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HMS Vengeance (S31)
HMS Vanguard April 1994.jpg
Vanguard, sister ship to Vengeance
Career (UK)
Laid down: 1 February 1993[1]
Launched: 19 September 1998[1]
Commissioned: 27 November 1999[1]
In service: 12 February 2001[2]
Homeport: HMNB Clyde
Fate: In Devonport for refit, as of 2012
Badge: 100px
General characteristics [1]
Class & type: Vanguard-class submarine
Displacement: Dived: 15,900 long tons (16,200 t)
Length: 149.9 m (491 ft 10 in)
Beam: 12.8 m (42 ft 0 in)
Draught: 12 m (39 ft 4 in)
  • 1 × Rolls-Royce PWR2 nuclear reactor
  • 2 × GEC turbines; 27,500 shp (20.5 MW)
  • 1 × shaft, pump jet propulsor
  • 2 × auxiliary retractable propulsion motors
  • 2 × WH Allen turbo generators (6 MW)
  • 2 × Paxman diesel alternators; 2,700 shp (2.0 MW)
Speed: Dived: 25 knots (46 km/h; 29 mph)
Range: Unlimited distance; 20–25 years
Complement: 14 officers
121 enlisted
Sensors and
processing systems:
Electronic warfare
& decoys:
  • 2 × SSE Mk10 launchers for Type 2066 and Type 2071 torpedo decoys
  • RESM Racal UAP passive intercept
  • Armament:
  • 4 × 21 in (533 mm) torpedo tubes for Spearfish torpedoes
  • 16 × ballistic missile tubes for 16 x Lockheed Trident D5 SLBMs carrying up to 192 warheads
  • HMS Vengeance is the fourth and final Vanguard-class submarine of the Royal Navy. Vengeance carries the Trident ballistic missile, the UK's nuclear deterrent.[3]

    Vengeance was built at Barrow-in-Furness by Vickers Shipbuilding and Engineering Ltd (now BAE Systems Submarine Solutions), was launched in September 1998, and commissioned in November 1999.

    Before she was commissioned, the British Government stated that once the Vanguard submarines became fully operational, they would only carry 200 warheads.

    Vengeance carries the unopened "last instructions" (letters of last resort) of the current British Prime Minister that are to be used in the event of a national catastrophe or a nuclear strike.[4]

    Operational history[edit | edit source]

    On 31 March 2011, while on a training exercise Vengeance suffered a blockage in her propulsor causing a reduction in propulsion. The boat returned to Faslane naval base on the surface under her own power. According to the MOD the problems were not nuclear related.[3][5]

    Vengeance is currently (as of 2012) undergoing a three-and-a-half year refit at HMNB Devonport near Plymouth while her sister ship Vigilant is taking her place[6]

    Affiliations[edit | edit source]

    General characteristics[edit | edit source]

    • Displacement: 16,000 tons submerged
    • Propulsion: Rolls-Royce PWR2 reactor, two GEC turbines, single shaft, pump jet propulsor
    • Electrical Power: two Paxman diesel generators, two WH Allen turbogenerators
    • Speed: 25 knots (46 km/h; 29 mph) submerged
    • Complement: 14 officers, 121 men
    • Strategic Armament: 16 Lockheed Trident II D5 ballistic missiles
    • Defensive Armament: four 533 mm (21-inch) torpedo tubes, Spearfish torpedoes

    References[edit | edit source]

    External links[edit | edit source]

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