Question

What is the function of wing twist?

(a) To improve stall characteristics at tip

(b) To reduce lift by tail

(c) To provide lofting

(d) To increase engine thrust

I had been asked this question in an international level competition.

I'd like to ask this question from Wing Geometry-2 in portion Airfoil and Geometry Selection of Aircraft Design

Answer 1

Correct choice is (a) To improve stall characteristics at tip

The explanation: Wing twist is used to delay the stall at tip typically. Wing twist can be used to rearrange the lift distribution of the wing. Lofting is skin modelling.