Hi rudderrudderat:
In Post 1407 I wrote:
And number 2 is that when airspeed information, something that the flight control system relies on heavily, becomes unreliable, that autotrim of the THS should drop out with the autopilot.
and I got beat up about it. I'm not wild about the idea of autotrim for the reasons that gums mentioned earlier and I still think that autotrim should drop out whenever the system becomes confused.
If it had, things might have been simpler for the crew of AF447.