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Uncrewed vessel · Sea

Lightfish

Portable autonomous surface vessel for persistent sensing and general-purpose missions.

by Seasats

Uncrewed vesselSeaMilestoneJul 30, 2025
seasats.com
A Seasats Lightfish uncrewed surface vessel underway in the Port of Gdynia during BALTOPS 2026.

Photo: U.S. Navy photo by Chief Mass Communication Specialist Sandi Grimnes Moreno · Public domain (PD-USGov-Military-Navy)

Timeline1

  1. MilestoneConfirmed

    Completes 7,500+ mile unsupported trans-Pacific voyage, San Diego to Japan

    SourcesSeasats (PR Newswire)

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.
    CompanySeasats Autonomous Surface Vessel Crosses The Pacific, Completes 7,500+ Mile Mission

    Seasats (PR Newswire) · Jul 30, 2025 · Supports: System milestone

    “In total, the Lightfish traveled over 7,500 miles over 150 days, showcasing its exceptional reliability and endurance.”
  2. 2.
    CompanySeasats | Ocean Autonomy That Works

    Seasats · Supports: System

    “Our flagship autonomous vessel. Light. Simple. Modular.”

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