Question

What does FBW use to scale the control surface deflection according to the aircraft’s airspeed and height?

(a) Air Data Computer

(b) Flight Management System

(c) Flight Control Computer

(d) Autopilot system

This question was addressed to me during an online exam.

I need to ask this question from Fly-By-Wire Technology in division Fly by Wire Flight Control of Avionics

Answer 1

The correct choice is (a) Air Data Computer

To elaborate: FBW uses an Air Data System to scale the control surface deflection according to the aircraft’s airspeed and height variations. The need for air data information on the airspeed and height is to compensate for the very wide variation in the control surface effectiveness over the aircraft’s flight envelope of height and speed combinations. The Air Data Computer provides various information available from the airstream such as airspeed, altitude, and angle of attack.