Norman Vine <[EMAIL PROTECTED]> said:
> > IMHO You need two (2) CG's. > > 1) the 'reference' < static > CG usually determined from manufacturer > specs or something similar for use in FGFS for reference purposes. > > 2) The 'actual' < dynamic > CG of the aircraft, as determined by vehicle > loading for use in the FDM > > Think of (1) above as the 'local origin' of the aircraft frame and think > geometry not gravity. Yes that is correct. If the positon and orientation data as published by the FDM's are based on a center of gravity that moves, then the models would move with it since the model origin is being positioned at the lon/lat/alt reported by the FDM. That said, I would suspect that movement in the center of gravity for a given aircraft would not affect the altitude reference very much (during flight and on the runway) and the tiny shift in lon/lat position would be hardly noticable. Best, Jim _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
