Make sure that the opposite corners match up to each other perfectly, so that each side is exactly the same.
Once folded, these two corners should meet each other at the center crease but not cross it. Keep these corners folded in. The point made at the top of your paper by these corners being folded down will eventually form the front of your dart paper airplane.
These folds basically make your top point skinnier (and stronger) and the outer edges longer (from about 5 inches long to about 10 inches long). Remember to keep the edges lined up with the center crease but don’t go over it. You are going to refold the paper airplane along this fold again, so you need to have symmetrical folds on both sides for proper balance.
Have either of the sides facing up. It doesn’t matter which one because you will do the same steps to both sides.
Repeat this same process on the other side as well.
Your finished airplane should be about 12 inches long and 4 inches wide at the widest point of the wings.
If your airplane has problems flying, experiment with changing its weight distribution. Attach a small paper clip to the bottom crease, pointing up toward the wings. Try positioning it in different locations up and down the center crease to determine where the weight helps the most.
Remember to make a crease along this fold.
These folds may be hard to make, as they will result in really skinny long wings, but will create a very fast and straight flying paper airplane.
Do not go all the way across and don’t start from the very tip. Start where the corners of the tape stay within the wings. The tape is simply there to keep the wings together.
