Spitfires and that engine sound
From where I live in north-west London I can see Bentley Priory from my upstairs windows.
Every year until a couple of years after RAF sold it (it's now an estate of executive houses), at about 1800 on 16th September I would hear that wonderful sound. Looking out, there would be a lone Spitfire performing aerobatics over the priory for about ten minutes.
Did't hear anything today.