All 129 of the USS Thresher’s crew died in one of the worst incidents in US naval peacetime historySome of the 129 crew members on board a US navy nuclear-powered submarine that sank after a catastrophic failure in 1963 may have survived for 24 hours and were heard knocking on the hull, newly declassified files reveal. USS Thresher was 220 miles east of Cape Cod, Massachusetts, on April 10, 1963 conducting test dives when it was lost with all hands in one of the worst incidents in US naval peacetime history. Until now, the official record claimed that all on board died when the submarine imploded and sank to more than 8,000ft. SponsoredHowever, the release of 600 pages of declassified documents have revealed accounts of signals and tappings, including the banging of metal on metal, coming from within the stricken submarine on April

Source: The Times July 14, 2021 23:02 UTC