Vertical separation may be reduced to 800 feet when inside ____ nm.

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Multiple Choice

Vertical separation may be reduced to 800 feet when inside ____ nm.

Vertical separation is normally 1000 feet, but in radar-controlled terminal airspace you can reduce it to 800 feet when both aircraft are inside 12 nautical miles of the controlling facility. This makes sense because, in that zone, radar surveillance and communication are typically more precise, allowing the controller to keep accurate track of each aircraft’s altitude and position. The tighter spacing helps increase capacity around busy airports, while outside that 12 NM radius the standard 1000-foot separation remains to account for less precise tracking.

Vertical separation is normally 1000 feet, but in radar-controlled terminal airspace you can reduce it to 800 feet when both aircraft are inside 12 nautical miles of the controlling facility. This makes sense because, in that zone, radar surveillance and communication are typically more precise, allowing the controller to keep accurate track of each aircraft’s altitude and position. The tighter spacing helps increase capacity around busy airports, while outside that 12 NM radius the standard 1000-foot separation remains to account for less precise tracking.

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