109 e4 performance

[Crumpp]

I am trying to explain to Crumpp that the 500 km/h graph he's referencing as 'guaranteed' is way too optimistic.

You don't have to explain it to me, it is in black and white what Mtt says.

Being an experienced pilot, multiple aircraft owner, and having graduated college with a degree in Aeronautical Science, I can decide for myself what is optimistic and what is not.

Thanks! I don't feel the need to convince you one way or the other about it either. You can also decide for yourself. I would suggest using some scientific method or at least aviation industry standards when doing it.