Radiator drag

[klem]

Originally Posted by CaptainDoggles

Not sure if I would go that far. The results appear to be parallel, i.e. linearly translated, so it would seem to me that we can conclude that differing conditions do not have a significant effect on radiator drag. The relative difference between Closed and Open 6 Notches remains about 5 mph at approx. 20000 feet in each curve.

What I would like to see is a comparison for different altitudes.

And so we should not start splitting hairs. There are considerably larger incorrect level speed figures in the Hurricane at the moment (nearly 60mph @ 20,000ft?). 5mph might matter in a tail chase but in terms of combat performance it means almost nothing. It may be more significant at lower altitudes though.