The J Loadie can operate in a similar way to an SH crewman, and is a key part of the Team on the Flight Deck in many of the higher end uses of the acft, making them QMETIs is a natural progression of that role. The RAF very much leads the way in this method of operating the acft and is something some of the smaller Nations that have brought it will need to get their heads around as they move to make full use of the huge capabilities that the acft has.