The Raymarine Rotary Drive Type 2 (12V) (M81136) is a heavy-duty autopilot drive designed for vessels with chain and sprocket steering systems, such as many sailing yachts. This electric motor connects to your steering via a drive chain to provide powerful and precise helm control.

High-Power Performance for Large Yachts

The Type 2 drive is engineered for larger vessels that require significant torque to handle the rudder under heavy sea conditions. It features a reversing electric motor and an internal electromagnetic clutch that completely disengages the drive when the autopilot is off, allowing for smooth manual steering without extra drag.

• Vessel Capacity: Specifically built for large sailing vessels with a maximum displacement of up to 44,000 lbs (20,000 kg).

• Chain and Sprocket Integration: Works by driving a chain that connects to your existing steering quadrant or pedestal.

• Precision Steering: Delivers high torque and fast response times, ensuring the boat stays on course even in following seas or high winds.

• Evolution System Compatibility: This drive is designed to be powered and controlled by the Raymarine ACU-400 Actuator Control Unit.

Technical Specifications

• Part Number: M81136

• Voltage: 12V DC

• Peak Output Torque: 34 Nm (300 lb.in.)

• Maximum Shaft Speed: 33 rpm

• Power Consumption: Typically 60–120 Watts

• Clutch Power: 12 Watts

Final Summary

The Raymarine Type 2 Rotary Drive is the standard choice for large cruisers and offshore sailing yachts where a reliable, high-torque mechanical drive is required. Because it is a powerful unit, it requires the ACU-400 for proper power management and performance.

If you are looking to complete your autopilot system, I can find the Raymarine EV-1 Sensor Core or the Evolution ACU-400 Control Unit. Would you like me to look into those for you?