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

[Crumpp]

The publication is over-ridden by orders and by leaflets issued by the Air Ministry

That does not have anything to do with new editions of the Operating Notes being published.

You as the operator are always responsible for getting the latest information about your aircraft. It is telling the operator that new Air Ministry orders and leaflets are supplements too that edition of the Operating Notes. The Operator is responsible for keeping his information up to date.

New editions will incorporate all the Air Ministry Order and Leaflets enacted since the previous edition.

Once again...

It is a fact the RAF did not complete conversion to 100 Octane until around January 1940. That is evident in the Operating Notes.