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

[Crumpp]

The Operating Notes are definative and Notes on the Merlin Engine will reflect the changes in the Flight Information Manual version.

If Operating Notes on the Merlin Engine do not specify 100 Octane for all operational units then the transition in Fighter Command was not complete. If Operating Notes on the Merlin Engine does not mention 100 Octane fuel then it was not the most common fuel.

What do you think all those pilots transitioning from Bomber and Coastal Command would be studying?

You can date the transition by the Operating Notes, they are the primary source for technical changes to the aircraft.