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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
effective coverage
Aviation; Air traffic control
The area surrounding a non-directional beacon (NDB) within which bearings can be obtained with an accuracy sufficient for the nature of the operation concerned.
mountainous region
Aviation; Air traffic control
An area of defined lateral dimensions above which special rules concerning minimum en route altitudes apply.
holding pattern
Aviation; Air traffic control
(1) A predetermined racetrack pattern flown as part of a holding procedure. (2) U.S.: Expression for: holding procedure
instrument approach waypoints
Aviation; Air traffic control
Geographic positions, given in degrees of latitude and longitude, used in defining instrument approach procedures (IAP). Waypoints may be coded in aircraft navigation data bases and depicted on ...
evening civil twilight
Aviation; Air traffic control
Relative to the standard meridians of the time zones, the period of time that begins at sunset and ends at the time specified by the Institute of National Measurement Standards of the National ...
defence visual flight rules
Aviation; Air traffic control
Rules applicable to flights within an air defence identification zone (ADIZ) conducted under VFR.
hover taxi
Aviation; Air traffic control
U.S. and Canada: The movement of a helicopter or vertical takeoff and landing aircraft (VTOL) above the surface of an aerodrome and in ground effect at airspeeds less than approximately 20 kt. ...