Originally Posted by
airtren
The trajectory the "a/c" followed immediately after the "a/p disconnect" depends on which type of segment and which position were the control surfaces of the "a/c" at the very moment of the "a/p disconnect".
My understanding is that the "a/c" would continue "level" under inertia and position of control surfaces as left after the "a/p disconnect", ONLY and ONLY if the "a/c" were on a "level" segment.
The Question is not so much what the positon of the control surface are upon AP disconnect but rather how the change from Roll Normal Law (Rate command) to Roll Direct Law (Deflection) is handled in that regard. I haven't found any reference to that but would assume that control surfaces return to normal at that point.
If Roll Normal Law was compensating for a constant Air Mass movement (vertical? lateral?) that could lead to a certain amount of roll in that case.
Anyone here knowing how this is done exactly?