RE: CA hinges VS pinned hinges
True story.
Last winter I built two Kadet kits. I modified both to have barn door ailerons. On one (my wife's) I installed hinge points. On the other (my Brother's) I installed CA hinges. Don't ask why, it's just what I did. I've never had a CA hinge fail either. After about 10 or so flights, his hinges fell apart. I didn't even know that CA hinges were actually a plastic piece with fiber around them. The fiber part that is on the outside (that actually absorbs the glue and bonds with the wood) was still glued securely to the wood on the TE of the wing. The smooth plastic inside part of the hinge was sticking out of the aileron. This occured on all of the hinges at once. Actually, one broke loose first, no doubt, which set in motion a chain reaction in which they all gave way. The plane was crashed and rebuilt. I wish I had pictures, and maybe my Dad or Brother do.
I guess I always assumed that the hinges were just fiber all the way through. Must have been a bad batch of hinges where the fiber didn't get securely attached to the plastic inside structure.
I will continue to use CA hinges, no doubt, but not on anything big anymore.
JMO