JSFfan,
You need to hop on over to Cdr Sharkey Ward's private asylum, Sharkey's World, where the deluded fool has posted a wonderful piece of "analysis" that irrefutably proves that the UK must buy F-18 instead of F-35. It looks reasonably easy to disprove (as is usual for his psychopathic rages) so it shouldn't take you long to shoot him down.
Happy hunting
