I had one really gob-smacking moment this year.
It was the day of the Eastbourne air fair, and quite a few planes were staging from Biggin to go down there and give a display. I'd seen (heard, and felt) a Jaguar set off just as I'd arrived, seen a red jet with a V tail (which I later found was a Fouga Magister?) come in, and seen the Dakota, Spitfire and Hurricane take off while I was waiting for my instructor to go off to Shoreham.
Anyway. I'd gone out and just stepped up onto the wing of the AA5A and slid back the canopy when I heard 'a certain noise'.
I looked up at once to see where this was coming from, and I watched the BBMF Spitfire and Hurricane fly overhead in formation, silhouetted against a beautiful summer sky.
It sent a shiver down my spine, it did. I felt like I had stepped back in time.