What is the required separation for aircraft operating above FL410?

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Multiple Choice

What is the required separation for aircraft operating above FL410?

Vertical separation minima set how far apart aircraft must be in altitude to stay safe. Within RVSM airspace, 1,000 ft of separation is allowed between FL290 and FL410 because aircraft can maintain very precise altitudes there. But above FL410, that reduced spacing is not applied, and the standard separation returns to 2,000 ft to maintain a comfortable safety margin given higher altimeter uncertainties and performance limits at those cruising levels. So, when operating above FL410, the required vertical separation is 2,000 ft.

Vertical separation minima set how far apart aircraft must be in altitude to stay safe. Within RVSM airspace, 1,000 ft of separation is allowed between FL290 and FL410 because aircraft can maintain very precise altitudes there. But above FL410, that reduced spacing is not applied, and the standard separation returns to 2,000 ft to maintain a comfortable safety margin given higher altimeter uncertainties and performance limits at those cruising levels. So, when operating above FL410, the required vertical separation is 2,000 ft.

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