I got all the HS rear spar parts ready to be riveted together. I wet-sanded the spar strips to a smooth 600 grit finish. I finished the edges of the spar swebs. I painted everything with SEM self-etching rattle can primer for a modicum of corrosion resistence. After priming the spar strips, I realized I forgot to drill the center bearing holes for AN3 bolts and countersink 4 of the rivet holes. I temporarily reassembled the spar, drilled out the bearing holes, coutersunk the rivet holes and touched up the primer.
Should be able to rivet the HS spar together next time.
