Question

Which of the following is incorrect?

(a) Tightly packed fuselage will not affect maintainability

(b) Waiting area can be minimized by lowering fineness ratio

(c) Fineness ratio is division of length of fuselage to maximum diameter

(d) Wetted area can affect the drag properties

The question was posed to me in my homework.

The query is from Configuration Layout in division Configuration Layout Considerations of Aircraft Design

Answer 1

Right choice is (a) Tightly packed fuselage will not affect maintainability

To explain: Tightly packed fuselage makes it difficult to access some vital components for maintenance. This will affect the maintainability of the aircraft. Wetted area can be reduced by tight packaging or by lowering the fineness ratio or by both.