Ops - , I remember Chris and Claire at Derby but I don't think they worked for the airline. They ran there own little show and we did maintenance.There was a big GA side at Derby as the original company included the Wolverhampton Flying Club and of course Elstree. David Ogilvy ran Elstree but was a frequent visitor to Derby. When Derby took the Mossies from Silloth for Spartan Canada David did all the flying which of course included beat ups !