Speed graphs for Spitfire and Hurricane

[camber]

I agree Sutts, that mixture feature of the CloD Spit II does not make sense. I can live with it but I would rather it not be there.

I also am concerned about the fact that top speed in the Hurri and Spits is achieved at lower rpm than maximum (2600-2800 vs 3000). I have not seen any historical reference that to get top level speed, you should retard rpm. On the contrary, maximum speed data is given for 3000rpm.

I suspect it is a consequence of the rpm-boost quirk of the CloD engine model. Lowering rpm from 3000 to 2600 in CloD adds some boost (although in reality the boost controller should be keeping boost constant regardless of rpm). More boost = more power = more thrust in the flight model (presumably), so the non-historical boost increase at lowered rpm gives a corresponding non-historical speed increase at lowered rpm.