Question

Just before reaching the lift-off speed the aircraft is rotated into a nose-up altitude which is equal to the lift-off angle of attack.

(a) True

(b) False

This question was addressed to me by my school teacher while I was bunking the class.

The question is from Take-off Performance topic in portion Take-off and Landing Performance of Aircraft Performance

Answer 1

Right option is (a) True

To elaborate: The lift-off speed is the speed at which the aircraft generates enough lift to become airborne. Just before reaching this speed the aircraft rotates into a nose-up altitude which is equal to the lift-off angle of attack.