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The Garmin Reactor™ 40 Steer-by-wire Standard Corepack with GHC™ 50 Autopilot Instrument (MPN: 010-02794-03) is an advanced, fully electronic heading-control solution designed specifically for vessels equipped with modern steer-by-wire system architectures. Built around a solid-state 9-axis Attitude Heading Reference System (AHRS), the Reactor 40 Course Computer Unit (CCU) delivers precise course hold, heading stability, and minimal power draw by dynamically adapting to sea conditions, vessel roll, and pitch. The corepack pairs directly with electronic helm controls and features the GHC™ 50 autopilot display, a high-resolution 5-inch glass touchscreen that provides clear system telemetry and intuitive control. With seamless integration into Garmin chartplotters and NMEA 2000® networks, the system supports sophisticated navigation functions including Auto Guidance+™, route tracking, and step turns, delivering smooth, responsive electronic steering without requiring external hydraulic pump setups.
| Feature / Parameter | Specification |
| Physical Dimensions (W x H x D) | 5.5″ x 4.1″ x 2.0″ (140 x 105 x 51 mm) |
| Display Size & Type | 5.0″ diagonal, WVGA color LCD touchscreen |
| Display Resolution | 800 x 480 pixels |
| Weight | 11.57 oz (328 g) |
| Water Rating | IPX7 (waterproof up to 1m depth for 30 min) |
| Mounting Options | Flush, Flat, or Bracket mount |
| Supply Voltage Range | 9V to 32V DC |
| Current Draw | 220 mA at 12 VDC (typical) / 400 mA at 12 VDC (max) |
| Network Interfaces | 1x NMEA 2000® port, 1x Garmin Marine Network (Ethernet) port |
| Wireless Connectivity | ANT+® and local Wi-Fi® |
| Feature / Parameter | Specification |
| Physical Dimensions | 3 19/32″ diameter (91.4 mm) |
| Weight | 5.6 oz (159 g) |
| Sensor Type | Solid-state 9-axis AHRS (Attitude Heading Reference System) |
| Case Material | Fully gasketed, high-impact plastic |
| Water Rating | IEC 60529 IPX7 |
| Operating Temperature | -15°C to 55°C (5°F to 131°F) |
| NMEA 2000 Supply Voltage | 9V to 16V DC |
| NMEA 2000 LEN | 3 (150 mA) |
| Steering System Interface | Direct CAN bus / digital steering protocol integration (Optimus, Yamaha Helm Master, Volvo IPS, etc.) |
| Parameter | Specification |
| Buzzer Dimensions | 29/32″ x 1″ (23 x 25 mm) |
| Buzzer Weight | 2.4 oz (68 g) |
| Buzzer Cable Length | 10 ft (3.0 m) |
| Networking Infrastructure | NMEA 2000® drop cables, T-connectors, and male/female terminators included |
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