Originally Posted by
Lyman
Did someone forget to add load factor in Yaw?
No - even on the later FBW models, the rudder is independent from the systems that govern thrust and PFC settings, probably because in aircraft of the low-tail, podded design it can exert too much authority. If there's a yaw aspect to the commanded flightpath then the system will use rudder trim and thrust to maintain it.
It's telling that in over two decades of FBW Airbus models in service, not once has there been an attempt to couple full rudder control into the system. This suggests a technical, rather than cost-driven, challenge to do so.