I know there's been a million questions about CG, but humor me with another if you would. I have a 71" J-3 that was given to me crashed, I have resurected it and test flown it and it was nose heavy as crap!! I did balanced it rather hastily, but I did it as I have many other models, I took 1/3 of the wing chord, which as usual, happened to be right on the spar, and balanced the plane just aft of this. I'm not sure what brand of Arf it is, but it looks very similar to the Aeromax cub, both have about 71 1/2" wing with about 10" chord. When I researched the CG for the Aeromax Cub, it says 4.5" from LE. That is almost half the wing chord, none of my other Cubs are balanced that far back. If 4.5" is correct for the Aeromax, and the plane I have needs a similar balance point, then I was almost a full inch nose heavy on the CG. I moved the rx back to the aft of the cabin and made an access panel under the tail section of the fuse to enable moving the battery pack as far back as physically possible. The pack weighs 4oz and is now sitting right under the front edge of the vertical stab. I still had to add 3 1/2 oz of weight under the tail to get the CG at 4.5". I haven't been able to fly it again yet, hopefully this Saturday will cooperate. So now for my questions:
Does anyone here have the Areomax Cub or another cub with similar wing dimensions and is your CG in a similar spot?
If so, how much weight if any did you have to put on the tail to get your Cg there?