今年3月末,日本海上自卫队最新一艘常规动力潜艇“苍龙”号服役。作为日本第一艘安装了斯特林发动机的AIP潜艇,它的水下潜航能力有了非常大的提高。同时,它还采用了X舵、非贯穿型潜望镜等多项新技术,被外界评为具有“亚核”能力的新型潜艇。1993年,日本开始建造亲潮级潜艇,与 By the end of March this year, Japan’s maritime Self-Defense Force latest regular submarine “Cang Long ” service. As Japan’s first A Sterling submarine installed Stirling engine, its underwater diving ability has been greatly improved. At the same time, it also adopted a number of new technologies such as the X-helm and the non-penetrating periscope, and was externally rated as a new type of submarine capable of “sub-nuclear” capability. In 1993, Japan started to build the pro-level submarines, with