Mounting of the drive is critical
Ducati
If it is being done by a professional they will (should) understand exactly how to mount the drive unit, it is critical to proper operation.
I'll assume it is a type 1 linear drive. ( a hydraulic will be essentially the same)
Considerations:
Your rudder post will require a rudder arm for the AP drive. (Edson)
The rudder arm will create a connection poiint 10" from the center of the rudder and on the same horizontal plane.
The drive will connect to the point when:
The rudder is in its central position.
The drive is in the center of its ram extension.
The drive ram is 90 deg. (perpendicular) to the rudder arm.
The drive is on the same horizontal plane as the rudder arm.
The drive is mounted to a shelf bracket or surface that will withstand 750lb of linear force.
Meeting all these conditions will dictate where the base of the drive is mounted.
Picture a completed installation in which a perfect rectangle on the same horizontal plane is formed by the rudder arm, the drive ram, the drive base extended and the center of the rudder extended, all when the drive is in the exact mid stroke and the rudder is in exact center position.
One variable is the rotational angle that the rudder arm is attached to the rudder post. That position will rotate the perfect rectangle, and therefor the base of the drive.
One other item is, you may have to adjust your rudder stops so that the rudder stops and not the drive ram stop the rudder in each of the hard over rudder positions.
BobD
Boston