The Garmin Reactor™ 40 Steer-by-wire Corepack for Viking® VIPER™ with GHC™ 50 Autopilot Instrument (PN: 010-02794-05) is a premium marine autopilot solution custom-engineered for Viking yachts equipped with the proprietary Viking VIPER (Viking Independent Power Electronic Rudder) steering system. Driven by a solid-state 9-axis Attitude Heading Reference System (AHRS), the unit allows flexible mounting locations and orientations while actively counteracting vessel pitch and roll to minimize course deviations, heading drift, and unnecessary rudder movements. This complete corepack includes the flagship GHC™ 50 helm control display—a vibrant 5-inch WVGA touchscreen with edge-to-edge glass, high-resolution graphics, and an anti-glare finish designed to seamlessly match modern glass-helm multifunction displays. Operating over an NMEA 2000® network, the system provides fast commissioning, effortless parameter sharing across networked Garmin chartplotters, and full access to advanced features such as heading hold, step turns, wind hold, and Auto Guidance+™ route tracking.
In the Box
- Reactor 40 CCU (Course Computer Unit)
- GHC™ 50 helm control display
- CCU cable
- Buzzer
- NMEA 2000® drop cables (2 meters)
- NMEA 2000 power cable
- NMEA 2000 T-connectors
- Male and female terminators
- Documentation


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