The Russian Federation nuclear powered submarine sank in August 2000 with the loss of all 118 lives on board. In May 2001 the Russian Federation entered into a contract with the Dutch consortium Mammoet-Smit for the recovery of the on the condition that it had to be completed within that year. The consortium prepared for this World-first salvage of a nuclear powered and conventionally armed submarine that was very substantially damaged lying at 110m in the icy waters of the Barents Sea. Working at sometimes breathtaking pace, Mammoet-Smit prepared, lifted and transported the wreckage of the delivering her to a floating dock at Rosljakovo, about 200km south of the foundering site, in just over six months from the contract date. This paper tracks how the nuclear and other hazards of the , its nuclear reactors and weaponry were assessed and monitored throughout the recovery and salvage program, and it provides an insight into the reasons why the sank.
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