I've set up the jig that the wing will be built on. It's nothing fancy, it just ensures that the wing is straight. The centerline of the ribs will be equidistant from the board so that the ribs are perpendicular to the board and both spars converge towards the tip at the same angles to the ribs. I did this because the UFO wing has dihedral. With a Kaos I would set it up so the top spar is parallel to the board and the ribs perpendicular to it and the board, and let the bottom spar angle upward since it's "dihedral" comes from the thickness taper. I guess it doesn't really matter, but hey, it's fun to work all this stuff out.

I haven't glued anything yet. I'm using two slotted gauges to make sure the ribs are square and lined up over the plans since they are up off of the board. Come to think of it, this is the first swept-back R/C wing I've ever built. It's already looking pretty cool.