Toss It! Speed Challenge _ Paper plane : the unthrown one

Step 7 Finish the tail flaps

Put the plane on "its side" (first pic) and cut with a sharp knif or use scisors (2nd pic). The cut goes on the body, i.e the fold you catch with your finger to throw the plane, at the rear (3rd pic).

Then return the plane, and reverse the back of the body where you just cutted, so that it become over the plane like a vertical flap on real plane (arg... so hard to make myself understandable) see 4th pic