The GHP REACTOR autopilot is the ideal solution for vessels with hydraulic steering system. Fitted with a spin-off of aerospace technology and with a solid-state 9-axis AHRS compass, the GHP REACTOR mounts nearly anywhere, in any orientation. Even when the boat is pitching and rolling in rough water, you can remain confident that the GHP Reactor autopilot will keep you on your desired course. The patented Shadow Drive™ technology automatically disengages the autopilot if the helm is turned, allowing the helmsman to maneuver the boat. The autopilot automatically re-engages when the helmsman holds a steady course.