HMS Vengeance (S31)

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For other ships of the same name, see HMS Vengeance.
HMS Vengeance returning to HMNB Clyde MOD 45147685.jpg
HMS Vengeance returning to HMNB Clyde
United Kingdom
Name: HMS Vengeance
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
Motto: Safe by my strength
Fate: In Devonport for refit, as of 2012
Badge: Vengeance crest.jpg
General characteristics [1]
Class & type: Vanguard-class submarine
Displacement: 15,900 tonnes, submerged[3]
Length: 149.9 m (491 ft 10 in)
Beam: 12.8 m (42 ft 0 in)
Draught: 12 m (39 ft 4 in)
Speed: In excess of 25 knots (46 km/h; 29 mph), submerged
Range: Only limited by food and maintenance requirements.
Complement: 135
Sensors and
processing systems:
Electronic warfare
& decoys:
  • Two SSE Mk10 launchers for Type 2066 and Type 2071 torpedo decoys
  • RESM Racal UAP passive intercept

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.[4]

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.[5]

Operational history[edit]

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.[4][6]

Vengeance is currently (as of 2012) undergoing a three-and-a-half year refit at HMNB Devonport near Plymouth[7] while her sister ship Vigilant is taking her place.[8]


General characteristics[edit]

  • 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

See also[edit]


External links[edit]