I think you may have the answer there, PAXboy. On my Brooklands visit I noticed a queue of young children were taking turns to sit in G-VTOL, helped by the volunteer guide. I confess that despite my mature years, I too wanted to try it out, but felt a bit embarrassed about it, so wandered off elsewhere.
Later, when the children had gone, I slipped back and was invited to take a turn by the same guide, who said he had seen me looking envious earlier. I think he had probably had the seat raised to its highest position for the youngsters, then returned it to a lower setting which suited me fine, and offered to record the scene for me on my camera. Possibly when Dr Jekyll took his turn recently, it had simply been left high after some youngsters?
Last edited by 603DX; 13th Feb 2013 at 10:53.
Reason: Incorrect attribution of PPRuNer