I need help

[Mitya]

Note that the difference shouldn´t be exaggerated. Each production aircraft has a margin of performance, not a pin point performance. The Werksgarantie for performances was only valid in within a margin below and above the legend perfromance. And there are actually dozens of reasons aviable to explain such a difference: the individual state of the engine beeing the most important.

And there are data of tests on G4 Allies or Germans?

 

[Mitya]

In general so I that has not found on G4...