Riveted right skin on minus trailing edge. The 4 inch yoke worked great to reach past the skin overhang that will be rolled later to make the rudder leading edge (seen in pic 2). Sarah and I made quick work riveting the skin to the spar - she placed the rivet, I squeezed it. Tip - Pic 3 shows a difficult reach for 4 rivets each side where the shop head is difficult to form inside the horn brace. Van's gives the option of blind CS4-4 rivets, but that requires drilling to #30, then trying to dimple to a larger size - about impossible. I tried to find various bucking bars that would reach and stay 'sure-footed', but that failed. I finally played with the longeron yoke - it just fit, and could reach all 4 rivets. So, AD426-3-4's went in, and were squeezed in seconds.
