Made a lot of progress today. With Cathy's help, we reinforced all but the last three inboard ribs. This is a pretty bid deal, because that means that I'm just about done with the structural construction of the left wing. I'm not sure, but I can just bet that, with exception of finishing and paint, the wings are the most labor intensive parts of the major construction. Not that I'm done yet, not by any means, but its significant progress.