Submarine Delivery Agency
Delivery Agency
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11 December 2025News story
Atlantic Bastion plans advancing as autonomous submarine XV Excalibur handed to Royal Navy
Excalibur is a 12-metre experimental vessel. At a displacement of 19 tonnes, its the largest uncrewed underwater vessel ever trialled by the Royal Navy.
[XV Excalibur at its naming ceremony]
![[XV Excalibur at its naming ceremony]](https://assets.publishing.service.gov.uk/media/693ae5c86a12691d48491e49/s712_FRPUW-20250515-XJ0343-045__1_.jpg){kind=link}
13 October 2025News story
HMS Agamemnon completes first dive
HMS Agamemnon, the sixth Astute Class submarine has successfully completed her first underwater dive.
[HMS Agamemnon as she dives for the first time at BAE Systems in Barrow.]
![[HMS Agamemnon as she dives for the first time at BAE Systems in Barrow.]](https://assets.publishing.service.gov.uk/media/68ecc7bce7b6794c076bbd1b/s465_RS241949_251009-B6_trim_dive-058-clean.jpg){kind=link}
22 September 2025Press release
King Charles III marks historic milestone for nuclear submarine programme
A major milestone has been reached with tens of thousands of UK jobs and apprenticeships being supported through submarine building, as the Royal Navys newest attack vessel is commissioned.
[His Majesty The King, seen here at the commissioning ceremony of HMS Agamemnon in Barrow-in-Furness]
![[His Majesty The King, seen here at the commissioning ceremony of HMS Agamemnon in Barrow-in-Furness]](https://assets.publishing.service.gov.uk/media/68d41023275fc9339a248c81/s465_RS237474_250922-Commissioning-rushJL-034.jpg){kind=link}
4 June 2025Press release
Major milestone achieved in MOD submarine dismantling project
The fin of decommissioned Royal Navy submarine Swiftsure has been successfully cut and removed.
[Decomissioned Submarine Swiftsure has its fin cut and removed]
![[Decomissioned Submarine Swiftsure has its fin cut and removed]](https://assets.publishing.service.gov.uk/media/684059528dd459f8c947b41d/s465_SDA-2025-039-1066.jpg){kind=link}
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