Aviation

Aviation

Dealing with vehicles or machines used in flight or propulsion through the air.

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Aviation > Airport

words twice

Aviation; Air traffic control

An expression used in radiocommunication meaning: (a) when used as a request: "Communication is difficult. Please, send every word, or group of words, twice." (b) when used as ...

VTOL aircraft

Aviation; Air traffic control

An aircraft capable of vertical climbs and descents and of using very short runways or small areas for takeoff and landing. These aircraft include, but are not limited to, ...

VFR-on-top

Aviation; Air traffic control

U.S.: ATC authorization for an IFR aircraft to operate in VFR conditions at any appropriate VFR altitude (as specified in the FARs and as restricted by ATC). Note: VFR-on-top is ...

altitude readout value

Aviation; Air traffic control

The altitude figures currently displayed in an altitude readout.

alerting service

Aviation; Air traffic control

Fr: service d'alerte

air-taxiing

Aviation; Air traffic control

ICAO: Movement of a helicopter/VTOL above the surface of an aerodrome, normally in ground effect and at a ground speed normally less than 37 km/h (20 kt). Note ICAO: The actual ...