Air traffic control

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

wing-tip vortex

Aviation; Air traffic control

A circular pattern of air current created by the movement of an airfoil through the air when the airfoil is generating lift. As an airfoil moves through the atmosphere in sustained flight, an area of ...

very low frequency (VLF)

Aviation; Air traffic control

The frequency band between 3 and 30 kHz.

very high frequency (VHF)

Aviation; Air traffic control

The frequency band between 30 and 300 MHz.

wake turbulence

Aviation; Air traffic control

Turbulent air behind an aircraft caused by any of the following: (a) wing-tip vortices; (b) rotor-tip vortices; (c) jet-engine thrust stream or jet blast; (d) rotor downwash; (e) prop wash.

ultrahigh frequency (UHF)

Aviation; Air traffic control

The frequency band between 300 and 3000 MHz.

universal

Aviation; Air traffic control

Spoken expression for: Co-Ordinated Universal Time (UTC)

urgency

Aviation; Air traffic control

Condition concerning the safety of an aircraft or other vehicle, or of some person on board or within sight, but which does not require immediate assistance. The spoken word for urgency is PAN PAN, ...