Garmin Reactor 40 Autopilot for Yamaha Helm Master with GHC50 combines Garmin’s steer-by-wire autopilot corepack with Yamaha Helm Master for precise, reliable steering. Built to endure demanding seas, it integrates with Garmin chartplotters and the GHC50 display to keep you on course with confidence.
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Steer-by-wire corepack for Yamaha Helm Master: specifically designed to integrate with Yamaha Helm Master for seamless control and reliable autopilot performance.
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Solid-state 9-axis AHRS: enables mounting almost anywhere while maintaining accurate heading even when the vessel pitches or rolls.
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Low power consumption: helps maximize battery life and efficiency on long passages.
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Fast, easy commissioning: quick setup so you’ll be on autopilot without lengthy tuning.
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Remote and device control: control from compatible Garmin chartplotters, the Reactor autopilot remote, or select quatix watches (requires chartplotter or GHC 50 instrument).
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Sea-condition response: autopilot reacts to sea conditions to hold your course, providing confidence in rough seas or chop.
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Navigation aids: supports heading hold, step turns, wind hold, and tack/jibe when paired with a wind sensor (sold separately) for seamless sailing or powerboat operation.
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Auto Guidance+ and Follow Route: enhances planning and navigation while keeping safe navigation practices in mind (Auto Guidance is for planning purposes).
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Garmin ecosystem integration: synchronized control and enhanced situational awareness on deck.
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Compatibility and control: designed for Yamaha Helm Master systems; Reactor 40 requires a compatible Garmin chartplotter to unlock full control.
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GHC 50 autopilot instrument: adds intuitive, on-deck visibility to autopilot status and controls.
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Included components: Reactor 40 CCU (Course Computer Unit), GHC 50 helm control display, Yamaha Gateway CCU cable, Buzzer, NMEA 2000 drop cables (2 m), NMEA 2000 power cable, NMEA 2000 T-connectors, Male and female terminators, Documentation.
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Rugged, waterproof construction: fully gasketed, high-impact plastic case with IPX7 waterproofing for reliable operation in harsh marine environments.
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CCU Specifications: Dimensions 3 19/32" diameter (91.4 mm); Weight 5.6 oz (159 g); Temperature range 5°F to 131°F (-15°C to 55°C); Case material fully gasketed, high-impact plastic, IPX7; CCU cable length 9.5 ft (3 m); NMEA 2000 power input 9-16V; NMEA 2000 LEN 3 (150 mA).
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Buzzer/Alarm Specifications: Dimensions (L Diameter) 29/32"–1" (23 mm–25 mm); Weight 2.4 oz (68 g); Temperature range 5°F to 131°F (-15°C to 55°C); Cable length 10 ft (3.0 m).
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Autopilot Gateway Specifications: Dimensions (L Diameter) 5 1/8" × 2 3/8" × 1" (130 mm × 60 mm × 25 mm); Weight less than 1 oz (28 g).
The Reactor 40 Autopilot for Yamaha Helm Master is designed to keep your course through varying conditions, with Auto Guidance+ and Follow Route supporting safer, more efficient journeys. Its tight Garmin ecosystem integration provides synchronized control and clearer situational awareness on deck, so you can focus on the moment rather than steering adjustments.
| CCU Specifications |
| Dimensions |
3 19/32" diameter (91.4 mm) |
| Weight |
5.6 oz (159 g) |
| Temperature range |
From 5°F to 131°F (from -15°C to 55°C) |
| Case material |
Fully gasketed, high-impact plastic, waterproof to IEC 529 IPX7 standards |
| CCU cable length |
9.5 ft (3 m) |
| NMEA 2000 power input |
9-16V |
| NMEA 2000 LEN |
3 (150 Ma) |
| Buzzer/Alarm Specifications |
| Dimensions (L Diameter) |
29/32" 1" (23 mm 25 mm) |
| Weight |
2.4 oz (68 g) |
| Temperature range |
from 5°F to 131°F (from -15°C to 55°C) |
| Cable length |
10 ft (3.0 m) |
| Autopilot Gateway Specifications |
| Dimensions (L Diameter) |
5 1/8" 2 3/8" x 1" (130 mm 60 mm x 25 mm) |
| Weight |
Less than 1 oz (28 g) |
