IS Definitions Part 4 Flashcards
Estimated block off time
The estimated time at which the aircraft will commence movement associated with departure.
Estimated time of arrival
For IFR flights, the time at which it is estimated the aircraft will arrive over that designated point, defined by reference to navigation aids, from which it is intended that an instrument approach procedure will be commenced, or if no navigation air is associated with the aerodrome, the time at which the aircraft will arrive over the aerodrome. For VFR fligths, the time at which it is estimated that the aircraft will arrive over the aerodrome.
Expected approach time
The time at which ATC expects that an arriving aircraft, following a delay, will leave the holding fix to complete its approach for a landing.
Filed flight plan
The flight plan as filed with an ATS unit by the pilot or a designated representative, without any subsequent changes.
Flight crew member
A licensed crew member charged with duties essential to the operation of an aircraft during a flight duty period.
Flight Information Center
A unit established to provide flight information service and alerting service.
Flight Information Region
An airspace of defined dimensions within which flight information service and alerting service are provided.
Flight information service
A service provided for the purpose of giving advice and information useful for the safe and efficient conduct of flights.
Flight level
A surface of constant atmospheric pressure which is related to a specific pressure datum, 1 013.2 hectopascals(hPa), and is seperated from other such surfaces by specific pressure intervals.
Flight Plan
Specified information provided to air traffic services units, relative to an intended flight or portion of a flight of an aircraft.
Flight Visibility
The visibility forward from the cockpit of an aircraft in flight.
Ground visibility
The visibility at an aerodrome as reported by an accredited observer or by automatic systems.
Heading
The direction in which the longitudinal axis of an aircraft is pointed, usually expressed in degrees from North (true, magnetic, compass or grid).
Height
The vertical distance of a level, a point or an object considered as a point, measured from a specified datum.
IFR
The symbol used to designate the instrument flight rules.