Barking Mad - read the replies to you again - there are no stops for the rudder to contact,The linear actuators will only act as stops if there is misrigging and overtravel.What is too fast movement?. The only flight control system damage I have ever seen in 40 years as a maintenance engineer is on two occasions I have seen failure of actuator shafts - one due to internal corrosion the other from unknown causes.You may not be aware that in flight, rudder travel is limited by Q feel or speed controlled travel movement. If I recall correctly on the BAC 1-11 there was no rudder movment by the pedals over a certain speed - only the trim system operated.