Grumpy /Tetsa!

Sorry to hear about the CG trouble. Could either of you rig up a digital scale under the tail to tell us what the weight forward of balance point needs to be regardless of powerplant? ie. with just the spinner, prop, wing, fuse, sierra landing gear, and molded control surfaces installed - no servos or other bits and pieces...just a dry fit. Would help a lot... my goal is to configure a gas engine, silencer, live exhaust setup, maybe even water cooled to get useful weight under the cowl. Not going to have to worry about noise where I fly. My guess is the light engine and the fuse installed silencer isn't helping things much, Tetsa.... Question is...how much weight does the airframe really need?