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Astute Class Submarines

Question for Ministry of Defence

UIN HL5445, tabled on 25 January 2016

To ask Her Majesty’s Government, further to the Written Answers by Earl Howe on 8 December 2015 (HL4047 and HL4049) and on 19 January (HL4886 and HL4885), what assessment they have made of the costs of the reduction of build time of ASTUTEs.

Answered on

1 February 2016

The three Astute-Class submarines that have been handed over to the Royal Navy (HMS Astute, HMS Ambush and HMS Artful) were procured as a batch, so it is not possible to give an accurate assessment of the cost variation between these boats.

The National Audit Office's Major Projects Report for 2015 provides the manufacturing cost for all Astute submarines and, for Boats 4-7, explains the variation between each boat.