navigation acronyms, abbreviations and definitions - International ...

EVS enhanced vision system
EVSC External Vehicle Speed Control (MIRA project 1997-2001, now ISA)
EW Electronic Warfare
EWAAS End-State WAAS
Final stage of WAAS, capable of supporting navigation and CAT I
precision approach.
EWAN EGNOS Wide Area Network
EWG evil waveform generator
EXM executive monitoring (GBAS processing)
Expandable-24 Reconfiguration for GPS constellation to use >30 sats (by mid-2011)
f Earth’s flattening (typically 1/298)
f femto (SI unit multiplier of 10 -15 )
f frequency
F-a farad (capacitance)
F-band NATO radar band 3-4 GHz = 10-7.5 cm
F, ºFahrenheit
FA fix to an altitude
FAA Federal Aviation Administration (US)
FAA Fleet Air Arm (RN)
FAB fast adaptable bandwidth (of loop filter for tracking GPS signals)
FAB functional airspace block (ignores national boundaries - part of SES)
FABA Functional Airspace Block Approach (part of SES)
FADEC full-authority digital engine control
FAF final approach fix
FAI Fédération Aéronautique Internationale
Body for verification of aeronautical record attempts and sporting
activities.
failure The unintended termination of the ability of a system, or part of a
system, to perform its required function.
failure rate The average number of failures of a system, or part of a system, per
unit time.
FANG Flight Management System Air Traffic Management Next Generation
FANS Future Air Navigation System (ICAO)
FANS-1/A air-to-ground datalink (ICAO)
FAR Federal Air Regulation (US)
FASS FAst Ship Safety (EU Framework project)
FAST Final Approach Sequencing Tool (for air traffic)(US)
FASTEST Facilitating Smart Card Technology for Electronic Ticketing &
Seamless Travel
FASTI First Air Traffic Control Support Tools Implementation
EUROCONTROL concept to provide additional ATC capacity.
FAT factory acceptance check
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March 2012