{"product_id":"qbp931616","title":"Simrad NAC-3 Autopilot Core Pack, For Rudder-Steered Boats 10 m+, Precision-9 Solid-State Compass, RF25N Rudder Feedback Unit, NMEA 2000 Micro-C Backbone Kit","description":"\u003ch6\u003eOverview\u003c\/h6\u003e\u003cp\u003eThe Simrad 000-13336-001 is a NAC-3 autopilot core pack that combines the NAC-3 autopilot computer, Precision-9 compass, RF25N rudder reference sensor, and a Micro-C NMEA 2000 backbone starter kit. It is intended for rudder-steered boats above 10 metres (35 feet), and the NAC-3 drive output can run 12\/24 V reversible motors up to 30 A continuous (50 A peak for 1 second).\u003c\/p\u003e\u003cp\u003eThis pack covers the core sensors and network pieces for a below-deck autopilot install, but you still need to add a drive unit that matches your steering system and a control interface (a dedicated autopilot controller or a compatible Simrad multifunction display). The system uses NMEA 2000 for data sharing across the boat and also supports NMEA 0183 input when you need to bring in legacy data.\u003c\/p\u003e\u003cp\u003eWith the Precision-9 providing heading and rate-of-turn data and the RF25N supplying rudder position feedback, you get the information the autopilot computer needs to steer cleanly in real conditions, from dockside slow-speed handling to longer runs offshore.\u003c\/p\u003e\u003ch6\u003eKey features\u003c\/h6\u003e\u003cul\u003e\n\u003cli\u003eCore pack for rudder-steered boats above 10 metres (35 feet); add a drive unit and a control interface to complete the system\u003c\/li\u003e\n\u003cli\u003eHigh-current NAC-3 drive output for 12\/24 V reversible motors: 30 A continuous with 50 A peak (1 second)\u003c\/li\u003e\n\u003cli\u003eSupports hydraulic pumps, mechanical drives, hydraulic linear drives, and solenoid valves when matched to the steering system\u003c\/li\u003e\n\u003cli\u003eNMEA 2000 Micro-C networking for heading sensor, rudder feedback, autopilot controller, and compatible multifunction displays\u003c\/li\u003e\n\u003cli\u003eNMEA 0183 input for integrating selected legacy instruments and data sources\u003c\/li\u003e\n\u003cli\u003ePrecision-9 solid-state compass with IPX7 rating and heading accuracy of +\/-2 degrees after calibration; outputs heading, rate of turn, pitch, and roll over NMEA 2000\u003c\/li\u003e\n\u003cli\u003eRF25N rudder reference sensor with NMEA 2000 Micro-C interface and IPX6 rating for installations in exposed machinery spaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch6\u003eCompatibility and fit\u003c\/h6\u003e\u003cp\u003eThis core pack is aimed at larger sail and power boats with a conventional rudder and steering gear where a physical rudder feedback sensor is part of the plan. It is suitable for use with high-current drive pumps such as Simrad RPU160 and RPU300, mechanical drives such as the Simrad DD15, hydraulic linear drives such as the HLD2000 series, and solenoid valves.\u003c\/p\u003e\u003cp\u003eIt is a solid fit for coastal cruisers, offshore-capable boats, sportfishers, and commercial-style setups that want autopilot steering tied to both a rate compass and direct rudder position feedback. The drive unit choice should be based on your steering type and current draw, since the NAC-3 is built to handle higher-current loads.\u003c\/p\u003e\u003ch6\u003eInstallation and setup\u003c\/h6\u003e\u003cp\u003eThe included Micro-C backbone hardware can be used to build a small NMEA 2000 network from scratch or to tie this autopilot into an existing backbone. Precision-9 and RF25N connect via Micro-C, and the NAC-3 uses the network to share sensor data with your autopilot controller and display.\u003c\/p\u003e\u003cp\u003eMount the Precision-9 where it can stay clear of magnetic interference; it can be bracket mounted on a bulkhead or flat surface, and its IPX7 rating supports external mounting locations when needed. Install the RF25N so the linkage moves smoothly through full rudder travel; it can be mounted horizontally, vertically, or upside-down.\u003c\/p\u003e\u003cp\u003eAuto-tuning and automatic compass calibration handle much of the setup once wiring is complete. The drive wiring is high-current, so cable sizing and circuit protection should be matched to the requirements of your specific pump or drive unit.\u003c\/p\u003e\u003ch6\u003eWhat’s included\u003c\/h6\u003e\u003cul\u003e\n\u003cli\u003eNAC-3 autopilot computer\u003c\/li\u003e\n\u003cli\u003ePrecision-9 solid-state compass\u003c\/li\u003e\n\u003cli\u003eRF25N rudder reference sensor with transmission link and 5 m NMEA 2000 Micro-C cable\u003c\/li\u003e\n\u003cli\u003eMicro-C backbone kit with network power cable, 4.5 m NMEA 2000 cable, three T-connectors, and two network terminators\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Simrad","offers":[{"title":"Default Title","offer_id":52269082804405,"sku":"QBP931616","price":2549.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0977\/8171\/1029\/files\/1298500_qbp931616.jpg?v=1771541773","url":"https:\/\/www.qualityboatparts.com\/products\/qbp931616","provider":"Quality Boat Parts","version":"1.0","type":"link"}