HII Unmanned Systems
Massachusetts maker of REMUS underwater drones, picked for Britain's £303m mine-hunting drone contract.
Last refreshed: 8 November 2026 · Appears in 1 active topic
Timeline for HII Unmanned Systems
Won the £303m MHC Block 2 UUV award
Autonomous Systems: Land & Sea: UK picks HII at £303m; tender said £125mBackground
HII Unmanned Systems was named intended winner of the UK's Mine Hunting Capability Block 2 contract on 3 November 2026, at £303m for eight mission systems against a £125m tender estimate, with an option for twelve more. TKMS Atlas UK, Teledyne Gavia and Exail lost. Signature was planned for 16 November.
The business is the uncrewed-systems group of HII's Mission Technologies division, based at Pocasset, Massachusetts, and led by Duane Fotheringham. It builds REMUS underwater vehicles; HII says it has delivered more than 750 to over 30 countries. It delivered the first REMUS 130 in June 2026.
HII had pitched REMUS to the Royal Navy in May and enlarged its Portchester site as a European hub.
Who won the Royal Navy MHC Block 2 underwater drone contract?
Why did the UK pay £303m for MHC Block 2 when the estimate was £125m?
Written with AI from Lowdown's published reporting. Not individually reviewed by an editor. Updated 8 November 2026. Editorial standards.