SG-1 Fathom

SG-1 Fathom is Helsing's autonomous subsurface glider for wide-area underwater surveillance and critical-infrastructure protection. It is designed for mass deployment in constellations, edge detection with Lura and lean launch and recovery from commercial or military vessels.

Facts

  • Company: Helsing
  • Type: Underwater Glider
  • Core: SG-1 Fathom
  • Function: Surveillance
  • Audience: Navies
  • Status: Development
  • Website: https://helsing.ai/lura

Specifications

  • Platform Type: Subsurface glider
  • Mission Roles: Subsurface surveillance and critical-infrastructure protection
  • Coordination Model: Designed to patrol in a swarm or hold position on the seabed
  • Edge AI Integration: Integrated with Lura for real-time detection and classification at the edge
  • Deployment Model: Deployment and recovery from commercial and military vessels by a lean crew
  • Production Model: Planned for mass production in Helsing Resilience Factories

Market context

Navies

  • Peer Group: Underwater Glider, Autonomous underwater vehicle
  • Workflow: Underwater Robotics, Maritime domain awareness, Marine data collection
  • REMUS 620 - HII Unmanned Systems - Autonomous Underwater Vehicle

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Capabilities

persistent underwater surveillance

  • Workflows: Underwater Robotics, Maritime domain awareness, Marine data collection
  • ISR and tactical support - Demonstrated - 2025-05-13 - Use Lura onboard to detect, classify and report underwater acoustic threats. - environment: Naval Base Portsmouth demonstration and intended ocean patrol areas - source: helsing.ai
  • Extended sea endurance - Claimed - 2025-05-13 - Patrol underwater for the manufacturer-rated duration of up to three months. - environment: Naval Base Portsmouth demonstration and intended ocean patrol areas - source: helsing.ai

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Operations

  • Resilience Factory Count - 1 UK Resilience Factory - 2025-11-19 - Plymouth Resilience Factory - maritime autonomy production - Helsing opened its first UK Resilience Factory in Plymouth to build SG-1 Fathom autonomous underwater gliders and Lura acoustic AI systems. - source: helsing.ai

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