Not the first try, but the first successful try.
By: Bradley Threatt
Impact On Society
-Before the Submarine was invented the military of other countries and ours would try and find a way not to be detected when wanting to sink a ship.
How do the engines breathe in diesel submarines?
A diesel submarine is a very good example of a hybrid vehicle. Most diesel subs have two or more diesel engines. The diesels can run propellers or they can run generators that recharge a very large battery bank. They can also work in combination, one engine driving a propeller and the other driving a generator.