Step 11: Turn the paper over
Step 12: Fold the right side over to meet the left side, creasing down the centre vertical line
Step 13: Your paper should now look like this
Step 14: Fold the top layer of paper upwards and towards the right side, creasing where indicated in blue
Step 15: Your plane should now look like this
Step 16: Turn the plane over
Step 17: Repeat step 14 by folding the top layer of paper upwards and towards the left side, creasing where indicated in blue
Step 18: Your plane should now look like this
Step 19: Slightly unfold the wings of your plane – this is the underneath view
Step 20: Turn your plane over and grip the centre section between your thumb and fingers and your Nakamura Lock plane is ready to fly!