What is the White arc and what configurations does it cover?

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Multiple Choice

What is the White arc and what configurations does it cover?

The White arc shows the flap operating range. It covers speeds from the stall speed with flaps down (the lower limit) up to the maximum speed with flaps extended (Vfe). This is the range where the wing/flap configuration is within its safe structural limits when flaps are deployed. Beyond Vfe, extending flaps is not allowed because you’d risk structural damage, and below the lower limit you would stall with flaps down. In contrast, the blue arc is the normal operating range (flaps retracted or in a safe clean configuration), and the yellow arc indicates the caution range.

The White arc shows the flap operating range. It covers speeds from the stall speed with flaps down (the lower limit) up to the maximum speed with flaps extended (Vfe). This is the range where the wing/flap configuration is within its safe structural limits when flaps are deployed. Beyond Vfe, extending flaps is not allowed because you’d risk structural damage, and below the lower limit you would stall with flaps down. In contrast, the blue arc is the normal operating range (flaps retracted or in a safe clean configuration), and the yellow arc indicates the caution range.

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