[14] The submarine is capable of firing Tomahawk Block IV land-attack missiles with a range of 1,000 miles (1,600 kilometres)[15] and Spearfish heavyweight torpedoes.

[18] She was eventually formally named on 16 December 2016,[2] and floated out on 28 April 2017, and was due to leave in 2018 for sea trials.

[23] She was again reported in the eastern Mediterranean in early 2023, including stopping for a rest and maintenance period in Limassol Cyprus.

[24] In April 2023 Audacious completed a 363 day deployment, the longest ever for any Astute-class, and returned to Devonport[25] and then Faslane.

[26] Owing to a lack of dry dock facilities pending maintenance work, as of August 2024 Audacious was still alongside in Devonport, having been inactive for 16 months.