If both RVR 'A' and 'B' are available, what are the appropriate limits?

If both RVR 'A' and 'B' are available, what are the appropriate limits?

• A. 1200 RVR
• B. No restrictions
• C. 1200/600 RVR
• D. 1200/600 RVR, 200' DA

Answer: (C)

When two RVR readings are available for a runway, the limits are expressed as two values, one for each location along the runway. You must meet both, so the minima are written as a pair like 1200/600 RVR. This means you need at least 1200 RVR at the first point (RVR A) and at least 600 RVR at the second point (RVR B). If either value isn’t met, the operation isn’t permitted. So the appropriate limits are 1200/600 RVR because they reflect the required visibility at both reporting points, ensuring adequate visibility across the critical portions of the runway. The other options are not correct because they either ignore one of the readings, claim no restrictions, or add an altitude minimum (DA) that isn’t part of the RVR limits in this context.

When two RVR readings are available for a runway, the limits are expressed as two values, one for each location along the runway. You must meet both, so the minima are written as a pair like 1200/600 RVR. This means you need at least 1200 RVR at the first point (RVR A) and at least 600 RVR at the second point (RVR B). If either value isn’t met, the operation isn’t permitted.

So the appropriate limits are 1200/600 RVR because they reflect the required visibility at both reporting points, ensuring adequate visibility across the critical portions of the runway. The other options are not correct because they either ignore one of the readings, claim no restrictions, or add an altitude minimum (DA) that isn’t part of the RVR limits in this context.