Question

The minimum drag speed determines the best operating speeds of aircraft with thrust producing engines.

(a) True

(b) False

I had been asked this question in exam.

The above asked question is from Minimum Drag Speed in portion Aircraft Force Systems and the Equations of Motion of Aircraft Performance

Answer 1

Correct answer is (a) True

Easy explanation: The minimum drag speed determines the best operating speeds of aircraft with thrust producing engines. The correct equation for minimum speed drag is Vemd=\(\sqrt[4]{\frac{ZW^2}{Y}}\) where Y is a constant, V is velocity, W is weight, Y is a constant and Vemd is minimum speed drag. Induced drag is the function of lift and caused when an aircraft is moving in the air.