CHOPPER DUDE, When balancing this plane make sure you add the weight as far forward as possible and not to use the big boxy area near the landing gear i almost made that mistake and the plane weighed a ton i started removing the weight that was above the landing gear,and thats exactly what it was weight nothing more,I ca'ed the stick on weights to the front engine mounting area it was fine after that. I also added a 13x4 apc prop to help slow it down on landings