Abbreviations 1
Abbreviations 2
Abbreviations 3
Abbreviations 4
Abbreviations 5
100

ADF

What is an Automatic Direction Finder

100

HDG

What is Heading

100

NAV

What is Navigation

100

COM

What is Communication

100

FSS

What is Flight Service Station

200

ILS

What is Instrument Landing System


200

FAA

What is Federal Aviation Administration

200

LOC

What is Localizer

200

VHF

What is Very High Frequency

200

ATIS

What is Automatic Terminal Information Service

300

MHZ

What is Megahertz

300

ATC 

What is Air Traffic Control

300

ELT

What is Emergency Locator Transmitter

300

ADF

What is Automatic Direction Finder

300

CAVU

What is Clouds and Visibility Unlimited

400

VOR

What is Very High Frequency Omni-diretional Range

400

VASI

What is Visual Approach Slope Indicator

400

IFR 

What are Instrument Flight Rules
400

RMI

What is Radio Magnetic Indicator
400

ARSA

What is Aeronautical Repair Station Association

500

TRSA

What is Terminal Radar Service Area

500

MSL

What is Mean Sea Level

500

CTAF

What is Common traffic Advisory Frequency

500

TACAN

What is Tactical Air Navigation

500

What did one traffic light say to the other traffic light?

Don't Look! I'm changing!