They all sounded cool. I love air shows where P-51s and B-17s do demonstration flights. Their sound is surpassed only by their beauty.
Another hijacking of the Thread...
I’ve always been a Fan of the P-47D.
The P-47 was designed around the Pratt & Whitney R-2800 Double Wasp engine.
It weighed eight tons fully loaded and it was the first Prop Plane to reach 500 MPH. It was an armored Tank with Wings and didn’t have the weakness the P-51 had with its Water Cooled Engine.
They have an operational P-47D at the Air Museum in Galveston TX. Super Duper Cool.