Dick,
Below are just some of your "interesting" statements posted earlier in this thread:
"if the plane is light enough -CG does not matter
If it is too heavy -it still does not matter."
1. A plane can be done at ZERO weight -
Rubber inflated aircraft -man carrying were once considered as a possible emergency vehicle.
Theoritically one could do a powered airplane which was simply ZERO weight - not lighter than air - just at ZERO weight -
---If it is way too far forward - -just hold a a fair bit of UP and if it is toooo far forward - it never takes off - so that problem is resolved----
Honestly, I don't know whether you were kidding or just shooting at all directions in order to get some hits…