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Typhoon Class (Russian)
from Wikipedia
Typhoon-class submarines feature multiple pressure hulls that simplify internal design while making the vessel much wider than a normal submarine. In the main body of the sub, two Delta class pressure hulls lie parallel with a third, smaller pressure hull above them (which protrudes just below the sail), and two other pressure hulls for torpedoes and steering gear. This also greatly increases their survivability - even if one pressure hull is breached, the crew members in the other are safe and there is less potential for flooding. A Typhoon class submarine on the surface in 1985. The Typhoon class was developed under Project 941 as the Russian Akula class, meaning shark. It is sometimes confused with other submarines, as Akula is the name NATO uses to designate the Russian Project 971 Shchuka-B class attack submarines. The project was developed with the objective to match the SLBM armament of Ohio-class submarines, capable of carrying 192 nuclear warheads, 100 kt each. However, at the time, state-of-the-art Soviet SLBMs were substantially larger and heavier than their American counterparts (the R-39 is more than two times heavier than the Trident I; it remains the heaviest SLBM in service worldwide). The submarine had to be scaled accordingly. Six Typhoon-class submarines were built. Originally, the submarines were designated by hull numbers only. Names were later assigned to the four vessels retained by the Russian Navy, which were sponsored by either a city or company. The construction order for an additional vessel (hull number TK-210) was canceled and never completed. Only the first of these submarines to be constructed, the Dmitriy Donskoy, is still in active service with the Russian Navy, serving as a test platform for the Bulava (SS-NX-32) missile which is currently under development. The Arkhangelsk (TK-17) and Severstal (TK-20) remain commissioned, though not currently active with the Russian fleet. All the R-39 missiles have been retired. The Typhoons are slated to be replaced by the Borei class starting in 2010-11. In late December 2008, a senior Navy official announced that the two Typhoon-class submarines, the TK-17 and TK-20, that are in reserve would not be rearmed with the new Bulava SLBM missile system. They could however be modified to carry cruise missiles or to lay mines, or could be used in special operations. In late June 2009, the Navy Commander-in-Chief, Admiral Vladimir Vysotsky told reporters that the two submarines would be reserved for possible future repairs and modernization. In May 2010, the Navy Commander-in-Chief reported that Russia's Typhoon-class submarines would remain in service with the Navy until 2019. In September 2011, the Russian defense ministry decided to write off all Project 941 Akula nuclear-powered ballistic missile submarines until 2014. The reason for decommission of the world's largest submarines are restrictions imposed on Russia by the Strategic Arms Reduction Treaty and successful trials of new Borei-class submarine. However, according to other sources at the Russian defence ministry, no such decision has been made; in that case, the submarines would remain with the Russian Navy., Submarines TK-17 Arhangelsk and TK-20 Severstal will not be modernized as platforms for cruise missiles, but they will be kept in service with their previous armament, R-39 missiles. In 2013, the State-Run RIA Novosti news has announced that the Navy will scrap two Typhoons beginning 2018. They will be the TK-17 and TK-20. Variants
The Submarine Cargo Vessel is a proposed idea
by the Rubin Design Bureau where a Typhoon has its missile launchers removed
and replaced with cargo holds. The projected cargo capacity of this configuration
is 15,000 tonnes (15,000 long tons).
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