Nine nuclear submarines have sunk, either by accident or by sinking. The Soviet Navy has lost five (one of which sank twice), the Russian Navy twice and the United States Navy (USN) two. Russian officials faced accusations of trying to cover up all the details of the accident, and some Russian media criticized what they said was a lack of transparency and drew parallels with the scarcity of official information during the melting of a Soviet nuclear reactor in Chernobyl in 1986.British Parliament dated November 14, 2000 indicates that following the Kursk incident, then-Minister of State for Europe Keith Vaz said that Secretary of State for Defense Geoff Hoon “had already assured the Russian Defense Minister that there were no British submarines in the area of the Kursk wreckage. The Indonesian Navy (TNI) is looking for its KRI Nanggala-402 submarine after losing contact with the ship in waters off Bali on Wednesday.
The plan to build nuclear-powered submarines in South Australia has alarmed anti-war and environmental activists, one of whom says the ships have a long history of involvement in accidents around the world. Vyacheslav Popov, commander of Russia's Northern Fleet in 1999-2001, told Sputnik that the Kursk sank as a result of a collision with a NATO submarine that came too close to it. Dr. Green said the question of what would happen to spent fuel remained unanswered, and that there was a long history of accidents involving nuclear submarines.
In May 1968, the United States Navy's Scorpion nuclear attack submarine disappeared in the Atlantic Ocean with 99 men on board. INNOVATION - Many superpowers consider nuclear submarines to be a covert delivery system and therefore immune to detection. Naval Institute News reported that unnamed U.S. officials believed that a North Korean submarine had been lost at sea in the Sea of Japan.
When the battery ran out, the submarine came to the surface with a ventilation opening for oxygen, which was largely consumed by the diesel engines being charged. The submarine was in service in the Arctic Ocean and had to make an emergency surface through the ice sheet. On October 25, 2003, the US submarine USS Hartford ran aground in the port of La Maddalena, Sardinia, in the Mediterranean Sea. The Kursk tragedy became one of the deadliest underwater accidents in world history, second only to the loss of the USS Thresher in 1963, which left 129 dead.
As a direct result of the Thresher disaster, the Navy instituted the SUBSAFE program to ensure that there is a fully documented system of testing and retesting of all critical components of a nuclear submarine. Green said Australia's nuclear energy lobby had been quick and that he was already using the Prime Minister's announcement to drive greater participation in the nuclear fuel cycle, including atomic energy and waste storage. After a multinational effort, a Royal Navy team using a Scorpio ROV was able to free the submarine from entanglement, allowing it to return to the surface.