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历史背景四十年代,美国陆军开始研制203毫米自行榴弹炮,把当时的M2型203毫米牵引式榴弹炮的炮架去掉,安装到改进型的M4式坦克底盘上,定为M43型203毫米自行榴弹炮。到50年代,经过一些改进,在1956年定为M55型203毫米自行榴弹炮。到六十年代,在1961年美国陆军定型为制武装备的M110型203毫米自行榴弹炮,则是采用了专门设计的底盘,但炮身仍是1920年设计的产品,上架和反后坐装置是1930年的产品。所以该炮在可靠性方面存在着许多问题,而且射程和威力也都不如苏联的新炮。为此,美国陆军于1969年12月决定,对现装备的M110型
Historical Background In the 1940s, the United States Army began to develop 203 mm self-propelled howitzers and removed the then-existing M2 203-mm towed howitzers from the mothod. The M43 203 mm self-propelled howitzer was mounted on the modified M4 tank chassis. By the 1950s, with some improvements, in 1956, the M55-type 203mm self-propelled howitzer was set. By the 1960s, the M110-type 203mm self-propelled howitzer, which the United States Army formalized as a military weapon in 1961, used a specially designed chassis, but the cannonball was still designed in 1920, with the shelves and anti-recoil devices being 1930 Years of product. So the gun has many problems in terms of reliability, and its range and power are not as good as the new Soviet guns. To this end, the United States Army in December 1969 decided on the current equipment M110