Simrad NAC-3 Autopilot Core Pack - NAC-3, Precision-9, RF25N & N2k Starter Kit [000-13336-001]NAC 3 Autopilot Core Pack NAC 3, Precision 9, RF25N & N2k Starter Kit Comprising of the high current NAC 3 autopilot computer, Precision 9 compass, RF 25 rudder feedback unit & N2k Starter Kit. The NAC 3 Autopilot Computer is the brains behind your autopilot system. NAC 3 contains the control algorithms developed to helm a yacht across a broad range of weather conditions and sea states, alongside the electronics needed to operate a hydraulic or