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Uncrewed vessel · Undersea

SG-1 Fathom

Helsing mass-producible underwater glider for sensor constellations.

by Helsing · Unveiled May 13, 2025

DevelopmentUncrewed vesselUnderseaUnveiledMay 13, 2025
Helsing SG-1 Fathom underwater glider on display at the Plymouth Resilience Factory

Photo: Helsing · Editorial use (company media kit) · Unaltered publisher-served JPEG, with Helsing credit. No crop, reencoding, or retouching.

Mass-producible underwater glider powered by Helsing's Lura software, intended to form large surveillance constellations of sensors beneath the sea.

Timeline1

  1. UnveiledReported

    SG-1 Fathom unveiled

    Helsing unveiled Lura and SG-1 Fathom together.

    SourcesNaval News

Solid entries are confirmed, outlined reported, dashed estimated or still to come; dotted italic entries are speculative. Dates show only the precision the sources give.

Sources2

  1. 1.

    Naval News · May 13, 2025 · Supports: System, System milestone

    “Helsing, the leading European defence technology company, today unveils Lura and SG-1 Fathom to digitalise and defend the oceans.”
  2. 2.

    Helsing · Supports: System

    “Mass manufacturable, hundreds of SG-1s can be deployed at scale to monitor vast underwater areas.”

Each fact on this page is attached to the sources that support it. Archived copies are linked when we keep one.