A rudder control system having adjustable rudder drive turn off and "turn
on," and component wear monitoring. The rudder drive "turn off" being
adjusted in accordance with the rudder stop position relative to the
rudder order stop position, thereby improving position accuracy.
Frequency of system "turn on" is compared to an acceptable "turn on"
frequency for solenoid operation. Should the "turn on" frequency exceed
the acceptable "turn on" frequency, the rudder angle at which "turn on"
is implemented is adjusted to protect solenoids in the system from
burnout. The rate of change of the rudder repeatback signal is monitored.
A slow rate of change providing an indication of some component problem.