Step 20: Using the piece of paper you cut off in step 7
Step 21: Cut the paper in half along the vertical crease line
Step 22: Using one part of the paper, fold it in half vertically, bringing the bottom up to the top
Step 23: Turn the wings of the plane so they look like this. Slide the new piece of paper into the wings (you may need to slightly unfold the wings to make this easier)
Step 24: Keep sliding!
Step 25: Slide the tail until it reaches the front of the wings
Step 26: Fold the Pteroplane’s wing and tail downwards so the tail is folded in half horizontally
Step 27: Turn the Pteroplane over
Step 28: Repeat step 27 with the other wing, folding the wing and tail downwards so the two sides are level
Step 29: Turn the Pteroplane over and the underneath should look like this
Your Pteroplane is complete! What daring stunts will it perform? How fast and far will it fly?