Valiant-class submarine: Difference between revisions
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{{Infobox Class| |
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{| border="1" align="right" cellpadding="2" cellspacing="0" width="300" style="margin-left:1em;margin-bottom:1em" |
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|Image=[[Image:49 HMS Warspite entering Gibraltar Feb1970.jpg|300px]] |
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|Image caption= HMS Warspite |
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|Country=United Kingdom |
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|colspan="2" style="text-align:center"|HMS ''Warspite'' |
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||Country flag=Naval Ensign of the United Kingdom.svg |
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|Builders=[[Vickers Armstrong]] |
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!style="color: white; height: 30px; background: navy no-repeat scroll top left;"|Valiant-class |
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|Operators={{navy|UK}} |
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!style="color: white; height: 30px; background: navy no-repeat scroll top left;"|[[Image:Naval Ensign of the United Kingdom.svg|60px|RN Ensign]] |
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|Preceding class= [[HMS Dreadnought]] |
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|Following class= [[Churchill class submarine]] |
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!colspan="2" align="center" style="color: white; height: 30px; background: navy no-repeat scroll top left;"|General characteristics |
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|First commissioned date= [[18th July]] [[1966]] |
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|First in service date= |
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|Displacement: |
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|Final decommission date= [[12th August]] [[1994]] |
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|4,200 tons surfaced, 4,900 tons dived |
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|Final out of service date= |
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|Total ships in class=2 |
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|Length: |
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|Total ships active= 0 |
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|285.7 ft (87 m) |
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|Total ships building= |
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|Total ships fitting out= |
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|Beam: |
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|Total ships stored= |
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|33.3 ft (10.1 m) |
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|Total ships out of service=2 |
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|Total ships sunk= |
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|Draught: |
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|Total ships scrapped= |
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|27 ft (8.2 m) |
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|Total ships preserved= |
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|Total ships unbuilt= |
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|Propulsion: |
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|Ship type=[[Submarine|Fleet submarine (SSN)]] |
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|One [[Rolls-Royce plc|Rolls-Royce]] Pressurised Water Reactor ([[Rolls-Royce PWR|PWR1]]), two [[English Electric]] steam turbines, one shaft, 15000 hp (11 MW), one [[Paxman (engines)|Paxman]] diesel-electric generator |
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|Ship displacement= Surfaced:4400tons |
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Submerged:4900tons |
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|Speed: |
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|Ship length= 86.9m (285ft) |
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|20 knots (37 km/h) surfaced, 28 knots (52 km/h) dived |
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|Ship beam= 10.1m (33ft 3in) |
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|Ship draught=8.2m (27ft) |
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|Range: |
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|Ship draft= |
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|Ship propulsion= One Rolls Royce pressurised water cooled reactor powering two steam turbines driving one shaft. |
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|Ship speed= Surfaced:20knots |
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|Complement: |
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Submerged:29knots |
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|116 |
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|Ship range= Unlimited except by food supplies |
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|- |
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|Ship test depth= |
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|Armament: |
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|Ship boats= |
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|6 x 21 in (533 mm) torpedo tubes (All located at the bow. 24 torpedoes in total) |
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|Ship capacity= |
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|Ship complement=103 |
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Was later equipped with Harpoon |
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|Ship sensors= |
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|Ship EW= |
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|Preceding Class: |
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|Ship armament= six 21in (533mm) bow |
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|Dreadnought |
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32 mk8 and mk24 tigerfish torpedoes or 64 mk5 and mk6 mines. |
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Later changed to 26 torpedoes and six UGM-84B sub harpoon anti ship missiles or stonefish and sea urchin mines. |
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|Succeeding Class: |
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| ⚫ | |||
|Churchill class |
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|- |
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| ⚫ | |||
The '''''Valiant''-class''' was the first fully British nuclear fleet submarine, as the first nuclear submarine, [[HMS Dreadnought (S101)|HMS ''Dreadnought'']], used an American nuclear reactor. There were only two boats of the class, the first boat, ''Valiant'' (the nameship) being commissioned just three years after ''Dreadnought'' in [[1966]], while ''Warspite'' commissioned the following year. Both were built by [[Vickers]] at [[Barrow-in-Furness]]. |
The '''''Valiant''-class''' was the first fully British nuclear fleet submarine, as the first nuclear submarine, [[HMS Dreadnought (S101)|HMS ''Dreadnought'']], used an American nuclear reactor. There were only two boats of the class, the first boat, ''Valiant'' (the nameship) being commissioned just three years after ''Dreadnought'' in [[1966]], while ''Warspite'' commissioned the following year. Both were built by [[Vickers]] at [[Barrow-in-Furness]]. |
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Revision as of 21:17, 1 February 2008
The Valiant-class was the first fully British nuclear fleet submarine, as the first nuclear submarine, HMS Dreadnought, used an American nuclear reactor. There were only two boats of the class, the first boat, Valiant (the nameship) being commissioned just three years after Dreadnought in 1966, while Warspite commissioned the following year. Both were built by Vickers at Barrow-in-Furness.
The class were based on Dreadnought, but were enlarged by twenty feet (6 m) and had an increased dived displacement of 4900 tons compared to 4000 tons. They were more polished than Dreadnought in the sense that they ran significantly quieter under main power, and also had a Paxman diesel-electric generator that could be used for silent running in emergencies. In most other respects (outside the power plant), the Valiants were identical to Dreadnought.
The Valiants were primarily used in the anti-submarine role, a role that was prominent in the Royal Navy (RN) during the Cold War. In 1967, Valiant set a then RN record of sailing 12,000 miles (19,312 km) submerged in twenty-eight days, from Singapore to the UK. Both boats received a number of refits during their service in the RN, including the capability to use the Harpoon missile. HMS Valiant took part in the Falklands War, one of a number of nuclear fleet submarines to do so.
The Valiants had long careers with the Royal Navy, with Warspite being decommissioned in 1991. The nameship, Valiant, was decommissioned in 1994 due to cracks being discovered in her primary to secondary cooling system. The Valiants were very successful and served as the template for the Resolution-class ballistic submarine and subsequent Churchill-class fleet submarines.