Is the all-metal Ki-84 shedding elevators at @ 450 IAS dive have any "historical" basis?
I mean, even 109G-14 with wooden tail in this game can still do extreme dives without shedding its tail off.
Actually the Ki-84 was not so strong body because Nakajima designed it a lighter.
Also it had "nose up" effect to avoid disintegrating in midair when it tries a high-speed dive.
According to army Ki-84 manual, a dive speed limit of Ki-84 was 750km/h (446mph).
But, IJAAF pilot reported it can dive at 850km/h (520mph) without breaking up.
It seems the manual's dive speed limit has a margin, so it may be tweaked higher in the game.
I remembered that Mr. Busa said he might send a information about it to HTC.
Currently I have no contact to him though.