Runway Visual Range (RVR) is used when visibility is 1/2 mile or less and is typically measured and expressed in what unit?

Runway Visual Range (RVR) is used when visibility is 1/2 mile or less and is typically measured and expressed in what unit?

• A. Meters
• B. Kilometers
• C. Feet
• D. Statute miles

Answer: (D)

Runway Visual Range is a runway-specific measurement of how far a pilot can see along the runway, and it’s reported in a fixed distance unit. In U.S. practice, that unit is feet, often shown on METARs as something like 0600FT. Internationally, the same concept is expressed in meters, but the typical classroom and US-based procedures reinforce feet as the standard for RVR. Statute miles, kilometers, or general visibility in miles don’t convey the precise runway distance needed for safe operations, so they aren’t used for RVR.

Runway Visual Range is a runway-specific measurement of how far a pilot can see along the runway, and it’s reported in a fixed distance unit. In U.S. practice, that unit is feet, often shown on METARs as something like 0600FT. Internationally, the same concept is expressed in meters, but the typical classroom and US-based procedures reinforce feet as the standard for RVR. Statute miles, kilometers, or general visibility in miles don’t convey the precise runway distance needed for safe operations, so they aren’t used for RVR.