I finished doing a loose fitup check of the main spar, ribs and rear spar. I wanted to convince myself that

everything was going to fit together nicely before I started drilling holes and doing other things that could not be

undone. The ribs were drilled and clecoed to the main spar, but the rear spar was held on with cleco clamps and supported with 80/20 framing. The first pic is a shot of the right wing. The left wing was similarly setup.

To make sure that the front and rear spars were straight I drew reference lines on the front and rear spars and used

orange fishing line to to verify everything stays true. While I have access to all sorts of fancy measuring tools  sometimes all that is needed is a piece of fishing line.. The second and third pics show the string line.