Some boats may have a tendency of not responding to small rudder commands around the course keeping position because of a small rudder, a rudder deadband, whirls/disturbance of the water-stream passing the rudder or it is a single nozzle water jet boat.By manually adjusting the minimum rudder function, the course keeping performance might be improved on some boats. This will however increase the rudder activity.¼ Note: Only set a value for minimum rudder if it proves to give a better course keeping performance in calm sea. It should be set after the autotune has been performed and a fine tuning of the rudder paramete