Question

Mission leg fuel fraction is defined by _____

(a) weight at end of the phase to that of at the begin

(b) weight at end of the phase to that of at the begin

(c) weight of phase at the begin

(d) weight at end of the phase

I had been asked this question in an interview.

I want to ask this question from Conceptual Sketch Sizing in division Conceptual Sketch Sizing of Aircraft Design

Answer 1

Correct choice is (a) weight at end of the phase to that of at the begin

The best I can explain: Mission leg is nothing but the individual mission segment or phase. Mission leg fuel fraction is weight of the fuel at end of the phase to that of at beginning of that mission leg.