Japanese submarine of new generation Taigei SS 513 entered sea trials

August 4 2021 49

The first Japanese non-nuclear submarine of the new generation Taigei SS 513 of project 29SS entered sea trials. According to Military Leak, the transfer of the submarine to the naval self-defense forces is scheduled for March 2022.

The new submarine was laid down on March 16, 2018 at the Kobe Mitsubishi Heavy Industries shipyard and launched on October 14 last year. After commissioning, it will become the 22nd submarine in the Japanese naval self-defense forces. At the moment, two more submarines of this project are under construction; in total, it is planned to commission 7 submarines of this class.

The JS Taigei (Big Whale) submarine SS 513 is the next-generation lead submarine to replace the Soryu-class submarines. The new submarine retained the general shape of the Soryu submarine hull, but has a number of design changes. At the Taigei submarine, the cutting was significantly reduced to reduce hydrodynamic resistance and improve noise characteristics. In addition, the "insides" of the submarine have undergone significant changes.

It is reported that the submarine has an improved snorkel system in order to reduce the signature, a new generation GAS, new sound-absorbing materials are used to reduce the submarine's signature. The main difference from the previous generation "Soryu" is the rejection of the Stirling engine. Instead, new lithium-ion batteries are installed.

The standard displacement is about 3 thousand tons, the hull length is 84 meters, the width is 9,1 meters. Crew - 70 people. Other details have not yet been disclosed.

Information

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hrych

+8

4 August 2021 12: 33

Dedicated to fans of VNEU. And so they rubbed us about the bright future of Stirling engines with cryo-installations. Here, one of the innovative practitioners, crossed himself and fences high-capacity batteries, the good old snorkel, etc.
1. knn54
  
  +1
  
  4 August 2021 12: 51
  
  And apparently the design is SINGLE HOUSED.
  1. NDR-791
    
    0
    
    4 August 2021 13: 25
    
    Quote: knn54
    And apparently the design is SINGLE HOUSED.
    
    Yes, it looks like that. Only 3000t., And the crew as if with a triple change of stokers.
  2. Lionnvrsk
    
    +1
    
    4 August 2021 13: 56
    
    The Japanese are building muscle, slowly but purposefully.
Snail N9

+7

4 August 2021 12: 35

Nobody saw how a lithium-ion battery explodes and burns when water gets into it? And I saw.
1. BARKAS
  
  +2
  
  4 August 2021 12: 38
  
  This one should be fine in a dusty and moisture-proof case.
2. TermNachTer
  
  +5
  
  4 August 2021 12: 38
  
  Don't you know that VNEU contain a lot of very flammable and explosive elements? So the likelihood of an explosion and fire is at least the same. If the Japanese decided to return to diesel-electric submarines, then they probably thought about this step properly.
3. Mountain shooter
  
  +11
  
  4 August 2021 12: 42
  
  Quote: Snail N9
  Nobody saw how a lithium-ion battery explodes and burns when water gets into it? And I saw.
  
  And when seawater enters the lead-acid cans, chlorine is released! When the water in the boat is already "extinguish the light" ...
4. Jacket in stock
  
  +2
  
  4 August 2021 13: 20
  
  Quote: Snail N9
  how a lithium-ion battery explodes and burns
  
  Would you like to ask about liquid oxygen?
  1. vadim dok
    
    0
    
    4 August 2021 15: 41
    
    And about hydrogen peroxide, by the way?
5. Alex777
  
  +3
  
  4 August 2021 14: 08
  
  Quote: Snail N9
  Nobody saw how a lithium-ion battery explodes and burns when water gets into it? And I saw.
  
  So far, no one has seen Japanese boats with such batteries that exploded and caught fire.
  It is clear that exploitation in peacetime is one thing, and depth charges in wartime is another. But the stability of VNEU in such conditions is not known either.
6. lynnot
  
  +5
  
  4 August 2021 14: 11
  
  When water begins to fill the battery pits of the submarine, it is bad for any type of battery ...
7. ProkletyiPirat
  
  0
  
  4 August 2021 16: 57
  
  Quote: Snail N9
  Nobody saw a lithium-ion battery explode and burn
  
  this was the case with a battery with a "liquid filling", today they rule with a "jelly-like filling" or with a "hydrophilic-frame-jelly" some variants of such batteries do not explode at all and do not burn, at most they smolder like peat.
8. lynnot
  
  0
  
  5 August 2021 10: 51
  
  In my opinion, just in the subject:
  Tesla's largest electric storage fire fails to stop for fourth day in a row
  02.08.2021 [13:02], https://3dnews.ru/1045738/pogar-na-krupneyshem-nakopitele-elektroenergii-tesla-ne-udayotsya-ostanovit-chetvyortiy-den-podryad
Mountain shooter

+1

4 August 2021 12: 40

So much for VNEU! Ocean boat, 3000 tons. The crew is designed for long voyages. but closely ...
1. Flooding
  
  +1
  
  4 August 2021 13: 59
  
  Tons are international full-size metric.
  And the crew is their own, slender.
2. Alex777
  
  +2
  
  4 August 2021 14: 16
  
  Apparently, due to getting rid of VNEU, a place appeared.
  But the crew is too big for such a small ship.
  The Ash-M crew will be smaller ...
Roma 1977

+1

4 August 2021 12: 42

It will recharge unnoticed by docking to USB ports of enemy ships.
1. Lt. Air Force stock
  
  -1
  
  4 August 2021 12: 44
  
  Quote: Roma-1977
  It will recharge unnoticed by docking to USB ports of enemy ships.
  
  Who knows, maybe there is a mini nuclear fission reactor for recharging batteries or the batteries themselves are nuclear.
  1. Walking towards the light
    
    +3
    
    4 August 2021 13: 04
    
    A mini-nuclear reactor is shallow for the Japanese. Here is a quark reactor just right)). Joke.
    1. Uncle lee
      
      -3
      
      4 August 2021 13: 11
      
      Quote: Walking towards the light
      .Here is a quark one just right
      
      And Fukushima to help them! Let Shkvarkovy ask the lard lovers!
      1. Walking towards the light
        
        -1
        
        4 August 2021 13: 15
        
        So lard lovers import it from the Russian Federation. The greaves will be ideologically incorrect, without "molecules of freedom."
        
        Uncle lee
        
        -1
        
        4 August 2021 13: 19
        
        Quote: Walking towards the light
        without "molecules of freedom".
        
        Interrupt! But what an innovation!
        
        Uncle lee
        
        -1
        
        4 August 2021 16: 11
        
        Quote: Walking towards the light
        lard lovers import it from the Russian Federation
        
        Fat lovers are offended, goons!
  2. Doccor18
    
    0
    
    4 August 2021 14: 47
    
    Quote: Lt. air force reserve
    Who knows maybe there is a mini reactor
    
    It would be high time for us to start large-scale construction of small (4000 tons) nuclear submarines, which would be three times cheaper than the project 885. After all, there are a lot of such boats, and "yesterday", and very much needed for "tomorrow", at least: 12 pennants for the Black Sea Fleet (including for the Mediterranean), Northern Fleet, Pacific Fleet ...
    8 Ash trees will be needed for another ...
    1. mvg
      
      +1
      
      4 August 2021 21: 54
      
      minimum: 12 pennants for the Black Sea Fleet
      
      Use your brain. The Black Sea is nuclear-free.
2. NDR-791
  
  +1
  
  4 August 2021 13: 28
  
  Quote: Roma-1977
  It will recharge unnoticed by docking to USB ports of enemy ships.
  
  This is the last century !!! Wireless charging is all the rage today
  1. Roma 1977
    
    0
    
    4 August 2021 15: 06
    
    ... And a case with rhinestones.
Mouse

+1

4 August 2021 12: 48

Appendix US Navy ......
Like an appendix ...
Walking towards the light

+1

4 August 2021 13: 01

Nothing has been written about weapons, it would be interesting to know.
Per se.

+8

4 August 2021 13: 04
The main difference from the previous generation "Soryu" is the rejection of the Stirling engine. Instead, new lithium-ion batteries are installed.

New lithium-ion batteries are installed in place of lead-acid batteries (on previous boats), not literally in place of Stirling engines. It is noted that lithium-ion batteries increase the speed and duration of low-noise underwater running on electric motors compared to traditional lead-acid batteries.

Currently, Japan is the only country in the world with submarines with lithium-ion batteries in its naval forces. Prior to this, Soryu-class boats were powered by two Kawasaki 12V 25 / 25SB diesel engines and four Kawasaki Kockums V4-275R air-independent Stirling engines.

What kind of VNEU is on the new boat is a question, but the boat will not go to sea on only batteries. The boat should enter service after completion and testing in 2022. Currently, Japan's Maritime Self-Defense Forces have 21 boats, and with the commissioning of the Taigi submarine, their number will increase to 22. The price of the new submarine exceeds $ 650 million.
1. Jacket in stock
  
  +3
  
  4 August 2021 13: 22
  
  Quote: Per se.
  New lithium-ion batteries are installed in place of lead acid (on previous boats), not literally in place of Stirling engines
  
  Literally.
  Moreover, the Japanese began to do this already on Soryu.
  
  The energy intensity of the new batteries turned out to be comparable to that of VNEU, respectively, and the sense in these styling has disappeared.
  1. Per se.
    
    +1
    
    4 August 2021 14: 09
    
    Quote: Jacket in stock
    Literally.
    On "Soryu" no one refused VNEU (four air-independent Stirling V4-275R engines manufactured by Kawasaki Kockums), I repeat.
    Secondly, it was the lead-acid batteries that were replaced, this is the main thing. The new lithium-ion batteries are more powerful, but they will still need recharging, that is, sooner or later, a complete ascent or ascent under a snorkel, on diesel generators. In this they will not completely replace VNEU for a long underwater run.
    If the Japanese decided to save money at VNEU, this is their problem, although no one can guarantee that VNEU has really been completely abandoned, that the information is complete and reliable. In any case, the diesel generators remain, otherwise the jokes in the comments about USB charging will not stop.
    1. Jacket in stock
      
      -1
      
      4 August 2021 14: 47
      
      Quote: Per se.
      Nobody refused VNEU on "Soryu"
      
      The last two were immediately made without stirling, on one (if I do not confuse it) from the already built one they took out.
      In any case, diesel generators remain
      that's it, in any, including with VNEU.
      The dimensions and weight that were occupied by the stirlings with cryo-equipment were simply filled with batteries and received almost the same power reserve.
    2. lynnot
      
      0
      
      4 August 2021 14: 57
      
      They will go for modernization or overhaul - we'll see.
  2. Ratmir_Ryazan
    
    0
    
    4 August 2021 14: 12
    
    It is unlikely that the capacity of lithium-ion batteries is comparable in terms of work with VNEU, rather the Japanese realized that the advantage of VNEU is not so significant against lithium-ion batteries, and besides, VNEU is more difficult to maintain than batteries.
    
    There was information that at the end of the last century, Norwegian diesel-electric submarines on American lithium-ion batteries could work under water for two weeks and not float. 20 days of work at VNEU is of course a little more, but not so important.
2. Stas157
  
  +2
  
  4 August 2021 13: 28
  
  Quote: Per se.
  What kind of VNEU is on the new boat is a question, but the boat will not go to sea on only batteries.
  
  Diesel-electric.
  
  https://nplus1.ru/news/2021/08/03/taigei
3. The comment was deleted.
4. Bad_gr
  
  +1
  
  4 August 2021 20: 36
  
  Quote: Per se.
  New lithium-ion batteries are installed in place of lead-acid batteries (on previous boats), not literally in place of Stirling engines.
  
  For those who do not remember what the Stirling engine is:
  it is an engine of external (like a steam locomotive) combustion, inside it drives gas from a cold region to a hot one, where, when the gas expands, work is done. And then in a circle, the gas is distilled into a cold area, compressed, and then into a hot area, where work is done again. This unit was invented by a monk and in his shed the engine, with a power of one horsepower, took up all the free space. As the townspeople said, he fed his monster with bats and kerosene. But it is not important. The inventor's working fluid was air at one atmosphere, in modern (from the data that I came across) the working fluid is helium at a pressure of 150 atmospheres. Hence, the efficiency is higher than that of a diesel engine. I am finishing my excursion into history.
  Question:
  why not make a Stirling engine with an atomic furnace as a heating element? After all, this firebox can be made quite compact. Gas enters it - the heated back gas required for operation, then into the cooler and again in a circle.
Jacket in stock

-1

4 August 2021 13: 29

In general, the crew of 70 people is a lot. On our Varshavyanka there are only 52. Are we more advanced in automation?
1. alch3mist
  
  0
  
  4 August 2021 13: 39
  
  In general, the crew of 70 people is a lot. On our Varshavyanka there are only 52. Are we more advanced in automation?
  
  Of course, they have better automation. It's just that half of the crew is pedaling.
lynnot

0

4 August 2021 14: 03

Ofigel from the innovative abbreviation "NAPL". In fact, the usual diesel-electric submarine. Well, maybe a new generation ...
Ratmir_Ryazan

0

4 August 2021 14: 05

The main difference from the previous generation "Soryu" is the rejection of the Stirling engine. Instead, new lithium-ion batteries are installed.

What a twist. Looks like VNEU is not such a necessity.
1. lynnot
  
  0
  
  4 August 2021 14: 36
  
  Probably, for use in a limited navigation area, the balance of battery characteristics defeated VNEU
Avior

-1

4 August 2021 15: 12

There are many questions about the new boats of the Japanese
1. The direct reason for the introduction of lithium-ion batteries can be seen simply - they are Japanese-made, support from a domestic manufacturer
2, this increased the cost of the boat by more than 20 percent compared to Stirling engines with the same range under water.
3. The fire hazardous nature of lithium batteries is beyond doubt - many people still remember the fire on the AC-31. And this is in peacetime.
4 without positive experience of operation by the Japanese, other countries do not abandon VNEU and are in no hurry to buy lithium batteries from the Japanese.
5 VNEU has a serious advantage in the form of the possibility of storing fuel outside a solid case - which is excluded in the case of lithium batteries
1. Jacket in stock
  
  0
  
  4 August 2021 15: 19
  
  Quote: Avior
  this increased the cost of the boat by more than 20 percent
  
  And the operating cost?
  The main thing is the total price.
  1. Avior
    
    -2
    
    4 August 2021 15: 31
    
    Who knows? There is no operating experience with lithium batteries yet.
123456789

0

4 August 2021 15: 50

The main difference from the previous generation "Soryu" is the rejection of the Stirling engine. Instead, new lithium-ion batteries are installed.

The Advanced Research Foundation announces acceptance of applications for participation in an open competition for the best technical solution in the development of high-energy batteries for electric propulsion systems (code "Sapphire").
Among the main objectives of the competition are to identify promising ways to create new generation batteries, assess the current state and prospects of domestic research and development in the field of creating electrochemical batteries with breakthrough values of specific energy intensity and identify organizations that have a scientific and technical groundwork that allows to obtain qualitatively new results in this area. ...
Denis812

0

6 August 2021 10: 02

70 people in IT?
There are 30 sailors and 40 rowers or what?
What are 70 people doing there?
AND WHERE are they all there?