NAC-3 Autopilot Computer

The NAC-3 Autopilot Computer is the brains behind your B&G autopilot system. It contains the electronics needed to operate a hydraulic steering pump or mechanical drive unit, while also interfacing with other components including heading sensors and rudder feedback units. The NAC-3 was designed for boats ten metres (35 feet) or greater in length and is rated to operate high-current pumps, mechanical drive units, and solenoid valves (30 amps continuous/50 amps peak).

NAC-3 Autopilot Core Pack: Comprising the high-current NAC-3 autopilot computer, Precision-9 compass and RF-25 rudder feedback unit. Ideal for vessels above 10 metres/35 feet in length.

NAC-3 Autopilot Computer
This is the brains behind your B&G autopilot system. It contains the electronics needed to operate a hydraulic steering pump or mechanical drive unit, while also interfacing with other components including heading sensors and rudder feedback units. The NAC-3 was designed for boats ten metres (35 feet) or greater in length and is rated to operate high-current pumps, mechanical drive units, and solenoid valves (30 amps continuous/50 amps peak).
• B&G Reflex Sailing algorithms
• Plug and Play installation
• 12/24V input 8A continuous output, 12A peak
• Solenoid output capable
• 3A clutch output
• Optional Auto/Standby Switch

Precision-9 Compass
It supplies heading and rate-of-turn information to Simrad, B&G and Lowrance autopilot, radar and navigation systems. Based on reliable solid-state sensor technology, this compact compass offers easy installation aboard any vessel.
• Heading, Rate Of Turn (ROT), roll, and pitch output over NMEA 2000®
• Heading and ROT calculated using sensor data from 9 axes of rotation and motion
• Accurate and reliable solid-state sensor technology
• Heading accuracy of ±2° after calibration
• Easily adjustable mounting bracket allows bulkhead or up-mast installation
• IPX7 waterproof. Best in class.
• Simple installation with a single NMEA 2000® connection

RF25 Rudder Feedback Unit
The RF25 is a medium duty rudder feedback unit with a micro-C interface. The RF25 will attach directly to industry standard micro-C systems for straight-forward installation.
• +/- 120 Degree Measurement
• Precise and Accurate; +/- 0.5 Deg
• Micro-C Connectivity
• 5.5m attached micro-C Cable


• Core components for a B&G Reflex autopilot system – just add a drive unit and controller
• Ideal for boats above 10 metres (35 feet) in length
• Includes the high-current NAC-3 autopilot computer
• Compatible with high-current drive pumps, mechanical drives, hydraulic linear drives, and solenoid valves
• Control with the B&G Triton² display and Triton² keypad, or a networked multifunction display
• Includes the RF25N rudder feedback unit
• Includes the Precision-9 solid-state compass for accurate heading data that’s automatically fine-tuned as you travel
• Includes all required NMEA 2000® network connectors and cables
• Easy setup with automatic tuning and compass calibration
• NMEA 0183® input