Asian Games archery competition which two kinds of bows

What are the two types of bows for the Asian Games archery competition?

There are two types of bows for the Asian Games archery competition, the recurve bow, which competes at a distance of 70 meters, and the compound bow, which competes at a distance of 50 meters.

Recurve Bow

A recurve bow is a type of bow that looks different from a regular longbow from the side: a recurve bow that is not strung with the end of the bow arm bent outward. The difference between a recurve bow and a non-reverse bow in the broadest sense is whether or not the bow arm bends in the opposite direction after the bow is strung.

There is an argument to be made that the bowstring is in contact with the arm when the recurve is strung, but not all recurve bows are strung with the arm when they are strung in a traditional bow, so the string-on-arm criterion doesn't accurately differentiate between recurve bows. Nowadays, the term "recurve" is more narrowly used to refer to modern competitive recurve bows.

A recurve bow can store more energy than an equivalent bow with a straight arm, resulting in a higher kinetic energy of the shot. As a result, recurve bows can be built shorter than normal bows, yet maintain their power.

This advantage makes the recurve bow suitable for use in places where longer weapons would be inconvenient, such as jungles, forests, or on horseback. In contrast, the traditional, straighter longbow causes a "cascading" effect - the more the bow is drawn, the more significant the increase in force required to draw it.

Comparison of Differences

When a recurve bow is strung with the fingers, the bowstring rebounds faster than the finger that strings it, so the bowstring slides sideways along the finger, which causes the arrow to swing from side to side, but of course this happens in a split-second and cannot be seen without the aid of a high-speed camera.

And this side-slip cannot be overcome by practice, only by taking certain measures to minimize its effect when tuning the bow.

With a compound bow with a spreader, the bowstring always moves in a straight direction, and there is almost no side-to-side arrow movement, so the accuracy is naturally higher.

As for the conclusion that the recurve bow fires smoothly, the reason is more complicated, the general reason is:

The recurve bow has a longer blade, the relative deformation of the bow blade is very small, and its tension change is more regular, and in the practical draw distance, its tension is uniformly changing, while the tension of the composite bow has a drastic change in the tension due to the action of the pulley.