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Astute-class Nuclear Attack Submarine

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The Astute-class Nuclear Attack Submarines are the latest class of nuclear-powered fleet submarines in service with the Royal Navy. The class sets a new standard for the Royal Navy in terms of weapons load, communication facilities and stealth. The boats are being constructed by BAE Systems Submarine Solutions at Barrow-in-Furness. Sixteen boats will be constructed for the Royal Navy. In the 2020s, the Canadian government ordered six Astute-class nuclear attack submarines to replace their three aging Lake Superior-class submarines, named the Kingsmill-class.


  • Type:Nuclear Attack Submarine
  • Service Period: 2007-Present
  • Characteristics
    • Length: 376 feet (114.6 meters)
    • Beam: 37 feet (11.28 meters)
    • Draught: 33 feet (10.06 meters)
    • Displacement: 8,200 tonnes (Surfaced); 8,700 tonnes (Submerged)
  • Crew: 98
  • Propulsion: Rolls-Royce PWR 2 reactor, MTU 600 kilowatt diesel generators
  • Range: Unlimited
  • Speed: 33 knots (61.17 km/hr)
  • Sensors and Processing Systems
    • Thales Type 2076 Sonar
    • Atlas DESO 25 echosounder
    • Thales CM010 optronic masts x 2
    • Raytheon Successor IFF
  • Armament
    • 6 x 21" torpedo tubes (with 38 Spearfish or Mk.46 ADCAP heavyweight torpedoes)
    • 1 x 16-cell Mk.45 VLS (fires UGM-109 Tomahawk cruise missiles and/or UGM-84 Harpoon)

Unit Run[edit]

Royal Navy[edit]

  • HMS Astute (S122)
  • HMS Ambush (S123)
  • HMS Artful (S124)
  • HMS Audacious (S125)
  • HMS Astraea (S126)
  • HMS Agamemnon (S127)
  • HMS Ajax (S128)
  • HMS Andromeda (S129)
  • HMS Agincourt (S130)
  • HMS Amethyst (S131)
  • HMS Argus (S132)
  • HMS Atlas (S133)
  • HMS Alexandria (S134)
  • HMS Arethusa (S135)
  • HMS Achilles (S136)
  • HMS Asgard (137)

Royal Australian Navy[edit]

  • HMAS Hunter
  • HMAS Flinders
  • HMAS Tasman
  • HMAS Brooks

Royal Canadian Navy[edit]

  • HMCS Kingsmill (SSN-885)
  • HMCS Landymore (SSN-886)
  • HMCS DeWolf (SSN-887)
  • HMCS Murray (SSN-888)
  • HMCS Rayner (SSN-889)
  • HMCS Timbrell (SSN-892)
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