S3-HP Sea-Stalker
Product descripton: S3-HP Sea-Stalker by Swiftships
The S3-HP (Sea-Stalker) is a 5.16 m High-Performance Unmanned Surface Vessel (sUSV) designed for high-speed littoral operations, autonomous interception, and multi-mission maritime warfare. Developed from the proven S3 platform, it combines exceptional agility, endurance, and survivability with advanced autonomy, modular payload integration, and cyber-hardened architecture.
Designed as a hunter-killer USV, the S3-HP can autonomously search, identify, intercept, and neutralize maritime threats while supporting fleet protection, counter-USV operations, intelligence, surveillance, and reconnaissance (ISR), and electronic warfare. The platform supports both remote and fully autonomous operation with man-in-the-loop control and complies with NATO STANAG 4586 and JAUS interoperability standards.
Featuring a rugged 5086 marine-grade aluminum hull, powerful diesel or gasoline propulsion options with waterjet drive, and a Seakeeper 1 gyro stabilizer, the S3-HP delivers outstanding maneuverability, rapid response, and modular mission flexibility. It is available as either a complete vessel or a kit for local assembly.
Technical specifications
Key Features
- High-performance hunter-killer USV for asymmetric maritime warfare
- Remote-controlled or fully autonomous operation (Automation Level 5)
- Cyber-hardened architecture
- Modular open-system design with plug-and-play C2 integration
- High-speed waterjet propulsion with exceptional maneuverability
- COLREG-compliant autonomous navigation
- Integrated multi-spectral ISR suite
- Supports modular weapons, loitering munitions, torpedoes, and electronic warfare payloads
- Counter-USV interception capability
- Remote machinery diagnostics and health monitoring
- NATO STANAG 4586 and JAUS compliant
- TRL 9 validated platform tested with the U.S. Navy and allied navies
- Air, sea, and land transportable
Primary Mission Profiles
- Counter-USV operations
- Hunter-killer missions
- Fleet protection
- Escort of High Value Units (HVUs)
- Intelligence, Surveillance & Reconnaissance (ISR)
- Littoral security
- Electronic warfare
- Maritime interception
- Autonomous patrol
- High-speed response missions
Technical Specifications
| Category | Specification | Value |
|---|---|---|
| Dimensions | Length | 16.95 ft (5.16 m) |
| Beam | 5.53 ft (1.62 m) | |
| Draft (Full Load) | 1.5 ft (0.45 m) | |
| Depth | 3.2 ft (0.98 m) | |
| Performance | Maximum Speed | 35+ knots |
| Range | 500 NM | |
| Endurance | 4 days at 5 knots | |
| Capacity | Fuel Capacity | 146.2 gal (553.43 L) |
| Payload (Standard) | 350 lb | |
| Variable Payload Capacity | Up to 600 lb | |
| Light Ship Weight | 0.76 LT | |
| Displacement (Full Load) | 1.48 LT | |
| Machinery | Engine Options | Yanmar 4LV250 Diesel Engine or Indmar 310 HP Gasoline Engine |
| Propulsion | Hill Jet HI280 or Thrustmaster DJ100G | |
| Sensors & Electronics | Radar | Furuno DRS4D |
| Navigation System | Hemisphere Vector NAV GNSS | |
| AIS | Site X | |
| EO/IR System | FLIR M364D | |
| Remote Control System | Glendinning | |
| Autonomous System | Sea Machines SM300 | |
| GPS | TE Connectivity ANT-SH2-SMA | |
| Communications | Starlink, Silvus StreamCaster MIMO Radio (LITE 4200) | |
| Camera | FLIR M364C Low-Light HD Night Vision | |
| Antennas | L-COM HG2406DPU, Shakespeare 5912 | |
| Armament | Gun | Dillon Mini Gun (7.62 mm) |
| Torpedo | Twin-Tube LWT Mk 46 | |
| Payload | Variable payload up to 600 lb | |
| Mission Configuration Options | Modular Payload | Configurable modular payload system |
| Optional Equipment | Onboard sensor and communication systems supporting autonomy and situational awareness (Optional/GFE) | |
| Hull & Construction | Hull Material | 5086 Marine Grade Aluminum |
| Watertight Design | Hull cannot sink unless intentionally scuttled | |
| Stability | Outriggers (Port/Starboard) | |
| Seakeeping | Sea State | Operate/Survive: Sea State 2–3 |
| Production | Manufacturing | Rapid Robotic Manufacturing Capability (15–20 craft/month) |
| Transportability | Transport | Air, Sea, or Land |
| Technology Readiness | TRL | Craft: TRL 9; Technology: TRL 7 |