Riveted trim tab horns to t.t. skin. Wiped roughened areas with MEK, then riveted t.t. spar to bottom skin. Longeron yoke used to get solid rivets on the bottom. Put the foam ribs in temporarily and clecoed up the top skin to spar to hinge, and put clecos into the end flaps. Looks pretty straight, but won't pro-seal the foam ribs until I can do rudder and elevator TEs all at once.
