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British Nuclear Sub Rejoins the Fleet

The vessel, one of the UK's four Vanguard Class nuclear submarines, has been officially handed back to the Navy for operational use. Known as a Long Overhaul Period (Refuel), the work package was an enormous engineering task, with the submarine emerging as effectively a new boat inside. Around 2.2 million man-hours were involved in the overhaul under a £350m contract with Babcock Marine at Devonport Dockyard in Plymouth.