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Raymarine Autopilot Guide: Evolution Series, Components & Drive Selection

By MAURIPRO Sailing Specialists · Updated July 2026

A reliable Raymarine autopilot can transform your time at the helm—automatically holding course even in challenging conditions so you conserve energy and steer hands-free. The short answer on choosing one: match a Raymarine Evolution™ system’s drive unit to your boat’s fully-loaded displacement and steering type, then add the EV-1 sensor core, an ACU and a control head to complete the system.

Here is how a Raymarine Evolution autopilot is put together and how to size it correctly.

Why Choose a Raymarine Autopilot?

  • Advanced Evolution™ AI: adaptive steering algorithms learn your boat’s handling for accurate course-keeping.
  • Robust sensor suite: the EV-1 sensor core fuses 9-axis motion data to hold heading in rough seas.
  • Seamless integration: connects to Axiom® chartplotters and NMEA 2000 networks.
  • Energy efficiency: intelligent drive control minimises power draw—ideal for sailboats on long passages.

Key Components of a Raymarine Autopilot System

A complete Raymarine Evolution autopilot typically includes:

  • EV-1 Sensor Core: detects pitch, roll, yaw and heading changes.
  • ACU (Actuator Control Unit): powers and commands the drive unit.
  • Drive Unit: hydraulic, mechanical or tiller—selected to match your steering type and displacement.
  • Control Head: p70s or p70Rs for intuitive push-button or rotary control.

Selecting the Right Drive Unit

Choosing the correct drive is crucial for performance and longevity. Match your boat’s fully-loaded displacement and steering type to Raymarine’s drive-size recommendations:

Drive Type Suited Boat Displacement (fully loaded)
Type 1 Hydraulic Up to 22,000 lb (10,000 kg)
Type 2 Linear Mechanical 22,000 – 33,000 lb (10,000 – 15,000 kg)
Type 1 Rotary Cable or chain steering on lighter vessels

If your boat sits near a boundary, size up to the stronger drive—an under-powered drive will struggle in heavy weather.

Installation, Calibration & Maintenance

Installation: mount the EV-1 on the vessel’s centerline away from magnetic interference, use marine-grade cabling and waterproof connectors, and secure the drive to solid structure to prevent flexing.

Calibration: run the Dockside Wizard to set rudder limits and drive type, then do a slow-speed circle to auto-calibrate heading. Fine-tune response levels (1–9) to balance course-keeping against power draw.

Maintenance: check hydraulic fluid each season (hydraulic drives), grease mechanical/linear fittings annually, keep software updated, and inspect cable glands after heavy weather.

Troubleshooting Common Issues

Symptom Possible Cause Solution
Course wander High response setting Reduce response level
Drive stalls Low battery voltage Check charging system
No rudder feedback Faulty rudder reference Inspect / replace sensor

Where to Buy a Raymarine Autopilot

MAURIPRO carries Raymarine Evolution autopilots and components—sensor cores, ACUs, drive units and p70s/p70Rs control heads. Not sure which drive matches your boat? Send us your displacement and steering type and we’ll confirm the right system.

Frequently Asked Questions

How do I choose the right Raymarine autopilot drive unit?

Match the drive to your boat's fully-loaded displacement and steering type. As a guide: Type 1 Hydraulic suits boats up to 22,000 lb (10,000 kg), Type 2 Linear Mechanical suits 22,000–33,000 lb (10,000–15,000 kg), and Type 1 Rotary suits cable or chain steering on lighter vessels. If you are near a boundary, size up.

What components make up a Raymarine Evolution autopilot?

A complete system includes the EV-1 sensor core (detects pitch, roll, yaw and heading), an ACU (actuator control unit) that powers the drive, a drive unit matched to your steering type, and a control head such as the p70s or p70Rs.

Does a Raymarine autopilot integrate with chartplotters?

Yes. Raymarine Evolution autopilots connect to Axiom® chartplotters and NMEA 2000 networks, allowing shared heading data, waypoint tracking and control from compatible displays.

Where should the EV-1 sensor core be mounted?

Mount the EV-1 on the vessel's centerline, away from magnetic interference. Use marine-grade cabling and waterproof connectors, and run the Dockside Wizard plus a slow-speed calibration circle before sea trials.

How do I maintain a Raymarine autopilot?

Inspect hydraulic fluid levels each season on hydraulic drives, grease mechanical or linear drive fittings annually, keep the software updated via Axiom or a laptop, and check cable glands and seals for moisture after heavy weather.

Questions? We're Here to Help

Have questions? Chat with us! Our MAURIPRO rigging and sailing specialists are available to help you find the right solution for your boat and sailing style.

Explore our selection: Raymarine EV-100 Power Evolution Complete Autosystem Pilot (T70154) and related sailing gear at MAURIPRO.

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