Garmin Reactor Steer-By-Wire Corepack f/Yamaha Helm Master w/o GHC 20
Garmin Reactor Steer-By-Wire Corepack f/Yamaha Helm Master w/o GHC 20 — Product description
Experience Unmatched Precision on the Water
Imagine cruising across choppy waters or navigating tight channels without constantly adjusting the helm. The Garmin Reactor Steer-By-Wire Corepack integrates seamlessly with Yamaha Helm Master systems, delivering the smoothest, most intuitive autopilot performance available. Designed for boaters who demand reliability and responsiveness, this corepack leverages cutting-edge solid-state technology to keep you on course, even in demanding conditions.
Whether you're a weekend angler trolling for trophy fish or a seasoned sailor plotting long passages, this system adapts to your vessel's unique characteristics. It minimizes unnecessary rudder adjustments, saving power and reducing wear while ensuring a stable ride for everyone aboard.
Advanced Solid-State 9-Axis AHRS: The Heart of Responsive Control
At the core of this autopilot is a compact, solid-state 9-axis Attitude Heading Reference System (AHRS). Unlike traditional gyro-based sensors that demand precise alignment, this AHRS allows flexible mounting almost anywhere on your boat—in any orientation. It continuously monitors pitch, roll, yaw, and acceleration to deliver pinpoint heading accuracy.
- Reduced Errors: Cuts heading drift and course deviation by responding instantly to sea state changes.
- Efficient Operation: Optimizes rudder movement and power draw for longer battery life.
- Smooth Sailing: Absorbs waves and swells, preventing jerky corrections that disrupt your trip.
Boaters report feeling the difference immediately: straighter lines, less fatigue, and more time enjoying the journey rather than fighting the wheel.
Versatile Modes for Powerboats and Sailboats Alike
This corepack packs a punch with features tailored to diverse boating styles. Hold a steady heading through crosswinds, execute precise step turns for docking, or engage wind hold for sailing enthusiasts. Tack and jibe with confidence, knowing the system handles the nuances automatically.
For anglers, preprogrammed patterns simplify trolling and search grids. Pair it with Garmin chartplotters for enhanced capabilities like automated GPS path following—ideal for exploring unfamiliar waters safely.
Quick Setup: Get on the Water Faster
No one likes spending hours calibrating gear when adventure awaits. This corepack streamlines the process with intuitive commissioning that takes minutes, not hours. Connect via NMEA 2000, run a simple sea trial, and you're ready to go. It's engineered for real-world installs, compatible with Yamaha Helm Master (excluding EX models) for plug-and-play reliability.
Full Control from Your Garmin Ecosystem
Link it to your existing Garmin networked chartplotter for remote helm control from anywhere on deck. Access autopilot functions, monitor performance, and even unlock advanced routing—all from a single interface. This integration turns your boat into a smart, connected platform without added complexity.
Complete Kit for Immediate Deployment
- Reactor 40 CCU (Course Computer Unit)
- Yamaha Gateway for seamless communication
- CCU cable (9.5 ft / 3 m)
- Buzzer for alerts
- NMEA 2000 drop cables (2 meters)
- NMEA 2000 power cable
- NMEA 2000 T-connectors
- Male and female terminators
- Comprehensive documentation
Detailed Specifications
| Component | Specification |
|---|---|
| CCU (Course Computer Unit) | |
| Dimensions | 3 19/32 in. diameter (91.4 mm) |
| Temperature Range | 5°F to 131°F (-15°C to 55°C) |
| Case Material | High-impact plastic, IPX7 waterproof |
| CCU Cable Length | 9.5 ft. (3 m) |
| NMEA 2000 Power Input | 9-16V |
| NMEA 2000 LEN | 3 (150 mA) |
| Buzzer/Alarm | |
| Dimensions (LxD) | 29/32 in. x 1 in. (23 mm x 25 mm) |
| Temperature Range | 5°F to 131°F (-15°C to 55°C) |
| Cable Length | 10 ft. (3 m) |
| Autopilot Gateway | |
| Dimensions (LxWxH) | 5 1/8 in. x 2 3/8 in. x 1 in. (130 mm x 60 mm x 25 mm) |
Frequently Asked Questions
Reactor Steer-By-Wire Corepack for Yamaha Helm Master without GHC 20
** Not compatible with Helm Master EX **
The Most Responsive Autopilot System on the Water
- Solid-state 9-axis Attitude Heading Reference System (AHRS)
- Minimizes heading error, course deviation, rudder movement and power consumption while providing a comfortable ride
- Minimal commissioning and calibration
Reactor 40 for steer-by-wire provides robust autopilot capabilities for Yamaha Helm Master systems. With a complete package designed for powerboats and sailboats, Garmin brings an advanced marine technology to the boating public that was once only available for commercial boats. The Reactor 40 autopilot series is simply the most responsive autopilot system we have ever offered.
Reactor 40 autopilots are very versatile. Both powerboat and sailing features are available in all corepacks, including heading hold, wind hold, tack/jibe, step turns and more.
Solid-state 9-axis AHRS
With its advanced solid-state 9-axis AHRS, you can mount Reactor 40 nearly anywhere, in any orientation. In addition, this new system greatly minimizes heading error, course deviation, rudder movement and power consumption while providing a comfortable ride for all on board.
Reacts to Conditions
This amazing autopilot actually reacts to the sea to hold your course. Even when the boat is pitching and rolling, you can remain confident that the Reactor 40 autopilot will keep you on your desired course.
Minimal Commissioning & Calibration
All autopilots require commissioning and calibration all of them. We know you just want to get on the water, so we made this process as fast and easy as possible. That's the power of simple.
Full Integration with Garmin Chartplotters
Combined with a compatible Garmin networked chartplotter, you can have full control of Reactor 40 from wherever you are on the boat. In addition to holding its course in virtually all weather and wind conditions, the system can smoothly perform a variety of preprogrammed trolling and search procedures. Plus, with a compatible Garmin networked chartplotter and BlueChart g2 Vision charts (sold separately), you gain optional features such as Auto Guidance, which automatically steers GPS paths.
1Auto Guidance is for planning purposes only and does not replace safe navigation operations
What's In The Box?
- Reactor 40 CCU (Course Computer Unit)
- Yamaha Gateway
- CCU cable
- Buzzer
- NMEA 2000 drop cables (2 meters)
- NMEA 2000 power cable
- NMEA 2000 T-connectors
- Male and female terminators
- Documentation
Garmin Reactor 40 Steer-by-wire Corepack for Yamaha Helm Master Without GHC Control
Model: 010-00705-91- Solid-state 9-axis Attitude Heading Reference System (AHRS)
- Minimizes heading error, course deviation, rudder movement and power consumption while providing a comfortable ride
- Minimal commissioning and calibration
Reactor 40 for steer-by-wire provides robust autopilot capabilities for Yamaha Helm Master systems. With a complete package designed for powerboats and sailboats, Garmin brings an advanced marine technology to the boating public that was once only available for commercial boats. The Reactor 40 autopilot series is simply the most responsive autopilot system we have ever offered.
Reactor 40 autopilots are very versatile. Both powerboat and sailing features are available in all corepacks, including heading hold, wind hold, tack/jibe, step turns and more.
With its advanced solid-state 9-axis AHRS, you can mount Reactor 40 nearly anywhere, in any orientation. In addition, this new system greatly minimizes heading error, course deviation, rudder movement and power consumption while providing a comfortable ride for all on board.
This amazing autopilot actually reacts to the sea to hold your course. Even when the boat is pitching and rolling, you can remain confident that the Reactor 40 autopilot will keep you on your desired course.
All autopilots require commissioning and calibration — all of them. We know you just want to get on the water, so we made this process as fast and easy as possible. That’s the power of simple.
Combined with a compatible Garmin networked chartplotter, you can have full control of Reactor 40 from wherever you are on the boat. In addition to holding its course in virtually all weather and wind conditions, the system can smoothly perform a variety of preprogrammed trolling and search procedures. Plus, with a compatible Garmin networked chartplotter and BlueChart® g2 Vision® charts (sold separately), you gain optional features such as Auto Guidance , which automatically steers GPS paths.
| CCU Specifications | |
| Dimensions | 3 19/32 in. diameter (91.4 mm) |
| 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 in. 1 in. (23 mm 25 mm) |
| Temperature range | from 5°F to 131°F (from -15°C to 55°C) |
| Cable length | 10 ft. (3.0 m) |
| GHC 20 Specifications | |
| Unit dimensions, WxHxD | 4.3 " x 4.4 " x 1.9 " (10.9 x 11.2 x 4.8 cm) |
| Display resolution, WxH | 320 x 240 pixels |
| Display type | QVGA color LCD display |
| NMEA output | NMEA 0183, NMEA 2000® |
| Supply voltage | Powered by NMEA 2000 bus, 9-16 VDC, units operate up to 32 VDC |
| Operating temperature | -15° C to 70 C° (5° F to 158° F) |
| Max power consumption | 3W |
| Viewing angle | 170° |
| Brightness | 1200 cd/m2 (NIT) |
| Water rating | IPX7 |
| NMEA 2000 LEN (Load Equivalency Number) | 7 (350 mA at 9VDC) |
| Autopilot Gateway Specifications | |
| Dimensions (L Diameter) | 5 1/8" 2 3/8" x 1" (130 mm 60 mm x 25 mm) |
What's in the Box:
- Reactor 40 CCU (Course Computer Unit)
- Yamaha Gateway
- CCU cable
- Buzzer
- NMEA 2000® drop cables (2 meters)
- NMEA 2000 power cable
- NMEA 2000 T-connectors
- Male and female terminators
- Documentation
SKU: NVN-70464
MPN: 010-00705-91
UPC: 753759207984
Technical specifications
| Brand | Garmin |
| Model | Garmin Reactor Steer-By-Wire Corepack f/Yamaha Helm Master w/o GHC 20 |
| SKU / MFR# | 70464 |
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Frequently asked questions
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