The project 971 series of multipurpose nuclear submarines: features

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2020-05-03 15:00:35

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Submarines have long been the main striking force of our fleet and the means of countering potential enemy. The reason is simple: with aircraft carriers, our country historically did not work, but the missiles launched from under water, can be guaranteed to hit any point on the globe. That is why in the Soviet Union has attached great importance to the development and creation of new types of submarines. At the time, the real breakthrough was the project 971, which created a multipurpose low noise ships.

New “Pike»

project 971In 1976 the decision was made to design and build new submarines. The task was entrusted to the notorious enterprise "malachite", which is always expected nuclear fleet in the country. A feature of the new project is that its design was fully drawn developments on "the Barracuda", and therefore the preliminary design phase and many calculations were skipped which significantly reduced the cost of the project and accelerate its part of the work.

Unlike the "ancestors" family 945, the project 971, at the suggestion of engineers from Komsomolsk-on-Amur, do not assume the use of titanium in the housings. This was not only due to huge cost and scarcity of this metal, but with a monstrous volume of work with him. In fact, to pull such a project could only «Sevmash», which was fully loaded. The slips have already been sent the first components… how intelligence was given information about the new American submarine of “Los Angeles». Because of this, the project 971 was immediately sent back for revision.

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In 1980, the year it was completed. Another feature of the new "Pike" was that most of the work for their design and creation was carried out in Komsomolsk-on-Amur. Before Pacific shipyards were in the position “Desperado” and perform only the functions of the slave.

Other features of the project

Few people know about this historical fact, but in the early 80-ies of our country purchased from Japan products Toshiba - high-precision machine tools for working of metal, which allowed to make new screws manufacturing when you work a minimum of noise. The deal itself was highly classified, but the US, by that time, almost "colonized" of Japan, learned about it almost immediately. As a result, the company “brother” even under economic sanctions.

 971 Shchuka bThanks to the screws and some other design features, the project 971 is different from the striking silence of swimming. This is largely due to academician A. N. Krylov, who for several years worked on the reduction of noise of submarines, being involved in the creation of "Barracudas". The efforts of the honored academician and a team headed by research Institute was not left without reward: the boats of project 971 “Pike-B" noise several times less than the latest us «Los Angeles”.

The Purpose of new submarines

The New submarine was able to adequately meet any opponent, as their impact weapons and its diversity amazed even seasoned moreman. The fact is that “Pike-B" was to destroy surface ships and submarines, to setting min, to conduct reconnaissance and commando raids, to participate in special transactions… in short, do everything to justify the feature “multi-purpose submarine of project 971 “Pike-B»».

Innovations and ideas

As we said, the initial construction of submarines of this type had to adjust. The only weak link of our submarines compared to their American counterparts was the lack of a digital complex filter interference. But the General combat characteristics of the new "Pike" they are still heavily outnumbered. For example, on their arms was the newest anti-ship missile "Garnet", allows, if necessary, much decimate any surface ship grouping.

But after the “elaboration file" 1980 "Pike" of the received digital complex processing interference “Skate 3”, as well as the latest guidance systems, which made use of the most advanced cruise missiles. Was first achieved integrated automation of controls, combat and the weapons were massively introduced in the design of a special pop-up capsule for the salvation of the entire crew, which was successfully tested on "the Barracuda".

Design features

submarine of project 971As with all major submarines of the Soviet Union of this class, submarines of project 971 used classic dvuhkonusnyh scheme. For the first time in the history of the “underwater” shipbuilding was widely used experience block-articulation of fragments of the submarine, which allows to perform most of the work in the comfort of the shop. Widely used as zonal units of equipment which, after installation, just connected with the centralized bus systems.

How did you manage to reduce the noise level?

In Addition to the special screws, which we have repeatedly mentioned, used a special system of depreciation. First, all mechanisms are mounted on a special“foundations”. Second, each zonal unit has another system of depreciation. This design resulted in not only significantly reduce the volume of noise generated by the submarine, but additionally to protect the crew and equipment of the submarine from the action of shock waves produced in the explosions of depth charges. So our fleet, submarines which almost always was the main striking force received a significant “argument” to deter a potential enemy.

Like all modern submarines, "Pike" have developed keel plumage with an outstanding bull, which is towed antenna radar system. The peculiarity of the plumage of these boats is that it is made as if a single entity with the power elements of the main body. All this is done in order to minimize the number of twists. The latter may put on the trail of the ship in underwater acoustics of the enemy. These measures have produced its legitimate fruit: "Pike" are the most stealth of underwater vessels to date.

Dimensions of the submarine and crew

Surface displacement of the ship is 8140 tons, underwater - 10 500 tons. The maximum length of the body is 110,3 m, width does not exceed 13.6 m Average sediment on the surface is approaching to ten meters.

Due to the fact that in the construction of boats applied massively different solutions for integrated automation control her, the crew was reduced to 73 people, compared with 143 American members of the crew (at “Los Angeles”). If you compare the new “Pike” with the preceding species of this family, was vastly improved conditions of life and work of the crew. By reducing the number of the latter also introduces the ability to place people in two of the most protected bays (residential).

Power plant

submarines of project 971The Heart of the ship is the reactor with a capacity of 190 mW. Is composed of four steam generators and one turbine, control and mechanization which duplicated many times. The power granted to the shaft, is 50 000 HP Screw – seven-bladed, with a special section of the blades and reduced rotation speed. The maximum speed of the ship under water, if translated in a clear “land” values greater than 60 km/h! Simply put, the boat can move in a dense medium faster than many sport yachts, not to mention the heavy warships. The thing is that the hull of the boats was developed the whole "battalion" of the academicians, with numerous works in the field of hydrodynamics.

Detection of enemy ships

The Real highlight of the new "Pike" was a complex MGK-540 “Skate 3”. He is able not only to screen out interference, but also to detect bearing noise from the propellers of any ship. In addition, “Stingray” can be used as a conventional sonar when passing a stranger to the fairways. The range of detection of enemy submarines increased three times in comparison with submarines of previous generations. In addition, “Stingray” much faster defines the characteristics of the objectives and forecasts at the time of contact.

A Unique feature of any submarine of project 971 is setup to detect any surface ship leave them at the Wake. The instrument calculates radiating from him in waves even a few hours after the passing of a vessel in this quadrant that allows a concealed tracking naval groups of the enemy at a safe remove from them.

Characteristics of arms

The Main strike force are four missile-torpedo tubes caliber 533 mm. But much more impressive look four the installation of 650 mm caliber TA. Total on Board the submarine can be up to 40 missiles and/or torpedoes. "Pike" can fire missile "Garnet" and "Barrage" of the is equally effective in surface and submerged positions. Of course, there is the ability to fire conventional torpedoes and release from torpedo tubes automatic mines, which are placed in the firing position.

In addition, this submarine can be set and conventional minefields. So the range of weapons is very broad. When you launch cruise missiles and their guidance and support occur in completely automatic mode, without distracting the attention of the crew from performing other combat tasks. Alas, in 1989, after the conclusion of the extremely unprofitable for our country agreements with the Americans, the submarines of project 971 go on duty without “Pomegranates" and "Vortices", as these weapons can carry a nuclear warhead.

The Importance of "Pike" for domestic shipbuilding

 submarine of project 971As we said, these submarines became the first independent project of the shipyards of the Far East, which first received a government order of such complexity and importance. Boat K-284, which has become the flagship of the series, was founded in 1980 and four years later entered service with the fleet. During the construction of the design quickly made the small repair, which was a full-time used to create all subsequent submarines.

Already during the first tests the sailors and members of the Ministry of defence was in awe of how noise wassubmarine. These figures were so good that they allow with full confidence to speak about the release of a Soviet ship to a new level. This turned out to be quite agree to the Western military advisers, who acknowledged "Pike" weapons of the new class and gave them the cipher Akula.

Due to its features of submarines of project 971 can overcome antisubmarine defense in depth, is equipped with a standard means of acoustic detection. Given the powerful weapons, the submarine could stand up for themselves even in the case of its detection.

Even in the area of domination of the enemy of quiet nuclear submarines of project 971 can inflict considerable losses, up to the shelling of the coastal goals by means of nuclear annihilation. "the Pike" it is on the back surface ships and submarines, as well as the destruction of strategically important command centers, even if located at considerable distances from the coastal zone.

The Value of the project “Pike-B” for our country

The Emergence of the nuclear submarine of project 971 has confused Americans all the cards. They rightly believed their offensive surface forces are the strongest in the world, and the Soviet fleet, which had significantly less surface ships, their experts have estimated quite low. “Pike” come to a whole new level of the game. They can work even in deep behind enemy lines, going over the line ASW. In the case of a full-scale war against nuclear attack from under the water, not insured by any one command center, and even full-scale destruction of sea lines of communication and say no.

Any offensive potential enemy in such conditions is converted into an analogue dance in a minefield, and nothing about the surprise attack you can forget. The US government “Pike" (especially upgraded) very concerned. Already in 2000, they repeatedly attempted to break through a legislative agreement on a strong restriction of their use, but the interests of the Russian Federation to such "mutually beneficial” agreements do not have.

Modifications and further development of the project

pike of the project 971Subsequently “Pike" (project 971) has been improved, especially in terms of sonar stealth. Especially different from other court “hog” and “Dragon”, built on an individual project 971У. They are immediately noticeable in the modified hull lines. The latter was lengthened from four meters, which allowed staff to place additional equipment for direction finding and apply new design solutions aimed at reducing the level of noise. More than half a ton has increased the displacement on the surface and underwater positions.

Much has changed and the power plant, which feeds reactor, model OK-650Б3. The changes were so obvious that a new multipurpose nuclear submarine in the foreign media was immediately christened the Improved Akula. The same project was to build four submarines, but in the end the shipyard was founded and created only two of them. First of all is-335 ‘Cheetah’, was generally built on special projects 971М, for use in the design of the latest achievements in electronic industry.

This boat in General has become for Western sailors known as Akula II, as it differs from the base of the project was striking. The second completed submarine, i.e. K-152 “Nerpa” also created special project 971И originally prednaznachalas to lease the Indian Navy. Basically “Nerpa” differs from its “fellow” simplified electronic filling, in which there is no secret components.

Continuity of generations

Initially, all boats of this series had only the index, not oboznachaet with proper names. But in 1990, K-317 was given the name “Panther”. It was given in honor of the submarine Russian Empire, which first opened a military account. In the future, “will” became the Premier League «Tiger» project 971. Soon, all submarines of this family also received names related to the designations of the ships that were part of the Imperial and Soviet Navy. The only exception to that is the project 971, “Kuzbass”. Previously, this ship was called the "Walrus". First, it was named in honor of one of the first submarines of the Empire, but subsequently honored the memory of Soviet sailors.

But most significant were the submarine, released on Sevmash. The whole series has received the code name «bars». For this, all the submarine project has been in the West the nickname “cats”.

“Voloboeva" work

During the NATO aggression against Serbia in 1996, K-461 “Wolf” carried on combat duty in the Mediterranean sea. American hydroacoustics was able to pinpoint her location during the passage of the Strait of Gibraltar, but our divers have managed to escape them. To rediscover “Wolf” was only directly off the coast of Yugoslavia. In this battle the submarine was covered by domestic aircraft carrier «Admiral Kuznetsov" from potential aggressive actions of “Western partners». At the same time, “Wolf” spent trailing six submarines of NATO, which was one boat “competing” type “Los Angeles”.

In the same year, still one “Pike-B”, which was under the command of A. V. Burilichev, carried on combat duty in the watersThe Atlantic. There the crew found SSBN of the US Navy, and then secretly accompanied the ship throughout its combat duty. If it was in the context of war, an American submarine went to the bottom. Command knew all this perfectly well, but because Burilichev immediately after the “business trip” received the title of hero of the Russian Federation. This is another indication of the high fighting qualities and secrecy of any submarines of project 971.

About the cases of appendicitis in the sea…

At the end of February of the same 1996 and all have been anecdotal case. Then just held large-scale exercises of NATO fleet. Order anti-submarine ships only just managed to get in touch with the command and to report on the lack of submarines of the potential enemy in the course of the convoy… in a few minutes with the English ships had contacted the commander of the Russian submarine. Shortly before a crazed British sailors came up and she “bride”.

The Crew reported that one of the sailors is in a serious condition due to ruptured appendicitis. In terms of submarines, the success of the operation was not guaranteed, and therefore the captain made the unprecedented decision on relations with foreign colleagues. The patient was quickly loaded onto a helicopter the English and sent to the hospital. I felt at this moment the British Navy has just reported about the absence of enemy submarines, it is difficult to imagine. What is even more interesting, they were not able to detect the submarine project 971 old series! Since then, the project 971 “Shark” is highly esteemed by the Navy.

Current status

Currently, all submarines of this series are in the ranks, serving in the Pacific and Northern fleets. The above mentioned “Nerpa” is serving in the Indian Navy and, under the terms of the contract, will be there till 2018. It is possible that after this the Indians would prefer to extend the contract, as they appreciated the fighting qualities of the Russian submarine.

nuclear fleetSpeaking of which, the Indian Navy “Seal” called Chakra. Interestingly, earlier the same was the name of the boat 670 “Stingray”, which is also on lease served India in the period from 1988 to 1992. All the sailors stationed there have become real professionals, and some officers from the first “Chakra” has already promoted to admirals. Whatever it was, but the Russian "Pike" are now widely used in the difficult task of combat duty and serve as a guarantor of the state sovereignty of our country.

Today, when the fleet slowly recovering after 90 years, there are talks about the fact that nuclear submarines of the fifth generation should it be based on the development of the project 971 as the court in this series managed to repeatedly prove their potential. Themselves "Pike" correspond to the parameters, the submarines of the fourth generation. Indirect confirmation of this is the fact that they repeatedly lied to sonar detection system SOSUS, which created many problems to the Soviet seamen.


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UK: https://tostpost.com/uk/b-znes/40473-proekt-971---ser-ya-bagatoc-l-ovih-atomnih-p-dvodnih-chovn-v-harakteri.html

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Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

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