Project: Queen Elizabeth II Class Aircraft Carriers

A&P Tyne has a contract from BAESSS for two different elements on each vessel. Firstly, a subcontract from BAESSS to fabricate double bottom units for LB02 (the main block allocated to Portsmouth). Secondly to fabricate CB03 (centre block – the flight deck and hangar) on a contract led by BAESSS Clyde as part of the industry competed upper blocks which will be delivered to Rosyth for final integration into the overall Carrier build.

Some of the challenges faced by A&P included:

  • Multiple concurrent fabrication and assembly
  • A planned gap between Ship 1 and Ship 2
  • 2000T of steel per CB03 unit
  • 1200T of multidiscipline outfitting per CB03 unit
  • 1000T of temporary steel support

LB02 for each ship involves fabrication of 9 units totalling some 800 tonnes of structural steel with limited outfit scope.

CB03 for each ship involves fabrication of 45 units totalling over 2500 tonnes of structural steel to be assembled in four blocks.

QEC QELZ – CB03 – Centre (Upper Block) – Ship 1

  • 18 Month build duration
  • Cut Steel Mon 1st March 2010
  • Load-out 13th Sept 2011
  • Client free issue materials
  • Multi-discipline scope
  • 5 constructed rings
  • At 9 units per ring
  • Unit weights up to 400T each
  • 4 delivered rings
  •  Each ring made up of 2-½ rings
  • Port Ring made up of 5 units
  • Stbd Ring made up of 4 units

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