Inaccurate performance data for BOB fighters in COD comparing to RL data

[Glider]

He obviously will not mind the RAF using the IIB in July 1940. Can I have one please.

Being serious for a moment, do you know when the first IIB was built, the ones quoted are Spit IB's

Another small point is that anyone who has seen the RAF Pilots Notes will see that the format of the one that Kurfurst quotes, isn't an original document. The format didn't change until well after the war. My notes for the Hunter are still in the WW2 standard layout.