I forgot to mention that because of this aircraft's design, it is easy to make it very tail heavy, it will then require a lot of nose weight to balance. The CG is right on the spar. Spend a lot of time selecting lighter materials for everything aft of of the CG, even in the wing. The nacelles and horizontal stabilizer are key areas to focus on. You have to design lighter airframes initially, removing weight afterwards is extremely frustrating! I used a carbon fiber tube in the leading edge of the horr. stab, plus I used lighter balsa. My stab was ~2oz lighter than the original one. I figured an ounce saved in the tail was about 3 oz less nose weight needed. Like many projects, there are challenges, but this is one plane that makes a good pilot look like a great pilot!
