Russian non-national submarines type “Warshovinka” (projects 877 and 636) are called black holes due to their acoustic low-noise, RIA Novosti, Deputy General Director of the Central Design Bureau of Marine Equipment (CKB MT) “Rubin” Andrei Baranov.
According to him, the improvement of the energy installation of the submarine demanded more powerful diesel generators, as a result of which the length of the submarine was increased, but the charging time of its batteries was reduced, which increased the navigation range and the time of being in the surface position. “The emergence of low-speed rowing electrical equipment at serial boats has significantly improved both their acoustic security and high-speed qualities,” said specialist.
Baranov added that Rubin presented several variants of non-national submarines of the next generation of Russia, in particular, the “Kalina” project. “Decision for the State School,” said the Deputy General Director of the CCB MT.
In October, Interfax, referring to the annual report of the Joint Shipbuilding Corporation (OSC), said that the project of the Russian submarine of the fifth generation of the project “Kalina” received number 777a.
In March, Vice Admiral Oleg Burtsev stated that the Navy of Russia could start receiving atomic submarines of the fifth generation by the end of the next decade.