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HMS Anson August 2022
HMS Anson in Barrow-in-Furness (August 2022)
Career (United Kingdom)
Name: HMS Anson
Namesake: George Anson, 1st Baron Anson
Ordered: March 2010
Builder: BAE Systems Submarine Solutions
Cost: £1.420B (budget)[1]
Laid down: 13 October 2011
Launched: 20 April 2021
Sponsored by: Julie Weale
Christened: 11 December 2020
Commissioned: 31 August 2022[2]
In service: TBD[3]
Identification: Pennant number: S123
Motto: Nil desperandum (Never despair)
Honours and
awards:
Four inherited battle honours
Status: In active service
Badge: HMS Anson badge
General characteristics
Class & type: Astute-class fleet submarine
Displacement:
  • Surfaced: 7,000 to 7,400 t (6,900 to 7,300 long tons)[4][5]
  • Submerged: 7,400 to 7,800 t (7,700 long tons)[4][5]
Length: 97 m (318 ft 3 in)[4][5]
Beam: 11.3 m (37 ft 1 in)[4][5]
Draught: 10 m (32 ft 10 in)[4][5]
Propulsion: Rolls-Royce PWR 2 reactor, MTU 600 kilowatt diesel generators
Speed: 30 kn (56 km/h; 35 mph), submerged[4][5]
Range: Unlimited[6]
Endurance: 90 days[6]
Test depth: Over 300 m (984 ft 3 in)
Complement: 98 (capacity for 109)[4]
Sensors and
processing systems:
Armament:
  • 6 × 21 in (533 mm) torpedo tubes with stowage for up to 38 weapons:[7]
  • HMS Anson is the fifth Astute-class nuclear-powered fleet submarine of the Royal Navy. She is the eighth vessel of the Royal Navy to bear the name, after Admiral George Anson.

    History[]

    On 25 March 2010, BAE Systems were given the authorisation by the British government to begin construction on boats 5 and 6 (Anson and Agamemnon), being given a £300 million contract for the "initial build" of boat 5 and "long lead procurement activities" for boat 6.[8] Later that year work was begun on the pressure hull and reactor compartments. On 15 September 2011 it was announced that boat 5 would be named Anson;[9] it was previously believed that boat 5 would be Agamemnon and boat 6 Anson. Her keel was ceremonially laid on 13 October 2011.[10][11] On 19 November 2015, a possible new contract worth £1.3 billion was signed for HMS Anson.[12] She was officially named on 11 December 2020,[13][14] was rolled out of the Devonshire Dock Hall on 19 April 2021,[15] and launched on 20 April 2021.[16] It completed its first practice dive in a dock on 14 February 2022.[17] She was commissioned on 31 August 2022 prior to starting sea trials.[18][19] On 19 February 2023 she left Barrow for the first time for her sea trials.[20] These were declared as complete on 21 May 2024.[21]

    At the beginning of February 2025, the submarine docked for the first time in the Port of Gibraltar to load weapons.[22]

    Design[]

    Propulsion[]

    Anson's nuclear reactor will not need to be refuelled during the boat's 25-year service. Since the submarine can purify water and air, she will be able to circumnavigate the planet without resurfacing. The main limit is that the submarine will only be able to carry three months' supply of food for 98 officers and ratings.

    Weapons[]

    Anson will have provision for up to 38 weapons in six 21-inch (533 mm) torpedo tubes.[23] The submarine will be capable of using Tomahawk Block IV land-attack missiles with a range of 1,000 miles (1,600 kilometres)[24] and Spearfish heavyweight torpedoes.

    References[]

    1. "Ministry of Defence Major Projects Report 2015 and the Equipment Plan 2015 to 2025". National Audit Office. 22 October 2015. p. 43. https://www.nao.org.uk/wp-content/uploads/2015/10/Major-Projects-Report-2015-and-the-Equipment-Plan-2015-2025.pdf#page=44. 
    2. "PM speech at the Commissioning of HMS Anson: 31 August 2022". 31 August 2022. https://www.gov.uk/government/speeches/pm-speech-at-the-commissioning-of-hms-anson-31-august-2022. 
    3. "Ministry of Defence HMS Audacious". UK Hansard. 6 February 2020. https://www.parliament.uk/business/publications/written-questions-answers-statements/written-question/Commons/2020-01-30/10350/. "The delay to the delivery of Audacious will have some impact on the schedule for the next Astute Class, Anson." 
    4. 4.0 4.1 4.2 4.3 4.4 4.5 4.6 Bush, Steve (2014). British Warships and Auxiliaries. Maritime Books. pp. 10–11. ISBN 978-1904459552. 
    5. 5.0 5.1 5.2 5.3 5.4 5.5 "Astute-class attack submarines". Royal Navy. http://www.royalnavy.mod.uk/the-equipment/submarines/fleet-submarines/astute-class. Retrieved 27 July 2016. 
    6. 6.0 6.1 "BAE Systems - Astute class submarines". BAE Systems. http://www.baesystems.com/en/product/astute-class-submarines-enhanced. Retrieved 25 July 2016. 
    7. "UK's most powerful submarine joins the Navy". Ministry of Defence. 27 August 2010. http://www.mod.uk/DefenceInternet/DefenceNews/EquipmentAndLogistics/UksMostPowerfulSubmarineJoinsTheNavy.htm. 
    8. "£300M Order Boost For Shipyard". North West Evening Mail. 25 March 2010. http://www.nwemail.co.uk/home/300m-order-boost-for-shipyard-1.688193. 
    9. "Navy's newest Astute Class submarine named". Ministry of Defence. 15 September 2011. http://www.mod.uk/DefenceInternet/DefenceNews/EquipmentAndLogistics/NavysNewestAstuteClassSubmarineNamed.htm. Retrieved 15 September 2011. 
    10. "Underwater Tests Mark Ambush Milestone". North West Evening Mail. 5 October 2011. http://www.nwemail.co.uk/news/underwater-tests-mark-ambush-milestone-1.884679. 
    11. "Barrow keel-laying ceremony for Astute-class submarine". BBC News. 13 October 2011. https://www.bbc.co.uk/news/uk-england-cumbria-15286007. 
    12. "£1.3Bn contract awarded for latest attack submarine - News stories - GOV.UK". https://www.gov.uk/government/news/13bn-contract-awarded-for-latest-attack-submarine. Retrieved 30 July 2016. 
    13. "HMS Anson: Fifth Astute-Class Submarine Officially Named". British Forces Broadcasting Service. 11 December 2020. https://www.forces.net/news/hms-anson-astute-class-submarine-officially-named. 
    14. "Fifth hunter-killer submarine named Anson" (in en). 11 December 2020. https://www.gov.uk/government/news/fifth-hunter-killer-submarine-named-anson. 
    15. Allison, George (19 April 2021). "New nuclear submarine HMS Anson rolled out". UK Defence Journal. https://ukdefencejournal.org.uk/new-nuclear-submarine-hms-anson-rolled-out/. 
    16. "Fifth state-of-the-art Astute submarine is launched" (in en). BAE Systems. 20 Apr 2021. https://www.baesystems.com/en/article/fifth-state-of-the-art-astute-submarine-is-launched. 
    17. "Hunter-killer HMS Anson completes first practice dive in dock" (in en). Royal Navy. 14 February 2022. https://www.royalnavy.mod.uk/news-and-latest-activity/news/2022/february/14/20220214-hunter-killer-hms-anson-completes-first-practice-dive-in-dock. 
    18. Edwards, Lucy (31 August 2022). "Boris Johnson visits BAE Systems in Barrow". Cumbria Crack. https://cumbriacrack.com/2022/08/31/boris-johnson-gives-speech-at-bae-systems-in-barrow/. 
    19. Allison, George (31 August 2022). "World's most advanced attack submarine joins British fleet". UK Defence Journal. https://ukdefencejournal.org.uk/worlds-most-advanced-attack-submarine-joins-british-fleet/. 
    20. "BAE Systems delivers fifth and most advanced Astute submarine to the Royal Navy" (in en). 19 February 2023. https://www.baesystems.com/en/article/bae-systems-delivers-fifth-and-most-advanced-astute-submarine-to-the-royal-navy. 
    21. "Royal Navy’s newest hunter-killer submarine edges towards front-line operations". 21 May 2024. https://www.royalnavy.mod.uk/news-and-latest-activity/news/2024/may/21/240521-hms-anson-us-deployment. 
    22. "Royal Navy Submarine HMS Anson in Gibraltar taking on munitions". gbc.gi. Gibraltar: GBC News. 5 February 2025. https://www.gbc.gi/news/royal-navy-submarine-hms-anson-gibraltar-taking-munitions. 
    23. "Alien submarine breaks technical barriers". BBC News. 7 May 2007. http://news.bbc.co.uk/2/hi/business/6625477.stm. Retrieved 20 March 2016. 
    24. "United States Navy Fact File: Tomahawk Land Attack Missile". US Navy. http://www.navy.mil/navydata/fact_display.asp?cid=2200&tid=1300&ct=2. Retrieved 27 July 2016. 

    External links[]


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