TMQ AP55 Display Head Operation And Installation page 12

IMPORTANT!!
Before entering AUTO mode, ensure that the rudder
is in the centre position (i.e.: the vessel is steering
approximately straight ahead). If you do not do this,
the course steered will be different to what is
displayed.
The AP55 Autopilot will select the position of the rudder when
AUTO is selected as the position of the rudder to allow the vessel
to steer straight ahead. This can be an advantage in most vessels
when a slight amount of helm from the physical centre position is
required for the vessel to go straight.
TMQ AP55 Display Head Page 12 Ver1.0 08/12/2005