Question

An aircraft has catapult end speed of 30m/s and wind over deck as 20m/s. If maximum CL is 2.6 and density is 1.22 then, find catapult wing loading.

(a) 3276.859

(b) 327

(c) 32

(d) 2

I have been asked this question in an interview for job.

The origin of the question is Wing Loading in division Thrust-Weight Ratio and Wing Loading of Aircraft Design

Answer 1

Correct answer is (a) 3276.859

The best explanation: Given, maximum CL = 2.6, density ρ=1.22

Catapult end speed Ve = 30m/s, wind over deck Vwod = 20m/s

Now, catapult wing loading is given by,

W/S = 0.5*ρ*(Ve+Vwod)^2*CL

W/S = 0.5*1.22*(30+20)^2*2.6

W/s = 3276.859.