It was I think in the late 70's at Farnborough I first saw the 146 conversion but there it was being pushed as a tactical aircraft and had a Landrover posed on a ramp on the outside, asking the BAe bod at the show where the scaffolding looking ramp came from, he told me they carried it onboard, they land, get out assemble the ramp, jiggle the rover out of the side door and down the ramp, strip it down, throw the ramp back inside the Aircraft shut the door and depart......
One thought, Herc it's not.
Though to be in all fairness what the RAF are going to probably use it for, the support vehicles will be available to unload it.