*** Posted by RUN ***
[Can you tell me how this works?

Hi Tiger,

I will tell you what I know. Modern jet's use the fly-by-wire system for many reasons, it has a number of advantages. Firstly remember the old planes with levers to control the surfaces, well as planes got faster you needed a stronger arm. Imagine going at Mach 1.5 and pulling back on the stick, you would need to do it with both hands.
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Rapier]

Just to add a little. You don't need a fly by wire system to get rid of the stick forces. As far as I know most of the jets that have been made, if not all, have had rudders that were moved by hydraulic actuators. So the only stick force to overcome is moving the push - pull rods or wires that controlled the actuators.
In an aircraft without hydraulic actuators you can also reduce a lot of the stick forces by the way you design rudders. Some airplanes also use a little "trimflap" to get rid of the stickforces.

RUN