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Written question asked by Dave Doogan (Scottish National Party) on Monday, 26 June 2023, in the House of Commons. It was due for an answer on Thursday, 29 June 2023 (named day). It was answered by James Cartlidge (Conservative) on Thursday, 29 June 2023 on behalf of the Ministry of Defence.


Trident Missiles

Question

To ask the Secretary of State for Defence, what estimate he has made of the cost to the public purse of UK participation in the Trident II Service- Life Extension programme.

Answer

The United Kingdom (UK) approved participation in the United States (US) led Life Extension programme to enable Trident II D5 missiles to remain in service until at least the 2040s at a cost of £320.5 million. To maintain the shared inventory with the US, the UK additionally participates in other missile related programmes to sustain key components and extend the service life of the boost rocket motors at a cost of £140 million and £361 million respectively, taking the total cost to £821.5 million.


Secondary information

Type
Written question
Reference
191140
Session
2022-23
Subjects
Expenditure Trident missiles
Contains statistics
Yes
Link
View this Written question on www.parliament.uk