Alan King writes
> You do a 20 foot long plane FDM, with CG at 10 feet. I draw a
3000 foot long plane. The noses match. Does about 2980 feet of my plane sink into the ground? What makes sure that the CG is put at the right place in the visual model with the nose as the only reference? Does FG just scale the total model, the FDM also gave a length for the model, and FG assumes the visual model has the wing in the right place?It makes no difference if you make the model 1000 miles long or just one
foot.
All the model is is 10000 vertices flying in close formation and the vertices have
no mass so the model has no mass so no CofG to work through.
The 3D model is like a dog on a lead it can only go were you let it go.
And what controls the 3D model dog the FDM and it does not care if the
dog is attached at the head the tail or by a leg.
Cheers Innis The Mad Aussi
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