This hull-form made the submarine sail more efficiently submerged than on the surface. The shape of the Thresher was a new evolution of a tear-shaped hull that was more hydrodynamic than those of World War II and Korea. The Thresher was built to be quieter than previous submarines by installing rubber washers between metal parts and fasteners to reduce the radiant noise of the submarine from metal on metal contact. The Thresher and her sisters were designed to dive deeper, run more silent, and detect that which cannot be seen. But when the Soviets began to field SSBs (Zulu V, Golf I, and Golf II), conventional submarines armed with a few nuclear ballistic missiles, at the end of the 1950s, the need for a hunter-killer was ever that important. The concept of the hunter-killer was conceived long before a functioning ballistic missile submarine (SSB or SSBN) was ever constructed in 1949. The USS Thresher was the lead ship of a new class of fast-attack submarine and was the culmination of twelve years of scientific and engineering research to develop a submarine hunter-killer to address the threat that Soviet submarines posed. Bow View of the Nuclear-Powered Attack Submarine USS Thresher (SSN-593), J( Local ID: 428-N-1057645, NAID 175539769) Introduction to the First Modern Submarine The Thresher was the first of two nuclear submarines lost during the Cold War, the other being the USS Scorpion (SSN 589) in 1968. This April 10th marks the 60th Anniversary of the loss of the USS Thresher (SSN 593). Patch, Reference Archivist at the National Archives in College Park, MD and Subject Matter Expert for Navy Records.
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