Russia new experimental submarine

[Zacho]

http://www.individual.com/story.php?story=74993626

A new experimental submarine, built in secret, has been completed in Russia, Russia's corporate-owned military news agency Interfax-AVN website (in English) reported on 14 December from Severodvinsk.

The Russian-language version of the report adds that the new sub "is designed to test unique technology in the form of a nuclear reactor installed aboard a diesel submarine as its auxiliary propulsion system".
The B-90 Sarov diesel submarine was floated on 14 December, Sevmashpredpriyatiye spokesman Mikhail Starozhilov told Interfax-AVN.
"The pilot diesel submarine is a multipurpose test vessel, which will be used to test newly developed and modernized types of arms and military equipment, the spokesman said. This submarine has a long life span and can be modernized many times over," AVN notes.
In turn, the Russian navy's information and public relations service told AVN that the new sub is designed for tests of "combat and non-combat unmanned underwater vehicles, as well as other types of sea weapons and armament, and underwater equipment designed for various purposes, their prototypes, functional models (experimental systems), released from launchers" [grammar as published], the Russian-language version of the report adds.
The plan is to carry out the submarine's factory running tests and state trials in 2008, the report notes.
It goes on to say that the B-90 crew is 52 officers and warrant officers, formed by order of the Northern Fleet commander, its training completed. Capt 1st Rank Sergey Kroshkin is in command.
"The construction of the new submarine proceeded amid heightened secrecy, as it - as experts consider - represents a unique experiment by Russian scientists and the military," the report sums up.
The design of the submarine, from the Rubin firm, dates back to 1989, AVN recalls. It was laid down the same year at the Krasnoye Sormovo shipyard in Nizhniy Novgorod, its construction continued at Sevmash in Severodvinsk.
"Open sources say that the project is number 20120. According to open-source data, the new submarine is very much like Project 877 Paltus diesel submarines but its under-water displacement is greater, at 3,950 tonnes rather than 3,050.
"The experimental Project 20120 is designed to test unique technology in the form of a nuclear reactor installed aboard a diesel submarine as its auxiliary propulsion system," the report notes in conclusion.
Sources: Interfax-AVN military news agency website, Moscow, in English 1050 gmt 14 Dec 07; and in Russian 1530 gmt 14 Dec 07

[Sea Demon]

I wonder if they intend this design as a way to augment their current nuclear submarines, or to replace nuclear subs entirely with these. Sounds like an interesting proposal, but I'm not sure how effective these would be for long-range, deep ocean, sustained combat operations. The reactor may have to be much smaller and put out less power. Not to mention that it might be diffcult to find the space to implement it all in a sub hull. Very curious design here.

[XabbaRus]

I suppose it depends on the purpose of the reactor plant. If like now they provide propulsion as well as power to the ship systems from genies off the turbine they have to be quite big. If however it is used to charge the batteries then I suppose it could be made smal enough and when in low power mode or even for chargin batteries it might not need huge pumps or any at all thus being very quiet.

[Chock]

It's an interesting notion, especially with the Russian preference for the quieter method of using the action of moving through the ocean to take water on board for the reactor rather than pumping it in and making some noise. When you think about that, it might not be such a bad idea to try in order to give a diesel sub some longer legs, although it does strike me as an odd combination.

Chock

[FIREWALL]

new experimental submarine, built in secret, has been completed in Russia,


Some Secret :rotfl:

[Reaves]

A diesel sub with a reactor... Interesting. :hmm:

[Zachstar]

Ok way to go... Give up the best advantage these boats have? It has been proven time and again that the conventional submarines are just as deadly and in some cases even more deadly than their nuc counterparts. The fact that they do not have near limitless underwater performance seems to mean little.