Question

Determine approximate value of approach angle if, overnose angle is 20° and approach speed is 100knots.

(a) 13°

(b) 5°

(c) 2°

(d) 3°

The question was posed to me by my school principal while I was bunking the class.

My doubt is from Crew Station in division Crew Station, Passengers, and Payload of Aircraft Design

Answer 1

The correct option is (a) 13°

The explanation is: Given, overnose angle O = 20°, approach speed V = 200knots.

Now, Approach angle A is given by,

A = O – 0.07*V = 20 – 0.07*200 = 13°.