1 rig number 9 is the rib that has the aieleron belcrank attached to it. and this showe the reinforcement beking said belcrank
2 I used a small flexable ruler to stand in fore the wing skin, so as to assure that the support structure would be flush with the top of the rig against the inner surface of the skin. I will see how it works.
3 when constructing any support that has an axel thru it, one has to drill the holes identically, and secure them so they dont move in the process. This is how I did mine. no big deal, but for those who like pictures, here is one. Now I wasnt smart enough to take a picture after the support and belcrank was finished prior to installing onto rib 9. My process worked out just fine and the bell crank swings effortlessly and has no wobble or other play...perfect. according to the plans, at lease!