We breakdown the action.
The Virginia-class is orders of magnitude quieter and offers far better sensors and carries more weapons. The newer vessels are far more effective against threats like the Kilo than their Los Angeles-class predecessors. Buying as many Virginias as possible becomes especially important as more and more potential adversaries procure advanced diesel-electric boats like the Kilo or the even more capable Russian-built Amur.
Is it possible that one of New Delhi’s Russian-built Kilo-class diesel-electric attack submarines managed to “sink” a nuclear-powered U.S. Navy Los Angeles-class attack submarine during exercises in October 2015?
The Indian submarine INS Sindhudhvaj (S56) allegedly “killed” USS City of Corpus Christi (SSN 705) during an exercise called Malabar that is held annually between India, Japan and the United States.
According to the Indians, the submarines were assigned to track each other down in the Bay of Bengal. “The way it happens is that the Sindhudhvaj recorded the Hydrophonic Effect (HE) – simply put, underwater noise – of the nuclear powered submarine and managed to positively identify it before locking on to it. Being an exercise what did not happen was the firing,” an Indian naval officer told India Today. The Indian vessel then “sank” USS City of Corpus Christi using 533mm torpedoes.