It seems possible that the Russians may have lent their expertise to the Chinese in terms of helping them develop an advanced ...

Designed with pump-jet propulsion and powered by OK-650 reactors, these subs enhance Russia's strategic submarine force. -If Russia continues to build more Borei-class submarines, its naval power ...

Advances include a compact and integrated hydrodynamically efficient hull for reduced broadband noise and the first ever use of pump-jet propulsion on a Russian nuclear submarine. The submarine ...