Ideal Entry-level Autopilot System Includes Compact Reactor 40 starter pack and GHC 20 marine autopilot control unit. Recommended only for single-engine outboard boats less than 30' long. Solid-state 9-axis Attitude Heading Reference System (AHRS) Minimizes heading error, course deviation, rudder movement and power consumption while providing a comfortable ride. Minimal commissioning and calibrationDesigned for boats less than 30' long, the Compact Reactor 40 hydraulic autopilot provides relief from manually holding the wheel to maintain course, especially when cruising at moderate to high speeds. Sit back at the helm, and enjoy your time on the water as the solid-state 9-axis AHRS technology delivers a comfortable ride. Offered in 3 different corepacks, this autopilot lets you configure your autopilot setup, depending on the features you need and how much you want to spend. Buy the starter pack (compatible chartplotter required), add a GHC 20 marine autopilot control unit, or add both GHC 20 and the Shadow Drive attachment. The autopilot is easy to install with flexible mounting options and quick, easy commissioning. Choose a corepack with our patented Shadow Drive technology, and simply turn the wheel to take control of the helm; hold a constant course to re-engage. It integrates with compatible Garmin electronics to control the autopilot from the chartplotter display. And it can be engaged to follow an Auto Guidance path (requires LakeVü HD Ultra maps or BlueChart g2 Vision HD charts). Solid-state 9-axis AHRSWith its advanced solid-state 9-axis AHRS, Compact Reactor 40 provides you with more flexible mounting options. In addition, this new system greatly minimizes heading error, course deviation, rudder movement and power consumption while providing a comfortable ride for all on board. Reacts to ConditionsThis amazing autopilot actually reacts to the sea to hold your course. Even when the boat is pitching and rolling, you can remain confident that the Compact Reactor 40 autopilot will keep you on your desired course. Minimal Commissioning and CalibrationAll autopilots require commissioning and calibration to work properly. We know you just want to get on the water, so we made this process as fast and easy as possible. Thats the power of simple.