Installed two rudder hinges per the plan to the rudder post. Pop rivet the upper and lower channel bracing to the post and arc of the rudder. Install the center brace by drilling and installing a small brass wood screw through the rudder post into the wood dowell inside the center brace. Cut and form a gusset around the arc and rivet it to the center brace. Cut and form a gusset around the rudder post and rivet it the center brace. Drill and mount the rudder horn on the center brace next to the rudder post per the plans.