Question

Which of the following is correct?

(a) Fuselage can affect aerodynamic efficiency

(b) Fuselage cannot affect aerodynamic efficiency

(c) Aerodynamic efficiency is not dependent on the fuselage at all

(d) Aerodynamic efficiency will always be half if fuselage is long

I had been asked this question during an online interview.

My enquiry is from Configuration Layout in division Configuration Layout Considerations of Aircraft Design

Answer 1

The correct option is (a) Fuselage can affect aerodynamic efficiency

To explain: Fuselage is primary drag producing component. The overall smoothness and how fuselage is designed will affect the drag properties of the aircraft. As a result of which fuselage will affect the aerodynamic efficiency of the aircraft as well.