Huntington Ingalls' REMUS 300 UUV selected by the US Navy.

According to a PR published by HII on March 30, 2022, the global engineering and defense technologies provider announced its advanced unmanned underwater vehicle, REMUS 300, was selected as the U.S. Navy’s next-generation small UUV (SUUV) program of record. REMUS 300 technology was designed to advance distributed maritime operations by conducting critical underwater missions.
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REMUS 300 UUV at HII's booth, London (Picture source: HII)

The initial phase of the program includes the production and testing of REMUS 300 UUVs over the next year. The vehicle incorporates advanced modularity and open architecture into a compact, man-portable design.

Common applications include mine countermeasures, hydrographic survey, rapid environmental assessment, search and recovery, and marine research. Modular energy sections allow for field replacement of 1.5, 3.0, or 4.5-kilowatt-hour lithium-ion batteries enabling up to 10, 20, or 30 hours of endurance.

The SUUV program, also called Lionfish, is the next generation Mk18 Mod 1 Swordfish program, which also utilizes HII’s REMUS technology. The selection follows a two-year rapid prototyping effort involving multiple user evaluations and spiral developments to refine the REMUS 300 design.

The acquisition was facilitated by the Department of Defense’s Defense Innovation Unit and their commercial solutions opening process via the other transaction authority.