Thanks a lot Rudolf.
I agree with what you say, but the fact is that I normally set the flaps in takeoff position (eg. 1-2 notches) and obviously the airbrake is not active, so I expect to get maximum acceleration...
If you have tested the flight and the takeoff happens correctly, I would ask you to set the starting attitude as you think is correct and then attach the FLT file (in .txt mode), so that I can compare with mine and test it in turn (and understand if perhaps it depends by a malfunction of my Thrustmaster 16000).
Thanks, Steve.