Take command on every voyage with the Garmin Reactor 40 Autopilot Corepack for Yamaha Helm Master Without GHC. This steer-by-wire autopilot is designed for both powerboats and sailboats, delivering precise course control and seamless integration with Yamaha Helm Master systems that lack GHC.
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Corepack configuration: Steer-by-wire Corepack designed specifically for Yamaha Helm Master (No GHC).
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Platform compatibility: Suitable for powerboats and sailboats; integrates with Yamaha Helm Master systems lacking GHC AHRS technology.
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AHRS technology: Solid-state 9-axis AHRS enables flexible mounting and reliable attitude reference, reducing heading error and course deviation while conserving power.
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Steering modes: Heading hold, wind hold, tack/jibe, and step turns, plus preprogrammed trolling and search procedures for versatile control on both power and sail vessels.
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Remote steering: Remote control via Garmin network—monitor and steer Reactor 40 from anywhere on the boat with a compatible chartplotter.
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Auto Guidance (optional): GPS-path steering with BlueChart g2 Vision charts (sold separately) for planning routes; note Auto Guidance is for planning purposes and does not replace safe navigation.
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Durability: Marine-ready design with a fully gasketed, high-impact enclosure and IPX7 waterproofing for demanding marine conditions.
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Power & connectivity: Powered by NMEA 2000 bus (9–16 VDC); CCU cable length 9.5 ft; NMEA 2000 output with additional NMEA 0183 compatibility via compatible displays.
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GHC 20 compatibility: Display/controller specs available for reference (not included with the “Without GHC” configuration).
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Dimensions: CCU diameter 3 19/32 in. (91.4 mm).
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Model: 010-00705-91 (Reactor 40 Autopilot Corepack for Yamaha Helm Master Without GHC).
With Reactor 40, enjoy precise course control that responds to sea state, fast setup to get you on the water quickly, and a scalable Garmin network-ready solution that grows with your chartplotter ecosystem. The robust enclosure and IPX7 protection ensure reliable performance in challenging marine conditions, while versatile steering modes and optional Auto Guidance expand your navigation capabilities—ideal for both power and sail vessels seeking confident, modern piloting.
| 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) |
