Circle-to-land minimums: which statement is true?

Circle-to-land minimums: which statement is true?

• A. Only visibility minimums are required
• B. Only ceiling minimums are required
• C. Both visibility and ceiling minimums must be met at ETA
• D. No minimums apply

Answer: (C)

Circle-to-land minimums are a safety guard for performing a circling maneuver after an instrument approach. They require you to have both enough visibility to see the runway environment and enough cloud clearance, expressed as a minimum ceiling, to safely maneuver around obstacles while turning toward the landing runway. The reason both elements are required is that circling is done in the vicinity of the airport where you must visually acquire the runway and maintain aircraft separation from clouds and terrain while you maneuver. If you only meet one part—say you have good visibility but ceilings are too low—you wouldn’t have adequate cloud clearance to complete the circle safely. If ceilings are high enough but visibility is below the minimum, you wouldn’t be able to see the runway environment to properly maneuver and land. Therefore, the weather must meet both the visibility and the ceiling minima at the expected time you reach the circling phase, i.e., at ETA. That’s why the true statement is that both visibility and ceiling minimums must be met at ETA.

Circle-to-land minimums are a safety guard for performing a circling maneuver after an instrument approach. They require you to have both enough visibility to see the runway environment and enough cloud clearance, expressed as a minimum ceiling, to safely maneuver around obstacles while turning toward the landing runway.

The reason both elements are required is that circling is done in the vicinity of the airport where you must visually acquire the runway and maintain aircraft separation from clouds and terrain while you maneuver. If you only meet one part—say you have good visibility but ceilings are too low—you wouldn’t have adequate cloud clearance to complete the circle safely. If ceilings are high enough but visibility is below the minimum, you wouldn’t be able to see the runway environment to properly maneuver and land. Therefore, the weather must meet both the visibility and the ceiling minima at the expected time you reach the circling phase, i.e., at ETA.

That’s why the true statement is that both visibility and ceiling minimums must be met at ETA.