OVERVIEW: The PLA-971 Akula I Improved [Shchuka-B] is a nuclear-powered attack submarine (SSN) operated by the Russian Navy. Entering service in 2005, this vessel represents an evolution of the Project 971 *Shchuka-B* (NATO: Akula-class) design, incorporating enhancements in acoustic quieting and sensor technology.

DETAILS:
The Project 971 *Shchuka-B* design, developed in the late Soviet era, sought to provide a potent counter to advanced Western submarines, particularly the U.S. Navy's *Los Angeles*-class and *Seawolf*-class SSNs. The Improved Akula I variant incorporates significant noise reduction measures, including rafted machinery and anechoic coatings, to minimize its acoustic signature and improve its ability to operate undetected in contested environments. The design emphasizes hydrodynamic efficiency for high underwater speed and maneuverability. The hull is constructed from high-strength steel allowing for deep diving depths. Further enhancements are believed to include improved fire control systems and integration of advanced electronic warfare capabilities. The introduction of these improvements contributes to the submarine's overall survivability and lethality in modern naval warfare.

The PLA-971 Akula I Improved is primarily designed for anti-submarine warfare (ASW), anti-surface warfare (ASuW), and intelligence gathering roles. Its enhanced acoustic signature makes it a formidable hunter of enemy submarines, while its torpedo armament provides a significant threat to surface combatants. The SA-N-8 Gremlin mast-mounted launcher adds a limited self-defense anti-air warfare (AAW) capability against low-flying aircraft and helicopters. Furthermore, the submarine's sophisticated sensor suite allows it to conduct covert surveillance missions, monitoring enemy naval activity and gathering critical intelligence. Its operational deployments likely include patrols in the North Atlantic, Arctic, and Pacific Oceans.

The vessel's sensor suite is comprehensive, providing a multi-faceted approach to situational awareness. The Rim Hat [Kremlin-2] radar is used for surface search and navigation. The Shark Gill [MGK-540 Skat-3] and Shark Tail [MG-541 Skat-3] sonars provide long-range detection and tracking of underwater targets. The Mouse Roar [MG-519 Arfa-M] sonar is used for mine detection and avoidance. Generic Acoustic Intercept equipment allows the submarine to passively detect and analyze the acoustic signatures of other vessels. The Snoop Pair [MRKP-59] is likely an electronic support measures (ESM) system, used to detect and analyze enemy radar emissions. The inclusion of both Optical and Low Light Television (LLTV) periscopes enhances the submarine's ability to conduct visual surveillance, particularly in shallow water or during nighttime operations. The presence of a SOKS (Sistema Obnaruzheniya Katernykh Sledov) sensor suggests a capability to detect wake disturbances. The MG-114 Berilly torpedo fire control system improves targeting and fire control solutions for the submarine's torpedo armament.

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 || Signal Ejector