In United States of America are concerned by the silent Russian submarines called by "black holes"

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Russian Federation continues to develop silent submarines for the fleet is very much disturbs heads of the Pentagon, authors of article in Amerikanskoye izdaniye The National Interest note. "Black holes" can be considered for the Navies of United States of America as "headache". By the way, not so long ago over the ocean were excited, having learned about completion of development the submarine "Volkhov" (class "Varshavyanka") equipped with the diesel electric power plant that allows to ensure almost silent functioning. Thanks to a special covering of the case the most minimum noise arising during functioning of the engine are absorbed even...

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