10 April 1963 A.D. CAPE COD, MA: USS Thresher (SSN-593) Sinks—129 Lives Lost

10 April 1963 A.D. CAPE COD, MA: USS Thresher (SSN-593) Sinks—129 Lives Lost

http://www.navy.mil/search/display_history.asp

1941 - USS Niblack (DD 424) picks up three boatloads of survivors from Dutch freighter Saleier, which was sunk the previous day by a German U-boat. The destroyer detects a submarine preparing to attack and drives it off with a depth charge attack. It is the first action between American and German forces in World War II.

1942 - USS Thresher (SS 200) torpedoes and sinks Japanese merchant cargo ship Maru six miles north of Oshima, near the entrance to Tokyo Bay, Honshu, Japan.

1944 - TBM bombers and FM-2s aircraft (VC 58) from USS Guadalcanal (CVE 60) sink German submarine U 68 off Madeira Island.

1963 - During diving tests, USS Thresher (SSN 593) is lost with all hands east of Cape Cod, Mass., including commanding officer and 17 civilian technicians.

1966 - During the Vietnam War, the river patrol boats (PBRs) of River Patrol Force commence operations on inland waters of South Vietnam.

https://thisdayinusmilhist.wordpress.com/2014/04/10/april-10/

1963 – The USS Thresher nuclear-powered submarine failed to surface 220 miles east of Boston, Mass., in a disaster that claimed 129 lives. The second USS Thresher (SSN-593) was the lead boat of her class of nuclear-powered attack submarines in the United States Navy. Her loss at sea in the North Atlantic during deep-diving tests approximately 220 miles east of Boston, Massachusetts was a watershed event for the U.S. Navy, leading to the implementation of a rigorous submarine safety program known as SUBSAFE. Judging by the 129 crew members and shipyard personnel who were killed in the incident, historic context and significance, the sinking of Thresher was then, and remains today, the world’s worst submarine disaster. As the first nuclear submarine lost at sea, its disappearance generated international shock and sympathy.