Aviation

Aviation

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

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Aviation > Airport

military terminal control unit (MTCU)

Aviation; Air traffic control

A system of control by surveillance and precision radar, consolidated into one specific military unit to provide radar traffic control service to IFR flights operating within a ...

emergency frequency

Aviation; Air traffic control

A frequency (for example 121.5 MHz) used for transmitting emergency information.

mean wind

Aviation; Air traffic control

The wind direction and speed as determined from a sample reading taken every second over a two-minute period.

guard

Aviation; Air traffic control

DND: An expression used in radiocommunications to indicate emergency frequency 243.0 MHz. Note: An example would be "Monitor guard."

hover check

Aviation; Air traffic control

An expression used to describe the situation when a helicopter or vertical takeoff and landing aircraft (VTOL) requires a stabilized hover to conduct a performance or power check ...

mandatory frequency (MF)

Aviation; Air traffic control

A very high frequency (VHF) specified in the Canada Air Pilot (CAP) or the Canada Flight Supplement (CFS) for the use of radio-equipped aircraft operating within a mandatory ...