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9.19 Visibility


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Runway Visual Range

Runway visual range is the range over which the pilot of an aircraft on the centre line of a runway can see the runway surface markings, lights delineating the runway or may be determined by an observer located at the end of the runway, facing in the direction of landing, or by means of a transmissometer installed near the end of the runway.

Fog can be a hazard when trying to land due to the difficulty of trying to see obliquely (slant visibility) through to the surface, even though the surface was visible from directly above the airport