I fit the aileron bellcrank and hinge assembly then ran into a situation. The manual diagram shows some reinforcing brackets which mount inboard and outboard on the bellcrank attach angles. Either it was not in the plans or I missed it, but I found that details of this in the flap bellcrank attach instructions. This led me to the stock material (part #90 the 1x1 angle) to make 24 of the reinforcement angles. I measured 7/8ths and cut them and started drawing and drilling the rivet pattern to attach them.