Question

Determine the value of best glide ratio velocity. Consider velocity for minimum sink rate is 10 fps.

(a) 13.15 fps

(b) 20 fps

(c) 11 fps

(d) 34 fps

I got this question in an interview for internship.

I need to ask this question from Flight Mechanics in chapter Performance and Flight Mechanics of Aircraft Design

Answer 1

Correct option is (a) 13.15 fps

For explanation I would say: Given, velocity for minimum sink rate v = 10 fps

Velocity for best glide ratio = v/0.76 = 10/0.76 = 13.15 fps.