Borei-class SSBN (4K update) (Patreon)

The Borei-class SSBN (Russian designation: Project 955 Borei, NATO reporting name: Dolgorukiy-class) is a class of nuclear-powered ballistic missile submarines (SSBNs) operated by the Russian Navy. These submarines are a key component of Russia's nuclear deterrent, replacing aging Delta IV and Typhoon-class SSBNs. Here’s a detailed overview:

General Characteristics:

Role: Strategic nuclear deterrence (SSBN).

Builders: Sevmash Shipyard, Severodvinsk, Russia.

Entered Service: First unit commissioned in 2013.

Active Units (as of 2023): 6 Borei-class submarines, with additional under construction or planned.

Technical Specifications:

Displacement:

Surfaced: ~14,700 tons.

Submerged: ~24,000 tons.

Dimensions:

Length: ~170 meters.

Beam: ~13 meters.

Draft: ~10 meters.

Propulsion:

Single OK-650B pressurized water nuclear reactor.

Steam turbines driving a single shaft and pump-jet propulsor.

Speed: ~15 knots (surfaced), ~29 knots (submerged).

Unlimited range (nuclear-powered), with a service life of ~30 years.

Crew: ~107 (officers and enlisted personnel).

Armament:

Primary Weapon System:

16 Bulava (RSM-56) submarine-launched ballistic missiles (SLBMs):

MIRV-capable (Multiple Independently Targetable Reentry Vehicles).

Range: ~8,000-10,000 km.

Warheads: Up to 6-10 warheads per missile (yield ~150 kilotons each).

Secondary Weapons:

Torpedoes: 533 mm torpedo tubes.

Cruise missiles: Can carry Kalibr or P-800 Oniks missiles for conventional roles.

Countermeasures:

Decoys and advanced sonar evasion systems.

Modernized combat management and electronic warfare systems.

Design Features:

Stealth:

Advanced sound-isolation technologies.

Coated with anechoic tiles to reduce sonar signature.

Quiet pump-jet propulsion system.

Structure:

Double-hull design for increased survivability.

Divided into multiple watertight compartments.

Modern Sensors:

Advanced sonar, navigation, and fire control systems.

Automated systems reduce crew workload.

Notable Units:

K-535 Yuri Dolgorukiy (First of class, commissioned in 2013).

Other units include Alexander Nevsky, Vladimir Monomakh, and additional Borei-A variants (an improved version of the Borei design).

Strategic Role:

The Borei-class serves as a critical part of Russia's nuclear triad, ensuring second-strike capability. Its Bulava SLBM system provides a credible nuclear deterrent with the ability to penetrate modern missile defenses. The Borei-class is stationed with the Northern Fleet and Pacific Fleet, ensuring global coverage.