Meet the Garmin Reactor 40 Corepack No Control No Drive — a hydraulic autopilot corepack engineered for precise navigation on both powerboats and sailboats. Built around a solid-state 9-axis AHRS, Reactor 40 minimizes heading error, course deviation, rudder movement, and power consumption, delivering a smoother, more confident ride.
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Corepack without head or drive: Designed to be integrated with your existing helm and steering drive system for flexible installation.
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9-axis AHRS: Advanced solid-state attitude, heading, and reference data mounted nearly anywhere for reliable performance in any orientation.
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Shadow Drive technology: Keeps you in control even when the autopilot is engaged; it disengages if you steer and re-engages when you return to the commanded course.
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Minimal commissioning: Quick setup so you can focus on the voyage rather than calibration.
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Versatile sailing and powerboat capabilities: Supports heading hold, wind hold, tack/jibe, step turns, trolling sequences, and more.
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Hydraulically steered compatibility: Ideal for hydraulically steered powerboats (inboards, outboards, stern drives, diesels) and sailboats alike.
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High responsiveness: Engineered to deliver precise, effortless steering and maintain course through waves, wind, and spray.
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Easy Garmin ecosystem integration: Pair with a compatible Garmin networked chartplotter to control Reactor 40 remotely and access Auto Guidance when used with BlueChart g2 Vision charts (sold separately).
With Reactor 40, you gain steady, accurate steering that reduces unnecessary rudder activity and fuel use, while offering the security of Shadow Drive and the convenience of Garmin’s ecosystem. It’s a robust, responsive autopilot corepack built for both sail and power, ready to enhance your day on the water with reliable hands-free navigation when you want it and seamless manual control when you don’t.
