§ Mr. Hancock
To ask the Secretary of State for Defence how many Joint Strike Fighters the United Kingdom is planning to buy; what the projected cost and final delivery date is; and if he will make a statement. 
§ Mr. Hoon
Our current planning assumption is that 150 Joint Strike Fighters will be purchased to meet our requirement for a Future Joint Combat Aircraft. Final numbers will depend on the choice of variant and on the outcome of work to confirm future UK fast jet requirements. The estimated procurement cost would be up to £10 billion, dependent on numbers of aircraft required, variant selected and how it is to be supported through life. Under current planning assumptions, the last of the 150 aircraft would be delivered by the end of 2024.