This view is of the bottom of the wing focussing on the rear spar and the flap and aileron bearings which are bolted to it. We mounted the aileron hinges onto the aileron spar by clamping them into place on the aileron spar. The other end of the hinge was previously bolted to the spherical aileron bearings inside each welded hinge mount, so it's position is mostly fixed. We can move the aileron (Or flap) up or down, left or right, but not in or out. The aileron seems to seems to be about 1/16�� thicker that the wing in places, so we averaged out the difference. From my experience in RC planes I know that making the ailerons thicker than the training edge they are attached to is an effective flutter-prevention strategy. I'm not saying this is intentional in the case of the Patrol, but it is working out well and I'm happy with it. Alternatively, I could have moved the control surfaces 1/16 of an inch closer to the rear spar by drilling the hinge holes closer to their bases, at the risk of running out of clearance. Also, we were not successful in mocking this up without the hinge points bolted together. As it is we have about 30 degrees of up aileron available and 40 down. However, the covering materials have yet to be applied, so that will reduce clearance. Required aileron range of motion is 20 degrees up and down. This will be established with mechanical stops, and until then, we want to make sure we have unimpressed range of motion beyond the limits. I think it's good, as I do not want that tight, ��pongy��feeling nearing the limit of travel. Mounting of left flap is next.