Question

Which of the following is correct for maximum jet range?

(a) W/S = \(q*\sqrt{\pi eARCD0/3}\)

(b) W/S = \(q*\sqrt{\pi eAR}\)

(c) W/S = \(q*\sqrt{\pi eARCD0}\)

(d) W/S = q

This question was addressed to me in a job interview.

This key question is from Wing Loading in division Thrust-Weight Ratio and Wing Loading of Aircraft Design

Answer 1

Correct option is (a) W/S = \(q*\sqrt{\pi eARCD0/3}\)

For explanation: From range formula of jet aircraft maximum range is possible if aircraft is operating at wing loading W/S = \(q*\sqrt{\pi eARCD0/3}\). W/S = \(q*\sqrt{\pi eARCD0}\) is wing loading for maximum loiter performance.