Thanks for explanation. What is the armament of this russian modified a/c?
30mm (37mm?) cannon and two mg's?
However M Willians do not present FW 190 and Zero versions. Zero didnt have much speed, but FW! What is the FW in this comparison?
Sounds interesting how the two source disagree a lot with respect to maximum airspeeds. What is the source of the first? And the second? How about evaluations of the manufacturer itself, Bell aircrafts?
I would like some evaluation about P-39 maximun speeds at diferent altitudes! I found in the forum a flight test about this aircraft but no references about maximum speeds.