What is speed margin?

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Multiple Choice

What is speed margin?

Speed margin is the safety cushion between the speed you’re currently flying and the speeds that could put the airplane at risk, such as stall speed or the maximum permissible speed (Vne). This cushion protects you from unforeseen changes— gusts, sudden maneuvering, weight or configuration changes, and instrument or engine lag—so you don’t unexpectedly reach a critical speed. The other descriptions don’t capture this protective buffer to critical limits. One describes a performance-speed comparison (endurance speeds), another talks about indicated versus true airspeed with altitude, and the last compares takeoff and landing speeds. None describe a safety margin relative to stall, Vne, or other limits.

Speed margin is the safety cushion between the speed you’re currently flying and the speeds that could put the airplane at risk, such as stall speed or the maximum permissible speed (Vne). This cushion protects you from unforeseen changes— gusts, sudden maneuvering, weight or configuration changes, and instrument or engine lag—so you don’t unexpectedly reach a critical speed.

The other descriptions don’t capture this protective buffer to critical limits. One describes a performance-speed comparison (endurance speeds), another talks about indicated versus true airspeed with altitude, and the last compares takeoff and landing speeds. None describe a safety margin relative to stall, Vne, or other limits.

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