On a different tack, there was a requirement for a duty QFI in the tower at Barkston Heath if solo circuit consolidation was being flown there. In theory, there was a duty vehicle available in which to drive there. But the system of booking it, getting authorisation, getting to MT to collect it (if in fact some Corporal decided he was eventually going to let you have it) that the system was too unwieldy and difficult. It was much easier to jump into an aircraft and fly over there from Cranwell and park next to the tower. So that's what we usually did.