RE: Kaos 25 Build (Full Plans Added)
Hi Jim,
Since the ribs taper from root to tip, I build the wing upside down, making sure the ribs are at 90 degrees. When you glue the wings together (again, upside down) both root ribs are flush, the top of the wing ends up flat and the bottom of the wing has a "dihedral" as it tapers up from root to tip. Bridi built his original Kaos this way as well.