Diesel-electric submarine "Kronstadt" project 677 "Lada" continues sea trials

Submarine "Kronstadt" project 677 "Lada" continues to be at the sea ranges of the Baltic fleet as part of the next stage of sea trials. According to the press service of the fleet, a sonar system is being tested on the submarine.

Despite the fact that back in August, Admiralty Shipyards announced that this submarine was entering the final stage of factory sea trials, Kronstadt will not complete them in any way. Three weeks ago, the submarine made a series of underwater dives together with the Ufa diesel-electric submarine of project 636.3 Varshavyanka. To date, "Ufa" is already in the fleet, and "Kronstadt" continues to be tested.

During a series of dives, the crew of the submarine and representatives of the industry began to test the underwater acoustic complex of the diesel-electric submarine

- said in a statement.

Most likely, the submarine is being worked out to the fullest, the Lada project turned out to be crude, the head submarine of the St. Petersburg series was laid down on the stocks 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 lasted until September 2021.

As already reported, "Kronstadt" is a long-term construction, construction was carried out with interruptions, stops and adjustments to the project. The laying of the submarine took place in July 2005, in 2009, by decision of the Ministry of Defense of the Russian Federation, the construction of the order was suspended until 2013, the launching took place only in 2018. At the end of 2021, the submarine entered sea trials for the first time. According to the shipbuilding enterprise, "Kronstadt" was completed according to the adjusted project, taking into account the trial operation of the lead submarine of the series.

Comments

[tralflot1832]

And what did someone with the Lada project think that they would not finish it anyway? Which subcontractor or subcontractors. But this is a mystery. And rightly so.

[Lt. Air Force stock]

Quote: tralflot1832

And what did someone with the Lada project think that they would not finish it anyway? Which subcontractor or subcontractors. But this is a mystery. And rightly so.

Because it was necessary to either take the proven technology of an anaerobic power plant or simply produce a submarine with lithium-ion batteries, and ours seemed to have decided to create some kind of an anaerobic power plant of their own, hence the problems.
More than 15 years have passed, but there is no result.

[Serg65]

Quote: Lt. air force reserve

it was necessary either to take the proven technology of an anaerobic power plant or simply to produce a submarine with lithium-ion batteries

Do we already produce lithium-ion batteries of such power?

[Lt. Air Force stock]

Quote: Serg65

Do we already produce lithium-ion batteries of such power?

China produces, and what does power mean? There they collect large blocks from finger-shaped batteries. Tesla does this.

[Serg65]

Quote: Lt. air force reserve

China releases

Would you like to buy from China?

Quote: Lt. air force reserve

Tesla does this.

Tesla-Russian office?

[Lt. Air Force stock]

Quote: Serg65

Would you like to buy from China?

At the beginning and then themselves, after all, they bought microelectronics abroad and nothing.

Quote: Serg65

Tesla-Russian office?

I'm talking about the principle of a set of rechargeable batteries.

[Serg65]

Quote: Lt. air force reserve

At the beginning and then themselves, after all, they bought microelectronics abroad and nothing.

The Liotech company, near Novosibirsk, this year began the production of traction lithium-ion batteries!
First, they will practice on shunting locomotives, and then, God forbid, they will get to diesel-electric submarines!

[Subtext]

The project included several hundred OKRs[b]. Those involved could not stand it, and replaced it with one - the ROC project. These were obviously big risks, the fruits are reaped. VNEU, a topic in itself ...

[dauria]

And what did someone do with the Lada project,

And this is the Russian Zamvolt. When a piece that has not been brought to mind is laid into the project. Like a railgun with them, or VNEU with us. As a result, "hopes did not come true", but what has already been done is a pity to throw it in the trash. In the people "Not a candle to God, not a poker to hell."
Technical risk is necessary and inevitable, otherwise you will not go forward. But only a designer with experience knows the line with "adventurism".

[Beregovic_1]

Comrades say that the boat has a cool HAK, cool torpedo tubes, and in general, many new products are being worked out. But the energy is outdated. VNEU was not delivered.

[kapitan92]

Quote: Beregovyhok_1

Comrades say that the boat has a cool HAK, cool torpedo tubes, and in general, many new products are being worked out. But the energy is outdated. VNEU was not delivered.

Project 877 "Halibut". On the basis of the 877EKM project, the 636 Varshavyanka project was developed for the Chinese Navy. Another 8 submarines were built for Vietnam and Algeria under project 636.1.
Project 636.3 deep modernization of "Halibut" pr 877.
Also, the development of project 877 was the boat of project 677 "Lada"
On the basis of the 677 project, the Rubin Central Design Bureau spawned a bunch of projects, but not a single boat was built according to any of these projects: Amur 550, Amur 750, Amur 950, Amur 1450, Amur 1650 and Amur 1850.
Differences 877 (636) of the project and 677.
A little 636 (677) - dimensions: surface displacement 2300 (1765) - underwater 3040 (2650) tons, maximum length - 72,6 (66,8) m, hull width max. 9,9 (7,1) m., Average draft - 6,2 (6,6) m. by 23%. Their surface speed is the same - 13 knots, but the underwater speed for 8 is more - 29 knots versus 10-677 for 21. The working depth of immersion is almost the same - 17 m for 19 and 877 - for 240. With the same limit of 877 m. Autonomy swimming also coincides - 250 days. But, the crew of 677 is significantly smaller - 300 people versus 45 for 677.

And this is with absolutely the same weapons!
Construction time 636.3 2 years, 677 average 15-17 years!!!
"And to hell with the accordion"?
Lards went up, years went by, but there were no breakthrough solutions and no!

[bk0010]

Quote: kapitan92

And this is with absolutely the same weapons!

Look not there. Of interest are secrecy (both acoustic and non-acoustic) and awareness (HOA, etc.). And the fact that the caliber and number of torpedo tubes has not changed is not critical. Americans generally manage with four TAs and do not buzz.

[kapitan92]

Quote: bk0010

Americans generally manage with four TAs and do not buzz.

The Americans do not have diesel submarines in service, and the article is about them.

[agond]

Quote: kapitan92

Lards went up, years went by, but there were no breakthrough solutions and no!

One detail draws attention
, in project 636 3040t-2300t=740t i.e. water in ballast tanks 740t
and in project 677 2650t-1765t = 885t of water,
it turns out that the old project has more total displacement by
3040-2650=390t ,
but the new project has more ballast water
885-740\=145t !!!,
Why is this done?

[Subtext]

One detail draws attention
, in project 636 3040t-2300t=740t i.e. water in ballast tanks 740t
and in project 677 2650t-1765t = 885t of water,
it turns out that the old project has more total displacement by
3040-2650=390t ,
but the new project has more ballast water
885-740\=145t !!!,
Why is this done?

He remembered A. Raikin: "The amount of meat in the USSR for the year divided by the number of inhabitants, and decided to himself that he rules the country!"

[Sergey39]

The Americans have a different concept of the submarine fleet!

[kgbers]

It seems that Lada was planned to be made with VNEU. Why write that diesel-electric?

[Chief Officer Lom]

Because our VNEU is still not ready and the boats began to be completed as diesel-electric submarines.

[Sergey39]

We have problems with VNEU, science and industry cannot cope with the task that the fleet issued, they invent everything and bring it to mind!)))
So this project is being procrastinated, perhaps there are still plugs with other equipment.

[All the details]

"Ruby" is very fond of loot. And under the loot, he invents something that is tempting for the Navy, but results in problems. I am personally surprised that small boats are given to Rubin to design. That's really someone who, and "Rubin" in the USSR and in Russia has always specialized in strategists. That's where the loot from the order for the design! But there is another design bureau in St. Petersburg - Malachite. So they have always designed UNIVERSAL torpedo-missile boats of much smaller sizes, high-speed, high-speed and with a large diving depth. There were boats of project 705. Yes, and 971 projects are also excellent. "Borey" - pr. 955 from "Rubin" - displacement 14720/24000 tons, "Ash" - pr. Feel the difference.

[Sergey39]

This is stupidity to measure boat projects by displacement and combine them with design bureaus when the difference is in their purpose! (((
PLA, there will be no more displacement than SSBN !!!

[ilya.muromczev2013]

Nobody drives us, and a roasted rooster doesn't peck. So, there is no need for extra groans, let them bring VNEU to mind. Moreover, the boat does not pull any billions, it has always been on residual financing ...

[Sergey39]

It seems that all new projects, taking into account advanced equipment and weapons, are brought to perfection in hardware for a long time!
A striking example is the frigate 22350 Admiral Gorshkov!)))

[PSih2097]

Personally, my opinion is that they will cut down mini-yasu faster than VNEU on submarines, either for the type of halibut / fret, or for Varshavyanka ...

[agond]

Perhaps VNEU has already been created, perhaps even in two versions, one for reforming diesel fuel to produce hydrogen, the other is a steam-gas turbine powered by steam gas from combustion in oxygen or hydrogen peroxide of diesel fuel or another hydrocarbon, such as ethyl alcohol .. Therefore, the question is not the absence of VNEU, but rather, how to place it in a limited volume of the boat without compromising other characteristics. It looks like that strange extra volume of 145m3 in the inter-hull space is reserved, for example, for liquid oxygen wounding. or for chemical absorber