questionText: To ask the Secretary of State for Defence, what assessment he has made of the potential impact of the production delays to the F-35 caused by software instability relating to Lockheed Martin’s Block 4 upgrade.
answerText: We do not routinely comment on detailed delivery schedules however, it is not anticipated that the Block 4 delays will impact the declaration of Lightning Full Operating Capability, scheduled for no later than the end of 2025.
heading: F-35 Aircraft: Procurement