Precision power-assist hydraulic steering upgrades for yachts operating out of Ventura Harbor, Channel Islands Harbor, and Santa Barbara deliver smoother handling, lighter helm effort, and safer maneuvering in tight marinas.

Yacht power assist hydraulic steering system
Yacht power assist hydraulic steering system installation by 805 Marine Diesel Mechanic, serving Channel Islands Marina, Ventura Harbor, and Santa Barbara Harbor. For owners running twin inboard diesel yachts, electro-hydraulic steering dramatically reduces helm effort, improves low-speed control, and adds redundancy that traditional mechanical systems can’t match.
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Power Assist Steering – Channel Islands
Power Assisted Steering Systems for Luxury Yachts
Modern power assist hydraulic steering systems are purpose-built for luxury yachts and high-use vessels between 15 and 40 meters. These systems are engineered for rudder torques from roughly 185 HP up to 2,000 HP, making them ideal for larger inboard diesel yachts that see regular coastal trips and Channel Islands runs.
Unlike basic mechanical steering, power assist systems use a compact hydraulic power unit and control valves to reduce wheel effort while preserving direct hydraulic backup. Even in the event of an electrical failure, steering remains possible through the manual hydraulic circuit.
LS Power Assist Steering System Overview
Lecomble & Schmitt (LS) power-assisted steering systems are designed in full compliance with the strictest marine equipment standards. Key benefits include:
- Very smooth, progressive steering feel at the wheel
- Accurate rudder response with fewer turns lock-to-lock
- Intrinsic redundancy — steering remains available during electrical failures
- Configurable for multiple helm stations and autopilot integration
The LS selection catalogue makes it easier for the marine mechanic and design team to specify the correct system based on rudder torque, onboard power supply, and number of steering stations. You can review LS technical documentation here: LS Electro-Hydraulic Steering Catalogues.

Electro-Hydraulic Steering Systems for Yachts
Electro-hydraulic steering combines the feel of traditional hydraulics with the flexibility of electronic control. Lecomble & Schmitt has developed a full range of systems to address the evolving challenges of steering modern boats and yachts. These systems integrate cleanly with inboard diesel propulsion, thrusters, and autopilots on larger platforms such as Pershing, Viking, and custom motor yachts.
For an example of the type of yachts we support, see our work on a high-performance Pershing 7X powered by twin MAN V12-1800 diesels.
Why Upgrade to Power Assist Hydraulic Steering?
Improved Maneuverability in Tight Spaces
In harbors like Ventura, Channel Islands, and Santa Barbara, tight fairways and crosswinds are part of everyday boating. Power assist steering:
- Gives more precise rudder control at low speed and during docking
- Requires much smaller wheel movements to achieve the same turn
- Reduces over-steering and “chasing” during backing and filling
Paired with inboard diesel power and bow or stern thrusters, a well-tuned electro-hydraulic steering system makes large yachts feel smaller and more predictable in close quarters.
Reduced Helm Effort & Operator Fatigue
Long days running between Ventura and the Channel Islands can be tiring with manual steering. Power assist steering units, such as the SeaStar PA1200-2 Power Assist Unit, reduce the physical effort needed at the wheel so the helm stays light and consistent.
- Lower steering effort at all speeds
- Less strain when holding a steady course offshore
- More attentive, less fatigued operator during long crossings
Enhanced Comfort for Owners & Guests
Smoother, more controlled steering means fewer abrupt course changes and less rolling or yawing from over-corrections. This directly improves comfort for everyone on board. When combined with a properly tuned inboard diesel propulsion system, the result is a quieter, calmer ride.
Publications such as BoatUS and Yachting Magazine consistently point to helm ergonomics and steering feel as major contributors to overall onboard comfort and safety.
Key Features of Modern Power Assist Steering Systems
Redundant Hydraulic Backup
- Primary operation via electro-hydraulic power unit for light steering feel
- Automatic fallback to manual hydraulic operation on loss of electrical power
- Maintains steering capability even during partial system failures
Flexible System Integration
- Supports multiple helm stations, flybridge controls, and wing stations
- Compatible with autopilots, electronic engine controls, and engine-driven hydraulic pumps
- Configurable for both single and twin-rudder yachts with inboard diesels
Installation & Service by 805 Marine Diesel Mechanic
At 805 Marine Diesel Mechanic, we design and install complete hydraulic steering packages that match your yacht’s displacement, rudder load, and duty cycle. Our scope typically includes:
- System sizing and component selection (LS, SeaStar, or OEM solutions)
- Hydraulic hose fabrication and routing using marine-rated hose and fittings
- Integration with existing inboard diesel propulsion and helm controls
- Bleeding, testing, and final helm feel adjustments
We also service and troubleshoot existing Hynautic engine control and steering systems, upgrading legacy installations with modern power assist technology where appropriate.
Local Coverage: Ventura, Channel Islands & Santa Barbara
We provide mobile dockside service and full steering system installations at:
- Channel Islands Marina and surrounding Oxnard/Port Hueneme facilities
- Ventura Harbor marinas and yacht clubs
- Santa Barbara Harbor slips and moorings
Whether you are planning a new power assist installation or upgrading an aging hydraulic system, our trained technicians coordinate around your haul-out or in-water availability to minimize downtime.
Final Call to Action
Upgrading to a modern yacht power assist hydraulic steering system transforms your helm from “work” into “control with ease.” Docking becomes more predictable, long passages are less fatiguing, and guests enjoy a smoother, more comfortable ride.
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Yacht Power Assist Hydraulic Steering FAQ
Can my existing hydraulic steering be upgraded to power assist?
In many cases, yes. If your yacht already has a conventional hydraulic steering system, a power assist unit and related controls can often be added without replacing every component. A site inspection by 805 Marine Diesel Mechanic will confirm the best path.
Will I still be able to steer if the electrical system fails?
Yes. Quality power assist systems are designed so that if the electrical supply or power unit fails, you still retain manual hydraulic steering. This redundancy is essential for safety on larger inboard diesel yachts.
Is power assist steering worth it for coastal cruising?
For heavier yachts, twin inboard diesel installations, or owners who run frequently between Ventura and the Channel Islands, power assist steering significantly reduces fatigue and improves control, especially in tight marinas and rough conditions.
How often does a power assist hydraulic steering system need service?
Service intervals depend on hours and environmental conditions, but most systems should be inspected annually. This includes checking fluid condition, hoses, fittings, and verifying proper operation at all helm stations.
Do you install and service systems at Channel Islands, Ventura, and Santa Barbara?
Yes. 805 Marine Diesel Mechanic provides mobile service and full steering installations at Channel Islands Harbor, Ventura Harbor, and Santa Barbara Harbor for inboard diesel yachts.