has been importing the German MTU 396 SE85 diesel engines for nearly a decade.
These engines are used to power submarines, specifically the 039A ("Song")
class. These 2,000 ton boats are similar to the Russian Kilo class, and are the
first modern diesel-electric boats designed and built in China. Nine have been
launched and a tenth is under construction. But that only accounts for 30 of
the 396 SE85 engines. China has at least a dozen more of those engines, and
it's unclear what they are using them for. They might be backup engines for
nuclear subs, or for a new class of diesel electric boats. The 039A class had a
lot of teething problems, but the Chinese are acquiring lots of valuable
experience. And there's a lot of curiosity what the Chinese are doing with all
the expensive experience.