Question

Which of the following is correct?

(a) Landing gear is also termed as undercarriage

(b) Tail dragger arrangement is most stable

(c) Lift coefficient is same as weight always

(d) Lift to thrust is called thrust loading

I have been asked this question during an interview for a job.

My question is based upon Landing Gear Arrangements topic in division Landing Gear and Subsystems of Aircraft Design

Answer 1

Correct answer is (a) Landing gear is also termed as undercarriage

Easiest explanation: Landing gear is also called undercarriage. Tail dragger arrangement is inherently Unstable. Lift coefficient cannot be same as weight always. Lift to drag ratio is called aerodynamic efficiency and very important parameter for aerodynamic consideration.