Trial fit the wing centre section and wing panels – if attached together the wing panel dihedral must be 90 mm (Det. E, measured at the leading edge). Apply a generous amount of glue to the wing centre section end ribs and wing panel root ribs and attach the wing panels to the wing centre section. Lay the wing centre section down on the building board; secure it with a couple of magazines wrapped in a plastic bag serving as a weight. Align the wing panels so their tips are 90 mm (at the leading edge) above the building board (you can use a couple of books or a wooden block). Let the glue cure thoroughly, and then sand the entire wing frame with fine sandpaper.
