One of my earliest memories is of my dad, RAF Chief Tech. Jim "Yanto" Butler, being angry at the cancellation of the TSR-2. At the time we lived very near Warton.
He never did tell me exactly what his involvment was, and he died 31 years ago so I'll never know. However, what my dad didn't know about gas turbines wasn't worth knowing.
I still have an original (now faded) photograph of XR219 on my study wall....