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Sofar Ocean Equipment

Spotter Scout

Solar-powered uncrewed surface vehicle built by Online Oceans carrying Spotter sensing for deep-water station keeping, survey and return-to-home drifting (in beta).

Description

Spotter Scout is an uncrewed, solar-powered surface vehicle built by Online Oceans that carries Sofar's Spotter sensing core. It is currently in beta. Missions are controlled through the browser-based Tether mission control.

Key features

  • Mission modes: deep-water station keeping (50 m to 10+ km radius) without a mooring, return-to-home drifting, subsea-to-satellite gateway for seabed sensors, and spatial survey and gap filling
  • 340 W solar array and 2 kWh lithium-ion battery
  • Magnetic-coupled thruster (no shaft seal) and rudder servo as the only moving parts
  • Flooded, self-righting rotomolded hull
  • Bristlemouth payload bay, HD camera, Iridium and Starlink communications
  • AIS-based collision avoidance

Applications

  • Offshore wind site characterization
  • Metocean monitoring
  • Search and rescue support and oil spill tracking
  • Marine protected area monitoring

Specifications

Length2.5 m
Beam0.8 m
Draft0.6 m
Weight~80 kg
Cruise speed3 knots
Endurance6+ months
Battery-only range200 nm
Hull constructionRotomolded plastic
Solar array340 W
Battery capacity2 kWh lithium-ion
Operational sea stateSea State 7-8
Survivable sea stateSea State 9
Station keeping radius50 m to 10+ km (configurable)
Payload capacity30 kg / 300 L
Payload voltage5-24 V
CommunicationsIridium; Starlink (on demand); Spotter Iridium SBD backup
Service interval6 months

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