[zipper]

...key components in fly-by-wire systems, which use computers and wires instead of mechanics and hydraulics to control a plane's flight.

The A330 has no hydraulic servos to power the control surfaces?

I guess they'd better tell Airbus to rewrite the flight manual!!!

http://www.scribd.com/doc/10016906/a330hydraulic

[ground_fog]

I believe the B-777 is the same way . They say it makes the frame weigh less which is more efficent. Personally when I fly overseas, it’s usuallu on a B-767-which has control cables right up to the yoke-gives me a warm feeling inside.

[MortMan]

A hydraulic servo is merely the muscle end of fly-by-wire.