OVERVIEW: The PLASN-667BDRM Delta IV Stretch is a nuclear-powered ballistic missile submarine (SSBN) operated by the Russian Navy. Commissioned in 2020, it represents a significant modification and extension of the earlier Project 667BDRM (Delta IV) design. It is likely that the "Stretch" designation implies a hull extension to accommodate new or enhanced systems, or to improve hydrodynamic performance.

DETAILS:
The Project 667BDRM Delta IV class, from which this submarine is derived, emerged from the Soviet Union's continuous effort to maintain a credible sea-based nuclear deterrent. The original Delta IV design emphasized reduced acoustic signature and improved missile launch reliability compared to its predecessors. The 'Stretch' variant likely incorporates further advancements in these areas, potentially including improved pumpjet propulsion or enhanced hull coatings for noise reduction. Considering the late commissioning date, it is probable that the PLASN-667BDRM Delta IV Stretch also features improved command and control systems, potentially linking it to a more robust and secure communication network. This would allow for greater operational flexibility and survivability in a contested environment. The design philosophy behind this submarine remains focused on survivability and the ability to launch ballistic missiles from a submerged and concealed position, ensuring the continued viability of Russia’s strategic deterrent.

The primary role of the PLASN-667BDRM Delta IV Stretch remains strategic nuclear deterrence. It is not designed for anti-submarine warfare (ASW) or anti-surface warfare (ASuW) roles beyond self-defense, though its sensors could provide limited situational awareness in these areas. The submarine's sensors are tailored towards navigation, target detection for missile launch, and threat avoidance. Given the advanced sensor suite, the platform can also be used for covert intelligence gathering operations, including monitoring of opposing naval forces and underwater infrastructure. The inclusion of both optical and LLTV periscopes allows for visual confirmation of targets or environmental conditions in varying light levels.

The integration of the Shark Gill (MGK-520 Skat-BDRM) sonar suite provides comprehensive acoustic situational awareness, including passive and active detection capabilities for both submarines and surface vessels. The Shark Tail (Pelmida) towed array sonar likely enhances long-range detection capabilities, particularly in noisy environments. The Brick Pulp (MRP-21 Zaliv-P) electronic warfare support measures (ESM) system allows for the detection and identification of radar emissions from enemy vessels and aircraft. The Snoop Tray 2 (MRK-50 Kaskad) is a space-based targeting and navigation system. Mouse Roar (MG-519 Arfa-M) likely provides mine detection and avoidance capabilities. The 533mm torpedo tubes can be used for self-defense against submarines or surface ships, or for deploying countermeasures. The inclusion of a Signal Ejector suggests the ability to deploy decoys or communication buoys.

SPECIFICATION: Length: 174.0 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: 533mm TT || 533mm TT || Signal Ejector