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 a dual power architecture: high-speed mode (250HP diesel, 10 knots) and dynamic positioning mode (diesel generator + battery, driving azimuth and bow thrusters). Redundant design ensures safe operation even if one system fails, while a 5,000L fuel tank enables up to 30 days of continuous operation.
Superior Seakeeping and Stability
The V20 delivers stability and maneuverability in rough seas. Its CFD-optimized monohull reduces roll amplitude by 15–20% vs. catamarans in sea states 3–4. Turning diameter: 35m at 10 knots, with vector propulsion for precise low-speed control. Built with marine-grade 5083-H116 aluminum and 6 watertight compartments, it operates in up to sea state 5 and withstands 6–7 Beaufort winds.
Advanced Autonomous Control System
Built on OceanAlpha’s proven USV6.3 platform (600+ vessels deployed), the V20 features dual-redundant hardware/software with millisecond failover. It supports remote, autonomous, and local emergency control modes, plus intelligent functions like waypoint following, station keeping, dynamic positioning, and target tracking. The COLREGs-compliant collision avoidance system fuses radar, AIS, LiDAR, and cameras for real-time obstacle detection, while integrated health monitoring provides continuous self-diagnosis and multi-level alerts.
Modular Payload Integration Architecture
The V20 is a universal survey platform with a modular payload architecture supporting rapid integration of equipment without vessel modification. It includes a stern ROV LARS (up to 300m), a central moonpool with electric auto lifter for two acoustic sensors, and two removable towing systems for side scan sonar & magnetometer. With 1,500kg deck payload and universal interfaces (RS232/485, Ethernet, CAN), all equipment can be swapped at the dock without lifting the vessel for quick mission reconfiguration.
