Yasen Class Submarine


Yasen-class submarines were designed by the Malakhit Central Design Bureau, formed by the combination of SKB-143 and TsKB-16, with work on the initial design scheduled for start in 1977 and completion in 1985. Malakhit is one of the three Soviet/Russian submarine design centers, along with Rubin Design Bureau and Lazurit Central Design Bureau.
Construction on the first submarine started on 21 December 1993 with its launch slated for 1995 and commissioning for 1998. However, the project was delayed due to financial problems and it appeared during 1996 that work on the submarine had stopped completely. Some reports suggested that as of 1999 the submarine was less than 10 percent completed. In 2003 the project then received additional funding and the work of finishing the submarine continued.

In 2004 it was reported that the work on the submarine was moving forward, but due to the priority given to the new SSBN Borei-classsubmarine, Severodvinsk, the lead unit of the Yasen class would not be ready before 2010. In July 2006 the deputy chairman of the Military-Industrial Commission, Vladislav Putilin, stated that two Yasen-class submarines were to join the Russian Navy before 2015.

On 24 July 2009, work commenced on a second Yasen submarine, named Kazan. On 26 July, the Russian navy command announced that starting in 2011, one multipurpose submarine would be laid down every year, although not necessarily of this class.
An August 2009 report from the U.S. Office of Naval Intelligence estimated the Yasen-class submarines to be the quietest, or least detectable, of contemporaneous Russian and Chinese nuclear submarines but is still not as quiet as contemporary U.S. Navy submarines (i.e. Seawolf and Virginia classes).

In April 2010 it was reported that the 7 May launch of the first boat had been postponed due to 'Technical Reasons'. The launch of the first ship of this class and the beginning of sea trials was reported in September 2011.
K-329 Severodvinsk went on her first voyage in September 2011 in order to conduct sea trials.

On 9 November 2011 Russia signed a contract for 4 Yasen-class submarines to be delivered by 2016. On 26 July 2013 the third submarine, Novosibirsk, was laid down.
On 30 December 2013 the first submarine, Severodvinsk, was handed over to the Russian Navy. The flag-raising ceremony was held on 17 June 2014 marking its introduction into the Russian Navy.
The second submarine of this class, the Kazan, was laid down in 2009. It is an improved project Yasen-M boat, fitted with improved electronic systems. Considerable changes were made to its design, as this boat has been laid down 16 years later than the Severodvinsk.
In 2013 another submarine of this class, the Novosibirsk, has been laid down. It is also an improved project Yasen-M boat. Sources from the Russian MoD claim that at least three more submarines of this class are planned. All submarines will be built at SEVMASH naval yard in Severodvinsk.
The Graney class is larger than the previous Akula class. Armament of this submarine includes 24 vertical launch tubes for various cruise missiles. Cruise missiles include the P-800 Oniks (SS-N-26), which has a range of about 300 km. These multi-purpose submarine are capable of striking costal targets. Improved Yasen-M boats might have more vertical launch tubes.
Also there are eight 650-mm torpedo tubes for torpedoes and anti-ship missiles. Some sources report, that a total of 30 torpedoes and anti-ship missiles are carried. Mines can be carried in place of torpedoes. It is worth mentioning, that torpedo tubes are fitted behind the compartment of the central station. Some sources report that there are also two 533-mm torpedo tubes.Hull of this submarine is made of low magnetic steel, with a spherical bow sonar. It is considered that the Graney class are only slightly quieter than the improved Akula class.
It is reported that this submarine has a crew of only 50, suggesting a high degree of automation. However other sources claim, that these boats have a crew of 90 submariners, including 32 officers.
The Graney class submarine has a single pressurized water reactor. Reactor has a service life of about 25-30 years and do not has to be refueled. Sea endurance of these boats is limited only by food supplies.
It was speculated that the cost of the first Yasen-class submarine was around US$1 billion, although another source claims that the price was actually US$2 billion. Recent reports from unnamed sources speculate that the first-of-class (Severodvinsk) unit cost was 50 billion rubles (roughly US$1.6 billion) while the second boat (Kazan) will cost an estimated 110 billion rubles (US$3.5 billion). This would make Kazan the most expensive SSN/SSGN in the world together with USS Jimmy Carter but not as expensive as the $4.8 billion French SSBN Triomphant class. A single Yasen-class submarine allegedly costs as much as two Borei-class submarines.
In 2011, (then) Defense Minister Anatoliy Serdyukov criticized the ever increasing cost of the Borei- and Yasen-class submarines. The Minister described the massive increase in cost between the first and the second Yasen-class submarine as "incomprehensible". However, he insisted that the Ministry of Defence and Sevmash (builder) would resolve the issue. Officials from the United Shipbuilding Corporation replied that work done in Sevmash accounts to only 30% of the submarines completion cost, the remaining 70% being linked to suppliers/contractors.
Due to the high cost of each submarines some sources believe that a new generation of SSNs would be of smaller dimensions with a reduced armament/payload.



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