An outboard motor having a steering control and a rudder reference sensor, both connectible to a computer-operated guidance system. The steering control utilizes a linear actuator connected through a linkage to the motor. The actuator utilizes a rack that moves along the axis about which the motor pivots...http://www.google.de/patents/US7666039?utm_source=gb-gplus-sharePatent US7666039 - Outboard motor steering assembly with rudder reference sensor
