V20
Product descripton: V20 by OceanAlpha
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.
Technical specifications
Core Application Scenarios
- Subsea Topographic & Geological Surveying
- Submarine Pipeline & Cable Infrastructure Inspection
- Offshore Wind Farm Operations & Maintenance
- Marine Environmental & Hydrographic Monitoring
Core Features
Dual Power System for Versatile Operations
The V20 USV features a dual power architecture:
- High-speed mode (250 HP diesel, 10 knots)
- Dynamic positioning mode (diesel generator + battery, driving azimuth and bow thrusters)
Redundant design ensures safe operation even if one system fails, while a 5,000 L 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.
Key performance characteristics include:
- Turning diameter: 35 m at 10 knots
- Vector propulsion for precise low-speed control
- Marine-grade 5083-H116 aluminum construction
- Six watertight compartments
It operates in up to Sea State 5 and withstands Beaufort Force 6–7 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 control
- Autonomous control
- Local emergency control
Intelligent functions include:
- Waypoint following
- Station keeping
- Dynamic positioning
- Target tracking
The COLREGs-compliant collision avoidance system fuses:
- Radar
- AIS
- LiDAR
- Cameras
This enables 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:
- Stern ROV LARS (up to 300 m)
- Central moonpool with electric auto lifter for two acoustic sensors
- Two removable towing systems for side scan sonar and magnetometer
With 1,500 kg deck payload and universal interfaces including RS232/485, Ethernet, and CAN, all equipment can be swapped at the dock without lifting the vessel for quick mission reconfiguration.
Technical Specifications
| Category | Specification | Value |
|---|---|---|
| Physical | Hull Type | Monohull |
| Material | Aluminum alloy | |
| Length Overall (LOA) | 14.8 m | |
| Breadth Overall (BOA) | 3.2 m | |
| Moulded Depth | 1.5 m | |
| Total Height | 2.8 m | |
| Draught | 0.8 m | |
| Light Displacement | 16 t | |
| Payload Capacity | ≥ 1,500 kg (Deck Machinery and Payloads) | |
| Fuel Tank Capacity | 5,000 L | |
| Performance | Service Speed | 6 kn |
| Maximum Speed | 10 kn | |
| Endurance | 30 days | |
| Operation Sea State | Sea State 4 | |
| Survival Sea State | Sea State 5 | |
| Dynamic Positioning | DP1 (Equivalent Dynamic Positioning) | |
| Power & Propulsion | Power Setup | Hybrid Diesel-Electric Propulsion System |
| Main Engine | 184 kW | |
| Bow Thruster | 1 × 20 kW | |
| Azimuth Thrusters | 2 × 40 kW | |
| Control & Communication | Remote Control | 1 km (2.4 GHz) |
| Public Cellular | 4G / 5G (Coverage-dependent) | |
| Private Network | 15 km (1.4 GHz) | |
| Satellite Communication | Starlink (2 Sets) | |
| Classification | Classification | DNV, BV, CCS and others (Optional) |