Was going to say it's unfair to say "RAF limiting itself"... I'm sure it would have a fleet wide fit if the MOD would allow it the budget and/or the leeway in other tasks to prioritise the existing budget that way... but then I reflected that the RAF's apparent requirement for a different radar must raise the unit cost and bear at least some of the responsibility for the limited deployment. All I can say is, it had better be good enough to outweigh the limitation posed by at least half of any formation being equipped with mech scan radars for the remaining life of the fleet!