Well, my attempt at reinforcing the bottom of the wingtip was a failure. The Coremat didn’t come with instructions, and apparently, it needs to be saturated with epoxy in order to work. I managed to pop the glass off and the Coremat released pretty easily from the inside surface of the wingtip. I tried saturating the Coremat and reinstalling it, but it took a shocking amount of epoxy. It would have easily weighed a couple of pounds, and I would need to do the same thing on the top and both surfaces of the other wingtip. This would be far too much weight to add to the plane just to stiffen up the wingtips.
Before calling it quits for the evening, I decided to apply some filler to the left side of the rudder. I mixed up the epoxy/microlight a little bit thinner tonight, so it should self-level somewhat which will make it easier to sand.
