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Originally Posted by BlackBerry
When P51 dives to 4500 m=15000ft altitude, and reaches 640km/h=400 mph IAS,
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Why 400mph IAS ? Why not any other number?
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Unfotunatly, sonic speed at 4500m altitude is 322m/s, that is to say, the tip of airscew is 1 mach. There is no mach number "concept" in il2's model at all, how can I believe that il2 simulates 1 Mach aerodynamics very well?
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Prop planes can't break sonic barrier so it's not that important for Il2 to have highly detailed Mach model.
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Tempest could dive to 450 mph IAS below 20000ft, aha, tempest's big rotol 14-ft airscrew, 3800rpm, 450mph IAS, the tip of rotol must be supersonic, so is P51's hamilton, thus the efficiency curves of their airscrews play an important role when they dive to high speed.
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Yes it does.
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Why tempest outdives p51? For more efficiency airscew @ supersonic? Maybe. For much more heavier fuselage? Probably.
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It does? Maybe, depends which models you take for comparison .
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All in all, il2's model is lack of supersonic simulation, that's why we couldn't experience what tempest/p51 should be. That's why tempest couldn't outdive dora easily in game.
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It should out dive Dora easily, why ?