Question

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

(a) True

(b) False

The question was posed to me by my school teacher while I was bunking the class.

My doubt stems from Range and Endurance for Aircraft with Power Producing Engines in section Cruising Performance of Aircraft Performance

Answer 1

Right answer is (a) True

To explain: 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.