Simrad NAC-1 Autopilot Computer

Build a compatible small-boat autopilot system around the Simrad NAC-1 Autopilot Computer, a low-current course computer for single-engine outboards up to 30 ft. The unit supports Simrad Pump-1 reversible hydraulic pumps and Helm-1 cable drives, allowing selection around the vessel’s existing hydraulic or mechanical cable steering. A 12V DC supply, NMEA 2000 Micro-C connection, and bulkhead or vertical mounting location are required for installation.

The NAC-1 provides 8A continuous output with up to 16A peak drive capacity. Standby draw is 130 mA, and the IPX5-rated high-impact ABS housing operates from minus 25°C to 55°C. The compact chassis measures 180 mm long by 170 mm wide and weighs 0.5 kg, or 1.1 lb. Included accessories consist of NMEA 2000 network cables and a power cable.

System Integration and Drive Selection

This Simrad NAC-1 is a course computer, not a complete autopilot package. It requires a compatible Pump-1 or Helm-1 drive, heading sensor, control display, NMEA 2000 backbone, 12V supply, and complete steering arrangement. The selected drive must match the installed hydraulic or mechanical cable-steering system.

Plan a protected bulkhead or vertical mounting location around the 180 mm by 170 mm chassis, wiring access, drive terminals, and NMEA 2000 connection. Confirm the outboard vessel length, steering type, selected drive, display compatibility, and 16A peak output requirement before system installation and commissioning.

Why Choose the Simrad NAC-1 Autopilot Computer

The Simrad NAC-1 Autopilot Computer provides an 8A continuous and 16A peak course-computer output for compatible single-engine outboard steering systems. Its Pump-1 and Helm-1 compatibility, 12V supply, 130 mA standby draw, NMEA 2000 Micro-C connection, IPX5 housing, 180 mm by 170 mm dimensions, 0.5 kg weight, and included network cables provide defined checks for a small-boat autopilot installation.

Warranty and Support

Simrad warranty terms vary by product and region, and the supplied specifications do not provide a named warranty period for the NAC-1 computer. can help you review vessel length, Pump-1 or Helm-1 selection, steering compatibility, bulkhead mounting space, NMEA 2000 requirements, 12V power, 8A continuous output, and required display and sensor components before purchase. Review the applicable Simrad warranty coverage and documented package contents before ordering.

Before Ordering the Simrad NAC-1 Autopilot Computer

Confirm that your vessel is a single-engine outboard up to 30 ft and uses compatible hydraulic or mechanical cable steering. You should verify Pump-1 or Helm-1 drive selection, NAC-1 mounting space, 12V circuit capacity, 16A peak output requirement, NMEA 2000 network capacity, heading-sensor placement, display compatibility, and complete autopilot-system requirements before purchase.