Question

Find the required amount of touchdown speed if stall speed is 100knots.

(a) 115 knot

(b) 120 knot

(c) 100 knot

(d) 99.2 knot

I have been asked this question by my college director while I was bunking the class.

My doubt is from Flight Mechanics in division Performance and Flight Mechanics of Aircraft Design

Answer 1

The correct option is (a) 115 knot

To elaborate: Touchdown speed = 1.15*stall speed = 1.15*100 = 115 knot.