This question serves as one chance for your interviewer to hear your talk about some very technical knowledge of Aerospace Engineering. While this is terminology that you should know like the back of your hand, it is important that you take the time to explain both how fuel weight fraction is defined and what effect it has on the overall fuel consumption of the aircraft. As you answer, be sure to thoroughly explain how the fuel weight fraction effects herformance of an aircraft and your ideas on what an ideal fuel fraction is.
