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Air traffic control
An in-airport service that facilitates the safe and orderly movement of aircrafts within and between airports, achieved by interpreting data from radar and weather devices, and by maintaining contact with pilots.
Industry: Aviation
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Air traffic control
Marker beacon
Aviation; Air traffic control
A transmitter in the aeronautical radionavigation service that radiates vertically a distinctive pattern to provide position information to aircraft.
Flight information service (FIS)
Aviation; Air traffic control
A service consisting of the following: (a) the dissemination of aviation weather information and aeronautical information for departure, destination and alternate aerodromes along a proposed route ...
Morning civil twilight
Aviation; Air traffic control
Relative to the standard meridians of the time zones, the period of time that begins at the time specified by the Institute for National Measurement Standards of the National Research Council of ...
Distress
Aviation; Air traffic control
Condition of being threatened by serious and/or imminent danger and of requiring immediate assistance. The spoken word for distress is MAYDAY, and it is pronounced three times.
Flight information service en route (FISE)
Aviation; Air traffic control
The provision and receipt by a flight information centre (FIC) of information pertinent to the en route phase of flight.
En route clearance
Aviation; Air traffic control
A clearance covering the flight path of an aircraft after takeoff to the point at which an approach to land is expected to commence.
Deviation
Aviation; Air traffic control
(1) A departure from a current clearance, such as an off-course manoeuvre, to avoid weather or turbulence. (2) The angular difference between magnetic and compass headings.
