A 1,000-tonne cylindrical component of a newly-built Astute-class submarine has been moved into an indoor manufacturing facility in Cumbria.
The unit, the heaviest ever transported by its manufacturer BAE Systems, is now in the Devonshire Dock Hall in Barrow-in-Furness where the construction of the UK’s new generation nuclear submarines is taking place.
The first two submarines of the seven-sub programme - HMS Astute and HMS Ambush - are already in service. The third vessel, Artful, has just been handed over the Royal Navy after sea trials.
A further four, including Audacious, Anson, Agamemnon and an as-yet-unnamed submarine, are in various construction stages at Barrow.
Last month, it was announced BAE Systems had been awarded a contract for the fifth submarine, taking the total value for work on the vessel to £1.3bn. The contract covers the design and remaining build, test and commissioning activities for Anson.