{"product_id":"garmin-reactor-40-direction-electronique-helm-master-pilote-automatique","title":"Reactor™ 40 electronic steering pack for Yamaha® Helm Master™ without GHC™ 20","description":"\u003cp\u003e\n    The \u003cstrong\u003eGarmin Reactor™ 40 Steer-by-Wire electronic steering pack\u003c\/strong\u003e is an advanced autopilot solution specifically designed to integrate with Yamaha® Helm Master™ electronic steering systems. This pack, part of the Reactor 40 range known for its 9-axis AHRS (Attitude Heading Reference System) technology, delivers superior course-keeping responsiveness and accuracy. It minimizes trajectory errors even in demanding maritime conditions, outperforming traditional fluxgate compass-based autopilot systems by compensating for vessel movements across all axes. Unlike complete kits that include the GHC™ 20 display, this version is a core pack intended for installations where a compatible Garmin multifunction display or an existing GHC™ 20 is used for setup and control. It provides a strategic option for Yamaha Helm Master boat owners seeking Garmin autopilot technology without duplicating the display.\n\u003c\/p\u003e\n\n\u003ch3\u003eIntegration and technical performance of the Reactor™ 40\u003c\/h3\u003e\n\u003cp\u003e\n    The system's core is the Course Computer Unit (CCU), the primary autopilot sensor. For optimal performance, the CCU must be mounted on a rigid, stable surface, away from magnetic interference sources. It must be kept at least 60 cm away from items such as iron, strong magnets, high-current cables, and intermittent-use pumps (e.g., toilet or livewell pumps). A manual compass test is recommended to confirm the absence of significant interference (deviation under 3 degrees). Ideally, the CCU should be positioned near the boat's center of rotation, on the centerline, low and slightly forward.\n\u003c\/p\u003e\n\u003cp\u003e\n    Installation requires a connection to an NMEA 2000 network, essential for communication between the CCU, a compatible Garmin multifunction display (or an existing GHC™ 20), and the Yamaha Helm Master system. Initial configuration is performed using the Dockside Wizard and Sea Trial Wizard assistants, accessible from a Garmin compatible helm control display or chartplotter. These assistants guide the user through helm direction detection, speed source selection (NMEA 2000 tachometer or external GPS recommended), tachometer verification, compass calibration, and the Autotune procedure to optimize autopilot settings at sea.\n\u003c\/p\u003e\n\u003cp\u003e\n    This pack is a cutting-edge solution for Yamaha Helm Master users seeking the precision and reliability of a Garmin autopilot without the GHC™ 20 control display. It differs from Garmin Reactor 40 autopilots for hydraulic or mechanical systems by its direct interface with Yamaha’s Steer-by-Wire system, offering seamless integration and optimized performance for this specific platform.\n\u003c\/p\u003e","brand":"Garmin","offers":[{"title":"Default Title","offer_id":55859011649876,"sku":"010-00705-91","price":1703.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0988\/3274\/4788\/files\/main_cb9e29c8-962f-483a-918d-b5ed709aa0f0.jpg?v=1779186324","url":"https:\/\/skysat.fr\/en-gb\/products\/garmin-reactor-40-electronic-steering-helm-master-autopilot","provider":"Skysat","version":"1.0","type":"link"}