Just a correction. The aircraft that dusted up Cambridge instead of Duxford was NOT an F.111, but an F.4 Phantom. I know, 'cos I was there, as Max Boyce used to say. The report in the safety section of 'Pilot' magazine a couple of months later made interesting reading!.
I was also at Duxford one morning when a BAE 146 arrived on short finals for 240. then, at two miles, suddenly diverted to Cambridge, where he was supposed to be going in the first place!!!.