Question

The best rate of climb occurs when the excess thrust power is minimum than drag power.

(a) True

(b) False

I got this question in an international level competition.

Origin of the question is Climb and Descent Performance with Thrust-Producing Engines topic in portion Climb and Descent Performance of Aircraft Performance

Answer 1

The correct option is (b) False

The explanation is: The best rate of climb occurs when the excess thrust power (FNV) is maximum than the drag power (DV). As the ideal power increases linearly with true airspeed the best gradient of climb is predicted to be at an airspeed greater than minimum drag speed.