dennis@home wrote:


"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.

Correct

Airbus use fly by wire as did concord but the planes are not
particularly unstable.

As do quite a lot of stable aircraft, but the one thing they usually
have in common is a mechanical back up if their computers fail. Even the
true fly by wire and nothing else have a back up to get them home. It's
a bit like the engine management in a car. If it goes bits up, there is
still the ability to get you home in the software.

You are confusing making an unstable plane (stealth, F22, etc.)

Why would a stealth aircraft require fly by wire?

and
needing fly by wire to fly it with what fly by wire is, its just a
control system designed for a particular purpose.

The purpose is to allow a computer to fly the aircraft and nothing else.
Let the pilot get on with seducing the air stewardess, ready for the
sleepover. ;-)
Remember the Trident aircraft, the first to be cleared for take off and
landing in fog?
That was computer assisted flight.

Dave