Aeronautical Terms beginning with A

AAF

Army Air Field

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AAS

Airport Advisory Service

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AC

Advisory Circular

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ADF

Automatic Direction Finder

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ADIZ

Air Defense Identification Zone

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ADS

Automatic Dependent Surveillance

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ADS-B

Automatic Dependent Surveillance-Broadcast

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Advsry

Advisory

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AFB

Air Force Base

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AFIS

Automatic Flight Information Service

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AFS

Air Force Station

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AFSS

Automated Flight Service Station

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AGL

Above Ground Level

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AIM

Aeronautical Information Manual

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AIRAC

Aeronautical Information Regulation And Control

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AK

Alaska

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AL

Approach and Landing

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ANG

Air National Guard

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APP

Approach

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APP CON

Approach Control

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APP CRS

Approach Course

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Apt

Airport

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APV

Approaches with Vertical Guidance

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ARP

Airport Reference Point

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ARTCC

Air Route Traffic Control Center

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ASDA

Accelerate-Stop Distance Available

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ASDE-X

Airport Surface Detection Equipment-Model X

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ASOS

Automated Surface Observing Station

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ASR

Airport Surveillance Radar

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ATC

Air Traffic Control

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ATIS

Automatic Terminal Information Service

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ATS

Air Traffic Service

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AUNICOM

Automated Aeronautical Advisory Station

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AWOS

Automated Weather Observing Station

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