Trident
Defence

Paul Flynn (Newport West, Labour)
To ask the Secretary of State for Defence what the planned end-of-service date is for each of the Vanguard Class submarines.

Peter Luff (Parliamentary Under Secretary of State (Defence Equipment, Support and Technology), Defence; Mid Worcestershire, Conservative)
As outlined in the Strategic Defence and Security Review, the planning assumption for service entry of the first Vanguard successor submarine is 2028. The in-service dates for subsequent boats will be determined at Main Gate in 2016. The out-of-service dates for the Vanguard class submarines will be managed to ensure that continuous at sea deterrence is maintained throughout the transition to the new class.
