In their official report of 29 January 1970, the SCORPION Structural Analysis Group (SAG), which included the Navy's leading experts in submarine design, submarine structures, and the effect of underwater explosions, advised the Navy Court of Inquiry (COI) that the US nuclear submarine SCORPION was ... More info →
The US nuclear submarine THRESHER (SSN-593) was lost because standard compensation procedures to adjust for hull compression during the deep-dive on 10 April 1963 were not followed. Consequently, THRESHER was heavy (negatively buoyant) at test-depth (1300 feet) and unable to deballast because adiab... More info →
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