One. material

Ordinary A4 paper 1 sheet.

Second, the origami process

1. Place A4 paper vertically on the desktop. By default, the top and bottom sides are short sides and the left and right sides are long sides. First, fold the aircraft structure, take the upper left corner as the center, fold the upper edge to the left line, and unfold it. Then, take the upper right corner as the center, fold the upper edge to the right line, and expand it to obtain two intersecting diagonals.

2. Fold the upper right corner, fold the long side on the right to the diagonal crease (without unfolding), then fold the upper left corner and fold the long side on the left to the diagonal crease. Here, it looks like an isosceles trapezoid with a long waist

3. Fold down the top and bottom of the trapezoid with the intersection of diagonal creases as the center to obtain an isosceles trapezoid with a short waist. Then fold the left obtuse angle of the trapezoid inward until it is folded in half to the symmetry axis of the isosceles trapezoid, and repeat on the right side. Get a sharp head here, and then fold the extra piece below.

4. Next, the airplane model should be folded. First of all, the origami should be turned over, with the sharp corner as the center and folded in half along the central axis, and the aircraft head and fuselage will be revealed. Then fold some paper on both sides to make wings. It is best to cover the folded wing part on the fuselage, and then scrape the tail wings of both wings by hand, so that the tail wings can be knocked up without creases to ensure that it can feel the air flow. The paper plane is finished.