Aviation

Aviation

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

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Aviation > Airport

surface weather observation

Aviation; Air traffic control

An aviation weather report describing the weather conditions at a specified location and at a specified time, as observed from the ground. Regular observations are made on the ...

required visual reference

Aviation; Air traffic control

In respect of an aircraft on an approach to a runway, the section of the approach area of the runway or the visual aids that, when viewed by the pilot of the aircraft, enable the ...

touchdown and lift-off area (TLOF)

Aviation; Air traffic control

A load-bearing area on which a helicopter may touch down or lift off.

precipitation

Aviation; Air traffic control

Any product of the condensation of atmospheric water vapour that is deposited on the earth's surface.

obstacle clearance altitude (OCA)

Aviation; Air traffic control

The lowest altitude above the elevation of the relevant runway threshold or above the aerodrome elevation, as applicable, used in establishing compliance with appropriate obstacle ...

restricted instrument procedure (RIP)

Aviation; Air traffic control

An instrument approach, departure or transition procedure that is not authorized for public use, but that has been approved by Transport Canada for restricted use by one or more ...