My own Warbird story...
In the Early 80's I was a Ph.D. student at Cambridge University, and learning to cope with a new motorcycle. One day, I chanced to ride out of town for a bit of fresh air and passed beside the American cemetary where large numbers of USAF crew are buried.
I was, as they say, somewhat taken aback when suddenly a Lancaster bomber made a low pass at treetop height over the cemetary, and over my unexpecting self.
If you think ONE Merlin engine is loud, try FOUR of them flying in formation 20' apart and 100' overhead! I could have had a fleet of Harley's and they would have been overwhelmed by the noise.
I nearly dropped the bike and myself into the nearest ditch, but still remember that sound!