How to make a traditional origami motorboat

(page 9)

15th picture of traditional origami motorboat

15.

Fully open the pocket.

Prepare to rotate the origami motorboat model by 180 degrees while still holding the model by two hands.

16th picture of traditional origami motorboat

16.

Rotate the origami motorboat model by 180 degrees.

Prepare to squash the region encircled with dotted circle with your thumbs.