Garmin Class B Drive Unit Linear Sailboats to 79,000lbs
Designed for sailboats up to 79,000 pounds, the Garmin Class B Drive Unit delivers linear steering assistance for compatible autopilot systems. Its drive mechanism converts electronic course commands into rudder movement, helping larger sailing vessels maintain heading with reduced manual steering workload.
GARMIN Class B Drive Unit Linear Sailboats Specifications
| Drive Type | Heavy-Duty Hydraulic Linear Drive |
| Pump/Ram Capacity | Integrated High-Pressure Hydraulic System |
| Flow Rate / Speed | 12 Seconds (Full Stroke Span) |
| Max Pressure | 2,230 lbs (1,012 kg) Peak Thrust |
| Cylinder Compatibility | Sailboats up to 79,000 lbs (36,000 kg) |
| Operating Voltage | 12V DC System (12V-24V variants available) |
| Peak Current Draw | 30 Amps Maximum Load |
| Average Power Draw | 6A - 15A Heavy Sailing Use |
| Motor Type | Industrial Grade Reversing DC Pump |
| Computer Compatibility | Reactor 40 Mechanical / ACU-400 / NAC-3 |
| Port Size / Thread | Self-Contained (Sealed No-Hose Design) |
| Drive Connection | Tiller Arm / Quadrant Pin Interface |
| Rotation/Stroke Direction | Linear Push-Pull (300mm Stroke) |
| Mounting Type | Fixed Pivot Foot Bracket (Under Deck) |
| Housing Material | Corrosion-Resistant Cast Iron & Steel |
| Waterproof Rating | IPX6 Marine Protected Unit |
| Operating Temperature | -15°C to +60°C Extreme Performance |
| Length (Overall) | 820 mm Fully Extended |
| Width/Diameter | 165 mm Robust Chassis |
| Weight | 14.0 kg (30.8 lbs) |
| Included Accessories | Mounting Pin, Clevis, Hardware Kit |
| Key Mechanical Feature | Dual solenoid bypass for emergency manual steering |
Common Question of Garmin Class B Drive
What is the Class B Drive Unit?
The Garmin Class B Drive Unit is a linear autopilot drive for compatible sailboats up to 79,000 pounds, according to the listing. Confirm rudder loads, mounting geometry, feedback, control computer, battery, and marine autopilot controller compatibility before installation.
What boats suit this drive?
Sailboats up to 79,000 pounds are the listed application for this Garmin linear drive. Verify rudder type, mechanical linkage, drive mounting, steering loads, power supply, cable gauge, autopilot computer, and calibration requirements before operation.
Does it operate a windlass?
No. The Class B Drive Unit operates compatible sailboat steering and does not handle chain, rope, gypsy, or anchor drums. It is not an anchor windlass component. Use dedicated equipment for marine anchor retrieval.
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