mike regish writes:

The springs don't really serve the "same" purpose. The springs just return
the stick to the center position. When trimming a real plane, you hold yoke
pressure until your speed and altitude stabilize, then trim out that
pressure until you can let go of the yoke and the plane remains stable.

OK, but aircraft like those of Airbus have no mechanical connections
to the control surfaces. How do they do it? It must be some sort of
elaborate force-feedback joystick, too (if they provide any feedback
at all).

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