Question to the Ministry of Defence:

To ask the Secretary of State for Defence, what is the (a) total, (b) procurement and (c) sustainment cost of the F-35 Lightning II programme; and whether that programme has been delayed from its original schedule.

Portfolio data is published annually in support of the Infrastructure and Projects Authority (IPA) Annual Report which includes a budget baseline and the latest HM Treasury approved estimates in respect of whole life costs. The reports are published here:

https://www.gov.uk/government/publications/mod-government-major-projects-portfolio-data-2023

The financial data for the Lightning Programme in the IPA Gateway Review Report for June 2024 is withheld under Section 43 of the Freedom of Information Act 2000 (Commercial Interests).