<P> HMS Queen Elizabeth has no catapults or arrestor wires and is instead designed to operate V / STOL aircraft; the air wing will typically consist of F - 35B Lightning II multirole fighters and Merlin helicopters for airborne early warning and anti-submarine warfare . The design emphasises flexibility, with accommodation for 250 Royal Marines and the ability to support them with attack helicopters and troop transports up to Chinook size and larger . She is the second Royal Navy vessel to bear the name Queen Elizabeth and is to be based at HMNB Portsmouth . </P> <P> On 25 July 2007, the then Defence Secretary Des Browne, announced the order for two new carriers . At the time of approval the first carrier was expected to enter service in July 2015 and the budget was £ 4,085 m for two ships . The financial crisis led to a political decision in December 2008 to slow production, delaying Queen Elizabeth until May 2016 . This decision alone added £ 1,560 m to the cost . By March 2010 the budget was estimated at £ 5,900 m and in November 2013 the contract was renegotiated with a budget of £ 6,200 m . The in - service date was further extended to 2020 in the Strategic Defence and Security Review in October 2010 . </P> <P> Construction of Queen Elizabeth began in 2009 . The assembly took place in the Firth of Forth at Rosyth Dockyard from nine blocks built in six UK shipyards: BAE Systems Surface Ships in Glasgow, Babcock at Appledore, Babcock at Rosyth, A&P Tyne in Hebburn, BAE at Portsmouth and Cammell Laird (flight decks) at Birkenhead . Two of the lower main blocks, together weighing more than 6,000 tonnes and forming part of the base of the ship, were assembled and joined into one piece on 30 June 2011 . On 16 August 2011, the 8,000 - tonne Lower Block 03 of Queen Elizabeth left BAE Systems Surface Ships' Govan shipyard in Glasgow on a large ocean - going barge . Travelling 600 miles (970 km) around the northern coast of Scotland, the block arrived at Rosyth on the evening of 20 August 2011 . On 28 October 2012, an 11,000 - tonne section of the carrier began a lengthy journey around the south coast of England, avoiding bad weather from the shipbuilding hall at Govan to the Rosyth dockyard; it arrived on 21 November . The forward island was constructed at BAE Portsmouth and attached on 14 March 2013; the aft island was attached in June 2013 . The ski jump was added in November 2013, leaving just the elevators and radar to be lifted into place . By September 2013 Queen Elizabeth was 80% complete internally . A journalist reported that computers on the vessel appeared to be using Windows XP, which has raised concerns about its vulnerability to a cyberattack . </P> <Ul> <Li> <P> Bulbous bow at Appledore </P> </Li> <Li> <P> Forward island leaves Portsmouth in February 2013 </P> </Li> <Li> <P> HMS Queen Elizabeth during fitting - out on 1 December 2014 </P> </Li> </Ul>

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