Product details

The Reactor 40 autopilot system, in combination with the included linear drive unit, is ideal for boats with a displacement of up to 13 tonnes.

Fast, flexible and reliable
The solid-state 9-axis AHRS (Attitude Heading Reference System) responds reliably to sea conditions to maintain course. In addition, the autopilot system offers particularly helpful features, including heading hold, wind hold, tack/jibe, step turns and more. It also greatly minimises heading error, course deviation, rudder movement and power consumption, giving you enough time to operate sails, lines, winches or radios. The system mounts nearly anywhere, in any orientation.

Including linear drive
This Class A electromechanical linear drive unit works with the GHP Marine Autopilot System to control your sailboat or motorboat's steering system precisely and reliably. The unit is designed for larger sailboats with a displacement of up to 12.927 tonnes (28,500 lbs).

Chartplotter compatibility
Combined with a compatible chartplotter, the Reactor 40 can be controlled and steered anywhere 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. A BlueChart g3 Vision chart (sold separately) gives you additional functions, such as Auto Guidance with automatic route suggestions.

Further features at a glance
  • Minimal commissioning and calibration
  • Control the autopilot with an optional quatix smartwatch
  • NMEA2000 connectivity
  • Delivery includes 4" GHC20 control unit, type 1 linear drive, Reactor 40 (CCU), electronic control unit (ECU) and buzzer/alarm

Garmin Info Center

What does an autopilot system comprise of?
What components does an autopilot system consist of and what are the individual components used for? This Garmin Support video shows you the key components of an autopilot.
Find the right autopilot.
This Garmin Support video shows you which autopilot is the right one for your boat and which components you need for your new autopilot system.

What can the latest autopilots do?
See how to operate an autopilot system and what features the latest technologies offer, explained simply in this Garmin Support video.

Technical data - control course sensor (CCU) / electronic control unit (ECU)
Power supply 10 - 30 V
Max. sustained motor current 15 A
Max. instantaneous motor current 40 A
Max. clutch current 2.5 A
Operating temperature -15 to +60 °C
Dimensions (CCU) 170 x 90 x 50 mm
Dimensions (ECU) 168 x 117 x 53 mm
Dimensions (buzzer) 23 x 25 mm (LxØ)

Technical data - linear drive class A / type 1
Drive unit type: Electromechanical linear
Compatible autopilot system: Garmin Universal GHP autopilot system
Maximum stroke: 303 mm / 12 inch
Peak thrust: 400 kg (800 lbs)
Dimensions (centered): 810(W) x 165(H) x 155(D) mm
Power supply: 10-30 V
Average clutch current @12V: 0.5 A
Average motor current @12V: 1-2 A
Operating temperature: -15 °C to +60 °C

Technical data - Control panel GHC20
Resolution 320 x 240 px
Display type CVQA LCD colour display
Viewing angle 170°
Power supply 9 - 32 V (via NMEA2000)
Max. Power consumption 200 mA
Operating temperature -15 to +70 °C
NMEA0183 Yes
NMEA2000 Yes
Dimensions (WxHxD) 109 x 112 x 48 mm

Delivery contents:
  • Reactor 40 CCU
  • Mechanical linear drive class A / type 1
  • GHC 20 control unit
  • Electronic control unit (ECU)
  • ECU power/connection cable
  • Connection cable
  • Buzzer/alarm
  • NMEA 2000 drop cables (2 meters)
  • NMEA 2000 T-connectors
  • Terminating resistors
  • Quick start guide


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