The Tambor class of fleet submarines were the first submarines in the US navy to serve fully in their "fleet submarine" role. They could effectively work with the main battle group (carriers and battleships screened by destroyers and cruisers) and scout ahead and torpedo enemy ships.

The problem was, this ideology proved obsolete in the pacific war. Despite this, the Tambor class were still somewhat revolutionary and extremely successful.
One of them, the USS Tautog, is credited with sinking 26 different vessels, the most of any US Navy ship, as well as aiding to shoot down bombers during the Pearl Harbor attack.

The Tambor design was later emulated in the more well known Gato, Balao, and Tench classes, with the only major difference between Tambor and Gato being the separated engine room of Gato.
Unlike the gato class, Tambors were all withdrawn from service by 1946, and none were modernized, although 3 were converted into training ships in the 1950s. None survived to today.

Full interior build.

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