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Garmin Reactor 40 Mechanical/Retrofit/Solenoid Autopilot

Garmin Reactor 40 Mechanical/Retrofit/Solenoid Autopilot
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This Reactor 40 Mechanical/Retrofit/Solenoid autopilot corepack includes motorboat and sailing boat features such as heading hold, wind hold, tack/jibe, step turns and more.
NZ $3,199.00

The Reactor 40 mechanical/retrofit/solenoid autopilot corepack is ideal for sailing yachts and motorboats with direct or cable-actuated steering systems¹. This Reactor 40 below-deck autopilot system gives you that “extra set of hands” needed so you can safely manage your sails, lines, winches and radios, without worry. 

¹Compatible Garmin chartplotter required

Garmin Reactor 40 Mechanical Autopilot Features


Solid-state 9-axis AHRS

With its advanced solid-state 9-axis Attitude Heading Reference System (AHRS), you can mount Reactor 40 nearly anywhere, in any orientation. This new system also helps minimise  rudder movement, heading error, course deviation and power consumption.

Reacts to Conditions

The Reactor 40 autopilot actually reacts to the sea to hold your course even when the boat is pitching and rolling.

Shadow Drive Technology

The Reactor 40 autopilot features patented Shadow Drive technology. The Shadow Drive system automatically disengages the autopilot if the helm is turned, giving you the freedom to manoeuver the boat. The autopilot automatically re-engages when you hold a steady course.

Three Class Drives

Reactor 40 is available with three linear drives (sold separately) capable of driving many different steering systems on most midsize to large vessels (depending on the particular installation). All Garmin linear drives include built-in rudder feedback sensing.

  • Class A Drive Unit — up to 28,500 lbs of displacement
  • Class B Compact Drive Unit — up to 48,400 lbs of displacement
  • Class B Drive Unit — up to 79,000 lbs of displacement

Garmin Reactor 40 Mechanical Autopilot Specifications

CCU dimensions (WxHxD) 4.3 " x 4.4 " x 1.9 " (10.9 x 11.2 x 4.8 cm)
ECU dimensions 6.6 " x 4.6 " x 2.1 " (16.8 x 11.7 x 5.3 cm)
Supply voltage 10V to 30V
Operating temperature -15° C to 60 C° (5° F to 140° F)
Maximum sustained motor current 15A
Maximum instantaneous motor current 40A
Maximum clutch current 2.5A (for drives requiring higher current than 2.5A, a relay needs to be added to the clutch circuit)

Buzzer/Alarm Specifications

Dimensions (L × Diameter) 29/32 in. × 1 in. (23 mm × 25 mm)
Weight 2.4 oz. (68 g)
Temperature range from 5°F to 131°F (from -15°C to 55°C)
Cable length 10 ft. (3.0 m)

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