Those merlin's sound 'nice' but turn up the volume and listen to a 4360 pass by:
One Second on the Course with Dreadnought – by Tom Fey | Old Machine Press
Interesting article as well.
Or listen to this video from 2:45 to 4:30 with volume loud to hear a mis of high power pass and piston engine start:
Last edited by punkalouver; 4th Nov 2023 at 01:18.