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Multiple Choice

What control shall be used when shipboard radar is inoperative or so degraded as to be inadequate to provide radar separation of air traffic under conditions normally requiring positive control?

When radar is not available or reliable enough to ensure radar-based separation, air traffic control switches to nonradar, procedural control. In this mode, separation is achieved without radar by using preplanned routes, altitude assignments, speed control, and mandatory position reports from pilots. Controllers rely on these procedures to keep aircraft separated rather than on real-time radar guidance. Advisory or monitor roles don’t provide the guaranteed separation required under these conditions, and positive control depends on radar to establish that separation. So, nonradar control is the appropriate method when shipboard radar is inoperative or degraded.

When radar is not available or reliable enough to ensure radar-based separation, air traffic control switches to nonradar, procedural control. In this mode, separation is achieved without radar by using preplanned routes, altitude assignments, speed control, and mandatory position reports from pilots. Controllers rely on these procedures to keep aircraft separated rather than on real-time radar guidance. Advisory or monitor roles don’t provide the guaranteed separation required under these conditions, and positive control depends on radar to establish that separation. So, nonradar control is the appropriate method when shipboard radar is inoperative or degraded.