When I joined the Bristol Aeroplane Company Ltd in 1961 for the final year I loved in the apprentice hostel in the old RAF station on filton airfield. I walked around the airfield to work each morning.

One morning, instead of the usual quiet, there were several Vulcans on the dispersal outside the University Air Squadron Hangar guarded by mean – looking RAF police with even meaner looking Alsatians.

Later that day we saw the Vulcan making a stream take-off.