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The best rate of climb is attained at _____________

(a) airspeed above maximum drag speed

(b) airspeed above maximum power speed

(c) airspeed above minimum power speed

(d) airspeed above minimum drag speed

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This interesting question is from Climb and Descent Performance with Mixed Power Plants topic in section Climb and Descent Performance of Aircraft Performance

1 Answer

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Best answer
Right choice is (c) airspeed above minimum power speed

Explanation: The best gradient of climb is attained at airspeed below minimum drag speed. The best rate of climb is attained at airspeed above minimum drag speed. The actual airspeeds will be a function of excess propulsive thrust.

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