The programme is currently operating within its cost approvals, for both initial procurement and support.
The current estimate for F-35 support costs from 2006-2020 is £1.2 billion. This is for the UK's contribution to the F-35 Global Support Solution, and support and maintenance for the UK fleet. It also includes initial commitments for integration of UK weapons, infrastructure and development of training facilities.
Support costs beyond this point will form part of approvals that will be sought through the normal Investment Approvals Committee process.