Royal Navy's newest sub submerges for first time - ADS Advance

Royal Navy's Newest Sub Submerges for First Time

The Royal Navy crew achieved a major milestone as part of HMS Agamemnon's 'trim dive', a three-day period of testing in Barrow-in-Furness' Devonshire Dock.

This test proves the 7,400-tonne, 97-metre-long attack vessel's stability and safety, shortly after King Charles III officially commissioned the Astute class submarine into the Royal Navy.

Pete Tumelty, Astute Programme Director, BAE Systems' Submarines business said: "This trim dive is the culmination of months of hard work. I'd like to thank all teams involved for their commitment and professionalism.

The process is a key moment in the lead up to its departure from Barrow to join her sister boats in the fleet, based at His Majesty's Naval Base, Clyde.

BAE Systems is proud of the contribution to the nation's security and Barrow's heritage as the home of UK submarine design and build.

Author's summary: Royal Navy's HMS Agamemnon submerges for first time.

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Advance Advance — 2025-10-14

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