Mistrim

Watch the pitch trim and be ready to punch off the autopilot if it starts to mistrim the aircraft.

you mistrim the sail and you have a bad case of the slows.

Additionally, it is possible for the pilot to mistrim the system so the parallel actuator is working against a steady load and hence will have a lower stall limit in one direction .

This removes the possibility of a disengage transient due to mistrim when the attitude hold mode is disengaged.

Steady state error due to mistrim moment can be integrated out.

The auto-trim system was shut down automatically, if the mistrim exceeded a pre-defined duration.