I had enjoyed working with the garage door open a few days prior, with temps in the 70's. Today it's back in the 90's, so the door is closed and I sweat. Productive day regardless.
Clecoed the rudder skins to the frame. Had binding issues along the trailing edge until I slipped in R-916 . This piece has a triangular section that fits between the two trailing edges for its entire length. Once it was in, no more binding. Match drilled all the skin holes to the frame.
Next was match drilling R-918 to the bottoms of the skins. Both pieces must be fabricated, but they are flat and easy. They are not pre-punched, and must be clamped to the skins and drilled out. Clamp, match drill, cleco, repeat.
Finished the drilling with R-710 rudder horn brace. It's the piece in pic 3 with the large hole in it. It must first be trimmed to fit. Recommend a band saw or equivalent. Avoid using snips for this. It has pre-punched #30 holes in its forward and rear flanges that correspond to holes in the rudder horn and bottom rib R-904. The vertical flanges on 710 lie well outside the width of R-704. I was wondering how it was going to fit when Construction Supervisor Gary suggested squeezing the flanges. Worked like a charm. Probably best to debur the trimmed edges first to avoid any scratching. I have a tungsten bucking bar that is small, but not looking forward to bucking the skin rivets through the hole.
