>Now in an emergency, systems failures, the Airbus will downgrade to how the Boeing works. Full back stick will be an unlimited pitch-up and the pilots need to

>Now in an emergency, systems failures, the Airbus will downgrade to how the Boeing works. Full back stick will be an unlimited pitch-up and the pilots need to manually figure out what the maximum is. You're referring to Alternate Law and the more extreme version, Direct Law. One note is that it's not always an emergency that can cause this. If important sensors like AOA or airspeed disagree (for example, due to a temporarily-frozen pitot tube), that will also reduce to alternate or direct depending on the situation. Unfortunately this can bite pilots badly if they either don't notice or don't understand the new situation quickly enough. There have been one or two crashes attributed to this over the years. [See Air France 447]