Today's atomic powered subs can stay under water forever. They only surface to re-supply for the men (food and hygiene materials). Living on a modern atomic sub is like living in a small room. Prior...
Follow the link below to the "Friends of the Hunley" site, where there are excellent pictures of the Hunley's recovery and close up pictures of her in the preservation tank. Friends of the Hunley is...
The U.S. Navy's ALVIN (DSV-2), still owned by the Navy, is currently operated by the Woods Hole Oceanographic Institute, home of famed Oceanographer Dr. Robert Ballard, discoverer of the Titanic...
Depends on what class of Submarine you are talking about.
Balistic Submarines are a nuclear deturent that assures retaliation in the event of a country using nuclear weapons against one...