EOBT estimated off-blocks time
EP Elementary pilot rating of the British Hang Gliding and Paragliding Association
EPNdB effective perceived noise decibel. Unit of measurement of aircraft noise levels.
ER extended range
eshp equivalent shaft horsepower
ETA estimated time of arrival. Also ;
ETD estimated time of departure
ETE estimated time en route
ETOPS extended-range twin operations, usually long over-water flights by airliners.
ETPS Empire Test Pilots School, based at the Aircraft & Armament Experimental Establishment, Boscombe Down.
Eurocontrol organisation, headquartered in The Netherlands, comprising Belgium, France, Germany, Ireland, Luxembourg, Netherlands and UK for coordinating en route air traffic control in Europe.
FAA Federal Aviation Administration, USA, equivalent of UK's CAA.
FAA Fleet Air Arm, of UK's Royal Navy.
FADEC full-authority digital engine control
FAF final approach fix, the point at which a published instrument approach begins.
FAI Fédération Aéronautique Internationale, the international body for verification of aeronautical record attempts and sporting regulations.
FAR Federal Aviation Regulations (USA)
FARA Formula Air Racing Association
FBL fly by light i.e. control via optical fibres
FBO fixed-base operator, American term for commercial operators supplying fuel, maintenance, aircraft sales, rental, flight training, handling and other GA services at an airport. (So-called because the first FBOs were early barnstormers who chose to settle at one field.)
FBW fly-by-wire. Aircraft control systems in which pilots' control inputs are transmitted to control surfaces electronically or via fibre optics rather than by mechanical linkage. Also see FBL.
FCL Flight Crew Licensing (Division), a CAA department handling all aspects of private and professional pilot, flight engineer and navigator licensing.
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