S3 (Swift Sea-Stalker)
Product descripton: S3 (Swift Sea-Stalker) by Swiftships
The Swift Sea-Stalker (S3) is a 6 m Unmanned Surface Vehicle (USV) engineered for high-endurance autonomous operations, asymmetric maritime warfare, and expeditionary missions. Designed around a rugged aluminum frame with an unsinkable, self-scuttling hull, the platform combines long-range performance, modular mission payloads, advanced ISR capabilities, and cyber-hardened autonomy.
Built to support Joint Warfighting Concepts (JWC), the S3 features an open-system architecture, plug-and-play command and control (C2), and full mission autonomy with man-in-the-loop control. Equipped with multi-spectral sensors, beyond-line-of-sight (BLOS) communications, and modular payload integration, the vessel supports intelligence, surveillance, strike, electronic warfare, and one-way attack missions. Its compact size allows both the vessel and trailer to fit inside a standard 20-foot TEU container for rapid deployment worldwide.
The S3 complies with NATO STANAG 4586 and JAUS interoperability standards and is available either as a complete system or as a kit for local assembly.
Technical specifications
Key Features
- Autonomous multi-mission USV for expeditionary maritime operations
- Cyber-hardened architecture
- Remote-controlled or fully autonomous operation (Automation Level 5)
- Open-system architecture with plug-and-play C2 integration
- Optimized low-drag aluminum hull with enhanced stability
- COLREG-compliant autonomous navigation and collision avoidance
- Multi-spectral ISR sensor suite
- Beyond-line-of-sight (BLOS) communications
- Modular payload bay supporting missiles, loitering munitions, EW systems, and weapons
- High-speed diesel propulsion with long-endurance operation
- Remote machinery diagnostics and health monitoring
- Compact platform transportable in a standard 20-foot TEU container
- High-rate robotic manufacturing for rapid fleet production
Primary Mission Profiles
- Intelligence, Surveillance & Reconnaissance (ISR)
- Expeditionary maritime operations
- Asymmetric warfare
- Maritime strike missions
- Electronic warfare
- One-Way Attack (OWA)
- Force protection
- Autonomous maritime patrol
- Coastal security
- Multi-domain operations
Technical Specifications
| Category | Specification | Value |
|---|---|---|
| Dimensions | Length | 19.2 ft (6.0 m) |
| Beam | 6 ft (1.82 m) | |
| Draft | 6.6 ft (1.98 m) | |
| Freeboard | 1.33 ft | |
| Performance | Maximum Speed | 45+ knots |
| Range | 1,000+ NM | |
| Endurance | 30+ hours | |
| Cruising Speed | 35 knots | |
| Range with Refuel | 1,000 NM @ 35 knots cruising speed | |
| Capacity | Fuel Capacity | 400 gal |
| Fuel Type | Diesel Type #2 or JPL | |
| Payload Capacity | Modular, up to 1,250 lb | |
| Weight | 3,160 lb | |
| Power | 16,200 kWh | |
| Machinery | Engine | Yanmar 4LV230 (3,800 RPM) |
| Propulsion | Yanmar Outdrive | |
| Generator | 3 kW (Optional) | |
| Sensors & Electronics | Radar | SIMRAD HALO 24 |
| Navigation System | Vector Navigation VN-300 | |
| AIS | Sitex DA-2 | |
| GPS | TE Connectivity ANT-SH2-SMA | |
| Communications | Starlink BLOS | |
| Camera | FLIR M364C Low-Light HD Night Vision | |
| Antenna | L-COM HG2406DPU | |
| Antenna | Shakespeare 5912 | |
| Payload Options | Payload | Modular payload up to 1,250 lb |
| Missile | JAGM / JAGM-MR | |
| Loitering Munition | Switchblade 300 / 600 | |
| Electronic Warfare | TSC GROWLER | |
| Gun | Dillon Mini Auto Gun | |
| Energetics | High explosive payload for One-Way Attack (OWA) missions | |
| Hull & Construction | Hull Material | 5086 Marine Grade Aluminum |
| Watertight Design | Unsinkable | |
| Seakeeping | Sea State | Operate/Survive: Sea State 2–3 |
| Production | Manufacturing | Robotic Manufacturing Capability (15–20 craft/month) |
| Transportability | Transport | Air, Sea, or Land |
| Technology Readiness | TRL | Craft: TRL 9; Technology: TRL 7 |