HMS Ambush (S120)

HMS Ambush is an Astute-class nuclear-powered attack submarine of the Royal Navy, the second boat of her class.

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

Ambush on sea trials, December 2012.
History
United Kingdom
NameHMS Ambush
NamesakeAmbush
OrderedMarch 1997
BuilderBAE Systems Submarine Solutions
Laid down22 October 2003
Launched6 January 2011
Christened16 December 2010
Commissioned1 March 2013
HomeportHM Naval Base Clyde
IdentificationPennant number: S120
MottoHide And Seek
StatusIn active service
Badge
General characteristics
Class and typeAstute-class fleet submarine
Displacement
  • Surfaced: 7,000 to 7,400 t (7,300 long tons; 8,200 short tons)
  • Submerged: 7,400 to 7,800 t (7,700 long tons; 8,600 short tons)
Length97 m (318 ft 3 in)
Beam11.3 m (37 ft 1 in)
Draught10 m (32 ft 10 in)
Propulsion
  • 1 × Rolls-Royce PWR 2 nuclear reactor, HEU 93.5%
  • 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

Ambush is the third vessel, and the second submarine, to bear the name in Royal Naval service. She was ordered in 1997, laid down in 2003 and commissioned in 2013.

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