I always thought the flaps in a p 40 came out at 300...so I have been searching, cant find crap, but I did find this very cool write up from a P 40 pilot.
very interesting stuff on zero's in there.
"...A number of Zero's shed their wings
at speeds slightly over 350 IAS mph. Japanese would not even
attempt a dive that approached 350 IAS. None of Japan's aircraft
could even stand up to P-40's 30 and 50 caliber guns. It only
required a few incendiary bullet, even from our 30 cal. guns, to
set fire or explode their aircraft...."
zero's in AH go way faster then whats stated here, without losing much control or parts....
http://yarchive.net/mil/p40.html