Acronyms

Embarking on the journey to earn your Private Pilot License (PPL) is an exciting and challenging endeavor. As you delve into the world of aviation, you'll quickly discover that the field is rich with specialized terminology and concepts. To streamline the learning process and ensure efficient communication, the aviation industry heavily relies on acronyms. For student pilots preparing for their PPL in the USA, understanding and memorizing these acronyms is crucial. They are integral to both the Federal Aviation Administration (FAA) written exams and practical tests. Acronyms help condense complex information into manageable, memorable nuggets, aiding in quicker recall and clearer understanding. Below is a selection of common acronyms you will encounter during your PPL training.

Acronym (Generic)Meaning
AIMAeronautical Information Manual
A/FDAirport/Facility Directory (now often called the 'Chart Supplement')
ATISAutomatic Terminal Information Service
ATCAir Traffic Control
ADFAutomatic Direction Finder
AMSLAbove Mean Sea Level
AGLAbove Ground Level
VFRVisual Flight Rules
IFRInstrument Flight Rules
METARMeteorological Aerodrome Report
TAFTerminal Aerodrome Forecast
CTAFCommon Traffic Advisory Frequency
NOTAMNotice to Air Missions
PICPilot In Command
IMCInstrument Meteorological Conditions
SMStatute Miles
VASIVisual Approach Slope Indicator
PAPIPrecision Approach Path Indicator
GPSGlobal Positioning System
NDBNon-Directional Beacon
VORVery High Frequency Omnidirectional Range
DMEDistance Measuring Equipment
FARFederal Aviation Regulations
PTSPractical Test Standards (has largely been replaced by ACS)
ACSAirman Certification Standards
TSOTechnical Standard Order
ASIAirspeed Indicator
ATPAirline Transport Pilot
CGCenter of Gravity
EFDElectronic Flight Display
EFISElectronic Flight Instrument System
ELTEmergency Locator Transmitter
FBOFixed Base Operator
MELMinimum Equipment List
MOCAMinimum Obstruction Clearance Altitude
MSLMean Sea Level
RPMRevolutions Per Minute
TCASTraffic Collision Avoidance System
TFRTemporary Flight Restriction
AAWUAlaskan Aviation Weather Unit
AASAirport Advisory Service
AAMAdvanced Air Mobility
ACAdvisory Circular
ACARAircraft Communications Addressing and Reporting System
ADCUSAdvise Customs
ADDSAviation Digital Data Service
ADFAutomatic Direction Finder
ADIZAir Defense Identification Zone
ADS-BAutomatic Dependent Surveillance-Broadcast
AFBAir Force Base
AFCSAutomatic Flight Control System
AFISAutomatic Flight Information Service
AFMAircraft Flight Manual
AGLAbove Ground Level
AHRSAttitude Heading Reference System
AIMAeronautical Information Manual
AIRMETAirmen's Meteorological Information
AISAeronautical Information Services
ALDAvailable Landing Distance
ALDARSAutomated Lightning Detection and Reporting System
ALSApproach Light Systems