The head submarine of project 677 "St. Petersburg" was sent for modernization

The lead diesel-electric submarine of project 677 (code "Lada") "St. Petersburg" went on scheduled maintenance and modernization. This was reported by the press service of the Ministry of Defense.

According to information, diesel-electric submarine "St. Petersburg", which is in trial operation in the North navy, left the base on the Kola Peninsula and headed for Kronstadt, where he will embark on modernization and maintenance. The Ministry of Defense emphasized that the submarine will carry out the entire inter-naval transition from the Barents Sea to the Baltic in a surface position. At the exit, she was escorted by the rescue tugboat Pamir.

The message does not indicate the timing of work on the submarine, and also what exactly will be the modernization.

The lead boat St. Petersburg of the Project 677 series of non-nuclear ships was laid on the slipways of the Admiralty Shipyards in December 1997, launched on October 28, 2004. In April 2010, the boat was accepted into the Russian Navy for trial operation, which continues to this day.

DEPL project 677 belongs to the fourth generation of non-nuclear submarines. It is designed to deal with enemy submarines and surface ships, defeat its coastal targets, set minefields, transport units and special forces.

Submarine displacement - 1765 tons, length - 67 meters, width - 7 meters, underwater speed - 21 knot, depth - more than 300 meters, autonomy - 45 days. The submarine is equipped with six 533-mm torpedo tubes.

Comments

[Doccor18]

A promising project that did not fire. VNEU does not. Well, now modernization.

[Sky strike fighter]

They are upgrading the headquarters of St. Petersburg to the level of the first production Kronstadt. The project fired. The equipment upgrade coefficient in the submarine, laid down during its design, reaches 70%.
In 2021, the fleet will receive two serial upgraded submarines of 677 projects. St. Petersburg will be surrendered later than the first two serial ones.

the submarine received the first digital integrated system built with the use of modern network technologies of high reliability “Lithium”, the first domestic inertial navigation system for the NPS “Apassionata”, the first highly automated miniature communication complex “Distance”, the periscope complex “Sail-98” of non-penetrating type, diesel DC generators, nitrogen fire extinguishing system. The noise level of the submarine, according to various estimates, is approximately 50% lower than that of the project 877 submarines.

Joint campaigns with submarines of previous generations of projects 877 and 636 (classified by the Kilo type as classifiers from the North Atlantic block) demonstrated the significant superiority of the Lada in the detection range of underwater and surface targets.

"Kronstadt" was completed according to the adjusted design, with the elimination of the deficiencies identified in the sea of ​​the head hull, it is an even more advanced warship. In terms of improvements to the basic project, we especially note the improved control system for naval technical equipment and the navigation complex. Introduced modern electronics that control these and other systems and mechanisms of the ship. Corrected the living compartment, where the crew, the wardroom and the galley are located. Retractable devices, shaft line shock absorbers are improved. The main rowing electric motor СЭД-1 developed by the Scientific Research Institute of Electronic Engineering has been replaced by a more advanced one from Electrosila JSC. It is also made with permanent magnets, similar to the German Siemens Permasyn.

https://m.tvzvezda.ru/news/opk/content/201809271258-292n.htm

[2 Level Advisor]

The fourth generation without VNEU is like that of fighters - the 5th generation without stealth .. and the rest, yes, all the rules, new devices are tested on it .. generation 3+ .. But for some reason, although it "shot" at yours, the admiral said:

Commander-in-Chief of the Russian Navy V. Vysotsky:
“... the declared technical characteristics of the Project 677 submarines are not confirmed during the tests of the lead submarine St. Petersburg. “In its current form, the Lada is not needed by the Russian Navy. We do not need new "brains" with weapons that would sit on the energy of the Second World War. For what? Who needs it? And she has the same operational properties. »
However, a little later the commander added that the project is being finalized and will be adopted.

He was adopted .. but still "new" brains "with weapons that would sit on the energy of the Second World War"

[Sky strike fighter]

You forgot to write how many years ago Vysotsky commanded the fleet and what year his quote refers to when the 677 project was still really raw and not ready, so you reworked the project for so many years.

[2 Level Advisor]

he said in 2012 that there is no VNEU on it - "We do not need new 'brains' with weapons that would sit on the energy of the Second World War.", and VNEU, has it really appeared there today?
It's a shame, a good boat, but without VNEU it is very conditionally needed, a diesel engine on a submarine is rapidly becoming obsolete these days ..

[Reserve buildbat]

Ten years of trial operation?
It’s interesting that they are trying so hard there ...

[Black sniper]

They built seven years ... Isn’t it too much ???

[knn54]

In the surface position, accompanied by a tugboat.
"The declared technical characteristics of the Project 677 submarines are not confirmed by the tests of the lead submarine Saint Petersburg ... The Russian Navy does not need the Lada in its current form. We do not need new" brains "with weapons that would sit on the energy of the Second World War. Why? Who needs it? And its operational properties are the same. "
Commander-in-Chief of the Russian Navy V. Vysotsky, 2012
Generally back. "Admiralty shipyards", which "pushed" the raw submarine into trial operation 10 years ago.

[Ratmir_Ryazan]

Generally back. "Admiralty shipyards", which "pushed" the raw submarine into trial operation 10 years ago.

The problem of LEP diesel-electric submarines is not related to shipbuilding, but to technology, Russia does not have an effective VNEU today, but without it, what can shipbuilders do for you?

All that they could and what depended on them, they did, and VNEU is a question for our scientists, why we cannot do it and foreign intelligence, why we cannot steal technology, while Sweden, Japan, Germany have been exploiting it for a long time.

[Boa kaa]

Quote: Ratmir_Ryazan

Russia does not have an effective VNEU today, and without it, what can shipbuilders do to you?

Fair remark. But still...
Malachite threatened to make VNEU on the basis of a closed-cycle gas turbine plant by 2021. Maybe they will do it? Therefore, they will try on in St. Petersburg, so that they can already put the spent ones to Kronstadt and Great Luke. But these are just assumptions, Wishlist ...
But the adversaries from Naval Gruop have engineered a level 2 VNEU, which receives highly purified hydrogen on board from reforming the single OTTO-2 fuel. Oxygen is cryogenic outside the solid casing, fuel cells and at the outlet are water, carbon dioxide and electricity. The installation compartment is 8m long. It can be installed on newly built and modernized boats. And they did it back in 2019, and crowed only now. Looks like they’ve worked and are confident in their product. Ours did not finish this direction ... It's a pity.

The Naval Group has developed the FC2G AIP (Air-Independent Propulsion Fuel Cell 2nd Generation) 2nd Generation Non-Volatile Fuel Cell. AIP FC2G is an additional module to the main power plant of the submarine and is able to increase the autonomy of the submarine 3-4 times.
https://naukatehnika.com/vozduhonezavisimaya-energeticheskaya-ustanovka.html
naukatehnika.com

[Boa kaa]

Quote from rudolf

Malachite creates its closed-cycle turbine for submarines with a displacement of up to 1000 tons of its own projects.

Good evening, Rudolph!
In addition to Malachite VNEU at the ECL, Rubin also mastered. They also painted promising prospects ... And besides Rubin, there was also such an organization as the Krylov State Scientific Center, which even demonstrated its BTE-50KE battery on a test bench ... And high purity hydrogen for it would have to. develop on board a submarine reactor, the development of which was the responsibility of the Central Research Institute of Marine Electrical Engineering and Technology. Everything seemed to develop successfully ... Even the power was up to 450 kW, 1,5 times more than that of the Germans ...
Exactly one year ago, the president of the USC, Alexei Rakhmanov, announced that funding had finally begun to work on the development of an air-independent power plant for non-nuclear submarines. And again a bummer!
(A b and d na, yes-ah-ah ...)

[Subtext]

And without VNEU the project is extremely risky. Several hundred OCDs forced them to reorganize into one OCD - pl as a whole. Only those who are in the know can give an assessment.

[Vladimir61]

Once they were going to "turn the rivers back", but they did not dare to globally solve the issue of modernizing the inland shipping channels - from the Baltic and the White Sea, to the Caspian Sea and Azov. Such a river "rokadnaya track" would be in demand by both the civil and military fleet. And they would not chase ships and vessels "Over the Three Seas" ...

[antivirus]

again a little spoon! clean-upgrade
when will the 100 thousand tV "Leaders" go?
all the cons and cons ... me, maybe they are sent to Shoigu?

[Connor MacLeod]

Well, why is there such an STAR throughout the Navy ??? Answer people !!! Who is to blame and what to do???

[AU Ivanov.]

Because when God created discipline, the fleet was at sea. And aviation is in the air.

[Scharnhorst]

For the Black Sea Fleet, 6 Varshavyankas have already been built, for the Pacific Fleet the same is done with ointment, for the DKBF six 677s are quite suitable. And there is no need to invent a wunderwaffe, it is necessary to build and close the problems of the fleets (as in the Black Sea Fleet and Pacific Fleet). Let's win the war, take the trophy "212", and for another 75 years in the "swamp of quiet life"