Clecoed Vertical Stabalizer skin to frame. Completed riveting of skin. Added rear spar to complete Vertical Stabalizer. Dimpled rudder stiffeners and both skins. Primed stiffeners and both skins - ready for riveting. Began construction of rudder skeleton. Fabricated lower shim and clecoed and drilled rudder horn and reinforcement plates to spar. Fluted top ribs and clecoed in top ribs and counterbalance skin. Drilled all holes. Ready to attach rudder skins.