Long Distance Paper Glider

can fly quite long, but cant make sure it go straight.
need to use heavy and harder paper

improvement
1) fold the side of the wing up - can hold the wind more strong
2) cut small part at the end of the wing - can balance the weight between the head and the end

improvement
1) fold the side of the wing up - can hold the wind more strong
2) cut small part at the end of the wing - can balance the weight between the head and the end
3) the middle end wing can make sure the airplane go more straight