While subs today aren't unusual, they were pretty strange for a few hundred years, and not every sub design ... via the ...

The Submarine Thermal Reactor plant (STR Mark ... hoping to postpone the submarine problems until the Mark II design stage. An example was the discussion as to whether air conditioning should ...

Its design minimized magnetic signatures ... Yet, the Soviets and, later, Russians have much to be proud of. For example, the Russian submarine capability is one of the best in the world.