Drive units
The muscle that moves the rudder. Matched to the steering system and the displacement of the boat.
Choose your drive.
The muscle that moves the rudder. Matched to the steering system and the displacement of the boat.
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Cockpit Tiller Drive
Electric drive for tiller-steered sailing boats up to 6,000 kg displacement.
The Cockpit Tiller Drive is the electric ram that pushes and pulls a tiller on a sailing boat. It sits in the cockpit and attaches to the tiller, so it is an above-decks fit that needs no work on the steering gear. Raymarine rates it for tiller-steered sailing boats up to 6,000 kg (13,000 lb) displacement.
It is the drive in the EV-100 Tiller pack, and is controlled by the ACU-100. Because it is external, it can be removed and stored when you want to hand-steer. For wheel-steered boats the Cockpit Mk II Wheel Drive does the same job at the wheel, and for larger or below-decks installations the rotary, linear and hydraulic drives take over.
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Cockpit Mk II Wheel Drive
Cockpit drive for wheel-steered sailing boats, attached to the wheel spokes.
The Cockpit Mk II Wheel Drive turns the steering wheel for the autopilot on a wheel-steered sailing boat. It fits in the cockpit and attaches to the spokes of the wheel, so no work is needed on the steering gear below decks and it is a straightforward upgrade for an existing boat.
It is the drive in the EV-100 Wheel pack, which Raymarine rates for wheel-steered sailing boats up to 7,500 kg (16,500 lb) fully laden, and it is controlled by the ACU-100. It is for sailing boats rather than powerboats. Tiller-steered boats use the Cockpit Tiller Drive, and boats with below-decks mechanical steering use a linear or rotary drive.
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Type 0.5 Hydraulic Pump
Hydraulic steering of 50 to 110 cc on 12 V systems, for small powerboats.
The Type 0.5 Hydraulic Pump is the smallest autopilot pump for boats with hydraulic steering. It connects into the steering hydraulics and moves the rudder or outboard by pumping fluid. Raymarine rates it for steering cylinders of 50 to 110 cc (3.1 to 6.7 in³) on 12 V systems.
It is the drive in the EV-100 Power pack, for smaller powerboats and especially single outboards, and is controlled by the ACU-100. Size is set by the capacity of your steering cylinder rather than the boat's length, so check that figure first. Larger cylinders need the Type 1, 2 or 3 pumps, each of which covers a higher capacity range.
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Type 1 Hydraulic Pump
Hydraulic steering of 80 to 230 cc, the pump for most mid-size powerboats.
The Type 1 Hydraulic Pump is the mid-range pump for boats with hydraulic steering, rated by Raymarine for steering cylinders of 80 to 230 cc (4.9 to 14.0 in³). It plugs into the steering hydraulics and moves the rudder or outboard by pumping fluid.
It is the drive in the EV-150 Power pack, where it pairs with the ACU-150 control unit, and in the EV-200 Power pack, where the ACU-200 runs it. The deciding figure is the capacity of your steering cylinder, not the weight of the boat. Smaller cylinders of 50 to 110 cc use the Type 0.5, and larger ones use the Type 2 (230 to 350 cc) or Type 3 (350 to 500 cc).
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Type 2 Hydraulic Pump
Hydraulic steering of 230 to 350 cc, for larger powerboats.
The Type 2 Hydraulic Pump is for boats with hydraulic steering where the cylinder is too big for the Type 1. Raymarine rates it for cylinders of 230 to 350 cc (14 to 21 in³). It moves the rudder by pumping fluid through the steering hydraulics.
This size of drive is paired with the ACU-400 control unit, which is made for the bigger Type 2 and Type 3 drives and can deliver up to 30 A of drive current. It is available as the drive for the EV-400 Power pack, which is sold without a drive. Choose by the cylinder capacity printed in your steering documents or measured at the helm pump. Above 350 cc, the Type 3 pump takes over, rated for 350 to 500 cc.
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Type 3 Hydraulic Pump
Hydraulic steering of 350 to 500 cc, for the largest hydraulic installations.
The Type 3 Hydraulic Pump is the biggest autopilot pump in the range, for boats with hydraulic steering cylinders of 350 to 500 cc (21.0 to 30.5 in³). It moves the rudder by pumping fluid through the steering hydraulics.
A pump this size is paired with the ACU-400 control unit, which handles the larger drives and can deliver up to 30 A at 12 or 24 V. It suits the EV-400 Power pack, which is supplied without a drive. As with all hydraulic pumps, the figure that matters is the capacity of the steering cylinder, so confirm that before ordering. Smaller cylinders use the Type 2 (230 to 350 cc), the Type 1 (80 to 230 cc) or the Type 0.5 (50 to 110 cc).
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Type 1 Rotary Drive
Electric rotary drive that turns the rudder stock, for vessels up to 11,000 kg.
The Type 1 Rotary Drive is an electric motor that turns the rudder stock or quadrant directly, which suits boats with mechanical steering. Raymarine rates it for vessels up to 11,000 kg (24,000 lb) displacement.
It is a below-decks installation, normally paired with the ACU-200 control unit, which supports Type 1 mechanical rotary and linear drives as well as Type 1 hydraulic pumps. A rotary drive is the alternative to a linear drive, which pushes and pulls an arm on the quadrant instead of rotating. Which one fits depends on the room around the rudder stock. For larger vessels, the Type 2 Rotary Drive is rated up to 20,000 kg.
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Type 2 Rotary Drive
Electric rotary drive for larger vessels with mechanical steering, up to 20,000 kg.
The Type 2 Rotary Drive is the heavy-duty version of the electric rotary drive, which turns the rudder stock or quadrant directly on a boat with mechanical steering. Raymarine rates it for vessels up to 20,000 kg (44,000 lb) displacement.
Because of its size it is paired with the ACU-400 control unit, which is made for the larger Type 2 and Type 3 drives and can deliver up to 30 A at 12 or 24 V. It is a below-decks installation. The smaller Type 1 Rotary Drive covers vessels up to 11,000 kg, and linear drives are the alternative where there is space for an arm on the quadrant rather than a direct rotary fit.
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Type 1 Linear Drive
Mechanical linear drive for boats up to 11,000 kg, as used in the EV-200 Sail pack.
The Type 1 Linear Drive is an electric ram that pushes and pulls an arm on the rudder quadrant, for boats with mechanical steering. Raymarine rates it for boats up to 11,000 kg (24,000 lb) displacement. It is installed below decks, which keeps the cockpit clear.
It is the drive in the EV-200 Sail pack, a 12 V unit run by the ACU-200 control unit, which Raymarine describes as a powerful, quiet below-decks system. Fitting depends on there being room beside the quadrant for the ram to work. Where there is not, a rotary drive is the alternative, and larger vessels step up to the Type 2 drives.
Drive selection follows the steering type and displacement, not preference. We size it with you.
Commissioned on the water
Dockside setup, then a sea trial to calibrate the compass and tune the steering response. It is signed off working, on the water.
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