Air-Independent Propulsion

[peterloo]

I don't know why America don't develop its own AIP... Even Russia, which is relatively poor after her dissolution, got her AIP technology ready. It seems that America is relying on her sucking (noisy + expensive) Los Angels Class, which can be a huge DISADVANTAGE when she wants to use it in shallow seas. China might get one, by buying one Russian sub (just like Kilo)