Enhance your boating experience with the robust performance of the Simrad NAC-3 autopilot computer, engineered to deliver precise steering control for larger vessels. As the core intelligence of your autopilot setup, it seamlessly manages hydraulic pumps, mechanical drives, and solenoid valves, ensuring steady navigation even in challenging sea conditions. Ideal for powerboats and sailing yachts exceeding 10 meters, this high-current unit powers through demanding maneuvers while integrating effortlessly with your onboard electronics.

Why the NAC-3 Stands Out for Serious Boaters

Boat owners upgrading to autopilot systems for extended cruises or competitive sailing appreciate the NAC-3's ability to handle high loads without faltering. Its Continuum steering technology minimizes wear on steering gear by optimizing response times and reducing overcorrections, leading to smoother rides and longer equipment life. For outboard or sterndrive setups common on planing hulls, the innovative Virtual Rudder Feedback eliminates the hassle of mounting traditional sensors, saving time and reducing clutter in tight engine spaces.

Powerful Drive Capabilities

The NAC-3 excels with high-current outputs, supporting continuous operation at 30 amps and peaks up to 50 amps for short bursts. This makes it perfect for robust hydraulic rams like those in the RPU160 or RPU300 series, mechanical drives such as the DD15, or hydraulic linear units. A dedicated 3-amp clutch output ensures reliable engagement, while solenoid control handles on/off steering for bigger boats with confidence. Skippers report fewer hydraulic fluid temperature spikes during long passages, thanks to intelligent power management.

Key Features at a Glance

• High-Power Handling: Drives heavy-duty pumps and valves with 30A continuous/50A peak rating.
• Virtual Rudder Feedback (VRF): No physical sensor needed for many outboard and I/O boats.
• Flexible Feedback Support: Works with NMEA 2000 RF25 units or frequency-output RF300 sensors.
• Seamless Networking: NMEA 2000 for sensors, controllers, and multifunction displays; NMEA 0183 inputs/outputs.
• NFU Ready: Connections for non-follow-up levers and external mode switching.
• Alarm Integration: External output for buzzers or relays to alert on issues.
• IPX7 waterproofing for marine durability.

Effortless Connectivity for Modern Helm Stations

Integrate the NAC-3 into your network without headaches. It communicates via NMEA 2000 with compass sensors, feedback units, and Simrad displays, allowing centralized control from anywhere on deck. NMEA 0183 ensures compatibility with legacy gear. For sailors, B&G Reflex algorithms enhance wind-aware performance when paired with compatible instruments, making tacking and gybing more intuitive.

Technical Specifications Overview

Installation Tips for Optimal Performance

Mount the compact NAC-3 in a dry, ventilated spot near your drive unit to minimize cable runs. Use the included NMEA 2000 T-connector and extension for quick network drops. Calibrate via connected displays for your hull type—planing boats benefit from VRF setup in minutes. Common pro tip: Secure heavy-gauge power cables directly to batteries with fuses to handle peak loads during autopilot dodges. Professional installers note it pairs best with Precision-9 or HS60 compass for rock-solid heading data.

What's Included in Your NAC-3 Kit

• Main NAC-3 autopilot computer unit.
• 0.61m (2ft) NMEA 2000 extension cable.
• NMEA 2000 T-connector for easy branching.

Frequently Asked Questions

Equip your vessel with the NAC-3 for autopilot reliability that matches the open water's unpredictability. Boaters trust it for everything from coastal hops to offshore adventures.