Good Evening. I once had a Dragon Lady, but then sold it because I kept tripping over it on my garage floor. I still have the assembly manual. It shows a CG range of 3-3/8" to 4-1/8" back from the LE of the wing. The manual also says to start your test flights with the CG at 3-3/4" (the center of the CG range). Mine balanced out just about right with an O.S. 61 SF and a 4-channel Futaba radio. I wish I had used a more powerful engine in it-the plane seemed a tad underpowered and the engine maxed out at about 10K RPM with a 12x8 prop on it. Good luck.