Question

What is the use of inlet section?

(a) Slow down the incoming air

(b) Increase the mach number of incoming air

(c) Increase lift by wing

(d) Increase lift curve slope of tail

I have been asked this question in unit test.

I'm obligated to ask this question of Propulsion topic in section Propulsion and Fuel System Integration of Aircraft Design

Answer 1

Correct choice is (a) Slow down the incoming air

Best explanation: One of the primary function of emulate is to reduce velocity of incoming air. Lift produced by wings can be increased with the help of high lift device such as flaps. Lift curve slope can be altered by using different angle of attacks.