Begin making your rudder by separating it from the other vertical stabilizer. Then cut one of the two layers of paper where the rudder should be off (I usually cut off the left myself). After you've cut these boxes off, you may discard them. Then, after having cut out all of the fuselage. Begin folding it along the dotted lines. After you've folded all the lines correctly, you should now cut along the line in the middle of the fuselage. Do this by folding the fuselage to the right, making a cut, and repeating the fold to the left. Then tape your fuselage together at the front, back (against the vertical stabilizer) and across the counterweight fold. Then fold your vertical fin along the dotted line and cut along the solid line in the center of the fuselage and then unfold.