V20
Multi-Purpose Offshore USV for Subsea Inspection & Marine Geophysical Surveys
V20 USV At A Glance
The OceanAlpha V20 is a 15-meter class all-in-one integrated offshore unmanned surface vessel, purpose-built for fully unmanned subsea inspection and marine survey operations. It features industry-leading 30-day unattended endurance, Sea State 4 ROV launch and recovery capability, and flexible modular payload design that delivers unmatched efficiency, safety and sustainability for offshore wind farm O&M, hydrographic and geophysical surveys, and offshore oil & gas subsea infrastructure inspection applications.
Core Application Scenarios
Subsea Topographic & Geological Surveying
Submarine Pipeline & Cable Infrastructure Inspection
Offshore Wind Farm Operations & Maintenance
Marine Environmental & Hydrographic Monitoring
V20 Core Features
Dual Power System for Versatile Operations
The V20 USV features an innovative dual power architecture, optimized for both high-speed transit and precision low-speed operations:
High-speed transit mode, 250HP (184kW) diesel engine with propeller and rudder, delivering a maximum speed of 10 knots; Dynamic positioning mode: Diesel-electric range extender system (100kW + 50kW generators + 100kWh battery) powering two 40kW azimuth thrusters and one 20kW bow thruster. This redundant power design ensures safe return and continued operation even if one power system fails.Also endurance can reach up to 30 days of continuous operation with a 5,000L diesel fuel tank.
Superior Seakeeping and Stability
The V20 is engineered for challenging marine environments, it delivers great stability and maneuverability at the same time. Its monohull design is optimized via CFD hydrodynamic simulation for less resistance and better seakeeping. stability, which delivers 15%–20% lower roll amplitude compared to catamarans in 3–4 sea states, and 35m turning diameter at 10 knots, with vector propulsion for precise low-speed control.
The Robust construction comes from Marine-grade 5083-H116 aluminum alloy hull with 6 watertight compartments, therefore it can operates in up to sea state 5 and withstands 6–7 Beaufort winds.
Advanced Autonomous Control System
Built on OceanAlpha’s battle-proven USV6.3 control platform with over 600 vessels deployed worldwide, the V20 features a dual-redundant hardware and software architecture that delivers millisecond-level failover for uninterrupted mission execution. The system supports three seamless control modes — remote control, fully autonomous navigation, and local emergency driving — and offers a comprehensive suite of intelligent navigation functions including precision waypoint following, station keeping, dynamic positioning, and dynamic target tracking. Its COLREGs-compliant collision avoidance system fuses data from navigation radar, AIS, LiDAR, and visual cameras to detect and avoid obstacles in real time, while the integrated health monitoring system provides continuous self-diagnosis and multi-level alarm notifications for all onboard systems.
Modular Payload Integration Architecture
Designed as a universal marine survey platform, the V20 features a highly modular payload architecture that supports rapid integration of a wide range of scientific and survey equipment without requiring vessel modification. It offers multiple deployment options including a stern ROV launch and recovery system (LARS) for underwater robots up to 300 meters depth, a central moonpool with two electric lifting mechanisms for acoustic sensors, and two removable towed systems for side-scan sonar and magnetometers. With a generous 1,500kg deck payload capacity and universal interfaces supporting RS232/485, Ethernet, and CAN bus protocols, all equipment can be swapped at the dock without lifting the vessel, enabling quick reconfiguration between different mission types.
