Meet the Garmin Reactor 40 Corepack No Control No Drive — a hydraulic autopilot corepack engineered for exceptional 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 while delivering a smoother, more confident ride. With minimal commissioning, you’ll be on the water faster and enjoying accurate steering right away.
Precision steering with Shadow Drive technology
Garmin’s patented Shadow Drive technology keeps you in control, even when the autopilot is engaged. The system automatically disengages if you steer, and re-engages when you return to the commanded course, giving you security and freedom to maneuver as needed.
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Advanced 9-axis AHRS: solid-state attitude, heading, and reference data mounted nearly anywhere for reliable performance in any orientation.
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Minimal commissioning: quick setup so you can focus on the voyage, not the 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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Easy integration with Garmin ecosystem: 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).
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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 be the most responsive autopilot in the Garmin Reactor series, delivering precise, effortless steering even in challenging conditions.
With its robust design and intelligent features, Reactor 40 holds your course through waves, wind, and spray, letting you enjoy a calmer, more predictable ride while maintaining full control when you need it.
Note: This Corepack is provided without a control head or drive unit. It is designed to be integrated with your existing helm and steering drive system.
