Fold the paper in half along its length and then in half along its width. After making these folds, unfold the paper. Fold the paper along its width again as shown in the sixth photo. Cut (or tear) the paper along the length half crease as shown in the seventh photograph and select one of the two resulting halves for usage. Retain the other half that you do not use for the remainder of this step. This piece will become SS-1 in the step 4. (Pictures 1 to 7)



Once you have prepared the half you will be working with, begin by measuring 1.5 inches from edge of the paper along the length side and make a mark. Along the width edge of the paper, measure 1 inch from the same corner along the width and make a mark as pictured. After doing this, make a diagonal line between these marks and cut while both paper are aligned over top of one another. This should result in the papers being symmetrical about the taped center line. (Photographs 8 to 14)

Along the width, measure 0.25 inches back from the mark made previously and make another mark. Along the length, measure 0.375 inches. Fold down the paper so the crease connects these two marks and repeat on the other side. (Photographs 15 to 19)

Repeating the process, measure 0.5 inch back from the crease along the width and mark and measure 0.3125 inches from the crease along the length edge and make a mark. Once again, connect the new marks with a diagonal fold. (Photographs 20 to 24)

After completing the last fold, measure 0.3125 inches from the crease along the width and mark; then measure 0.5 inch down from the crease along the length and make a mark. Make another diagonal fold to connect these two marks and repeat on the other side. (Photographs 25 to 29)

After completing the last fold, measure 0.25 inches from the crease along the width and mark; then measure 1 inch down from the crease along the length and make a mark. Make a fold to connect these two marks and repeat on the other side. (Photographs 30 to 34)

After completing the last fold, mark a line and fold between the forward corner of the taped center edge to the wingtip without creasing the existing folds again. (Photographs 35 to 37)