First step laying out all parts, removing part labels with thinner, relabelling with masking tape.Fabrication of brackets, some cutting and filing of angle stock.Really only one way everything can go together once you work out top/bottom and port/starboard.Went ahead and drilled out brackets to fit bushings, because you can’t do this with a press once they are fixed to the ribs and spar.Then a last check of the fit of ribs in the skins. Most skin holes are pre-drilled A4, and the end ribs and doublers A5.The orientation of the brackets is wrong on the drawing 75-AA-1. The nose rib flanges face towards the end of each flaperon, and the brackets face inwards. You can see this from the matching cutouts on the skins.Rib to spar faces have to be painted then ribs rivetted to spar. Typical corrosion paint then applied to ribs and skins before rivetting. Lots of hands help when bending the leading edge of the skin around the nose ribs.The L angle reinforcing the bottom of the control horn has to be added last – after the skins have been bent around the ribs. Clearance also dictates that vertical rivets are pulled before the horizontal ones when adding this part.Finished control horns.Wing tips drilled #40, then drilled out to #30 to fit A4 rivets. Fairly loose fit on these, unlike the wing slats.Splice plates are pre-drilled to provide washout with a greater angle of attack for inboard flaperon.Finished flaperon assemblies (aside from bushings in brackets which will go when rigging).Wrapped for storage until either painting or rigging to wings – packing material recycled from the crate.
