Glassing to reinforce isn't all that good, as John pointed out, using some thin ply is much stronger. In the photos the first shot in my very old Kaos back in 04 after the fuel soaked wood let go. There was no outside wood left at all up front that wasn't oil soaked so I used some very thick balsa on the outside, it was I think 1/4 inch?? I didn't care about how it looked. At this point I had a YS 1.10 installed, I used a lot of different engines over the years in that plane. I used 1/32 ply on the inside as a doubler. Then last year I gave it the fourth covering job and was using an OS .91FS for power. Late last year I finally lost this old plane due to lack of altitude and an engine problem. The nose section of the plane didn't break off, well, it did but not in my repaired section anyway. After flying for about two decades it finally found it's expiration date.[&o]