Question

Which of the following is a correct statement?

(a) Increase in initial weight of aircraft implies increase in fuel available for cruise

(b) Decrease in initial weight of aircraft implies increase in fuel available for cruise

(c) Increase in initial weight of aircraft implies decrease in fuel available for cruise

(d) Increase in initial weight of aircraft does not have any effect on the fuel available for cruise

This question was posed to me at a job interview.

My question is based upon Effect of WAT on Cruise Performance in portion Cruising Performance of Aircraft Performance

Answer 1

Correct option is (a) Increase in initial weight of aircraft implies increase in fuel available for cruise

To elaborate: Increase in initial weight of aircraft implies increase in fuel available for cruise. The increase in initial weight increases the range of the aircraft which results in increasing the aircraft efficiency.