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Raymarine Type 1 Linear Drive – 12V
The Raymarine Type 1 Linear Drive delivers reliable automated steering for US coastal cruisers, featuring a compact electromechanical design for sailing vessels up to 24,000 pounds displacement.
- Drive Design: Electromechanical Linear Ram Actuator
- Thrust Force: 650lb Maximum Peak Thrust
- Weight Capacity: 24,000lb Max Displacement Limit
- Power Supply: 12V DC Input Power
- Travel Length: 12-Inch Mechanical Stroke Travel
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Description
Mechanical Thrust and Actuator Analysis
Manual steering fatigue and imprecise rudder tracking often compromise navigation safety on medium displacement sailboats. The Raymarine Type 1 Linear Drive provides 650 pounds of thrust with a 12 inch stroke length. This drive ensures stable autopilot heading by bypassing the primary steering cables.
The unit integrates with 12V ACU-200 processors via a dedicated high current clutch circuit for manual override. Internal hydraulic components are housed in a self contained assembly to minimize external hose routing. Cast metal housing provides protection against the mechanical stresses of long duration maritime transits.
Strategic Vessel Application
Designed for sailing vessels up to 24000 pounds displacement requiring a direct to rudder linear actuator.
Technical Key Features
- Linear drive delivers 650 pounds of thrust
- 12 inch stroke supports standard rudder travel
- Supports vessels up to 24000 pounds displacement
- 12V DC motor draws 2 amps average
- Internal clutch enables immediate manual helm override
- Cast metal housing protects internal gear assembly
- Precision piston travel maintains 0.1 degree accuracy
RAYMARINE Type 1 Linear Drive - 12V Specifications
| Drive Type | Electromechanical Linear Actuator |
| Pump/Ram Capacity | Standard Mechanical Drive |
| Flow Rate / Speed | 10 Seconds (Full Stroke) |
| Max Pressure | 650 lbs (295 kg) Peak Thrust |
| Cylinder Compatibility | Sailboats up to 24,000 lbs (11,000 kg) |
| Operating Voltage | 12V DC System |
| Peak Current Draw | 15 Amps (Peak Load) |
| Average Power Draw | 2A - 5A Typical Cruising |
| Motor Type | High-Efficiency Permanent Magnet DC |
| Computer Compatibility | ACU-200 / NAC-2 / AC12 |
| Port Size / Thread | Hard-Wired Connector Block |
| Drive Connection | Quadrant / Tiller Arm Bolt |
| Rotation/Stroke Direction | Reciprocating Linear Motion |
| Mounting Type | L-Bracket / Bulkhead Foot Mount |
| Housing Material | Hard Anodized Alloy / Steel Rod |
| Waterproof Rating | IPX6 Splash Resistant |
| Operating Temperature | Standard Marine Environment |
| Length (Overall) | 12.0" (300 mm) Stroke Length |
| Width/Diameter | Compact Drive Profile |
| Weight | 8.5 kg (18.7 lbs) |
| Included Accessories | Installation Bolts, Clevis Pin |
| Key Mechanical Feature | Internal powerful electric motor clutch |
Raymarine Type 1 Linear Drive Technical Guide
The Raymarine Type 1 Linear Drive is designed for sailing vessels with a maximum displacement of up to 24,000 lbs (11,000 kg). It is a 12V mechanical actuator with a 12-inch (300mm) stroke. It is the industry standard for coastal cruisers and mid-sized yachts looking for a reliable below-deck autopilot solution.
The Type 1 drive is perfectly paired with the Raymarine ACU-200. It draws less current than the Type 2 series, making this combination a very efficient and cost-effective setup for 12V sailing yachts. It can also be controlled by older Raymarine computers like the SPX-10 or S1, provided they can supply the required clutch current.
The drive unit is typically mounted to a sturdy horizontal shelf or bulkhead near the rudder post. The piston rod connects to a dedicated tiller arm or the existing rudder quadrant using a heavy-duty bolt. Proper alignment is critical; the drive must be at a 90-degree angle to the rudder arm when the rudder is centered to prevent side-loading.
The drive itself does not include a sensor. However, it is highly recommended to use a Raymarine Linear Rudder Reference unit alongside this drive. This provides the ACU with exact rudder position data, resulting in significantly more precise steering and better fuel efficiency during long passages.
Mechanical linear drives are preferred by many sailors because they have fewer points of failure (no hoses or seals to leak) and are generally quieter than hydraulic pumps. They also provide a direct mechanical connection to the rudder, which offers excellent reliability for long-distance cruising where self-sufficiency is paramount.
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