Originally Posted by Norman Adlam
Just thought I'd correct this (in case other read it).
My JPower AMX manual shows the CG to be 65-70mm
from the front leading edge (where the wings join the fuz).
This thread is for the 50mm fanned AMX. Are you sure your manual is for the 50mm version (they do make a 64mm fanned version).
Here is a pic of my manual for my 50mm and it clearly states 36mm. I've been flying it at that CG and it flies fine. I don't know how you could get a battery shoved far enough back to get it to 65-70mm...