My Mum took me to Biggin Hill air show, it must have been in 1968/69 as the Beagle (Pup) was being shown as new, and I remember that was the last time I ever saw/heard an aircraft break the sound barrier, it was a display by a BAC Lightening and it sticks in my mind the sight of this aircraft, first a small dot coming closer and then low level right along the runway completely silent until it past and there was an almighty BANG and then the roar, it was amazing.
No idea why they didn’t allow that anymore……pardon? 😆