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Aviation

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

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Aviation > Airport

Southern Control Area (SCA)

Aviation; Air traffic control

A controlled airspace within the Southern Domestic Airspace (SDA) at 18 000 ft ASL and above.

NAT Region

Aviation; Air traffic control

The region encompassing the northern portion of the Atlantic Ocean, as defined by ICAO.

North American Routes System

Aviation; Air traffic control

A special routing system consisting of routes located within the high level airspace established to facilitate control of the flow of international air traffic between the North ...

preferred IFR route

Aviation; Air traffic control

A route established between busier airports to increase system efficiency and capacity. IFR clearances are issued on the basis of such routes except when severe weather avoidance ...

touchdown RVR

Aviation; Air traffic control

The RVR readout values obtained from RVR equipment serving the touchdown zone.

rollout RVR

Aviation; Air traffic control

The RVR readout values obtained from RVR equipment located nearest the rollout end of the runway.

SELCAL

Aviation; Air traffic control

Abbreviation for: selective calling system