In situations where radar contact is unreliable and positive control would normally apply, which control is used?

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Multiple Choice

In situations where radar contact is unreliable and positive control would normally apply, which control is used?

When radar contact is unreliable, you switch to non-radar control. Positive control relies on actively ensuring separation, but without dependable radar you can’t rely on live position tracking. Non-radar control handles separation procedurally: clear routes and altitudes, require pilots to report positions at fixes or points along the route, and use published procedures and timing to maintain separation. Advisory or monitor modes wouldn’t provide the necessary separation enforcement, and positive control isn’t feasible without reliable radar, so non-radar is the appropriate method in this situation.

When radar contact is unreliable, you switch to non-radar control. Positive control relies on actively ensuring separation, but without dependable radar you can’t rely on live position tracking. Non-radar control handles separation procedurally: clear routes and altitudes, require pilots to report positions at fixes or points along the route, and use published procedures and timing to maintain separation. Advisory or monitor modes wouldn’t provide the necessary separation enforcement, and positive control isn’t feasible without reliable radar, so non-radar is the appropriate method in this situation.

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