But back to crewmen, where this started from my blasé and slightly generalised and unfair comment, they of other fleets are not selected by the same standards nor trained in the same breadth of topics and knowledge of their RAF counterparts. I am basing this statement not on opinion or conjecture, but by the admission of RN & AAC crewmen that I have trained and worked with. Admittedly, they have picked up the thrust of it ( things like weight & balance) in short order, but it's having that training in the first place that sets them apart.