Dart launcher

First, fold an ordinary paper plane (preferably with cardboard, advertising paper is also acceptable), then cut a small triangle about two centimeters behind the tip (depending on the size of the plane), with one vertex of the triangle slightly inward ... and then hang it on your hand with a rubber band, and you can fly with a small plane.

classify

In the application of self-defense in ancient China, China has three kinds of darts.

The first one is willow-shaped, and his technique is roughly the same as flying knife, with 90-degree direct flight, 180-degree spiral flight, 360-degree spiral flight and so on.

The second kind is a dart with ears behind it, also called an ear dart.

The third kind of darts, as shown in figure 1, are called meteor darts, cross darts, four-star darts, square darts and blood moon darts in China, that is, Japanese shuriken Ninja darts.