Modern self propelled gun

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At present, all types of towed artillery have the corresponding self-propelled artillery, self-propelled artillery has three defense capabilities, and can quickly put into or withdraw from combat, has a higher tactical and firepower mobility, and these are beyond the reach of towed artillery. In modern war, it is very difficult for a tank to complete its combat mission if it is blocked by the enemy without the firepower support of artillery. In this case, self-propelled gun has obvious advantages. It not only has good cross-country performance, but also can effectively cooperate with tanks and mechanized forces. They can also destroy enemy tanks with their own powerful firepower. In addition, self-propelled anti-aircraft guns can also be used to deal with low altitude attacks of enemy aircraft, and can effectively protect tanks and mechanized forces. Self propelled artillery can greatly shorten the conversion time between March and battle, so that it can be put into fierce battle at any time. It only takes one minute before and after. The 155mm self-propelled cannon developed in the early 1990s in China has an muzzle velocity of 897m per second, a maximum range of 39000m and a barrel length of 45 times the caliber when firing long-range full bore howitzers. Its maximum speed is 40-45 km / h on the road and 30-35 km / h on the dirt road. The maximum travel distance is 450 km. The vehicle can pass through a vertical wall 700 mm high and cross a trench 2700 mm wide.