3PR
Of course AirTankers' 3PR could also come from AAR to other nations' aircraft assuming clearances etc. That, of course, would also depend on the Contract and the Tasking - if it was MoD tasked and within the contracted hours etc it presumably would seem not to be 3PR. This area could get very confusing. If it were a 3PR task who would fly the aircraft? I assume then that nobody could consider this to be the mercenaries "stealing" from the purely RAF crews - or would they? It would also seem that the "mercenaries" would need to gain an AAR qualification and maintain currency. Once they have done that, why not use them on the core task?