#OTD in 1961, USS Thresher (SSN 593) was commissioned. Thresher was lost with all hands on April 10, 1963 during deep-diving tests about 220 miles east of Cape Cod, Massachusetts - #USSThresher's remains were located about 8,400 feet below the surface on the sea floor. The loss of #Thresher led to the Navy establishing the Submarine Safety Program (SUBSAFE), to provide maximum reasonable assurance that submarine hulls will maintain watertight integrity, and that the boats can recover from unanti

#OnThisDay in 1964, the submarine USS Thresher was located and photographed. It had sunk the year before, during a drive test, killing all 129 crew members. Watch the 2019 USS Thresher Memorial dedication at Arlington National Cemetery: c-span.org/video/?464747-1/arlington-cemetery-dedication-uss-thresher-memorial | American History TV

USS Thresher (SS-200): The Most Decorated American Submarine of WWII