Sea Hunter

Sea Hunter is a 132-foot trimaran uncrewed surface vessel built by Leidos under DARPA's Anti-Submarine Warfare Continuous Trail Unmanned Vessel program and transferred to the Office of Naval Research and the Navy's Unmanned Surface Vessel Division One. It is designed to autonomously transit for 60 to 90 days, shadow conventional diesel-electric submarines at long range, and obey the International Regulations for Preventing Collisions at Sea without a crew on board.

The ship sailed unassisted from San Diego to Pearl Harbor in 2019, becoming the first USV to conduct an autonomous Pacific transit, and has since informed the Navy's Medium and Large USV programs. Along with sister vessel Sea Hawk, Sea Hunter is a central testbed for the Navy's hybrid fleet concept that pairs a smaller manned surface force with numerous uncrewed distributed platforms.

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