Aviation/Aircraft Acronyms

Enter what each of these aviation-related acronyms stands for.

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Last updated: November 22, 2022

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Hint	Answer
ATC	Air Traffic Control
APU	Auxiliary Power Unit
CFI	Certified Flight Instructor
GA	General Aviation
VFR	Visual Flight Rules
IFR	Instrument Flight Rules
ATIS	Automated Terminal Information Service
ADI	Attitude Direction Indicator
DME	Distance Measuring Equipment
OAT	Outside Air Temperature
VOR	VHF Omnidirectional Range
IAS	Indicated Air Speed
TAS	True Air Speed
AGL	Above Ground Level
MSL	Mean Sea Level
ILS	Instrument Landing System
CDI	Course Deviation Indicator

Hint	Answer
HUD	Heads-Up Display
ICAO	International Civil Aviation Organization
LNAV	Lateral Navigation
VNAV	Vertical Navigation
MTR	Military Training Route
NASA	National Aeronautics and Space Administration
NAVAID	Navigational Aid
PAPI	Precision Approach Path Indicator
RNAV	Area Navigation
SAR	Search and Rescue
SAM	Surface to air missile/system area monitor
SAS	Stability Augmentation System
TACAN	Tactical Air Navigation
VHF	Very High Frequency
UHF	Ultrahigh Frequency
VASI	Visual Approach Slope Indicator
BFM	Basic Fighter Maneuvers