How to fold the paper airplane

First, you should take a piece of paper, A1 size and turn it uprightand begin by creasing it along the middle.
Second, fold and unfold the top triangles.
Third, fold down the top along a line marked by the end of the creased.
Fourth, fold the two upper triangles in half so as to bisect them.
Fifth, fold the upper large triangle up into the middle of the sheet and fold down both wings.
Finally, carefully open up the paper airplane, launch,hold near the back, underneath, and don't try to fly the work too quickly