Naval Group Seaquest S USV model at UMEX 2026. (Janes/Neil Dee)
Naval Group provided a development update on its Seaquest S unmanned surface vehicle (USV) and unmanned combat underwater vehicle (UCUV) extra-large unmanned underwater vehicle (XLUUV).
Seaquest S NATO trials
Speaking to Janes at UMEX 2026 exhibition in Abu Dhabi on 20 January, Captain Aymeric Moullart de Torcy (retd), operational marketing director unmanned systems and cyber at Naval Group said that the 9.3 m Seaquest S USV had successfully completed “five weeks of intense operations” on NATO’s critical infrastructure protection mission, Operation ‘Baltic Sentry’, and at NATO Exercise ‘REPMUS 25′ (Robotic Experimentation and Prototyping with Maritime Unmanned Systems).
Capt de Torcy said that during Baltic Sentry, Seaquest S “was operated for three weeks inside Task Force X”. Task Force X is a concept from NATO Allied Command Transformation (ACT) using unmanned assets to counter threats. The Baltic Sentry tests proved that “we could operate [Seaquest S] up to Sea State 5 in the Baltic Sea during harsh weather and we were quite alone at sea during that time”. Seaquest S conducted intelligence, surveillance, and reconnaissance (ISR) tests as part of Baltic Sentry. While there have been no sales of Seaquest S yet, the USV can be rented from Naval Group, which was the manner chosen by Task Force X, Capt de Torcy said.
Meanwhile, Capt de Torcy said “we operated alongside the French Navy during the REPMUS exercise in Portugal” in September 2025; with USV operations conducted “from shore and from a French Navy supply ship, the [Loire-class support ship] Seine
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