> Yes, I knew this would sound a little complicated with swept,delta,body wing > aircraft. But making it the nose really just puts the decision on to the 3D > Modeler where to some degree the flight model designer could have a better > idea. Isn't there some way of deriving an average or nominal c.g. that we > could just lock in as the fixed point?
I don't really think that the CG (or anything like it) should have anything to do with a common reference point. I think it should be something you can readily see. The nose/prop hub tip is about as unambiguous as it gets. Due to the nature of defining the flight dynamic model, and the nature of defining the 3D model - both people will know where nose/prop hub are located. A question: is all the rotational/translation stuff figured out so that if a pilot eyepoint is defined that the view will be properly rendered with that in mind - even when the CG is askew because of fuel burnoff? Jon
smime.p7s
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