Borei-class submarine
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| Class overview | |
|---|---|
| Name: | Borey (Борей) |
| Builders: | Sevmash, designed by Rubin |
| Operators: |
 Russian Navy
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| Preceded by: | Delta IV-class, Typhoon-class |
| Building: | 5 |
| Planned: | 8 |
| Active: | 3 |
| General characteristics | |
| Type: | Ballistic missile submarine |
| Displacement: |
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| Length: | 170 m (557 ft 9 in) |
| Beam: | 13.5 m (44 ft 3 in) |
| Draught: | 10 m (32 ft 10 in) |
| Propulsion: |
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| Speed: | |
| Range: | Unlimited; (1yr+) endurance restricted by food stores |
| Test depth: | planned 450m (1,400+ft) |
| Complement: | 107 total crew |
| Armament: |
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The Borey class (Russian: Борей; transliterated as Borey, NATO Reporting Name: Dolgorukiy class, after the name of the lead vessel, Yury Dolgorukiy) is the new class of nuclear-powered ballistic missile submarine produced by Russia and operated by the Russian Navy, while the Severodvinsk-class submarine is the new Russian attack submarine. The class is intended to replace the Delta III, Delta IV and Typhoon classes now in Russian Navy service. The class is named after Boreas, the North wind.
Despite being a replacement for many types of submarines, the Borey-class submarines are much smaller than those of the Typhoon class in both volume and crew (107 people as opposed to 160 for the Typhoons). The goal of this downsizing is to reduce the cost to build and maintain the submarines.
The first design work started in the mid-1980s, and the construction of the first unit of the Borei class (officially designated "Project 955") started in 1996. (A short-lived, smaller parallel design appeared in the mid-1980s designated Project 935 Borei II) A new submarine-launched ballistic missile was developed in parallel, called the R-39UTTH "Bark". However, the work on this missile was abandoned, and a new missile called the Bulava was designed. The submarine needed to be redesigned to accommodate the new missile, and the design name was changed to Project 955. The vessels are being built at the Northern Machinebuilding Enterprise (Sevmash) in Severodvinsk, and were designed by the Rubin Marine Equipment Design Bureau (Rubin). Because of the repeated failures during Bulava test launches, some experts suggested that the Borei submarine could instead be armed with R-29RMU Sineva missiles. The Sineva is already in active duty on the Delta IV-class submarine.
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