Question

A military Aircraft should be designed to have ______

(a) lowest possible empty weight fraction

(b) highest possible empty weight fraction

(c) empty weight fraction higher than 0.89

(d) empty weight fraction unity

This question was addressed to me by my school teacher while I was bunking the class.

My enquiry is from Conceptual Sketch Sizing in division Conceptual Sketch Sizing of Aircraft Design

Answer 1

The correct choice is (a) lowest possible empty weight fraction

To explain: One of the most important and crucial requirements of military aircraft is minimum possible weight. The lower the weight lesser the drag and lesser the thrust requirement. Hence, a military aircraft should as lightest as possible.