well on 1 of the people's website here, they said that the brits like the p-39d (still not sure if it was d) and at low alts it could fly circles around the 109-es and 109-fs
His quote also said the 109E very closely matches the Spitfire in turn performance, which implies, logically, the P-39 will fly circles around a Spitfire also - which, according to other testings, clearly isn't the case. My my, a glaring contradiction.
Did I also mention the British once tested the P-51 at 414mph max speed, and thought the plane overheated too much?
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Here's a tip. Everyone on these boards is biased one way or another, including yours truly. Don't trust the guys that pretend to be 'objective', because there's no such thing. Everything comes down to which set of data and records one chooses to believe, and there are two sides to a coin.