The last in the series of diesel-electric submarines of the Soryu class for the country's Navy launched in Japan

In Japan, they launched the last diesel-electric submarine of the Soryu class, built in the interests of the country's naval forces. The ceremony was held at the Kawasaki Heavy Industries (KHI) shipyard in Kobe on November 6.

In Japan, the last Soryu class diesel submarine was launched for the country's Navy, called Toru (Fighting Dragon). The submarine is the twelfth submarine of this class, the sixth built at the Kawasaki Heavy Industries shipyard (six more submarines built at the Mitsubishi Heavy Industries shipyard) and the second in the series to receive lithium-ion batteries. According to the developers, these batteries have twice as much power compared to conventional lead-acid batteries.

The Toryu submarine was laid down in January 2017, the transfer to the Japanese Navy is planned in 2021.

The length of the NPS is 84 m, width - 9,1 m, height - 10,5 m, draft - 8,4 m, surface / underwater displacement 2950 / 4100 t, Crew - 65 persons.

The boat is equipped with a main power plant consisting of two Kawasaki 12V 25 / 25SB diesel engines and four air-independent power plants (VNEU) V4-275R produced by Kawasaki Kockums. The maximum speed in a submerged position - 20 nodes, in the surface - 12.

Armament: six 533-mm torpedo tubes with torpedoes "Type-89", "Type-80" and anti-ship missiles UGM-84C "Harpoon". The submarine is also equipped with PU firing targets.

It is noted that equipping an air-independent power plant reduces the visibility of the boat for sonar and is under water for about 14 days, unlike 4-5 days in diesel-electric submarines without VNEU. The submarine is also equipped with automated systems and GAS, allowing to increase the efficiency of reconnaissance.

Comments

[Lord of the Sith]

Wake-up call. They will crawl around our Pacific Fleet.

[Kote Pan Kokhanka]

Sadly, the Japanese rivet their fleet like pies! A little more and all this will splash out as aggression on our side !!!
Regards, Kote!

[The Siberian barber]

Why be sad, then?))
We, after all, every day they say and write: "WILL BE!" ... And boats, and EM, and a lot of things .. Over there, on "Shaposhnikov", they write that "Zircons" ..... WILL BE ..

[Nycomed]

And there "crawl" all and sundry, even North Korean poachers on junks.

[Civil]

The Japanese are not rushing, but systematically riveting their high-tech fleet. Very thoughtful nationalists.

[Sky strike fighter]

This is why it is high-tech? Why is Soryu better than our 636.3? They only have their own torpedoes, and so are American anti-ship missile launchers Harpoon (a la X-35U) and that's all. Soryu is not intended for striking ground targets, like our Varshavyanki from Kyrgyzstan Caliber.

[The Siberian barber]

That is, in your opinion, if a ship cannot strike on the shore, is it not high-tech ??)
For PL, there are other characteristics that determine "advanced" besides the ability to work on the ground

[AAK]

The samurai have a normal fleet, the oldest surface ships in combat are the Abukuma-class frigates, quite useful anti-submarine ships, all other EMs, incl. aircraft carriers and frigates are much more advanced. Submarines of three types - also almost three dozen, which is quite enough for Japan, especially since they do not really need PALKR for potential opponents. Plus a very serious UAV with very good airplanes, to which Russia, alas, still has "... three days in the forest, two days in the field and on Monday - to the left ..." In terms of real combat capabilities, the Japanese fleet is one and a half to two Pacific Fleet, as well as the Japanese have very large forces in the coast guard, with the possibility of installing additional weapons during the war period and using them as security forces for OVR

[Greenwood]

Another age of their ships is worth noting. Vessels of the late 80s-early 90s, which are actually the latest at the Pacific Fleet, they have the oldest and are actively decommissioned and withdrawn from the Navy. Most of the ships in the fleet are built in the 2010s.

[Good_Anonymous]

Quote: Sky Strike fighter

Why is Soryu better than our 636.3?

As is obvious from the article, they have better batteries. And, quite likely, HOOK.

[Operator]

Why did this submarine with lithium-ion batteries and Stirling engines with snorkel suddenly become VNEU?

PS Separately delivers the Japanese "stealth technology" with an open propeller and corner reflectors in the form of a 90-degree camber with horizontal rudders or aft rudder planes.

[Karaul14]

So the Swedes of VNEU have boats with Stirling engines too, what is unusual here? And, if I'm not mistaken, the main method of detection by water is not related to radar. Why does everyone think of themselves as some kind of unrealistic experts?

[knn54]

By the way, the Japanese make VNEU using Swedish technology, they did not bother and bought a license
There is another point, the Japanese have very reliable LIABs.

[Operator]

Do you understand the meaning of the Japanese term snorkel system and its difference from the Swedish air independent propulsion (with one additional low-power Stirlig, and not the two main high-power Stirlings, like the Japanese)?

But does the sonar sonic radiation not exactly interact with the corner reflector exactly like electromagnetic radar?

PS "... ...", - Lavrov (C)

[Vladimir_2U]

The article is certainly clumsy, but it clearly states that
"The boat is equipped with a main power plant consisting of two diesel engines ........ and four air-independent power plants (VNEU) V4-275R"
Snorkels for diesels and not for Stirlins, so the VNEU boat.
The corner reflector actually has 3 planes.
The range of active ASGs is several times, or even tens of times less than the radar, and for a passive ASE along the drum, an angle reflector or no reflector. )))

The authors of the article were delighted: "Equipping with an air-independent power plant allows you to reduce the visibility of the boat for sonars."

[Good_Anonymous]

Quote: Vladimir_2U

Equipping an air-independent power plant reduces the visibility of the boat for sonars

In the West, passive detection systems are also called "locators".

[Vladimir_2U]

Well, in the west, they may call it, although it is more likely some kind of "acoustic sensor", while our locator is something emitting, without options. In general, a clumsy article, again the class is confused with the type, the level of "iksperd" is already clear.

[Good_Anonymous]

Quote: Vladimir_2U

class with type confused

What's the difference?

Quote: Vladimir_2U

already the level of "xperd" is clear.

The expert also attributed the VNEU boat, which is not there.

[Vladimir_2U]

...., then Gotland-type submarines became the first production boats with Stirling engines that allow them to stay under water continuously for up to 20 days ...... Engines that run on liquid oxygen, which is used later for breathing, have very low noise level, and the above-mentioned disadvantages (size and cooling) in the submarine are insignificant.
The newest Japanese submarines of the Soryu class are equipped with 4 Kawasaki Kockums V4-275R Stirling engines, 8 hp, "
Quote from wiki
https://ru.wikipedia.org/wiki/%D0%94%D0%B2%D0%B8%D0%B3%D0%B0%D1%82%D0%B5%D0%BB%D1%8C_%D0%A1%D1%82%D0%B8%D1%80%D0%BB%D0%B8%D0%BD%D0%B3%D0%B0
If this is not about VNEU, then what about VNEU, thermonuclear?
Diesel submarine class, nuclear submarine class, destroyer class, "Soryu" type, "Los Angeles" type, "Arleigh Burke" type. Something like a mining dump truck (class) Belaz-conditional index (type).

[Good_Anonymous]

Quote: Vladimir_2U

The newest Japanese submarines of the Soryu class are equipped with 4 Kawasaki Kockums V4-275R Stirling engines, 8 hp, "

On the first 10 boats of the series - yes, VNEU based on the Stirling engine is installed. The last two boats have lithium-ion batteries, but there is no VNEU.

Quote: Vladimir_2U

If this is not about VNEU, then what about VNEU, thermonuclear?
Diesel submarine class, nuclear submarine class, destroyer class, "Soryu" type, "Los Angeles" type, "Arleigh Burke" type.

The Americans call Arly Burke a class: https://www.stripes.com/news/us/navy-asks-congress-for-three-new-arleigh-burke-class-destroyers-in-2020-budget-1.599703

[Vladimir_2U]

And do not repeat the ignorant Americans for the ignorant Americans, if Arly Burke is a class, then why add Destroyer?

[Good_Anonymous]

Quote: Vladimir_2U

And do not repeat the ignorant Americans garbage

This "bullshit" is their standard terminology. By the way, Americans also call "litter" a class.

[Vladimir_2U]

But what about the Type 45 destroyer, for example? Does "Type 45 class destroyer" sound normal? It's like with "Accuracy to the opposite", advertisers have thrown in for a catchphrase, and many mindlessly repeat outright stupidity. In their "standard terminology" "Voivode" is "Satan" and so on. In domestic practice, there is a class, there is a type (project), to produce Americanisms and without us narrow-minded journalists are able to. ))

[Potato]

You are illiterate)) I am translating the text of the link: the Navy asked Congress for three new destroyer-class airliners in 2020.

[Good_Anonymous]

Hello, brain.

[Nycomed]

And what is the construction period of our "Varshavyanka"?

[Lord of the Sith]

Two to four

[rocket757]

All the same, the army and the navy is an addition \ defense of the state with all its "guts" !!!
There is no state, everything else "dies" automatically.
It is necessary to be able to manage the very foundation ... and this is by no means some boats and the army in general.
That's what the world rests on, at least between the serious "guys"! The rest are mostly observers ....

[Chaldon48]

Since there are air-independent power plants, you probably would not have risked installing fireproof lithium batteries.

[Good_Anonymous]

Quote: Chaldon48

Since there are non-volatile power plants

On the last boats (with lithium-ion batteries) they are not. The information in the article is incorrect.

[Babermetis]

Shikoko Shikoko took time to build, huh?

[Old26]

Quote: Nycomed

And what is the construction period of our "Varshavyanka"?

It's not even about the construction time, but about how much 636.3 can be submerged, unlike this "Japanese woman"

[Kerensky]

Coming, coming a mighty hero .... pah! Technological breakthrough. The Japanese will remove regular batteries from 12 sides and drive new ones. Then we'll see. So what to say? Well done. Re-equipping a boat, compared with the construction, is a trifling matter.

[Grad-Xnumx]

Well done Japanese!

[rruvim]

Cool "fish". Lithium ion plus "stirring" and 20 knots underwater, guaranteed to make it possible to get to and from the west coast of the USA. A worthy replacement for the Sentoku submarines of the Second World War.

[Good_Anonymous]

Quote: rruvim

20 knots under water,

20 knots is the maximum speed. A boat can support her for an hour or two.

Quote: rruvim

guaranteed to give the opportunity to get to the west coast of the United States and return back.

If you are about to fight with America, then the return also depends on the American PLO

[rruvim]

Any Japanese officer wants to fight America. "Nothing is forgotten, no one will forgive!" Regarding the PLO: the US simply does not have it on the west coast. SOSUS is only in the Atlantic and then on conservation.

[Good_Anonymous]

Quote: rruvim

Regarding PLO: on the west coast, the USA simply does not have it

Did the States in the Pacific run out of PLO ships and hunter boats?

Quote: rruvim

SOSUS is only in the Atlantic and then on conservation.

That is, there is no PLO in the Atlantic either. States about * all polymers.

[rruvim]

I'm talking about stationary sensors. The PLO buoy can also be dropped from a helicopter. There was some humor in my post on the Japanese. EPLs of the "Soryu" type, underwater, are redundant against the Pacific Fleet or China, the "samurai" swung for more.

[Good_Anonymous]

They have China on their side. If anything, we'll see a match between the Premier League and DEPL.

[rruvim]

"SORY" is more serious than the nuclear submarine. Moreover, "SORYU" is an EPL in its purest form. For this, and several VNEU on board. The advantage over the nuclear submarine is its size and low speed. You can't hide a nuclear reactor. Coolers still leave a heat trail in the water column.

[Good_Anonymous]

Quote: rruvim

"SORYU" is an EPL in its purest form.

What does "clean" mean? There diesel and snorkel, as on all diesel-electric submarines.

Quote: rruvim

In order to several VNEU on board

On the last boats there is no VNEU. On 29SS they will not be from the very beginning.

[Chicha squad]

And we, due to the lack of a private educational institution, are satisfied with the Varshavyanki. Many admirals claim that Varshavyanka is a morally obsolete boat today. Yes, quiet, and more about her, no one can say anything.

[Operator]

Quote: Vladimir_2U

Snorkels for diesels and not for Stirlins, so the VNEU boat. The corner reflector actually has 3 planes

On the last two Japanese diesel-electric submarines there are no Stirlings at all (unlike the first ten submarines), the GCU includes only diesel generators and electric motors. An increase in the underwater travel time is achieved by replacing lead-acid batteries with lithium-ion ones.

When irradiated from certain angles, an angular reflector of two perpendicular planes is quite sufficient. Therefore, for airplanes and submarines with reduced location visibility, the fuselage / hull planes, wings and rudders intersect at angles other than 90 degrees.

[Vladimir_2U]

Well, yes, I ran through more serious publications, the 11th and 12th type "Litter" strictly on batteries. Diesel seems to have been left just in case, although recharging in favorable conditions, why not. By reducing the visibility, the wheel rudders do not form 90 degrees. with a wheelhouse, this is clearly visible, and the aft rudders are strongly diluted by the end of the hull, i.e. steering wheel, quarter-circle body segment, steering wheel again. And whether, in this case, a corner, albeit incomplete, reflector will turn out is a baaal question.

[Operator]

The cruising range in diesel mode of a Japanese submarine differs by an order of magnitude from the cruising range on lithium-ion batteries.

The new Japanese submarine project provides for the abandonment of chopping rudders in favor of retractable bow and rudder collapse angle.

[Vladimir_2U]

It is a pity that secrecy is in vain. ) I do not insist, but I remember well that the chopping wheels are less effective than those installed on the hull with an equal area. And yet, I think that the effect of a corner reflector on a submarine can be neglected.