I had a list of sounds that I would have loved to hear added to the game, but I seem to have misplaced it...

So off the top of my head, hear are the three that I would like the most:
-Dive flaps; Probably wouldn't be much in the way of sound level, but for some aircraft I'm sure that it would be quite noticeable (the SBD comes to mind).
-Rushing air; If your canopy gets a whole in it you hear air rushing past like a cracked window on the highway.
-Turbo; Some aircraft had quite a large turbo, and in the case of a P-47 it was right behind the pilot seat.
If I think of any others I'll add them.