That should not be necessary. The aircraft configuration file only needs
to be consistent within itself. The structural frame is used for the
location of engines, landing gear, empty-weight CG, etc.  There is also
a point called the visial reference point (typically the nose of the
aircraft) that is defined as a known reference point for the 3D modeler.
The 3D model need not have any particular coordinate frame origin, to
the best of my recollection, though there is an offset that is specified
in another file (the -set file?).

The point is, do NOT change the aircraft configuration file in order to
place the aircraft in the scene properly.

Jon


> I noticed the 737's wheels were "floating" above the ground 
> and decided to tweak it. In the process, I discovered that 
> the gear, engines, CG, etc were all defined to be about 9 
> meters behind the 3D model.
> 
> The linked patch adds a 9.04 meter offset on X in 
> Models/737-300.xml and adds contact points at the tail, 
> belly, nose, engines and wingtips in 737.xml.
> 
> This model is in the base distribution package so please 
> check my work :)
> 
> Patch courtesy of fg_submit:
> http://139.78.95.188/flightgear/737-300/
> 
> 
> --
> Reagan Thomas

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