When should current touchdown RVR be issued to departing aircraft for the runway in use?

• A. When visibility is 2 miles or less
• B. When visibility is 1 mile or less
• C. When visibility is 3 miles or less
• D. When visibility is 4 miles or less

Answer: (B)

Current touchdown RVR (Runway Visual Range) should be issued to departing aircraft when visibility is 1 mile or less. This is important because RVR provides pilots with practical information about how far they can see along the runway, especially in conditions of low visibility.

When visibility drops to 1 mile or less, it significantly affects a pilot's ability to safely operate the aircraft during takeoff. The issuance of RVR at this threshold helps ensure that pilots have the necessary data to make informed decisions regarding their departures, including whether the conditions are safe to proceed. In contrast, at higher visibility levels, such as 2, 3, or 4 miles, the standard practices typically rely on general visibility information rather than specific RVR measurements. Therefore, limiting the issuance of RVR to scenarios with visibility of 1 mile or less is crucial for maintaining safety in low-visibility operations.