Question

The best gradient of climb is attained at the time of maximum drag speed of the aircraft.

(a) True

(b) False

This question was addressed to me in class test.

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

Answer 1

The correct choice is (b) False

Easiest explanation: The best gradient of climb is attained at the time of minimum drag speed of the aircraft. The best gradient of climb is attained generally at the airspeed ‘u’ of 1. The gradient of climb is given by Emaxsinγ2=τ-\(\frac{1}{2}\)[u^2+u^-2].