The Seawolf-class submarines were envisioned as the best submarines ever built.
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The submarines were designed to be true hunters, and as a result have eight torpedo tubes, double the number of earlier submarines. It has stores for up a combination of up to fifty Mark 48 heavyweight torpedoes, Sub-Harpoon antiship missiles, and Tomahawk missiles. Alternatively, it can substitute some of this ordnance for mines. The resulting submarine is according to the U.S. Navy ten times quieter over the full range of operating speeds than the Improved Los Angeles submarines, and an astonishing seventy times quieter than the original Los Angeles–class submarines. It can run quiet at twice the speed of previous boats.
The Seawolf-class submarines were envisioned as the best submarines ever built. Designed to succeed the Los Angeles–class attack submarines and maintain America’s edge in the underwater domain, the class suffered from cost overruns and the collapse of the Soviet Union. While still some of the best submarines ever built, they were built at reduced numbers. In many respects, they are the F-22 of submarines: widely considered the world’s best, but costs made wide their wide usage a major challenge.
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In the late 1980s, the U.S. Navy was faced with a crisis. In 1980, the Soviet Union had received information from the Walker family spy ring that the Navy could track its submarines through excessive propeller noise. As a result, the Soviet Union went looking for advanced Western machinery to make better propellers. In 1981, the Japanese company Toshiba sold propeller milling machinery—now relatively common nine-axis CNC milling machines—to the Soviet Union via the Norwegian Kongsberg corporation.
By the mid 1980s, the Soviet Union’s new machinery began to make itself felt. The new Akula-class submarines had a “steep drop in broadband acoustic noise profiles”. One government source told the Los Angeles Times, “the submarines started to get silent only after the Toshiba stuff went in.” On top of running silent, the Akula class could dive to depths of up to two thousand feet—while the U.S….