Translations:KAVAN DARA A1 (F1H) 1200mm - Instruction manual/12/en

From KAVAN RC Wiki

Pin down the pre-shaped balsa leading edge 2 and the trailing edge 3 now featuring all those beautiful notches. Glue the balsa ribs 1 in place. Fit, cut to size and glue the bottom balsa sheeting 4 between the leading and trailing edge. Glue the balsa root rib 5 along the edge of the sheeting – the bevelled side towards the root of the wing half (Det. F–F). Glue the rib 6 about 2 mm inset along the outer edge of the central sheeting. Glue the wing main spar 7 (3×8 mm spruce stick) into the notches in the upper side of ribs. Fit and glue the upper central sheeting 8 and 9 (Det. B–B) in place. Glue the gussets 42 in place. Apply some additional glue to all joints if necessary and let cure. Now you can assemble the other half of the wing in the same way. Just remember you are building left and right halves, not two lefts or rights.