Kang Sunpo
Kangsunpo refers to a gun with a steel wire in a barrel. The same principle as the rifle is to add rotation to the shell by the steel wire in the barrel to stabilize the balloon line and increase the accuracy rate. Contrary to Kangsunpo, the cannon with smooth inner surface is called a riverbank. The ancestral cannons are mainly employed in cannons and guns. Mortars were used only in the past, but in order to improve the accuracy and accuracy of the long distance around Daegu Gyppo, a filament is being used. In the tank fleet, the use of APFSDS charcoal, which is the main anti-tank gun, is mostly adopted. This is because the energy is wasted by the friction force at the same time as the leakage of the emission gas from the gap between the body and the steel wire when raising the kinetic energy given to the armor, and the rotation hinders the penetration of the APFSDS carbon. Also, in the case of using HEAT charcoal, like the APFSDS charcoal, the molded metal jets can not concentrate forward by the centrifugal force due to the rotation, so that the use of the filament can be avoided.