OVERVIEW: The PLARB-667BDRM Delta IV [Delfin] is a nuclear-powered ballistic missile submarine (SSBN) of the Delta IV class, commissioned by the Soviet Navy in 1980. These submarines represent a significant evolution in Soviet strategic deterrent capabilities, succeeding the earlier Delta I, II, and III classes.

DETAILS:
The Delta IV class emerged from the need for a quieter and more capable SSBN platform to ensure survivability against increasingly sophisticated Western anti-submarine warfare (ASW) capabilities. The design incorporated significant noise reduction measures, including improved hull construction, vibration dampening techniques, and more efficient machinery. This was a crucial development, as the Soviets recognized the vulnerability of earlier SSBNs operating in relatively shallow waters close to their shores. The Delta IV retained the characteristic long missile compartment of its predecessors but with significant internal modifications to accommodate the newer, more capable SS-N-23 Skif (Stingray) SLBM system. The class benefited from lessons learned from the earlier Delta designs, incorporating enhanced safety features and improved crew comfort. The design philosophy prioritized stealth, reliability, and the ability to launch a devastating retaliatory strike from within heavily defended bastions in the Arctic.

The primary role of the Delta IV class is to serve as a key component of the Russian (formerly Soviet) strategic nuclear deterrent. Operating primarily in the Arctic Ocean, these submarines are tasked with maintaining a credible second-strike capability. While not explicitly designed for anti-submarine warfare (ASW), the vessel does possess torpedoes for self-defense. The vessel can also be used for intelligence gathering, using its array of sensors to monitor enemy naval activity. Its ability to loiter undetected in the Arctic ice pack provided the Soviet Navy with a secure launch platform, immune to many traditional ASW methods.

The PLARB-667BDRM is equipped with a comprehensive suite of sensors and armament to fulfill its strategic role. The Shark Gill [MGK-520 Skat-BDRM] sonar provides a long-range passive and active detection capability for identifying and tracking enemy submarines and surface vessels. The Shark Tail [Pelmida] towed array sonar further enhances the vessel's passive detection range, while the Mouse Roar [MG-519 Arfa-M] sonar is likely used for mine detection and obstacle avoidance in shallow waters. The Brick Pulp [MRP-21 Zaliv-P] and Snoop Tray 2 [MRK-50 Kaskad] are likely electronic warfare and communications intercept systems, allowing the submarine to monitor enemy communications and gather intelligence. The installation of two periscopes, one optical and one with LLTV, provides options for visual observation, especially important in navigating ice floes and conducting covert operations. The primary armament is the SS-N-18 Stingray Mod 1 SLBM, enabling the submarine to strike targets at intercontinental ranges. Self-defense is provided by standard 533mm torpedo tubes and signal ejectors.

SPECIFICATION: Length: 166.0 m || Beam: 12.3 m || Draft: 8.8 m || Disp: 13500 t

SENSORS: Shark Gill [MGK-520 Skat-BDRM] || Shark Tail [Pelmida] || Park Lamp || Brick Pulp [MRP-21 Zaliv-P] || Snoop Tray 2 [MRK-50 Kaskad] || Generic Acoustic Intercept || Mouse Roar [MG-519 Arfa-M] || Generic Submarine Periscope, Optical || Generic Submarine Periscope, LLTV

ARMAMENT: SS-N-18 Stingray Mod 1 SLBM || Signal Ejector || 533mm TT