Raymarine SPX-5 Grand Prix Tiller Pilot System  Advanced cockpit mounted drive autopilot system for tiller steered sailing vessels up to 16,500 lbs (7,500kg).    Easy to install and can be detached quickly for safe storage Built in gyro sensor monitors vessel yaw Raymarine Smart steet technology ensures smooth accurate helm control at all speeds Auto Tack automatically turns the vessel at a predetermined angle Wind vane mode maintains course relative to apparent wind (wind data input required) Raymarine Seatalk and SeaTalkng compatible for seamless intergration with Raymarine MFDs, instruments and NMEA2000 networks NMEA 0183 interface for GPS and cgartplotter waypoint tracking  In the Box: ST6002 control head with SeaTalk instrument repeater capabilities SPX-5 below deck course computer Enhanced Grand Prix drive unit Remotely mounted fluxgate compass