Speed graphs for Spitfire and Hurricane

[Insuber]

Originally Posted by Kwiatek

You have to note that from calculated speed graph for different 110 C variants yellow curve is for 601N 30-minut engine power and grey curve is for 601A 5-minut emergency power

Then I notice also that the first graph, taken from the 110 HandBuch, which should be the DB601A at normal boost, shows the same performance for the C-1 of the grey curve in the second graph, which is the DB601A with emergency power. I see another contradiction here of the interpolated curves, don't you think so?