport Advisory Service
AAT	Autopilot automatic thrust; Autopilot autothrust	Automatic thrust control (on the autopilot )
AATTC	Advanced Airlift Tactics Training Center	(UNITED STATES)
AAU	Authorized Approach UNICOM
AAV	Advanced Air Vehicle
AAW	Antiair Warfare
AAY	Unit Load Device (ULD)	IATA ID code for a specific type of air cargo container - Euro container

to the previous section - AA

FROM

(to the next section - AC) ... (to the top of the list)

FROM	Afterburner	Afterburner
ABA	Highway Strip	Motorway section: GDR name for the makeshift airfield
ABA	Aircraft relevant bird area	Aviation-relevant bird occurrences
ABAS	Aircraft Based Augmentation System
ABATE	Abatement	Reduction (e.g. noise abatement - noise reduction )
FIG		General Conditions of Carriage (for passengers and baggage)
ABC	ABC-World Airlines Guide	monthly world flight plan
ABD	Airbus Directives
ABD	Aircraft Baseline Definition	(Airbus Industry Standard)
ABF	Australian Ballooning Federation
OJ	Airborne laser	airborne laser attack weapon (for example, the Boeing AL-1 is a flying laser weapon system)
ABM	Abeam	abeam
ABN	Aerodrome Beacon	Airfield beacon
ABN	Abnormal
ABNORMAL	Abnormal
ABP	Able Bodied Passenger	non- disabled passenger
SECTION	Anti skid system	Anti-lock braking system (originally an invention of the aircraft industry)
SECTION	Automatic Brake System	( McDonnell Douglas MD-80 )
SECTION	Air Base Squadron (USAF)
SECTION	absolute
ABT	About	about
ABV	Above	via (e.g. TEMPS NEG ABV 24000)

to the previous section - AB

AC

(to the next section - AD) ... (to the top of the list)

AC	Air carrier	Air freight company
AC	Alternating Current	Alternating current
AC	Air charter
AC	Convective Outlook	Aviation weather forecast type (see aviation weather )
AC	Advisory Circular	FAA publication
AC; A / C	Air conditioning	Air conditioning (airplane)
AC	Altitude code
AC	Altocumulus	Altocumulus clouds (weather key for METAR and TAF )
AC	Aerodynamic Center	Aerodynamic center ( flight mechanics )
AC	Aircraft Commander	Aircraft commander
A / C	Aircraft	Aircraft (e.g. airplane , helicopter , hot air balloon )
ACA	Arctic control area	North Pole Control District
ACAC	Air Carrier Advisory Circular
ACAM	Aircraft Continuing Airworthiness Monitoring	Airworthiness review (documentation and aircraft)
ACARE	Advisory Council for Aeronautics Research in Europe	organization
ACARS	ARINC Communications Addressing and Reporting System	Airplane Telex, sends data via SITA to the airline's headquarters
ACAS	Airborne Collision Avoidance System	ICAO and European name for the Traffic Alert and Collision Avoidance System - TCAS; Anti-collision warning system
ACC	Area Control Center ; Area Control	Air traffic control center, district control center, district control; the US designation is Air Route Traffic Control Center (ARTCC)
ACC	Air Combat Command	Air Command (e.g. USAF ACC)
ACC	Accumulated	cumulative
ACC	Accepted	accepted
ACC	Automatic code change	accepted
ACCA	Advanced Composite Cargo Aircraft	a composite version of the Dornier 328
ACCC	Airport Command Control Center
ACCEL	Acceleration, Accelerate	acceleration
ACCID	Initial Notification of an Aircraft Accident
ACCID	Accident	accident
ACD	Airways Clearance Delivery
ACDM	Airport Collaborative Decision Making	Concept for optimizing ground processes at European airports ( Airport Collaborative Decision Making )
ACDO	Air Carrier District Office
ACE	Actuator Control Electronics
ACE	Aviation Combat Element
ACESS	Advanced Cabin Entertainment Service System	( Boeing 747 )
ACF	Air Combat Fighter	Fighter aircraft - e.g. B. F-16 Fighting Falcon
ACFT	Aircraft	Aircraft , airplane
ACG	Austro Control (ATC)	Austro Control GmbH (Austrian company for civil aviation)
OH	Aircraft Change	Aircraft change; Aircraft type change
ACI	Airports Council International
ACI	Analytical Condition Inspection
ACI-Europe	Airports Council International Europe
ACIPS	Airfoil and Cowl Ice Protection System
ACJ	Airbus Corporate Jetliner	Another name for Airbus A319 CJ - business aircraft based on the Airbus A319
ACK	Acknowledge (message)	Confirmation message, confirm message
ACKG	Acknowledge	confirm, acknowledge
ACL	Anti Collision Light	Position light , position light
ACL	Aircraft List
ACL	Altitude Check Location; Altimeter Check Location	Altimeter control point
ACLS	Automatic Carrier Landing System	automatic landing system on aircraft carriers ( aircraft carrier # landing )
ACLT	Actual Calculated Landing Time
ACM	Aircraft Condition Monitoring ( Airbus A340 )
ACM	Additional crew member	additional crew member (usually on the jump seat , possibly a flight trainer in the cockpit or an FAA line check pilot) - also referred to as an extra crew member (XCR)
ACM	Air cycle machine	Cooling turbine
ACM	Air Combat Mission	Air combat use
ACM	Airport Certification Manual
ACM	Air cargo manifest
ACM / ACT	Air Combat Maneuvering / Aircrew Coordination Training	Aerial combat training
ACMF	Airplane condition monitoring function
ACMI	Aircraft, crew, maintenance, insurance	Aircraft, crew, maintenance, insurance; ACMI carrier; ACMI Air Freight Company; the customer rents the aircraft including crew, maintenance and insurance
ACMP	Alternating Current Motor Pump	(an electrically operated hydraulic pump - operated with alternating current)
ACMS	Airplane Condition Monitoring System	Aircraft condition monitoring system
ACN	Aircraft Classification Number	Load action classification number
ACR	Aircraft Classification Rating
ACO	Aircraft Certification Office
ACO	Airspace Co-ordination Order
ACP	Audio control panel
ACP	Airlift Command Post
ACP	Acceptance (message type designator)
ACPA	Air Canada Pilot Association	Canadian Pilots Association
ACPI	Aileron Control Position Indicator	Aileron display (shows the position of the ailerons )
ACPT	Accept, accepted	accept, accepted
ACQ	Acquisition	(e.g .: ALT ACQ - a mode of the autopilot - Boeing)
ACR	Aircraft	plane
ACRM	Advanced Crew Resource Management
ACR OPNS	Aircraft Operations	Flight operations
ACRU	Air Conditioning Refrigeration Unit
ACS	Air conditioning system	air conditioning
ACS	Acceptance of Standby Paper	accepted by the standby list
ACS	Attitude Control System
ACS	Auxiliary Control System	( McDonnell Douglas MD-90 - electronic control system for the elevator load feel and the rudder limitation)
ACT	Active, Activated	in operation, put in operation, operation
ACT	Additional center tank	Additional tank in the fuselage
ACT	Australia Central Time	( Time zone )
ACT	Air Combat Training	Aerial combat training
ACT	Advanced Control Technology
ACTLW	Actual Landing Weight	actual landing weight ( Landing Weight )
ACTTOW	Actual Take-Off Weight	actual takeoff weight
ACTVTY	Activity	activity
ACTZFW	Actual Zero Fuel Weight	actual empty tank weight ( zero fuel weight )
ACU	Air conditioning unit	Air conditioning unit
ACU	Antenna / Coupler Unit	see omega navigation procedure
ACU	Aircraft control unit	Aircraft control center, flight operations control center

to the previous section - AC

AD

(to the next section - AE) ... (to the beginning of the list)

A / D; AD	Aerodrome	Airfield ; Synonym for the English airport and airfield; However, this English distinction is not identical to the more strictly defined German distinction between airport (large; with strict legal regulations) and landing site (smaller; not so strict regulations)
A / D; AD	Analog / digital, analog to digital	analog / digital ( analog-digital converter )
AD	Airworthiness Directive	Airworthiness directive
AD	Additional	additionally
ADA	Advisory Airspace, Advisory Area	Advisory district; Air Traffic Advisory District
ADA	Airline Deregulation Act
ADAHRS	Air Data Attitude Heading Reference System	An AHRS (Attitude and Heading Reference System) or AHS with an integrated ADC (Air Data Computer)
ADAO	Authorized Design Approval Organization
ADAPT	Air Traffic Management Data Acquisition, Processing and Transfer
ADAVCO	Advanced Aviation Consultants	German company for strategy consulting for the aviation sector (for strategy solutions, route and fleet planning) - an MRO consultant - see: aircraft maintenance
ADC	Aerodrome Chart
ADC	Air data computer	Air data computer for determining the speed and flight altitude from the flow speed using a pitot tube and the static air pressure. See also airspeed indicator
ADC	Analog to digital converter	Analog-to-digital converter - ADU
ADCM	Air Data Computer Module	Assembly of the Air Data Computer within an ADAHRS
ADD	Acceptable deferred defects	Literally: permissible deferred defects: Findings on an aircraft that do not need to be rectified immediately. Will be entered in the aircraft log and done at a later date. The guidelines of the authorities must be adhered to, which determine how long you can continue to fly with such a defect
ADD	Addition, Additional	Addition, in addition
ADDFU	Additional fuel	Additional fuel
ADDFUEL	Additional fuel	Additional fuel
ADDN; ADD	Addition, Additional	Addition, in addition
ADDU	Air data display unit	(electronic) flight data display
ADECS	Adaptive engine control system
ADEP	Aerodrome Of Departure	Take-off airport
ADES	Aerodrome Of Destination	Destination airport
ADF	Automatic Direction Finder (Automatic direction finding equipment)	Automatic direction finder; Automatic direction finder; Radio compass; Radio compass
ADF	Air defense fighter	z. B. F-16 - with new avionics, improved radar and suspensions for AIM Sparrow
ADF / AAF	Aircraft Deicing / Anti-icing Fluid	Aircraft de-icing fluid
ADG	Air-Driven Generator	Another name for Ram Air Turbine (e.g. at Canadair )
ADGS	Aircraft Docking Guidance System	Visual docking guidance system
ADI	(Electromechanical) Attitude Director Indicator or Attitude Direction Indicator	Attitude indicator, artificial horizon
ADI	Anti Detonation Injection, Water Injection	explosion-proof injection; Injection of water or a water / ethanol mixture (50:50) (also water / methanol) into the cylinder of the internal combustion engine (power unit), usually only for a few minutes due to the high engine load - e.g. B. at the start to tickle even more power from the engine; Without ADI water injection, the engines heat up very strongly, which is the limiting operating parameter.For cooling, a rich fuel mixture is therefore injected into the cylinder without ADI injection in order to cool with the excess fuel - expensive but effective, which makes the fuel-air- Combustion ratio not optimal because it is too rich; with ADI cooling, the same amount of fuel is injected into the cylinders to obtain an optimal fuel-air ratio for optimal combustion; The ADI cools the cylinders from the inside - the additional (well-dosed) water injection (example: the Rolls-Royce Griffon engine requires 0.5 lbs of water for 1 lbs of fuel for ADI); ADI does not give the engine more power, but only allows a higher power setting without detonations (pre-ignition or misfire); the cooling comes from the evaporative cold of the water; the added alcohol facilitates and accelerates the cooling and prevents the water from freezing; ADI allows the mixture to be leaned from “maximum rich” to “best power setting”; was used for large piston-powered aircraft from World War II to 1950; ADI prevents pre-ignition due to the high boost pressure.
ADIRS	Air Data and Inertial Reference System
ADIRU	Air Data Inertial Reference Unit	at Airbus and Boeing
ADIZ	Air Defense (and) Identification Zone	Flight control zone; Air defense zone
ADJ	Adjacent	neighboring, next
ADJ	Adjusted; Adjustment	customized; Adaptation
ADLY	Arrival delay
ADM	administration	administration
ADM	Aeronautical Decision Making
ADM	Air Data Module	Module for converting air pressure values ​​into digital values ​​(Pitot / Static)
ADO	Aerodrome Office
ADP	Air Driven Pump, Air Driven Demand Hydraulic Pump	Pump driven by compressed air (in contrast to the Engine Driven Pump - EDP - pump driven by the engine)
ADP	Airside Driver permit
A-DPI	ATC Departure Planning Information Message
ADR	Advisory route	Air traffic advisory route
ADR	Airport departure rate
ADR	Air Data Reference	Part of the ADIRS
ADRs	Address	6NBSP,
ADRT	Alternate departure route
ADS	Automatic Dependent Surveillance	Automatic on-board monitoring; Position display of aircraft
ADS	Address	address
ADS-B	Automatic Dependent Surveillance - Broadcast	the system continuously sends the GPS data of the aircraft position, as well as the aircraft registration number, altitude, speed vector and flight direction to all other aircraft and air traffic control via radio. This information can be displayed in the cockpit using the Cockpit Display of Traffic Information - CDTI
ADS-C	Automatic Dependent Surveillance - Contract
ADSU	Automatic Dependent Surveillance Unit
ADT	Adult	Adult
ADU	Analog to digital converter (ADC)	Analog-to-digital converter
ADV	German Airports Association	Working group of German airports
ADV	Advisory Area	Advisory District
ADV	Advance; Advanced
ADV	Air Defense Variant	Air defense variant, air defense alternative
ADVS	Advise	(e.g. to air traffic control)
ADZ	Advise	consultation

to the previous section - AD

AE

(to the next section - AF) ... (to the beginning of the list)

A&E	Aircraft and Engine	Airplane and engine; Aircraft and Engine Mechanic (to match: A&E Mechanic's school)
AEA	Association of European Airlines	Association of European Airlines
AEADC	Aircraft Engine & Accessory Development Co.	( Aircraft Engine Manufacturer - USA, Jenkinstown, PA)
AED	Automated External Defibrillator	Automated external defibrillator
AEEA	Aft Electronic Equipment Area	( Lockheed L-1011 TriStar )
AEEC	Airlines Electronic Engineering Committee
AeCS	Swiss Aeroclub	Aero Club in Switzerland
AEIS	Aeronautical Enroute Information Service
AEM	Audio entertainment multiplexer
AENA	Aeropuertos Españoles y Navegación Aérea	Organization of the Spanish airport and air traffic control
AEO	Air Electronics Officer
AEO	All engines operating	Operating condition: all engines give power
AEP	Aerodrome Emergency Plan
AER	Approach end of runway	the first piece of the runway that is available for touchdown
AER	Authorized Engineering Representative
AERAD	Flight Information Publication (produced by Racal Aerad)
AERADIO	Air radio
AERIS	Automatic enroute information service
AERO	Aerodrome	Airfield (airport?)
AERO	Aircraft Engines Repair Overhaul	Lufthansa subsidiary
AERO	Aviation Education Review Organization	Organization to review flight training
AES	Aerodrome Emergency Service	Airport emergency services
AES	Aircraft Earth Station
AET	Australia Eastern Time	(Time zone)
AEW	Airborne Early Warning	airborne early warning
AEW & C	Airborne Early Warning and Control

to the previous section - AE

AF

(to the next section - AG) ... (to the beginning of the list)

AF	Airforce	air force
AF	Alternate fuel	Reserve fuel for the flight to the alternate airport (Alternate)
AF AUX	Airforce Auxiliary Fell	(inactive) alternate of the Luftwaffe
AFB	Airforce Base (USA)	Air force base, military air base
AFB	Automatic fuel burn	( McDonnell Douglas MD-80 - a system of float switches that regulate the center tank's fuel pump to reduce the risk of wing icing)
AFC	Automatic Frequency Control
AFCAC	African Civil Aviation Commission
AFCAS	Automatic Flight Control and Augmentation System ( Fokker 100 )
AFCS	Automatic Flight Control System
AFD	Adaptive Flight Display	selectable screen display
A / FD; AFD	Airport / Facility Directory	Airport / flight facility directory
AFDCS	Automatic flight director computer	Autopilot - Boeing 777
AFDS	Autopilot flight director system	a component of the Auto Flight System (AFS), which in turn is part of the Flight Management System (FMS)
AFDX	Avionics Full DupleX Switched Ethernet	Protocol for communication between aircraft systems (avionics)
AFE	Above Field Elevation	the absolute height above the highest point in the landing area of ​​a runway
AFF	Affirmative (Yes)	that is correct; correctly; Yes; OK
AFFF	Aqueous film-forming foam	Extinguishing foam system on aircraft carriers
AFGS	Automatic Flight Guidance System
AFI	Air Force Instruction (USA)	Air Force Instructions (USA)
AFIL	Flight Plan Filed In The Air, Air-Filed Flight Plan	Flight plan submission in the air; flight plan posted during the flight
AFIS	Aerodrome Flight Information Service	Aerodrome flight information service
AFIS	Airborne Flight Information System
AFIS	Automatic Flight Information System
AFJ	Arctic Front Jet	(Weather key for METAR and TAF )
AFL	Above field level	above space level
AFL	Air flow	6NBSP,
AFLD	Airfield	Airfield
AFM	Airplane Flight Manual, Aircraft Flight Manual	Aircraft manual; another name for: Pilots' Operation Handbook - POH; (FAA approved for a specific aircraft type)
AFM	Yes, affirm, affirmative, that is correct	yes, I confirm that it is correct
AFMC	Air Force Materiel Command
AFM-DPI	Airplane Flight Manual - Digital Performance Information
AFMS	Airplane Flight Manual Supplements	Additions to the flight manual
AFN	ATS Facilities Notification
AFOD	Army Flight Operations Detachment (US Army)	U.S. Army Air Operations Branch
AFOLTS	Automatic Fire Overheat Logic Test System
AFP	Airspace Flow Program
AFP	ATC flight plan	Flight plan for the air traffic control service
AFR	Air Fuel Ratio	Air-fuel mixture - is influenced by leanen (emaciation)
AFRC	Air Force Reserve Command
AFRC	Aircraft Flight Risk Clause
AFS	Aeronautical Fixed Service	fixed telecommunication service
AFS	Auto Flight System, Automatic Flight System	a component of the Flight Management System (FMS)
AFS	Advanced Function Simulator
AFSBw	Office for air traffic control of the Bundeswehr	military air traffic control in Germany
AFSC	Aggregated Friction Seal Coat
AFSK	Audio frequency shift keying	a digital mode of radio communication
AFSOK	Air Force Special Operations Command
AFSS	Automated Flight Service Station	Automatic flight information service
AFT	nach	after (time)
AFT	Aft	Rear , rear
AFTN	Aeronautical Fixed Telecommunication Network	Fixed telecommunications network
AFVG	Anglo-French Variable Geometry	Anglo-French swing wing
AFWA	Automatic Flight Weather Advisory	Automatic flight weather announcement

to the previous section - AF

AG

(to the next section - AH) ... (to the beginning of the list)

A / G	Air / Ground, Air-To-Ground Communication Station	Board / bottom
AG	Arresting gear	Fix landing gear (aircraft) / aircraft interception system e.g. B. nets or rope catching systems on military airfields or aircraft carriers
AGA	Unit Load Device (ULD)	IATA ID code for a specific type of air cargo container - 20-foot container
AGA	Aerodromes, Air-Routes And Ground Aids	Airfields, air routes and ground support (a chapter in the AIP )
AGA	Again	again
AGARD	Advisory Group for Aeronautical Research and Development (NATO)	the agency changed its name to NATO's Research & Technology Organization, RTO
AGATE	Advanced General Aviation Transport Experiments	Consortium of NASA, FAA, aircraft industry and universities - to create the Small Aviation Transportation System (SATS) as an alternative to short-distance car journeys
Conditions	Accessory gear box	(Gearbox that draws energy from the turbine shaft in order to operate "additional devices")
AGC	Automatic gain control
AGC	Aircraft General Declaration; General Declaration (Air)	required for international flights, the captain is responsible for it and signs it; contains: details about the crew, aircraft registration, flight number, operator, flight route, passengers (how many got on and off where), health declaration (except air sickness , sick or injured people on board, people with signs of illness; people with signs of illness who have already boarded the aircraft have left a layover, disinfection measures during the flight); Two copies of the airport authorities must be given to the airport authorities at each departure and arrival airport, as well as in the case of intermediate stops, and on request to customs
AGE	Aircraft Ground Equipment
AGFS	Aviation Gridded Forecast System
AGHT	Actual Ground Handling Start Time
AGI	Advanced Ground Instructor
AGI	Air Ground Indication System	( Boeing )
AGL	Above ground level	Height above ground (see also AMSL )
AGM	Air-to-ground missile	Air-to-surface missile
AGN	Again	again, again
AGNIS	Azimuth Guidance Nose-in-Stand
EGR	Active Guard Reserve	(Part of the United States Army National Guard ) see: United States National Guard and Air National Guard
AGRIC	Agricultural	agricultural

to the previous section - AG

AH

(to the next section - AI) ... (to the top of the list)

AH	Artificial Horizon	artificial horizon
AH	After hours
AH	Alert Height
AHM	Airport handling manual
AHP	Army heliport	Army helipad
AHRS	Attitude and Heading Reference System	Flight attitude / course display system - a navigation system (consists of three accelerometers and two gyroscopes in the MD-80 , the attitude and direction information is fed into the aircraft systems and displayed in the cockpit)
AHS	Digital Strapdown Attitude and Heading Reference System	An AHRS with three gyroscopes and accelerometers, each arranged orthogonally. The sensors are firmly connected to the aircraft structure and are not arranged on a frame platform. The position angle and course angle calculation is carried out via a digital computer and not via a servo drive on a platform. By avoiding moving parts, strapdown systems are more robust and have a longer service life.

to the previous section - AH

AI

(to the next section - AK) ... (to the beginning of the list)

AI	Attitude Indicator	Attitude indicator / artificial horizon
A / I	Anti ice	Ice protection / de-icing
AIAA	American Institute of Aeronautics and Astronautics	American Aerospace Institute
AIBT	Actual in-block time
AIC	Aeronautical Information Circular	Aviation information circulars; Aviation information sheet
AICB	Alliance Internationale Contre le Bruit	European association against the harmful effects of air traffic
AIDC	ATS Interfacility Data Communication	ICAO protocol for the automated transfer of control and communication from one controller to another, e.g. As when an aircraft the FIR changes
AIDS	Aircraft Integrated Data System	(e.g. Quick Access Recorder - QAR - for AIDS - Boeing 747 ; Airbus )
AIDS	(Aviation) Accident / Incident Data System	public database of data and statistics collected by the Federal Aviation Administration (FAA)
AIDU	Aeronautical Information Documents Unit (RAF)
AIG	Accident Investigation	Aircraft accident investigation (Germany: Federal Office for Aircraft Accident Investigation ; USA: National Transportation Safety Board )
AIL	Aileron	Ailerons
AIL	Autopilot interlock
AIM	Aeronautical Information Manual ; Airmen's Information Manual	Pilot's manual
AIM	Air (to air) interception missile	Air-to-air missile , air-to-air interceptor, air-to-air defense missile
AIMS	Airbus Industries Material Specification	Airbus material specification
AIMS	Aircraft Integrated Monitoring System	Aircraft-integrated condition monitoring system
AIMS	Aircraft Information Management System
AIP	Aeronautical Information Publication	Aviation manual
AIP-AMD	AIP amendment	Correction to the AIP
AIP-SUP	AIP supplement	Supplement to the AIP
AIP-VFR	AIP-Visual Flight Rules	AIP chapter for visual flight
AIR	Airworthiness	Airworthiness
AIR	Aerospace Information Report
AIRAC	Aeronautical Information Regulation and Control	System for regulating the dissemination of aviation information (see NOTAM ), the AIRAC cycle is every 28 days (Thursday) (AIRAC cycle - update cycle - e.g. AIRAC cycle 0610)
AIRC	Aeronautical Information and Control
AIREP	Air report (spoken form)	Flight report (position; weather conditions; transmitted orally in flight)
AIRIMP	ATC and IATA Reservations Interline Message Procedure	Standard format for communication between airlines
AIRMET	Airmen's Meteorological Information	Weather advisory system for air traffic
AIRPROX	Air proximity hazard	Aircraft approach (see also Near Miss )
AIS	Aeronautical Information Service	Flight advice service - Air traffic control service ( DFS )
AIS-C	AIS center
AIT	Automated information transfer
AIU	Audio interface unit
AIV	Anti icing valve ( A320 )

to the previous section - AI

AK

(to the next section - AL) ... (to the beginning of the list)

Akaflieg	Academic flying groups	(at technical colleges and universities)
LFS	Unit Load Device (ULD)	IATA ID code for a specific type of air cargo container - LD3 container
AKH	Unit Load Device (ULD)	IATA ID code for a specific type of air cargo container - container
AKN	Unit Load Device (ULD)	IATA ID code for a specific type of air freight container - LDSCont. m. fixed door / VAL

to the previous section - AK

AL

(to the next section - AM) ... (to the beginning of the list)

AL	General aviation	General aviation
AL	Airborne laser	airborne laser weapon
AL2004	NDB Address List 2004 (a publication, produced by Malmoe Shortwave Club)
ALA	Approach and Landing	Approach and landing
ALA	Approach and Landing Accident	Approach and landing accident
ALA	Authorized Landing Area	approved landing area
ALA	Aircraft landing area	(Australia)
ALAR	Approach and Landing Accident Reduction	Reduction of accidents on approach and landing (working group of the Flight Safety Foundation , FSF)
ALARP	As Low as Reasonably Practical
ALCE	Airlift control element
ALD	Actual landing distance; Available landing distance	available landing distance; current landing route
ALDT	Actual landing time
ALERFA	Alert phase	Readiness level (for air emergencies; see SAR )
ALF	Accurate positioning by low frequency	Deutsche Telekom service for the transmission of DGPS correction data
ALF	Auxiliary Landing Field	Emergency landing field
ALI	Airworthiness Limitation Item	Component with a limited lifetime
ALLTOF	Allowable Take Off Fuel
ALM	alarm	alarm
ALM	Aircraft landing minima
ALO	Air Liaison Officer	Liaison officer
ALPA	Air Line Pilots Association	American Pilots Association (the largest airline pilots union; 40,000 members; USA and Canada)
ALR	Alerting Message	Alert message
ALRT	Alert	alarm
AS	Approach lighting system	Approach lighting system
AS	Autothrottle Limit Switch
ALSF	Approach Light System with Sequenced Flashing Lights in ILS	Approach beacon with sequence lights (divided into ALSF-1 and ALSF-2; ALSF-2 also has a row of red lights on the last 1000 ft on the sides)
ALSF-1	Approach Light System with Sequenced Flashing Lights in ILS	Standard: 2400 feet very powerful approach lighting system with sequence lights (Category 1 configuration)
ALSF-2	Approach Light System with Sequenced Flashing Lights in ILS	Standard: 2400 feet very powerful approach lighting system with sequence lights (Category 2 configuration)
OLD	Alternating	alternately
OLD	Alternate (Airport)	Alternative airport (for the alternative landing )
OLD	Alternate (system)	Reserve system
OLD	Altimeter	Altimeter
OLD	Altitude	Flight altitude (with QNH setting - i.e. above the sea level), altitude above mean. Sea level
ALT ACQ	Altitude Acquire
ALT HOLD	Altitude Hold	Hold altitude (mode on autopilot )
ALTM	Altimeter	Altimeter
ALTN	Alternate Aerodrome	Alternative airport (see also airport )
ALTN	Alternating
ALTRV	Altitude reservation
ALT / S	Altitude Select
ALW	Allowable Landing Weight	permissible landing weight
AMGR	Airport Manager

to the previous section - AL

AT THE

(to the next section - AN) ... (to the beginning of the list)

AT THE	Amplitude Modulated, Amplitude Modulation	Amplitude modulation
AT THE	Aircraft Marshaller
AMA	Area Minimum Altitude	Minimum district height
AMA7	Unit Load Device (ULD)	IATA ID code for a specific type of air cargo container - 10-foot container with flexible door
AMA8	Unit Load Device (ULD)	IATA ID code for a specific type of air cargo container - 10 foot fixed door container
AMAN	Arrival manager
AMASS	Airport Movement Area Safety System
AMB	Amber	amber (weather key - military - main cloud base 200 ft, ground visibility 0.8 km) (see: color code )
AMB	Ambient	ambient
AMC	Acceptable Means of Compliance	Requirements of the EASA or JAA
AMC	Air Mobility Command
AMC	Automatic Mixture Control
AMC	Aviation Medical Center Aeromedical Center	Aviation Medical Center ( pilot test )
AMD	Amend; Amended	Change, changed (weather key)
AMD	Aircraft Manufacturing and Development Co.	an aircraft manufacturer in the USA (Georgia), - AMD Alarus and AMD Zodiac
AMDT	Amendment (AIP Amendment)
AME	Aviation Medical Examiner	Aviation Doctor
AME	Aircraft Maintenance Engineer
AMEL / S	Airplane Multi-Engine Land / Sea
AMES	AMES Type 7000	Navigation system of the Royal Air Force during the Second World War (synonymous with grid navigation )
AMF	Unit Load Device (ULD)	IATA ID code for a specific type of air cargo container
AMG	Unit Load Device (ULD)	IATA ID code for a specific type of air cargo container - 10-foot container with flexible door
AMHS	Air Traffic Services (ATS) Message Handling System	often referred to as the “Aeronautical Message Handling System”, part of the Aeronautical Fixed Service
AMI	Airline Modifiable Information
AMI	Aircraft, maintenance, insurance	Aircraft, maintenance, insurance; the customer rents the aircraft including maintenance and insurance, but without a crew (that would be ACMI)
AMLCD	Active Matrix Liquid Crystal Display	Active matrix liquid crystal display (= LC screen with enhanced luminosity) - e.g. B. in the F-15 Eagle
AMM	Aircraft Maintenance Manual	Aircraft maintenance manual
AMOC	Alternative Methods of Compliance	(when dealing with an airworthiness directive )
AMP	Amplifier	amplifier
AMP	Avionics Modernization Program	( Boeing )
AMP; AMPS	Amperes	amp
AMPS	Air Mission Planning System
AMS	Aeronautical Mobile Service	Mobile aeronautical service
AMS	Avionics Management System	(military analogy to the Central Display Unit - CDU - the Flight Management Computer - FMC)
AMSL	Above mean sea level	above mean sea level
AMT	Aviation Maintenance Technician	Airplane service technician
AMU	Audio management unit	( Boeing 747 )
AMVER	Automated Mutual-Assistance Vessel Rescue System
AMXS	Aircraft / Helicopter Maintenance Squadron	( Air National Guard - ANG)

to the previous section - AM

ON

(to the next section - AO) ... (to the beginning of the list)

ON	Alpha / Numeric	Alphanumeric characters
ANAE	French National Air and Space Academy	Académie Nationale de L'Air et de L'Espace
ANC	Active Noise Control System	see: Active noise reduction
ANC	Air Navigation Commission	(ICAO)
ANCMT	Announcement	6NBSP,
AND	Aircraft nose down	( Trim )
AND S	Accelerate North; Decelerate South	Reminder for compass errors - turning errors of the magnetic compass on east or west courses: Accelerate - it turns north, braking - it turns south
ANG	Air National Guard (USA)	US National Guard airborne units
ANGB	Air Nautical Guard Base
ANL	Automatic noise limiter	automatic interference suppression and limitation (in high and low frequency amplifiers)
NOTE	ATFN notification message
ANN	Announce; Annunciator Panel	Notification, display and warning board
ANNUNC	Annunciator	Display (lamp)
ANO	Air Navigation Order (UK)	Aviation Act (Great Britain)
ANP	Actual navigation performance	also known as Estimated Position Error (EPE)
ANP	Air navigation plan	air traffic control (EUR ANP)
ANR	Active noise reduction	Active noise cancellation ; Amplifier-controlled noise suppression (through phase shift, e.g. in headphones)
ANS	Air Navigation Services	see: Austro Control (Austrian Society for Civil Aviation)
ANS	Ambient noise sensor	( Boeing )
ANSP	Air Navigation Service Providers	Air traffic control organization (see air traffic control )
ANT	Antenna	antenna
ANU	Aircraft nose up	( Trim )

to the previous section - AN

AO

(to the next section - AP) ... (to the beginning of the list)

A0	Non modulated transmission	Toneless modulation (BFO - Beat Frequency Oscillator - required) (Notation: A zero - the number - not the letter o)
AO	Analog output
AO	Aircraft operator	Aircraft operator
AOA	Aircraft Operating Area; Aircraft Operational Area
AOA	At or above
AOA	Angle of attack	Angle of attack (alpha)
AOB	Angle of Bank	Bank angle
AOB	At or below
AOBT	Actual Off Block Time	Actual time of the first movement by an aircraft under its own power for the purpose of take-off
AOC	Aerodrome Obstacle Chart	Airfield obstacle map
AOC	Air Operator Certificate ; Air Operating Certificate	Air operator certificate
AOC	Area of ​​Coverage	covered area (radio reception)
AOC	Airline Operating Committee Airline Operator Committee
AOC	Airline Operational Control	AOC messages - are ACARS received
AOC	Air / Oil Cooler
AOE	Airport / Aerodrome of Entry (for Initial Entry into the Country)	Airfield with customs control
AOG	Aircraft on ground	Airplane on the ground - for technical reasons (defective) - because the MEL is not met (minimum equipment list)
AOI	Aircraft Operations Inspection
AOM	Aircraft Operating Manual	Aircraft operating manual; Aircraft manual (for the aircraft type) (Flight Operations Manual)
AOM	Aerodrome Operating Minima	Weather minima of an airfield
AOPA	Aircraft Owners and Pilots Association	International Association of Aircraft Owners and Private Pilots.
AOR	Area of ​​Responsibility
AoS	Angle of sideslip	Sliding angle (beta)
AÖV	Working group of Austrian airports

to the previous section - AO

AP

(to the next section - AQ) ... (to the top of the list)

AP; A / P	Auto pilot	Autopilot
AP	Airport	Airport
AP	Autopilot	Autopilot , automatic flight control
AP	Approach	Approach; Landing approach
AP	Assistant Purser	Flight attendant
A&P	Airframe and Powerplant Mechanic	Aircraft mechanic cell and engine
APA	Allied Pilots Association	American Airlines Pilots Association
APAPI	Abbreviated Precision Approach Path Indicator	Shortened precision glideslope lighting
APATSI	Airport Air Traffic Services Interface
APB	Auxiliary Power Braker
APC	Area Positive Control
APC	Approach frequency	Approach frequency
APC	Approach control	Approach control; approach
APC	Automatic pitch control	automatic stall warning
APCH	Approach	Landing approach , approach
APD	Automated Problem Detection
APD	Approach Progress Display	( Boeing 747 )
APEX	APplication EXecutive
AP / DF	Approach and Direction Finding Facility
APL	Airplane	( Airplane )
APM	Airplane performance monitoring
APN	Apron Control	Radio-supported movement control of aircraft and operating vehicles by the airport operating companies on the apron
APP	Approach	Approach; Landing approach
APP	Approach Control Office	Approach control point
APP	Approach Control Service	Approach control service
APP	Approach control	Approach control; approach
APP	appendix	attachment
APPC	Appendix C	Appendix C.
APP CON	Approach control	Approach control; approach
APPR	Approach	Approach ( landing approach )
APPROP	Appropriate	suitable, suitable
APPROX	Approximately	approximately
APPX	Approximate; Approximately	approximately
APR	April
APR	Apron	Apron
APR	Automatic power reserve
APR	Approach	Landing approach
APR CON	Approach control	Approach control
Apron	Apron	Apron, parking area, apron or also for apron control
APRT	Airport	Airfield , airport
APRX	Approximate; Approximately	Approximately, approximately
APS weight	Aircraft Prepared-For-Service Weight	Weight of the aircraft when it is ready for maintenance; Empty weight with complete equipment - but without crew, fuel and cargo; APS Weight + adjustments + total traffic load = ZFW (?) The APS weight is the basic weight + the standard crew (2 or 3 people) + the weight of the kitchen equipment (pantry?). The more passengers, luggage and cargo are on board, the higher the ZFW will be.
APT	Airport	Airport
APU	Auxiliary power unit	Auxiliary power unit ; Auxiliary unit; Power generator; Auxiliary turbine
APUC	Auxiliary power unit controller	( Boeing 777 )
APV	Approve	approve, confirm
APV	Approach Procedures with Vertical Guidance
APX	appendix	attachment
APW	Area Proximity Warning	Warning of airspace violation

to the previous section - AP

AQ

(to the next section - AR) ... (to the beginning of the list)

AQ67	Unit Load Device (ULD)	IATA ID code for a specific type of air cargo container - 10-foot container with flexible door
AQA3	Unit Load Device (ULD)	IATA ID code for a specific type of air cargo container - 10-foot container with flexible door
AQA7	Unit Load Device (ULD)	IATA ID code for a specific type of air cargo container - 10-foot container with flexible door
AQP	Advanced Qualification Program	FAA's new training philosophy
AQR	Airline Quality Rating
AQZ	Area QNH zone

to the previous section - AQ

AR

(to the next section - AS) ... (to the beginning of the list)

AR	Aerial refueling	In-flight refueling
AR	Aspect ratio	Extension (wing) (aspect ratio on wing)
A / R	Altitude rate	6NBSP,
ERA	Aircraft Research Association
ERA	Airborn Radar Approach	ARA approaches
ARAC	Army Radar Approach Control
ARAC	Aviation Rulemaking Advisory Committee
ARAC	Airworthiness Assurance Working Group
ARB	Air Reserve Base
ARC		Bow (approach) with constant DME
ARC	Airworthiness Review Certificate
ARC	Abnormal Runway Contact	abnormal runway contact
ARCAL	Aircraft Radio Control of Aerodrome Lighting	identical to: Pilot Controlled Lighting
ARF	Air refueling routes
ARFF	Aircraft Rescue and Fire Fighting (Personnel)
ARFF	Airport Rescue and Fire Fighting
ARFOR	Area forecast	Area weather forecast
ARH	Armed Reconnaissance Helicopter	armed reconnaissance helicopter
ARI	Aileron / Rudder Interconnect
ARINC	Aeronautical Radio Incorporated (USA)	"Ground System", which includes all sending and receiving stations, the ARINC computer and the switching system (ACARS)
ARJ	Advanced Regional Jet	see: ARJ21 - a Chinese regional aircraft
ARMET	Forecast Upper Wind and Temperature at Specified Points	High wind and temperature forecast
ARND	Around	approximately
ARNG	Arrange	arrange; to organize
ARO	Air Traffic Services Reporting Office	Reporting office for air traffic services; Air traffic reporting office
ARO	Airport Reservation Office
ARP	Aerodrome reference point , Airport Reference Point	Aerodrome reference point; Coordinates of the central reference point of the airfield
ARP	Air report	Flight report
ARP	Aerospace Recommended Practice
ARPK	Airpark
ARPT	Airport	Airport - in the German-speaking area a larger airfield on which commercial air traffic takes place regularly and on which commercial aircraft are handled
ARPT of ENT	Airport of Entry (for Initial Entry into the Country); AOE	Airfield with customs control
ARR	Arrival message	Landing report; Arrival notification
ARR; ARRVL	Arrive; Arrival	Arrive; Arrivals
ARS	Air Rescue Service (USA)
ARS	Airworthiness Review Staff	Airworthiness review personnel
ARSA	Airport Radar Service Area
ARSR	Air Route Surveillance Radar	Track control radar
ART	Automatic reverse thrust	Thrust reversal
ARTC	Air Route Traffic Control (USA)
ARTCC	Air Route Traffic Control Center	US name for Area Control Center (ACC); Airway control post; Control center for all instrument flights that do not take place near an airport
ARTIS	Autonomous Rotorcraft Testbed for Intelligent Systems	Experimental platform based on a remote-controlled model helicopter
ARTS	Automated Radar Terminal System	Automatic radar system
ARTS	Advanced radar transponder set	Radar device with altitude query

to the previous section - AR

AS

(to the next section - AT) ... (to the beginning of the list)

AS	Altostratus	Altostratus clouds (weather key for METAR and TAF )
AS	Airlift Squadron	Lufttransportgeschwader - LTG - (e.g. Lufttransportgeschwader 62 ) - also English: Air Transport Wing
AS	Aerospace standard
A / S	Airspeed	Airspeed
A / S	Anti skid system
ASA	Autoland Status Annunciator	( Boeing )
ASA	Air Services Agreement
ASAP	As soon as possible	as quickly as possible; as soon as possible
ASAP	Aviation Safety Action Program	(the FAA) - Aviation Safety Enhancement Program - by preventing incidents and accidents
ASAS	Airborne Separation Assurance System
ASAT	Actual startup approval time	(at the airfield)
ASC	Ascend to; Ascending To	Climb up; ascending to
ASC	Aural Synthesizer Card	( Boeing )
AS CL	as cleared	as released
ASCPC	Air Supply and Cabin Pressure Controller, Air Supply Control and Cabin Pressure
ASCTU	(Bleed) Air Supply Control and Test Unit	Bleed air control unit
ASD	AeroSpace and Defense Industries Association of Europe
ASD	Accelerate Stop Distance	Aborted take-off route
ASDA	Accelerate Stop Distance Available	available start abort route
ASDA	Association for Scientific Development of Air Traffic Management in Europe	Association of independent research institutions in the field of ATM in Europe
ASDE	Airport surface detection equipment	Taxiway surveillance radar system (ASDE-3; ASDE-X)
ASDR	Accelerate Stop Distance Required	required takeoff distance
ASE	Unit Load Device (ULD)	IATA ID code for a specific type of air cargo container - 20-foot container
ASECNA	Agence pour la Sécurité de la Navigation Aérienne en Afrique et à Madagascar	African Aviation Authority (analogous to Eurocontrol )
ASEL	Airplane single engine land
ASES	Airplane Single Engine Sea
ASF	Air Safety Foundation	Organization (the AOPA) for flight safety
ASF	Arrival Stream Filter
ASG	ARINC signal gateway
ASH	Autopilot Speed ​​Hold, Airspeed Hold	Maintain flight speed - option on the autopilot (alternatively often also labeled with SPD for speed)
ASI	Airspeed Indicator	Airspeed indicator ; Speedometer
ASI	Aviation Safety Inspector	Flight safety inspector
ASI	Aviation Safety Institute	(UNITED STATES)
ASIR	Airspeed Indicator Reading	is identical to ASI - but with a corrected instrument error
ASK	(Fuel Consumption per) Available Seat Kilometers
A / SKID	Anti skid	Anti-lock braking system similar to ABS in a car
ASL	Above sea level	Above sea level
ASL	Airport slot	Abbreviation for Slot ID
ASLAR	Aircraft Surge Launch And Recovery	Landing and take-off procedure on USAF bases to increase take-off and landing numbers under IMC
ASM	Airspace management
ASM	Available seat miles	World seat miles
ASM	Autothrottle servo motor
ASM	Aircraft Schematic Manual
ASMD	Assumed	assumed
A-SMGCS	Advanced Surface Movement Guidance and Control System	Monitoring system for taxiing traffic at the airport
ASMI	Airport Surface Movement Indicator	Runway surveillance radar (primary radar); Ground motion radar
ASMR	Aerodrome Surface Movement Radar
ASO	Aviation Safety Officer
ASOS	Automated Surface Observing System	Automatic weather observation of the ground weather (slopes and taxiway), this weather observation is carried out and recorded every minute: temperature, dew point, wind, QNH, visibility, cover, precipitation (only a few specially equipped ASOS stations can differentiate between liquid and frozen precipitation)
ASP	asphalt	asphalt
ASP	Audio selector panel
ASPA	Association of South Pacific Airlines
ASPH	asphalt	asphalt
ASR	Airport Surveillance Radar , Aerodrome Surveillance Radar	Airport surveillance radar
ASR	Advanced seat reservation	pre-booked seat
ASR	Distance and Final Glide Computer	Approach and route calculator
ASR / PAR	Published Radar Minimums at this Airport	on the approach charts
ASRS	Aviation Safety Reporting System	Aviation Safety Reporting Procedure (NASA)
ASS TEMP	Assumed temperature	Assumed air temperature - ( Derating - reduction of the engine power for takeoff) - also: Selected Temperature - SEL TEMP
ASSC	Airport Surface Surveillance Capability	Motion surveillance system at the airfield
ASSY	Assembly	Unit, function block, function module
AST	Advanced Supersonic Transport
ASTM	Air traffic flow management	Traffic flow control
ASTOR	Airborne Stand-Off Radar	airborne distance radar
ASTU	Automatic Stabilizer Trim Unit
ASU	Air starter unit	Ground launch device
ASV	Annual Service Volume (of an airport)
ASW	Aft Swept Wing	Sweep (as opposed to the negative sweep - Forward Swept Wing - FSW)
ASW	Alexander Schleicher / Waibel	Gliders from the manufacturer Alexander Schleicher GmbH & Co in Poppenhausen (Wasserkuppe) , which were designed by Gerhard Waibel . ( Type overview )
ASYM	Asymmetrical	asymmetrical

to the previous section - AS

AT

(to the next section - AU) ... (to the beginning of the list)

AT	Air taxi	Air taxi
AT	Air transport	z. B. Freight or Passenger
AT	Autothrottle	automatic thrust control; a component of the Auto Flight System (AFS), which in turn is part of the Flight Management System (FMS) - Throttle
ATA	Actual time of arrival	actual arrival time
ATA	Airport Traffic Area	Aerodrome traffic zone
ATA	Air Transport Association of America	Umbrella organization of US airlines
ATA chapter	Air Transport Association Chapter	Parts catalog; System for the individual components of an aircraft - often part of the part numbers
ATAC	Air Transport of Canada
ATB	Automated Ticket / Boarding Pass	Usual paper ticket (provided with a magnetic strip), not to be confused with etix
ATB	Advanced tactical bomber
ATC	Air traffic control	Air traffic control (FRP)
ATCAA	Air Traffic Control Assigned Airspace	ATC assigned airspace
ATCA	Air Traffic Control Association
ATCAR	ATC Area of ​​Responsibility	Area of ​​responsibility of air traffic control (in Switzerland)
ATCC	Air Traffic Control Center	Air traffic control center; ATC headquarters
ATCF	Air Traffic Control Facility
ATCNEA	Air Traffic Communication and Navigation Engineers Association	Association of Austrian air traffic control engineers and technicians
ATCO	Air traffic controller	Air traffic controller ; Air traffic controller
ATCRBS	Air Traffic Control Radar Beacon System	Air traffic control radar; ATC radar beacon system
ATCSCC	Air Traffic Control System Command Center
ATCT	Air traffic control tower	Air traffic control tower; ATC tower
ATD	Actual time of departure	actual departure time
ATD	Assigned Time of Departure	assigned departure time
ATD	Along-Track Distance
ATE	Actual Time Elapsed; Actual Time Enroute	Actual flight time
ATE	Automatic test equipment
ATF	Aerodrome Traffic Frequency
ATF	Advanced Tactical Fighter
ATF	Aviation turbine fuel
ATFCM	Air traffic flow and capacity management
ATFM	Air traffic flow management	Traffic flow control
ATHPL	Airline Transport Helicopter Pilot License	Traffic helicopter driver license
A / THR	Auto thrust	automatic thrust control ( autopilot )
ATIR	Air Traffic Incident Report	Air traffic incident report
ATIS	Automatic Terminal Information Service	automatic airport information service; Broadcasting of up-to-date airport information; automatic broadcast of landing and take-off information
ATK	Available ton of kilometers	offered ton-kilometers
ATL	Aircraft Technical Log
ATM	Air traffic management	Air traffic management (air traffic management)
ATM	Assumed Temperature Method	( Boeing ) Derating - with SEL TEMP (Selected Temperature) or ASS TEMP (Assumes Temperature)
ATMC	Airspace And Traffic Management Center	Airspace usage center
ATN	Aeronautical Telecommunication Network
ATNS	Air Traffic & Navigation Services South Africa	South African air traffic control
ATO	Actual time over	actual overflight time
ATO	Airline ticket office
ATO	Approved Training Organizations
ATO	Air Tasking Order
ATOG	Air Transport Operations Group
ATOG	Allowable Takeoff Gross Weight
ATOL	Automatic take off and landing	for unmanned aerial vehicles
ATOS	Air Transportation Oversight System
ATOW	Actual Takeoff Weight	actual takeoff weight
ATOW	Assumed Takeoff Weight	(see also PTOW: Planned Takeoff Weight)
ATP	Airline transport	Line bus traffic
ATP	Airline transport pilot	Traffic pilot
ATPCS	Automatic Takeoff Power Control System
ATPL	Commercial pilot license	Commercial aircraft driver's license - highest pilot license
ATPR	Airline Transport Pilot Rating
ATR	Avions de Transport Régional	Italian-French aircraft manufacturer ( ATR 42 and ATR 72 )
ATR	Automatic thrust restoration	( McDonnell Douglas MD-80 - in take-off mode, in the event of an engine failure, automatically pushes the thrust lever forward to the best speed for go - around )
ATS	Air Traffic Services (outside regulated airspace)	Air traffic services
ATS	Air Traffic Service Route
ATS	Access test system	( Boeing )
ATS	Aeronautical Telecommunication Service	Telecommunications network
ATS	Autothrottle System	Automatic thrust control; a component of the Auto Flight System (AFS), which in turn is part of the Flight Management System (FMS) - Throttle
ATS	Approach turn stall	Stall during the approach curve (curve approach in the military traffic pattern )
ATSB	Australian Transport Safety Bureau	analogous to the americ. NTSB - Australian Aviation Safety Authority
ATT	Attitude	Position (longitudinal and transverse slope)
ATT	Attitude (Hold)	Hold pitch and roll - mode on the autopilot - for procedure turns or holding loops
ATT	Attended
ATTAS	Advanced Technologies Testing Aircraft System	an aircraft of the type VFW 614 is operated by the German Aerospace Center ( DLR ) for the ATTAS project - to simulate flight characteristics of an aircraft type that has not yet been built - to validate calculations - with a freely programmable control system
ATTN	Attention	Attention, note
ATTND	Attendant	Flight attendant
ATTOT	Aircraft operator target take-off time
AT-VASI	Abbreviated Tee Visual Approach Slope Indicator
ATZ	Aerodrome Traffic Zone	Aerodrome traffic zone

to the previous section - AT

AU

(to the next section - AV) ... (to the beginning of the list)

AUA	Austrian Airlines	Austrian airline
ON	Australian Ultralight Federation	the old name for Recreational Aviation Australia - the umbrella organization of microlight pilots in Australia
AUG	August	August
AUG	augmentation	Enlargement, enlargement
AUDITORIUM	Advanced Ultra-Light Airplane
AUSOTS	Australian flexible tracks	analogous to OTS tracks or PACOTS tracks
AUTH	Authorized	approved
AUTH	Authority	Authorities
AUTOMOBILE	Automatic	Automatic (for display or switch position) ( automat )
AUM	All Up Mass	Total flight weight; All-up weight
AUW	All Up Weight	Total flight weight; All-up weight
AUX	Auxiliary	Additive-…

to the previous section - AU

AV

(to the next section - AW) ... (to the beginning of the list)

AV	Air Vehicle	Aircraft, aircraft (the B-2 prototype was called "Air Vehicle One (AV-1)"
AVA	Unit Load Device (ULD)	IATA ID code for a specific type of air freight container - LD3 clothes container
AVAIL	Available	available
AVASIS	Abbreviated Visual Approach Slope Indicator System	Simplified glide angle lighting system
AVBL	Available	available
AVD	Avoid	avoid
AVE	Unit Load Device (ULD)	IATA ID code for a specific type of air cargo container - LD3 container
AVG	Average	Average, average
AVG	Aviation gasoline	Aviation gasoline
AVGAS	Aviation gasoline	Aviation gasoline (this is not kerosene)
AVGE FF	Average fuel flow	average fuel consumption per hour
AVGE toilet; AVGE W / C	Average Wind Component	average wind component
AVI	Live Animals (Cargo Code, animal vivant )	living animals
AVIA	Aviation	aviation
AVIH	Animal ( vivant ) in hold	Animal in the hold
AVINOR		Norwegian air traffic control
AVM	Airborne Vibration Monitor
AVMF	Aviatsija Vojenno Morskowo Flota	Russian Navy Air Force (also abbreviated to AWMF)
AVML	Asian Vegetarian Meal (Catering Code)	Asian, vegetarian food with rice (Indian style) - see: Airplane food
AVOL	Aerodrome Visibility Operational Level
AVS	Audio visual system	audiovisual system ( audiovisual )
AVSAT	Aviation Satellite System
AVT	Audio / visual training
AVTN	Aviation	aviation
AVTR	Airborne videotape recorder	( General Dynamics F-16 )

to the previous section - AV

AW

(to the next section - AZ) ... (to the beginning of the list)

AWACS	Airborne (Early) Warning And Control System	(US) military early warning system
AWB	Airway Bill (Cargo Code)	Air waybill
AWB	Airworthiness Bulletin
AWC	Aviation Weather Center
AWG	American Wire Gauge
AWM	Alternate Weather Minima
AWMF	Aviatsija Wojenno Morskowo Flota, Авиация Военно-морского флота	Russian Navy Air Force (also abbreviated to AVMF)
AWO	All Weather Operations	All-weather flight operations
AWOS	Automated Weather Observing System	Automatic weather observation system that measures, collects and disseminates weather data; (A new measurement is made every minute: wind speed and direction, temperature, dew point, visibility, cloud height and type, precipitation, QNH; depending on the number and type of sensors, a distinction is made between AWOS 1 to AWOS 3)
AWR	Airborne Weather Radar	Aviation weather radar, which is installed in modern aircraft for the detection of dangerous weather conditions
AWSS	Automated Weather Sensor System	primary ground weather observation system in the USA (ASOS / AWSS)
AWW	Alert Weather Watches; Severe Weather Forecast Alert
AWY	Airway	Airway

to the previous section - AW

AZ

... (to the top of the list)

AZ	azimuth	azimuth
AZ	Azimuth Station (MLS)	Azimuth station (angle between radial baseline and north direction)
AZF	Radio Telephony License	Generally valid radiotelephony certificate for the aeronautical radio service - radiotelephone certificate (aviation)
AZFW	Actual Zero Fuel Weight
AZM	Azimuth	azimuth

to the previous section - AZ ... (to the beginning of the list) ... (to the next letter - B)

See also

• ICAO alphabet
• List of aircraft registration numbers
• List of commercial airports
• List of IATA airport codes

Web links

• Encyclopedia of Military Aviation (select section Glossary)
• U.S. military abbreviations - including many from aviation
• aerospace-technology.com/acronyms ( Memento from February 6, 2005 in the Internet Archive )
• F-16 Specific Glossary
• hf.faa.gov acronyms ( Memento from September 6, 2012 in the Internet Archive ) (PDF file; 2.5 MB)

Individual evidence

1. ↑ Aviation Safety Reporting System (ASRS). "Confidential. Voluntary. Non-punitive “( German  confidential, voluntary, without penalty ). NASA , accessed July 18, 2014 : "ASRS collects confidential reports, analyzes the resulting aeronautical visibility data, and disseminates information of vital importance to the aviation community."