RVR vs Visibility

MyArk Offline
Junior Member
[font=-apple-system, BlinkMacSystemFont, 'Segoe UI', 'Liberation Sans', sans-serif][b]Visibility[/b] for aeronautical purposes is the greater of:[/font]
  1. [font=-apple-system, BlinkMacSystemFont, 'Segoe UI', 'Liberation Sans', sans-serif]the greatest safe distance at which a black object of suitable dimensions, situated near the ground, can be seen and recognised when observed against a bright background;[/font]
  2. [font=-apple-system, BlinkMacSystemFont, 'Segoe UI', 'Liberation Sans', sans-serif]the greatest distance at which lights in the vicinity of 1000 candelas can be seen and identified against an unlit black background.[/font]
[font=-apple-system, BlinkMacSystemFont, 'Segoe UI', 'Liberation Sans', sans-serif][b]Runway Visual Range (RVR)[/b] is the range over which the pilot of an aircraft on the centre line of a runway can see the runway surface markings or the light delineating the runway or identifying its centre line. (ICAO Annex 3)[/font]

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