when on the ground the aircraft slides around and bounces
Check your manual - 2.2 FLIGHT MODELS PER FRAME.
this is most likely a problem due to your “flight models per frame” settings. As SF27 already pointed out, this is described in chapter 2.2 of the manual.
This should be an easy fix just by upping your flight models per frame settings.
fraxy from XFER Design
I have a other question:
Will the occasion of the Triebwerk sound be changed or will it stay that way for the time being?