What id dry weight? Is it the plane without any electronics or the plane with everything but the battery? I built a simple cub and painted it but could not get it to fly. I think it wouldn't fly because it was twice as heavy all up as the recommended spec. I know part of the problem was that I use Elmer's foam board and mounted the servos too far back so it was severely tail heavy. To get the CG right I had to add a huge lead weight to the nose and I think it was too much. Now I am building a second simple cub and was thinking that if I needed to I could drill some holes in the tail to lighten it up (like the video where Peter and Josh drilled the crap out of a plane until it wouldn't fly). Before I drill I would like to have an idea about how much the plane should weigh without electronics.