Think 320 expalins pretty comprehensively why a lightning won't fly in UK air space - my point was just in answer to the original question of why a Lightning can't operate in UK air space! Either way you look at the matter, it ain't never gonna happen!
Sadly, and with more than a hint of irony, it seems that Britain is the last place you're ever likely to see some of our greatest design and engineering efforts take to the sky.