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 to nuclear subs, the diesel powered vessels were nick-named PIG BOATS because it was like living under the hood of your car, sleeping/eating/living with the car's engine.
Nuclear Energy
Bigger, Deadlier, Faster, more Comfortable.1. Bigger, Faster, Deadlier, more Comfortable.
Bigger, Deadlier, Faster, more Comfortable.
They conatined brasAns 2 - The biggest single difference in modern day submarines is the nuclear propulsion system. This allows much greater length of cruises and far more versatility in general.
The early SS and the newer GATO Class diesel submarines.
The answer is ASDIC
Revolution
Only a few British submarines were involved landing advance recconnaisance soldiers during the early days of June 1944.
There are different answers to that but the most common one is that the USN had 288 submarines in WW2
Many early submarines were failures. However, as many countries in the world now own and even build submarines, we could reasonably call them a success.
Thomas jefferson or James Madison
You have to mostly think about it