17 steps. Design © Nick Robinson. www.origami.me.uk
Take a sheet of A4 (or letter) size paper and fold the top corners to meet the center line.
Fold the top side edges to meet the center line and unfold.
Fold the side corners, making the side edges meet the creases you’ve just made.
Fold the top side edges to meet the center line.
Fold the top side edges to meet the center line again and unfold.
Turn the item over.
Fold the top part downward.
Fold the tip upward, making it meet the bottom corner of the central triangle.
Fold the item in half sideways.
Fold the left top corner downward and unfold.
Unfold the item.
Fold the item in half again, folding the central part inward along the creases you’ve made.
Fold the first wing, bringing together the top right edge and the left edge.
Fold the second wing the same way.
Unfold the plane.
The Locked is complete! Launch it into the sky!