OVERVIEW: The PLA-971 Akula I Improved [Shchuka-B] is a nuclear-powered attack submarine (SSN) operated by the Russian Navy. Entering service in 1992, it represents a significant upgrade to the original Project 971 Akula design.

DETAILS: The Akula I Improved, or Shchuka-B, submarines were the result of lessons learned from earlier Soviet submarine designs and a desire to create a quieter and more capable platform. The initial Akula design represented a major leap forward in Soviet submarine technology, addressing the noise concerns that plagued previous generations. The Improved variant incorporated further refinements to noise reduction techniques, including improved anechoic coatings and internal machinery isolation, making it significantly harder to detect than its predecessors. This drive for stealth directly influenced the submarine's design, from its hull shape to the materials used in its construction. The programme suffered from delays due to the collapse of the Soviet Union.

The Akula I Improved is primarily an attack submarine, designed for anti-submarine warfare (ASW) and anti-surface warfare (ASuW) roles. Its advanced sensor suite allows it to detect and track enemy submarines and surface ships at considerable distances. The submarine can conduct independent patrols, provide escort for ballistic missile submarines, or participate in coordinated fleet operations. While not its primary role, the SA-N-8 Gremlin mast launcher provides a limited self-defense capability against aerial threats. The vessel can also be used for intelligence gathering and special operations missions.

The PLA-971 Akula I Improved boasts a comprehensive sensor suite. The Rim Hat [Kremlin-2] fire control radar provides targeting data for anti-ship missiles. The Shark Tail [MG-541 Skat-3] and Shark Gill [MGK-540 Skat-3] sonar suites are used for active and passive detection of underwater contacts. The Snoop Pair [MRKP-59] radar provides surface search capabilities. The Generic Acoustic Intercept system analyzes enemy sonar emissions to identify and locate potential threats. The Mouse Roar [MG-519 Arfa-M] sonar is designed for mine detection and avoidance. The presence of both optical and LLTV periscopes enables visual observation in varying light conditions. The SOKS (System of Observation of the Kavitating Stream) is used to detect the wake of other vessels. The multiple torpedo tubes give the submarine considerable offensive capability.

SPECIFICATION: Length: 110.3 m || Beam: 13.6 m || Draft: 9.7 m || Disp: 8140 t

SENSORS: Rim Hat [Kremlin-2] || Shark Tail [MG-541 Skat-3] || Shark Gill [MGK-540 Skat-3] || Snoop Pair [MRKP-59] || Generic Acoustic Intercept || Mouse Roar [MG-519 Arfa-M] || Generic Submarine Periscope, Optical || Generic Submarine Periscope, LLTV || SOKS

ARMAMENT: MG-114 Berilly [6x TT] || SA-N-8 Gremlin [9K34 Strela-3] Mast Launcher || 533mm TT || 650mm TT || 650mm TT || Signal Ejector