Common Aviation Acronyms

Common Aviation Acronyms

A/D

Analog To Digital

A/P

Autopilot

ABAS

Aircraft-Based Augmentation System

ABROAD

ADS Broadcast

AC

Advisory Circular

ACAS

Airborne Collision Avoidance System

ACARS

Aircraft Communications Addressing And Reporting System

ACC

Area Control Center

ACE

Actuator Control Electronics

ACMS

Aircraft Condition Monitoring System

ACO

Aircraft Certification Office (typically FAA, e.g. USA)

ACP

Audio Control Panel

ACS

Audio Control System

AD

Airworthiness Directive

ADAHRS

Air Data And Attitude Heading Reference System

ADC

Air Data Computer, or Analog-To-Digital Converter

ADF

Automatic Direction Finder

ADI

Attitude Director Indicator

ADIRS

Air Data Inertial Reference System

ADIRU

Air Data Inertial Reference Unit

ADM

Air Data Module

ADR

Airborne Data Reception

ADS

Automatic Dependent Surveillance

ADS-A

Automatic Dependent Surveillance-Address

ADS-B

Automatic Dependent Surveillance-Broadcast

ADS-C

Automatic Dependent Surveillance-Contract

AEH

Airborne Electronic Hardware

AESA

Active Electronically Scanned Array

AFCS

Automatic Flight Control System

AFD

Autopilot Flight Director

AFDC

Autopilot Flight Director Computer

AFDS

Autopilot Flight Director System

AFDX

Avionics Full-Duplex Switched Ethernet

AGACS

Automatic Ground

AGDL

Air-Ground Data Link

AHC

Attitude Heading Control

AHRS

Attitude Heading Reference System

AIDS

Aircraft Integrated Data

AIM

Aeronautical Information Manual

AIP

Aeronautical Information Publication

AIR

Aerospace Information Report

AIS

Airmen’s Information System

AL

Assurance Level

ALT

Altitude

AMC

Acceptable Means of Compliance

AMS

Air Management System

ANC

Active Noise Cancellation

ANN

Annunciator

ANR

Active Noise Reduction

ANSI

American National Standards Institute

ANT

Antenna

AOC

Aeronautical Operational Control

AOP

Airport Operating Plan

AOPA

Aircraft Owners And Pilots Association

APARS

Automatic Pressure Altitude Reporting System

APS

Auto Pilot System

APU

Auxiliary Power Unit

APV

Approach With Vertical Guidance

ARINC

Aeronautical Radio, Inc.

ARP

Aerospace Recommended Practice (via Society of Automotive & Aerospace Engineers)

ASD

Aircraft Situation Display

ASDL

Aeronautical Satellite Data Link

ASIC

Application Specific Integrated Circuit

ASR

Airport Surveillance Radar

ASTERIX

All Purpose Structured Eurocontrol Surveillance Information Exchange

ASU

Avionics Switching Unit

AT

Auto Throttle

ATC

Amended Type Certificate

ATC

Air Traffic Control

ATCRBS

Air Traffic Control Radar Beacon System

ATCSS

Air Traffic Control Signaling System

ATCT

Airport Traffic Control Tower

ATIS

Automated Terminal Information Service

ATM

Air Traffic Management

ATS

Air Traffic Service

ATSAW

Airborne Traffic Situational Awareness

ATSU

Air Traffic Services Unit

ATT

Attitude

Avionics

Aviation Electronics

AVN

Office Of Aviation System Standards

AWACS

Advanced Warning And Control Systems

AWOS

Automated Weather Observation System

For the remainder of this list, B’s through Z’s, request a free download HERE.