The ERJ has a 3 axis AP and it was very annoying during sim because every time you lose an engine, the AP kicks off. It's very annoying to have chimes and warnings going off and to top it off have your AP kick off before entering a hold or something. Our company didn't allow us to climb and decent on single engine with the AP on so that was pretty lame as well. At least on the CRJ if you'd lose an engine the AP would keep flying the airplane into the hold, you just sat there controlling the rudders. That is a plus in my opinion. Might be a stupid question considering those big props but does the AP kick off on the Q400 if an engine fails in flight since it's a 2 axis AP?