Question

Specific endurance is maximum when the aircraft is flying at minimum drag speed.

(a) True

(b) False

The question was asked in unit test.

The doubt is from Range and Endurance for Aircraft with Power Producing Engines in portion Cruising Performance of Aircraft Performance

Answer 1

Right answer is (a) True

Easiest explanation: Specific air range is maximum when the aircraft is flying at minimum drag speed and specific endurance is maximum when the aircraft is flying at minimum power speed. This is the same relation with thrust producing engines.