Multipurpose nuclear submarines of Project 885 Ash

Head multipurpose nuclear submarine (SSGN) 4th Generation "Severodvinsk" Project 885 of the "Ash", armed with cruise missiles, in November 2012, will proceed to the municipal programmke sea trials. According to the results of these tests Commission will be required to sign a deed in December for admission Underwater boats in the Russian Navy. At the current time SSGN "Severodvinsk" is factory running tests at once with this at the "Sevmash" was scheduled prostrelka torpedo boats. For the latest weapons PLA has made 3 cruise missiles "Movement" in the version with a range of 2,500 km. The supersonic version of the missile with the ordinary or nuclear warhead on a flight to the line of movement of ground or surface target flight profile changes course and altitude, with all this speed of flight of a missile after its separation further increases and approaches the hypersonic, which makes it very terrible weapon.

Cruise missiles "Movement" — is a precision instrument that is designed for the most part, to counter enemy aircraft carriers. In accordance with the signed USC and Defense Ministry contract under the state program of armaments 2020 Russian fleet should get 7 SSGN like "Ash", with all this, six of the submarines will be built to improve the draft 885M. The head of modernized boat series is "Kazan". With all of this, this boat will be the first PLA 4th generation, which will get a completely new technical equipment that has no analogues in Russian shipbuilding.

In contrast, preparing for the reception of the Russian Navy strategic missile 4th generation of the "Northwind" — SSBN "Yury Dolgoruky" and "Alexander Nevsky", in which for the first time applied to their techno inside the order of 40%, in the multi-purpose submarines "Kazan" Project 885M all nodes, systems, and arrangements will be entirely new, never before applied. According to the defense, it is a completely new, high-tech equipment, which has no analogues in the modern Russian and Russian shipbuilding. According to their performance characteristics of PLA "Kazan" should be comparable with the sverhtehnologichny and at the same time expensive submarine in the world — the U.S. attack submarines of the "Sivulf", with all this noise level and a number of other criteria, she even overtake an opponent.

The total price 7 submarines of Project 885 "Ash" exceeds $ 200 billion. rubles. According to sources, disk imaging, ITAR-TASS, one of PLA 885M project is 1.5-2 times more expensive submarines of Project 955 "Borey".

Multipurpose nuclear submarines of Project 885 "Ash"
Winged rocket "Calibre"

Description submarines of Project 885 "Ash"

Work on the creation of submarines belonging to the 4th generation, the Soviet Union began immediately with the United States in 1977. Initially planned to create several types of boat: multi-purpose, protivoavianosnoy, anti-submarine. But later it was decided to limit ourselves to a multi-purpose submarine, which would be capable of dealing with a very likely range of tasks. The design of the submarine was engaged CB "Malachite", which had provided the experience to create a successful attack submarines. Bimbo PLA project has received 885 code "Ash", NATO reporting name — «Granay». Bookmark the lead ship series "Severodvinsk" accomplished 21 December 1993 on the "Sevmash" in the town of Severodvinsk. The construction of the boat because of the very ugly financing was very leisurely. 12 September 2011 to head the boat-329 "Severodvinsk" for the first time out to sea for sea trials.

The main properties of PLA Project 885: great length — 120 meters, width — 15 meters, depth — 10 meters. Total displacement — 11 800 tons. Large underwater speed — 31 knots. The boat crew — 90 people (32 officers). Boat armed with a pop-up rescue camera that can accommodate the entire crew.

Project 885 submarines are built on a single shaft scheme. Strong housing boats — metal. Nuclear power plant data refers to the submarine reactors 4th generation. Reactor power is 200 MW. The reactor was built by the integrated assembly scheme. The advantage of this solution is the localization of the primary coolant in a separate enclosure candy bar, the lack of pipelines and large diameter pipes. This scheme involves the use of equipment that has the very highest reliability. According to the views of some professionals, the new reactors are able to serve a long time without reloading. The service life of new reactors is estimated to be 25-30 years old, in other words, is comparable with the lifetime of most of the submarine.

Multipurpose nuclear submarines of Project 885 "Ash"

SSGN-type "Ash" polutorakorpusnoy own design with a lightweight body exclusively in the bow of the boat, also with the add-in missile silos. Strong metal housing submarine is divided into 9 sections. In the first compartment is located central office with access to a strong felling — pop rescue chamber, hardware equipment sonar system and battle stations. Around the first compartment and the boat forward of the bow he placed a group of brain ballast tanks (CCH, only 5 tanks). In the 2nd compartment placed breech of torpedo tubes, and racks with ammunition. And here is the drive sliding devices and partly other accessories boat. In the 3rd compartment of the boat on a 4-taken by ship's decks and various instrumentation equipment such as diesel generators, pumps, transformers, chillers. Fourth slot is allocated to residential and medical facilities, and some auxiliary systems. Compartments from 2nd to 4th inclusive account for about 40% of the entire length of the submarine's hull strong and do not have the outer hull, and add just a touch. For these compartments strong housing receives a substantial narrowing and twin-fulfillment. Fifth compartment PLA — rocket. In the area of the bay is a frisky dip tank and the average group CCH (4) tanks. Second bay boat — reactor around it is a special balancing tank, which is needed to keep the boat in depth during the missile firings. In the seventh (turbine) compartment of the equipment of steam turbine, turbo-autonomous, and other energoooborudovanie. Around this compartment is placed aft CCH group (of 5 tanks). The eighth compartment submarine used to house mechanical, ship's equipment, as it is located aft hatch behind which the steering compartment with hydraulic feed tail boat.

The entire nose of the PLA such as "Ash" is selected for placement of large spherical antenna sonar system. For the fairing of the antenna above the waterline are structural nasal hydroplanes boats. Empennage submarines made by the traditional cross pattern. The submarine received quite a longish enclosure sliding devices "Limousine" forms with built-in pop-up rescue chamber.

Strong submarine hull is made of magnetic steel (with a width of 48 mm). The assembly of the boat is block method with the use of iron rope dampers, which are used instead of conventional
pneumatic rubber-cord. Ship equipment installed zone block on special strong frames. The new version of block assembly power plant cooling systems also, power supply, auxiliary equipment has permitted to reduce the noise level by 10-15 dB boats.

The design of the boats used vibration-absorbing laminated beams, elements of air ducts and pipes, stanchions, which reduce noise by 10-30 dB. All the equipment is mounted on vibration absorbing cellular scaffolds made of composite materials. With all of this, each structural unit is further coated with soundproofing panels. The case itself is covered with a rubber protivogidroakusticheskim PLA coating that reduces noise boat, also reduces the reflection of the sonar signals. Also on the "Ash" is used a system of active noise cancellation in the limit of discrete frequency components of 50-500 Hz. To reduce the noise the boat at slow speeds of movement applies only propulsion motor at the same time turbozubchaty main unit is connected via a coupling only on high-speed modes.

Multipurpose nuclear submarines of Project 885 "Ash"

Underwater boat Project 885 is built on the single-line diagram and armed with a 7-blade propeller low noise, having a scimitar-shaped blades (with composite damping). Has a fixed pitch propeller. Also, the boat has 4 reclining thrusters and bow hydroplanes with the flaps are likely to pull.

The main armament of PLA are vertical launch cruise missiles. On Underwater 8 boat placed launchers SM-346 (4 per side) for 24 anti-ship missiles P-800 "Onyx". It may also be the use of missiles 3M14 "Movement" and 3M54 "Turquoise". To pair on board the submarine different missile systems was created universal naval fire control system 3P-14P, which ensures the combat readiness of missile systems to the boat launch from a cold state of the equipment for 4 minutes. Along with this was a unified set of equipment and the ground, which designed for routine maintenance of missiles.

In addition to cruise missiles armed with torpedo boats are different. "Ash" has 10 torpedo tubes (5 per side) 533 mm. Ammunition torpedoes — 30 pieces: USET-80, "physicist-1" (UGST) and others also KRBD RK-55 "Granat" or "Turquoise", or PLRK "Waterfall", also mine. Torpedo boats are in the central part of the case for the central station. The submarine likely setting 533-mm one-time non-rechargeable PU funds sonar countermeasures such as REPS-324 "barrier" for the introduction of self-propelled anti-sonar devices (simulators submarines) MG-114 "Beryl" and MG-104 "Throw".

Project 885 submarines are equipped with combat information and control system "District" that connects voedinyzhdy real-time monitoring of disk imaging able to ship, all combat systems, disk imaging by means of surveillance and target acquisition. Work CICS is provided by a digital computer. "District" will be able to send and receive information from other ships using sonar secure data transmission systems.

Sources disk imaging:
-http://army.lv/ru/proekt-885/709/759
-http://www.submarinaa.narod.ru/885.html
-http://vpk-news.ru/articles/9273
-http://ru.wikipedia.org/wiki

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