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Swiftsure-class submarine
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===Incidents=== In the early 1980s ''Sceptre'' collided with a [[Soviet]] submarine and her reactor's protection systems would have performed an automatic emergency shutdown (scrammed the reactor), but her captain ordered the safety mechanisms overridden ([[battleshort]] enabled). The crew were told to say that they had hit an iceberg. This incident was disclosed when David Forghan, ''Sceptre''{{'}}s former weapons officer, gave a television interview which was broadcast on 19 September 1991. The Soviet submarine involved was probably [[Russian submarine Petropavlovsk-Kamchatskiy (K-211)|''K-211 Petropavlovsk-Kamchatsky'']] of the [[Delta-class submarine|Delta III class]], which on 23 May 1981 collided with an unknown submarine, identified at the time as an unknown American {{sclass|Sturgeon|submarine|1}}.<ref>[http://submarine.id.ru/api.php?avar Российский Подводныи Флот (Russian Submarine Fleet) at submarine.id.ru, collision #22 (Russian language)] {{Webarchive|url=https://web.archive.org/web/20120304054958/http://submarine.id.ru/api.php?avar |date=4 March 2012 }}</ref> ''Sovereign'' underwent an extensive refit in the mid-1990s and was rededicated in January 1997. Cracks were discovered in the tailshaft during post-refit [[sea trials]] and she was sent to [[Rosyth]] for 14 weeks of emergency repairs in June 1998 before returning to [[Faslane]].{{Citation needed|date=February 2012}} On 6 March 2000 ''Sceptre'' suffered a serious accident while inside a drydock at the [[Rosyth Dockyard|Rosyth]] yards while undergoing trials towards the end of a major refit. The test involved flooding the drydock, and running the main engines slowly with steam supplied from the shore. However, too much steam was used and the engines over-sped. ''Sceptre'' broke her moorings and moved forward off the cradle she rested on. The steam line ruptured, scaffolding buckled, a crane was pushed forward some {{convert|15|ft|m}}, and the submarine moved forward some {{convert|20|m|ft}} inside the dock.<ref>{{Cite web|url=http://news.bbc.co.uk/2/hi/uk_news/scotland/666943.stm|title=BBC News | SCOTLAND | Nuclear sub crash inquiry|website=news.bbc.co.uk}}</ref> On 26 May 2008, ''Superb'' hit an underwater pinnacle in the [[Red Sea]], {{convert|80|mi|km}} south of the [[Suez Canal]]. She remained watertight, and none of the 112 crew were injured; however, she was unable to resubmerge due to damage to her sonar.<ref>{{cite news |url=http://news.bbc.co.uk/1/hi/uk/7422774.stm |title=UK submarine hits Red Sea rocks |publisher=BBC |date=27 May 2008 |access-date=27 May 2008}}</ref> After undertaking initial repairs at the [[Souda Bay]] [[Souda Bay#Current military activities|NATO base]] on [[Crete]] on 10 June 2008, she passed through the [[Mediterranean]], with a pause (at night) some miles off [[Gibraltar]] to disembark some less critical crew.{{citation needed|date=February 2018}} ''Superb'' then continued back to the UK, arriving at [[HMNB Devonport]] on 28 June 2008.<!-- The 26 Sept 2008 BBC report supports that she went to HMNB Devonport, but does not mention the date -->{{citation needed|date=February 2018}}<ref>{{Cite news|url=http://news.bbc.co.uk/2/hi/uk_news/england/devon/7638229.stm|title=Superb submarine's final service|date=26 September 2008|access-date=2018-04-27|language=en-GB}}</ref> After surveying the damage, the Royal Navy decided to decommission ''Superb'' slightly ahead of schedule on 26 September 2008.<ref>{{cite news |url=http://news.bbc.co.uk/1/hi/england/devon/7638229.stm |title=Superb submarine's final service |publisher=BBC |date=26 September 2008 |access-date=27 September 2008}}</ref>
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