Submarine Delivery Agency

The Submarine Delivery Agency is responsible for the procurement, delivery, and support of the UK's submarine capability, ensuring the Royal Navy's submarines are maintained and equipped to meet operational requirements.

Communication Overview

Total releases

Number of press releases published by this department during the last 12 months, based on publicly available announcements.

Avg per month

Average number of press releases published per calendar month over the last 12 months. This smooths short-term fluctuations in publishing activity.

0.3

Avg word count

Average length of published press releases, measured in words. Calculated only for months where content was published.

554

Avg readability

Average Flesch Reading Ease score across all published press releases. Higher values indicate plainer English. Scores are indicative only and vary by subject matter.

24.4

Friday PM releases

Percentage of press releases published after 3pm on Fridays, relative to the department’s total output during the period.

Single-release items

Estimated proportion of announcements published once, without a closely related follow-up release during the same period. This is based on similarity of titles and timing.

100%

Metrics are descriptive only and indicate publication patterns rather than intent or impact.

Releases per month

Based on publicly published press releases (last 12 months)

6 articles

Showing 1-6

Atlantic Bastion plans advancing as autonomous submarine XV Excalibur handed to Royal Navy

Thursday, 11 December 2025

Excalibur is a 12-metre experimental vessel. At a displacement of 19 tonnes, it’s the largest uncrewed underwater vessel ever trialled by the Royal Na...

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HMS Agamemnon completes first dive

Sunday, 12 October 2025

HMS Agamemnon, the sixth Astute Class submarine has successfully completed her first underwater dive. ...

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Major milestone achieved in MOD submarine dismantling project

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HMS Audacious sailed from Barrow in April

Monday, 09 November 2020

The Royal Navy’s fourth Astute Class submarine sailed from the BAES shipyard in Barrow in-Furness for her new home at Her Majesty’s Naval Base Clyde b...

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