Spotter Scout Technical Specs | Sofar Ocean
Spotter Scout Technical Specs
Complete technical specifications for Spotter Scout, an uncrewed surface vehicle developed in partnership with Online Oceans. Review vessel, power, sensing, navigation, and maintenance specs.
Technical Specifications
VESSEL
- Length: 2.5 m
- Beam: 0.8 m
- Draft: 0.6 m
- Weight: ~80 kg
- Cruise Speed: 3 knots
- Endurance: 6+ months
- Battery-Only Range: 200 nm
- Hull Construction: Rotomolded plastic
POWER
- Solar Array: 340 W
- Battery Capacity: 2 kWh lithium-ion
- Battery Certification: UN 38.3
- Battery Location: Keel-mounted, fully submerged
SURVIVABILITY
- Operational Sea State: Sea State 7–8
- Survivable Sea State: Sea State 9
- Self-Righting: Yes (1–2° inverted stability angle)
- Moving Parts: 2 (thruster + rudder servo)
- Hull Type: Flooded (no sealed air volume)
NAVIGATION & CONTROL
- Station Keeping Radius: 50 m – 10+ km (configurable)
- Waypoint Navigation: Multi-point with configurable loiter times
- Collision Avoidance: AIS-based, configurable radius
- Fleet Capacity: 50+ units per operator
- Command & Control: Browser-based (desktop and mobile)
SENSING
- Wave Frequency Range: 0.03 – 0.8 Hz (30s – 1.25s)
- Wave Direction Range: 0 – 360°
- Wave Displacement Accuracy: Approximately ± 2cm
- Sampling Rate: 2.5 Hz
- Wind: Speed and direction (derived)
- Barometer Accuracy: ±0.5 mbar at 25°C
- Barometer Range: 700 – 1100 mbar
- Camera: HD 1080p, time-lapse and live stream via Starlink
PAYLOAD
- Payload Capacity: 30 kg / 300L
- Payload Voltage: 5 - 24 V
- Payload Mounting: Surface, subsurface, or towed
- Subsurface Depth: ~1 m (keel-mounted)
- Bristlemouth: 1 compatible payload per vehicle
COMMUNICATIONS
- Primary Telemetry: Iridium (configurable intervals)
- High-Bandwidth: Starlink (on demand)
- Backup: Spotter Iridium SBD (independent)
- AIS: Receiver standard; Class B transceiver optional
MAINTENANCE
- Service Interval: 6 months
- Service Items: Thruster bearings, rudder servo, antifoul
- Battery Lifespan: ~2 years (condition-monitored)
- Shipping: Sea freight (UN 38.3 lithium battery)
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