Some say it is the supercharger, some say it is the cooling vents. If I were a betting man, and I am not, I would say gun barrels. This is a easy issue to solve. Whomever has a Mustang should tape or plug the barrels and we will settle it once and for all.
Now, the P-47 had 8 of these barrels. I have never noticed the "whistle" on the 47. However, I have not been around too many 47's enough to definitively say one way or another.
The Corsair also had a distinct "whistle" which has been proven to be a cause of the openings in the leading inside edge of the wings that house the radiators for the oil cooler. One on each side.
So, Warbird owners, speak up!
Thanks,
Yellowhammer
Now, the P-47 had 8 of these barrels. I have never noticed the "whistle" on the 47. However, I have not been around too many 47's enough to definitively say one way or another.
The Corsair also had a distinct "whistle" which has been proven to be a cause of the openings in the leading inside edge of the wings that house the radiators for the oil cooler. One on each side.
So, Warbird owners, speak up!
Thanks,
Yellowhammer