Written Question·Ministry of Defence·UIN 71970
Submarines
Tabled: 29 August 2025
Answered: 8 September 2025
Question
Ben Obese-Jecty
Conservative — Huntingdon
To ask the Secretary of State for Defence, what assessment he has made of the capability of the Royal Navy’s Project CETUS crewless submarine demonstrator following its launch in February 2025.
Answer
Luke PollardThe Ministry of Defence is continuing to assess XV EXCALIBUR to determine its operational capabilities. Since its launch in February 2025, the vessel has already completed Sea Acceptance Trials and recently participated in multinational collaboration as p...
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