 The ribs have been placed in their approximate positions on the spar. |
 Clamps hold blocks of wood in place while the epoxy sets up. |
 Clamps and a threaded rod are used to align and hold the ribs in place. |
 Nice job of alignment! |
 Before all of the ribs were set with epoxy, I needed to make one rib a reference point. It had to be aligned with the spar and level. It also had to be square with the reference line on the spar. I ran a piece of angle aluminum through the spar and attached it to the center line of the rib. This gave me a straight rib that was easy to level. This was also done to the first rib on the left side of the wing. Both ribs had to be square and level. This process took quite a few days. |
 Trailing edges being lined up. |
 I devised a tool to check alignment. I also found it necessary to support the ribs from below. |
 It was relatively easy to align the center section ribs. They are all the same size and are in line with each other. Not so for the outside wing panel. Each of the outside wing panel ribs is smaller then it's inboard neighbor. There is also a small sweep back on the wing. I first set the outside rib, then used string (poor man's laser) to set the sweep angle. A plum bob moved up and down the length of the string helped position each of the ribs. String on the leading and trailing edges helped to define the position of each rib and defined level for them all. |
 The right side is done. I only took a month! |
| Click on any photo to see an expanded version. | ||