Thus, by doing the math, we can safely conclude that at least one Type 877EKM SSK (out of the eight remaining in service), one Scorpene SSK (out of four as of two days ago), one Class 209/Type 1500 SSK (out of four) and perhaps the Project 971 Shchuka-A SSGN (INS Chakra) are at sea on patrol at any given time.
Legacy CMS Architecture Of PLAN DDGs
Meanwhile, images (below) of the combat management system (CMS) suites of the latest guided-missile destroyers (DDG) operated by the PLA Navy prove that they are all derivates of the mid-1980s-era, Thomson-CSF-supplied TAVITAC CMS suite, three of which were sold by France to China in the mid-1980s.
