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Why are actuators used in FBW systems?

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Why are actuators used in FBW systems?

(a) Movement of control surfaces

(b) Reduce drag

(c) Increase lift

(d) Safety equipment

This question was posed to me during an online exam.

My query is from Fly-By-Wire Technology topic in division Fly by Wire Flight Control of Avionics

1 Answer

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Correct option is (a) Movement of control surfaces

Easiest explanation: Unlike traditional aircraft, FBW system uses electrical signals to operate the actuators which in turn move the control surface in place of mechanical linkages and control rods directly connecting the pilot’s stick to the control surfaces.

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