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Questions and Answers
What does ALSF stand for in aviation terminology?
What does ALSF stand for in aviation terminology?
What is the primary function of ASDE-X?
What is the primary function of ASDE-X?
What does LLWAS stand for?
What does LLWAS stand for?
What is the purpose of WAAS?
What is the purpose of WAAS?
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What does VASI stand for?
What does VASI stand for?
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What is the primary function of ASR?
What is the primary function of ASR?
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What does METAR stand for?
What does METAR stand for?
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What is the purpose of GBAS?
What is the purpose of GBAS?
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What does TORA stand for?
What does TORA stand for?
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What does RNAV stand for?
What does RNAV stand for?
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Study Notes
Aviation Acronyms
- ACA: Approach Control Area
- ACARS: Airborne Communications Addressing and Reporting System
- ACAS: Airborne Collision Avoidance System
- ACN: Aircraft Classification Number
- ADS: Automatic Dependent Surveillance
- AEIS: Aeronautical Enroute Information Service
- AFIS: Aerodrome Flight Information Service
- APAPI: Abbreviated Precision Approach Path Indicator
- ARTCC: Air Route Traffic Control Center
- ASDE-X: Airport Surface Detection Equipment - Model X
- ASOS: Automated Surface Observing System
- ASR: Airport Surveillance Radar
- ATIS: Automatic Terminal Information Service
- AWOS: Automated Weather Observing System
- CCN: Chart Change Notices
- CDFA: Continuous Descent Final Approach
- CTA: Control Area
- CTAF: Common Traffic Advisory Frequency
- DER: Departure End of Runway
- EAT: Expected Approach Time
- EET: Estimated Elapsed Time
- EFAS: Enroute Flight Advisory System
- ETOPS: Extended Range Operations with 2 engine Airplanes
- FBO: Fixed Based Operator
- FMC: Flight Management Computer
- GBAS: Ground-Based Augmentation System
- GPA: Glidepath Angle
- HALS: High Approach Landing System
- HST: High Speed Taxiway Turn-off
- HUD: Head Up Display
- IAP: Instrument Approach Procedure
- IMTA: Intensive Military Training Area
- LAA: Local Airport Advisory
- LAHSO: Land and Hold Short Operations
- LDA: Landing Distance Available
- LLWAS: Low Level Wind Shear Alert System
- LMM: Locator Middle Marker
- LOM: Locator Outer Marker
- LPV: Localizer Performance with Vertical Guidance
- MAA: Maximum Authorized Altitude
- MAHF: Missed Approach Holding Fix
- MDA: Minimum Descent Altitude
- MEA: Minimum Enroute Altitude
- METAR: Aviation Routine Weather Report
- MKR: Marker Radio Beacon
- MLS: Microwave Landing System
- MOA: Military Operation Area
- MROT: Minimum Runway Occupancy Time
- MTA: Military Training Area
- MTAF: Mandatory Traffic Advisory Frequency
- NAP: Noise Abatement Procedure
- NDB: Non-Directional Beacon/Radio Beacon
- OAC: Oceanic Area Control
- PBN: Performance-Based Navigation
- PCN: Pavement Classification Number
- PLASI: Pulsating Visual Approach Slope Indicator
- PNR: Prior Notice Required
- PRA: Precision Radar Approach
- PTO: Part Time Operation
- QDM: Magnetic Bearing to Facility
- QDR: Magnetic Bearing from Facility
- QFE: Height above Airport Elevation (or runway threshold elevation) based on local station pressure
- QNE: Altimeter setting 29.92"Hg or 1013.2 Mb
- QNH: Altitude Above Sea level based on local station pressure
- RAI: Runway Alignment Indicator
- RAIM: Receiver Autonomous Integrity Monitoring
- RCL: Runway Center Line
- RCLM: Runway Center Line Markings
- RNAV: Area Navigation
- SBAS: Satellite-Based Augmentation System
- SDF: Simplified Directional Facility
- SMGCS: Surface Movement Guidance and Control System
- SMSA: Segment Minimum Safe Altitude
- SRA: Surveillance Radar Approach
- STOL: Short Take-Off and Landing
- TAA: Terminal Arrival Area (FAA) Terminal Arrival Altitude (ICAO)
- TCH: Threshold Crossing Height
- TDZE: Touchdown Zone Elevation
- TIBA: Traffic Information Broadcast by Aircraft
- TMA: Terminal Control Area
- TODA: Take-off Distance Available
- TORA: Take-Off Run Available
- UIR: Upper Flight Information Region
- UTA: Upper Control Area
- VASI: Visual Approach Slope Indicator
- VDA: Vertical Descent Angle
- VGSI: Visual Glide Slope Indicator
- WAAS: Wide Area Augmentation System
Aviation Lighting Systems
- ALSF: Approach Light System with Sequenced Flashing Lights
- HIALS: High Intensity Approach Light System
- HIRL: High Intensity RunwayEdge Lights
- HSTIL: High Speed Taxiway Turn-off Indicator Lights
- LDIN: Lead-in Light System
- LIRL: Low Intensity Runway Lights
- MALS: Medium Intensity Approach Light System
- MALSF: Medium Intensity Approach Light System with Sequenced Flashing Lights
- MALSR: Medium Intensity Approach Light System with Runway Alignment Indicator Lights
- MIALS: Medium Intensity Approach Light System
- MIRL: Medium Intensity Runway Edge Lights
- ODALS: Omni-Directional Approach Light System
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Description
Test your knowledge of aviation acronyms, including ACA, ACARS, ACAS, and more. Identify and understand the meanings of these important aviation terms.
