Core autopilot system components – just add a drive unit and controller. Ideal for rudder-steered boats above 10 metres (35 feet) in length. Compatible with high-current drive pumps, mechanical drives, hydraulic linear drives and solenoid valves. Take control with the Simrad AP44 Autopilot Controller, IS42 display and OP12 keypad, or a networked multifunction display. Easy setup with automatic tuning and compass calibration. Includes the Simrad NAC-3 Autopilot Computer, RF25N rudder feedback unit, Precision-9 solid-state compass, plus all cabling and connectors required to build an NMEA 2000 network backbone or connect your autopilot system to an existing NMEA 2000 network.