0634 vulcan effect circled
the last ever display at Old Warden on 4th October 2015, the Bristol M1C was displaying (circled) but hardly anybody was watching it. Out to the west the Vulcan was circling in the distance and everybody was watching it instead. I might have been the first to see it as I was listening to it on my airband radio and knew where to look! I think they call it the Vulcan effect.