NAC-D Autopilot Computer for Steer By WireNAC-D is a steer-by-wire autopilot solution for Electronic Vessel Control Systems (steering systems with a digital interface).With NAC -D, boaters with SeaStar Optimus, Yanmar VC10/JC10, Volvo IPS/EVC or Yamaha helm master/single-engine control systems can benefit from all the full features and performance of Simrad autopilots.Easy to installRequires only the connection of two Micro-C connectors there is no requirement for an additional hydraulic pump, rudder sensor installation, or dockside rudder calibration. This saves boaters time and money.Automatic switchingFeaturing Continuum steering and support for the SteadySteer, the NAC -D allows automatic switching between two-speed profiles delivering optimal steering performance at both low and high speeds.Flexible choiceChoose the controller to suit your preference from dedicated controllers like the AP 44 or AP 48.Simrad autopilot systems incorporate state-of-the-art electronics and represent over 70 years of experience and development. Simrad autopilots can reduce your workload and fatigue and improve your situational awareness and safety, helping you arrive fresher at your destination.Features SeaStar Solutions, Volvo, Yanmar and Yamaha approved control system interface; Control via AP 44, AP 48; No need for an additional hydraulic pump, rudder sensor, or dockside calibration; SteadySteer feature included; Steer to a waypoint, heading, or set turn pattern, such as a U-turn, Spiral turn, and many more the NAC -D can even initiate a zigzag turn; CAN-bus data connectivity - connection to Optimus steering systems via the CAN-bus data network; - cis2:mm5mnJlm -Specifications: Steering Type: Steer-By-Wire; Box Dimensions: 3"H x 4"W x 10"L WT: 0.5 lbs; UPC: 9420064115747; Owner's Manual (pdf)