Weight of the World Models 80" Extra
Flew my WM 80" Extra today. It weighs 16lbs with a BME 44. Balanced right on the money, no extra weight required. Takes off at 1/2 throttle and goes vertical forever at 1/2 throttle. Engine is brand new so taking it easy with it. After trimming it flew great and flies inverted hands off, no down elevator required.