HII Wins Pentagon Deal for Sub Torpedo Tube UUV System

Key Takeaways

• HII awarded DIU contract for autonomous torpedo‑tube UUV system
• System uses REMUS 600/620 UUVs, no diver assistance required
• First forward‑deployed torpedo‑tube launch completed on Virginia‑class USS Delaware
• HII has delivered 750+ REMUS vehicles to 30+ nations, 90% still active

Pulse Analysis

The Pentagon’s latest undersea initiative underscores a broader strategic pivot toward autonomous maritime platforms. By leveraging HII’s REMUS family, the new torpedo‑tube launch and recovery system promises to embed unmanned capabilities directly into existing submarine fleets without costly retrofits. This approach not only streamlines logistics but also expands the operational envelope of submarines, allowing them to conduct intelligence, surveillance, and reconnaissance missions deep beneath the surface while keeping crew exposure to a minimum.

Recent field trials have validated the concept. In June 2025, the USS Delaware executed three fully autonomous launch‑and‑recovery cycles of a REMUS 600 from its torpedo tubes, a first for forward‑deployed operations. A month later, a joint HII‑WHOI team demonstrated the REMUS 620’s ability to dock inside a submerged torpedo‑tube fixture and execute a reverse swim‑out launch at Seneca Lake. These milestones prove that the technology can withstand the harsh shock and fire environments of a submarine’s weapon bay, a critical hurdle for operational adoption.

For HII, the contract cements its dual role as a premier submarine builder and the leading UUV supplier worldwide. With over 750 REMUS units delivered to more than 30 countries—90% still in service after two decades—the company is uniquely positioned to meet the Navy’s demand for scalable, reliable autonomous systems. As global powers invest heavily in undersea dominance, HII’s integrated manned‑unmanned solutions could become a benchmark for future naval procurement, driving further innovation and market growth in the defense sector.