KORTHOS / ECOSYSTEM / PRODUCT

Heavyfish

About

About Heavyfish

Heavyfish is Seasats’ larger hybrid-electric autonomous surface vessel, designed to carry up to 1,000 pounds of payload at speeds up to 12 knots. The approximately 9,000-pound platform is intended to remain deployed for as long as six months and can be launched from a vehicle or crane.

Mission configurations include radar, sonar, electronic equipment and other payloads for maritime-domain awareness, anti-submarine work, hydrographic survey, harbour security and high-value-unit escort. Heavyfish extends Seasats beyond its smaller solar-powered Lightfish architecture into higher-power defence and survey missions. The company expects to launch Heavyfish in 2026.

Capabilities

Source-backed capabilities

  • Workflows: Autonomous Surface Vessel, Maritime domain awareness, Marine data collection, Maritime USV
  • Operating environments: Outdoor field environment
  • Target markets: Defense, maritime security, survey and government operators needing a higher-capacity USV.
  • Deployment model: Development-stage platform in Seasats' autonomous surface vessel family.
  • Autonomous surface transit

    Claimed - MarineAI presents Heavyfish for autonomous maritime surveillance, survey and payload operations.

    Source
  • Marine survey and mapping

    Claimed - MarineAI presents Heavyfish for autonomous maritime surveillance, survey and payload operations.

    Source
  • ISR and tactical support

    Claimed - MarineAI presents Heavyfish for autonomous maritime surveillance, survey and payload operations.

    Source

Context

Market context

Heavyfish is Seasats' larger autonomous surface vessel for heavier payloads and longer-range maritime missions.

  • Target environment: Harbors, coastal waters, maritime security zones, survey areas and naval or government surface-domain operations.
  • Workflow context: Maritime domain awareness, patrol, sonar survey, harbor security, anti-submarine support, escort and payload transport.
  • Customer context: Defense, maritime security, survey and government operators needing a higher-capacity USV.
  • Deployment model: Development-stage platform in Seasats' autonomous surface vessel family.
  • Commercial maturity: Development-stage aquatic robot positioned for underwater mobility and inspection workflows, with scaling dependent on field validation, payload fit, and customer adoption.
  • Adoption constraints: Adoption depends on payload integration, endurance, command-and-control, maritime regulation, sea-state performance and customer mission fit.
  • Market position: Heavy-payload USV positioned above Seasats' smaller platforms for longer-range and higher-capacity maritime autonomy.
  • Adjacent products: Seasats Lightfish, Havoc Atlas mUSV, Saildrone Voyager, MARTAC MANTAS

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