To ask the Secretary of State for Defence pursuant to the answer of 13 November 2007, Official Report, columns 127-28W, on the Joint Strike Fighter Aircraft, what the in-service date is of each category. (166910)

I refer the hon. Member to the answer given by my predecessor on 3 May 2007, Official Report, column 1854W. The System Development and Demonstration phase is due to be completed in late 2013 and the other elements are dependent on when the in-service date is set.