HII/MetalCraft Marine Autonomous ROMULUS USV with HII Autonomy Successfully Passed a Critical DoW Test

MCLEAN, Va., Aug. 11, 2026 (GLOBE NEWSWIRE) -- HII (NYSE: HII) announced that the U.S. Defense Innovation Unit (DIU) has officially recognized the successful completion of the company’s Production-Ready, Inexpensive, Maritime Expeditionary (PRIME) prototype project, featuring the Watcher small Unmanned Surface Vessel (sUSV), which is based on HII’s ROMULUS-25 Unmanned Surface Vessel and powered by HII’s Odyssey Autonomous Control System (ACS).

The DIU recognition follows HII’s delivery and successful sea testing of two autonomous Watcher ROMULUS-25 vessels in December 2025 under a DIU contract to develop smaller-form-factor autonomous surface vessels for the U.S. Marine Corps.