Listen to the Unique P51 whistle sound
 

The jury is out on what makes the P51 Mustang have this unique whining sound. Some say it is the air across the gun ports, others the 2 stage superchargers.

Take a listen to this thing... You can just imagine these things mixing it up with BF109s or straffing a tank column.


http://www.youtube.com/watch?v=8X-kgOn5G6Q