Martinghaz,the CG is 8.5"-9.5" from the leading edge of top wing,this put's it rite behind the rear cabane.i did mine with the wings on.my stand off's are 2" long that put's the carb needles just in front of fire wall with a da50.thats as long as you can go, and still get your cowl to cover the lower half of fuse.i have a 2500 mah five cell on top of fuel tank for ign. and 2500 five cell next to the rudder servo fo rx. plane flies hands off inverterted.
da50 & slimline pitts
17.0 lbs.