USS Puffer (SS-268) holds the record for being submerged longer than any American submarine during World War 2. The incident took place on October 9, 1943 during Puffer's first war patrol. While attacking a Japanese tanker, the submarine was counter-attacked by the ship's escort, forcing the submarine deep to evade. The escort, however, did not relent and, joined later by a second escort, prevented Puffer from surfacing for over 37 hours.
24 hours
USS Shark
it wass Germany i pretty sure but i cloud be wrong but take my word for it. __ When the war started in 1914, England had the largest submarine fleet in the world.
USS Sea Devil
uss narwhal
Diesel topside; electric motor submerged.
24 hours
Underseaboats.
Underseaboat.
Underseaboat.
World War II submarines were powered by large electric motors. On the surface, the motors drew their power from diesel generators, not unlike how a diesel locomotive operates today. When submerged, the diesel engines could not be operated, and the motors drew their power from huge banks of electric batteries. After the batteries were drained of their power, the submarine would have to surface in order to run its diesel generators to provide propulsion and electric power to the submarine. During this period, the sub's batteries were recharged. Toward the end of World War II the submarine snorkel was invented, which gave a submarine the capability of running its diesel engines while submerged. The submarine was required to stay relatively close to the surface, but it was fully submerged with the exception of the snorkel mast. Nuclear powered submarines also have banks of electric batteries, but they are only used when the main propulsion plant and/or its steam-powered electric generators are disabled. When a nuclear-powered submarine's batteries are fully drained, they are recharged by the boat's diesel generator if its steam-powered electric generators are not available, or by the steam-powered electric generators when they becomes available. Just like a diesel-electric submarine, a nuclear-powered submarine must operate its diesel generator on or near the ocean's surface.
U-boats
World War II submarines were powered by large electric motors. On the surface, the motors drew their power from diesel generators, not unlike how a diesel locomotive operates today. When submerged, the diesel engines could not be operated, and the motors drew their power from huge banks of electric batteries. After the batteries were drained of their power, the submarine would have to surface in order to run its diesel generators to provide propulsion and electric power to the submarine. During this period, the sub's batteries were recharged. Toward the end of World War II the submarine snorkel was invented, which gave a submarine the capability of running its diesel engines while submerged. The submarine was required to stay relatively close to the surface, but it was fully submerged with the exception of the snorkel mast. Nuclear powered submarines also have banks of electric batteries, but they are only used when the main propulsion plant and/or its steam-powered electric generators are disabled. When a nuclear-powered submarine's batteries are fully drained, they are recharged by the boat's diesel generator if its steam-powered electric generators are not available, or by the steam-powered electric generators when they becomes available. Just like a diesel-electric submarine, a nuclear-powered submarine must operate its diesel generator on or near the ocean's surface.
There are a couple of ways. They can deploy an antenna with the periscope. And I believe there are low frequency radio communications that they can use completely submerged with some limitations.
i think it is ben Davis
USS Shark
Britain, USA, Germany and Italy used submarines during WW1