British unmanned systems manufacturer MSubs has launched Cetus, the UK Royal Navy’s first Extra Large Underwater Autonomous Vehicle (XLUAV) technology demonstrator. At 12 m in length, 2.2 m in diameter, and weighing up to 25 tonnes with a full test payload, the demonstrator is claimed to be the largest and most complex crewless submersible procured by a European navy to date. MSubs of Plymouth was awarded the £21.5 million contract to manufacture Cetus in November 2022.
Once delivered, the vessel will be deployed independently to secure the country’s critical infrastructure and monitor sub-sea activities across its territories. The XLAUV will sail on other missions supporting the navy’s existing crewed submarines, including the Astute-class nuclear-powered submarines and their successors.
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