Question

For a typical gliding flight, thrust will be ________

(a) zero

(b) equal to the lift

(c) always same as drag

(d) always same as weight

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

Asked question is from Flight Mechanics topic in portion Performance and Flight Mechanics of Aircraft Design

Answer 1

Right answer is (a) zero

To explain I would say: For a typical gliding flight, Thrust Will be zero. Gliding flight is often termed as unpowered flight. Lift and drag during gliding flight will be determined by using glide angle.