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The world's first atomic powered submarine was the USS Nautilus.
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.
Diesel topside; electric motor submerged.
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.
The first nuclear powered submarine was the USS Nautilus.
The USS Nautilus (SSN-571) was the world's first operational nuclear-powered submarine.
INS- Arihant (first indigenous nuclear powered submarine),, INS- chakra (first nuclear submarine).
President Carter served as a Lt. Commander aboard a nuclear powered submarine, and qualified as a commander of a diesel powered submarine.In 1943 Carter was admitted to the United States Naval Academy. Upon graduation in 1946, he began his career in the submarine fleet serving until 1952. Promoted to a LTJG, he completed qualification for command of a diesel-electric submarine. In late 1952, he was admitted to the US Navy's fledgling nuclear submarine program led by then-Captain Hyman G. Rickover.
diesel
The first nuclear powered submarine was the U.S. Navy's USS Nautilus, SSN-571. A link is provided.
USS Nautilus
USS Nautilus (SSN-571)