L42
Marine Survey USV with Range-Extended Electric Powertrain
L42 USV: Redefining Offshore Survey with
Endurance and Efficiency
Co-engineered with professional surveyors and refined through years of offshore experience, the L42 Uncrewed Surface Vessel (USV) represents OceanAlpha’s most advanced and versatile marine survey platform to date.
Built for the realities of offshore energy and marine science, it merges endurance, adaptability and precision-empowering users to achieve more, with less risk and environmental impact.
Redundant Hybrid Propulsion — Always on Mission
The L42 redefines resilience with four independent electric outboard motors + two 20 kW diesel generators—a dual-layer system that delivers silent, precise low-speed control and sustained high-power output.
If any motor or generator fails, the remaining units maintain essential navigation and emergency return capabilities, ensuring uninterrupted operations in harsh conditions.
8 Days Endurance, 810nm Range And More
For long-range survey missions, the L42’s optimized energy management and lightweight design enable 8-day operations at 4 knots or a maximum range of 810nm.
This eliminates frequent port stops for refueling/recharging, reducing operational costs and time constraints for large-scale maritime coverage.
Modular Payload & Sensor Compatibility
L42 USV’s modular mission system operates independently from the platform.
Dual moonpools + dual lifters, svp winch, towing system, and other mounting clamps enable easy equipment integration and maintenance.
Advanced Control:
Tailored for USVs, Built to Perform
Developed specifically for USV operations, OceanAlpha’s in-house USV control system eliminates third-party limitations, ensuring faster updates, tailored functionality, and long-term reliability you can trust.
