Why still no dive acceleration difference?

[Crumpp]

Okay that is helpful. What Blackberry is wondering, we know the software does these calculations continuously every few milliseconds. In a high speed dive beyond Vmax where TAS is increasing, does the software recognize the degradation of this value? -> Thrust in lbs = 1000lbs. Or maybe it handles it by applying effectiveness factor to this value ->Drag in lbs = 500? Or maybe it ignores it and keeps both opposing forces as static (i.e., "maximum excess force you will have available")?

I can't answer any specific questions about IL2 FM. If it uses standard methods to predict aircraft performance, then it does account for it.

I would be willing to bet it does use standard methods.

Now you know the specific numbers for thrust and drag change. For example here is the P47D22 at Take Off weight from Vs to Vmax:

Thrust available in Pounds
6353.75
6353.75
6353.75
6051.190476
5776.136364
5294.791667
4887.5
4538.392857
4235.833333
3971.09375
3737.5
3630.714286
3529.861111
3434.459459
3344.078947
3258.333333
3176.875
3099.390244
3025.595238
2955.232558
2888.068182
2823.888889
2762.5
2703.723404
2647.395833
2593.367347
2541.5
2491.666667
2443.75
2425.09542

Thrust required in Pounds
1537.476184
1537.476184
1537.476184
1458.574233
1396.29734
1311.942922
1269.557568
1259.393629
1274.840011
1311.284626
1365.430601
1398.36277
1434.870602
1474.747484
1517.813624
1563.911983
1612.9049
1664.671298
1719.104337
1776.109457
1835.602718
1897.509403
1961.762824
2028.303316
2097.07736
2168.036844
2241.138416
2316.342935
2393.614985
2425.09542