Vulcan roll
Roly Falk did barrel roll the Vulcan at Farnborough; I can't recall the exact year as I went every year starting in 1952 and remember it as one of the highlights of those early visits. I think it was VX777 in 1953 and Falk was flying solo.
On a more somber note, I witnessed the DeH 110 breaking up as it flew towards the crowd and seeing the engines soar over our heads and plough into the crowd behind us. I was part of a very large group of Blackburn Aircraft employees who had travelled down from Brough. As we had all made our way individually from London to Farnborough, we couldn't get a head count until we boarded the train home later that evening.