Originally Posted by
Util BUS
Tourist
Firstly, if an A320 loses both computer systems then it ends up in direct law and is still completely flyable.
OK, substitue A320 for a dynamically unstable FBW design - say the F-16 or just about any of the current gen airframes. No computer and you lose control in seconds. Yet we do not hear about airframes being lost on a regular basis because of computers doing the 'blue screen of death' scenario.
Redundancy, meticulous testing and planning.