HMS Anson (S123)

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.

For other ships with the same name, see HMS Anson.

HMS Anson in Barrow-in-Furness (August 2022)
History
United Kingdom
NameHMS Anson
NamesakeGeorge Anson, 1st Baron Anson
OrderedMarch 2010
BuilderBAE Systems Submarine Solutions
Cost£1.420B (budget)
Laid down13 October 2011
Launched20 April 2021
Sponsored byJulie Weale
Christened11 December 2020
Commissioned31 August 2022
In serviceTBD
IdentificationPennant number: S123
MottoNil desperandum (One mustn't give up hope)
Honours and
awards		Four inherited battle honours
StatusCommissioned, sea trials initiated February 2023
Badge
General characteristics
Class and typeAstute-class fleet submarine
Displacement
  • Surfaced: 7,000 to 7,400 t (6,900 to 7,300 long tons)
  • Submerged: 7,400 to 7,800 t (7,700 long tons)
Length97 m (318 ft 3 in)
Beam11.3 m (37 ft 1 in)
Draught10 m (32 ft 10 in)
PropulsionRolls-Royce PWR 2 reactor, MTU 600 kilowatt diesel generators
Speed30 kn (56 km/h; 35 mph), submerged
RangeUnlimited
Endurance90 days
Test depthOver 300 m (984 ft 3 in)
Complement98 (capacity for 109)
Sensors and
processing systems
  • Thales Sonar 2076
  • Atlas DESO 25 echosounder
  • 2 × Thales CM010 optronic masts
  • Raytheon Successor IFF
Armament
  • 6 × 21 in (533 mm) torpedo tubes with stowage for up to 38 weapons:
    • Tomahawk Block IV cruise missiles
    • Spearfish heavyweight torpedoes
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