"The Natural Philosopher" wrote in message
...

If it isn't at the center of lift, teh plane will fall over. Fly by wire
wire is equivalent to riding a unicycle. It can be done, but requires
constant input.

Fly by wire has nothing to do with how stable the plane is.
Airbus use fly by wire as did concord but the planes are not particularly
unstable.

You are confusing making an unstable plane (stealth, F22, etc.) and needing
fly by wire to fly it with what fly by wire is, its just a control system
designed for a particular purpose.