Simrad NAC-2 Low Current Autopilot Computer

The Simrad NAC-2 Low Current Autopilot Computer represents a significant advancement in hands-free helm control for recreational and professional vessels. Designed for boaters who demand reliable, precise steering across extended cruising hours, this autopilot computer eliminates fatigue-induced navigation errors while freeing you to focus on sea conditions, waypoints, and crew management. Whether running a long offshore passage or maintaining course through variable coastal waters, the NAC-2 delivers the stability and repeatability that separates competent vessel handling from exceptional seamanship.

Operating on low current draw architecture, the NAC-2 minimizes drain on ship's electrical systems—a critical advantage on vessels where battery reserves directly impact emergency communications and auxiliary equipment availability. The computer integrates seamlessly with Simrad's established marine electronics ecosystem, accepting input from compass sensors, GPS receivers, and rate-of-turn gyros to calculate steering corrections in real time. Its adaptive control algorithms account for sea state, wind conditions, and vessel loading, automatically adjusting rudder authority to maintain course without hunting or overshooting that degrades fuel economy and comfort.

The NAC-2 suits cruisers, fishing vessels, and commercial operators seeking retrofit integration into existing Simrad systems or greenfield autopilot installations on vessels under approximately 100 feet. Installation requires connection to a compatible helm unit, steering actuator, and vessel sensors—a straightforward process for dealers familiar with marine wiring standards. At 4 pounds and designed for compact mounting in engine rooms or console spaces, the NAC-2 adapts to retrofit and new-build environments alike, providing the unattended course-keeping capability that transforms long passages from exhausting to sustainable.