The infamous K-159 shortly before sinking
http://makettinfo.hu/forum/upload_20...75.1_K-159.jpg
http://www.mod.uk/NR/rdonlyres/85AD4.../0/k159_32.jpg
The four rusted tanks were floaters needed to keep the boat from sinking. One of them ruptured (or broke free) during a transfer dooming the vessel and its crew.
Look at the state of the outer skin! How could the Russian navvy let this giant piece of rust
containaing two fully fueled nuclear reactors stay in the water and rot for years!
Not to mention the skeleton crew attending to the boat. I can only imagine the dreadful conditions aboard this wreck.