Gatt,
The Nk and Ki.84 (prolly the best late war Jap fighters) didnt even have a max speed over 400 mph and POOR high alt performance, plus they suffered from unreliable engines.
Although Japanese Nk pilots regarded the hellcat as 'east meat' the F4U was by far superior because of its high altitude performance and top speed of 417 mph.
As one japanese pilot said: "The P-38 pilots, flying at great heights, chose when and where they wanted to fight... with disastrous results for our men."
P.S. Model the B29 and those Nikis won't come close.
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"Then I played the trump. The Spitfire was clawing wildly through the air, trying to follow me in a roll, when I dropped the nose. The Thunderbolt howled and ran for earth. Barely had the Spitfire started to follow--and I was a long way ahead of him by now--when I jerked back on the stick and threw the Jug into a zoom climb. In a straight or turning climn, the British ship had the advantage. But coming out of a dive, there's not a British or a German fighter that can come close to a Thunderbolt rushing upward in a zoom. Before the Spit pilot knew what had happened, I was high above him, the Thunderbolt hammering around. And that was it--for in the next few moments the Spitfire flier was amazed to see a less maneuverable, slow-climbing Thunderbolt rushing straight at him, eight guns pointed ominously at his cockpit."