As a cr@b working for WG_13s lot, with previous RAF SH experience I find this debate tedious. There are massive diffrences between the two jobs as I am sure any AAC / RAF 'crewman' will tell you. No disrespect to any AAC guys here, but your crewmen aren't trained to anywhere near the same standard that our guys are, although I understand that it's a case of horses for courses.