Misha034,

I mounted both batteries and the ignition modual on platforms inside the cowling, as far forward as possible and added a heavy hub. Total weight 15 lbs 15 oz. It was flyable at cg of 135mm but touchy. Could have adjusted controls for more down trim and flown it that way with more negative expo. I just don't like them that touchy in pitch. At 120mm cg it flys good for me and has plenty of elevator authority to three point at slow speed, but does not snap out of tight turns etc. I completely rebuilt gear mounts and angled forward a little, but not noticable. I fly off a grass field and no tendency to nose over. A cg of 130mm should work for the maiden then adjust later to suit yourself. It will fly at 130mm.

DO NOT ATTEMPT TO FLY AT 140MM OR FURTHER BACK ON MAIDEN. Please. I'd hate to see you loose the plane.

Mine was balanced upside down, gear up, gas tank empty.