Russian Navy launches Aleksei Shein replenishment tanker to support Baltic Fleet operations.

Nevsky Shipyard launched the fourth Project 23130 replenishment oiler, the Aleksei Shein (904), in Shlisselburg on July 14, 2026, marking the third serial vessel produced under a December 17, 2020 contract for the Russian Navy. The medium sea tanker is structurally designated for the Baltic Fleet to support surface ships and submarines operating out of Baltiysk and Kronstadt into the North Atlantic and Arctic corridors. This program is intentionally engineered to reduce Russian naval reliance on aging Soviet-era logistics vessels and foreign port access by enabling prolonged underway replenishment of liquid and dry stores.

The Aleksei Shein features a full-load displacement of 14,000 tons, an Arc4 ice-class double hull capable of navigating 0.8-meter thick ice, and a cargo configuration designed to transport 7,150 tons of combined liquid fuels alongside 100 tons of dry provisions. Operating with a core crew of 24, the vessel possesses a maximum cruising speed of 16 knots and an 8,000-nautical-mile range, permitting simultaneous replenishment of up to three warships at sea during a single 60-day endurance cycle.

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A Project 23130 tanker can remain at sea for 60 days and sail 8,000 nautical miles, enough to support deployments from northern Russia to the Mediterranean, the Caribbean or parts of the Indian Ocean when combined with port access or additional refueling. (Picture source: OCK)

On July 14, 2026, Nevsky Shipyard launched the fourth Project 23130 replenishment oiler, the Aleksei Shein (904), in Shlisselburg, as the third serial vessel ordered by the Russian Navy under the December 17, 2020 contract. The medium sea tanker was laid down on March 16, 2023, and is intended for the Baltic Fleet, giving it a projected role in supporting Russian surface ships and submarines operating from Baltiysk and Kronstadt into the Baltic Sea, North Sea, and North Atlantic. The same contract also covers Vasiliy Nikitin (902), intended for the Black Sea Fleet, and Engineer-Admiral Kotov (903), intended for the Pacific Fleet. These ships also represent the largest vessels ever launched in the entire history of the USC Nevsky Shipyard, surpassing in size the Project RSD49 river-sea dry cargo ships.

Deliveries of the three ships had originally been scheduled between 2023 and 2025, yet none had completed the full sequence of outfitting, sea trials, state acceptance, and transfer to the fleet by July 2026. The Aleksei Shein therefore increases the number of Project 23130 hulls afloat but does not immediately change the number of operational replenishment tankers available to Russian naval commanders. The distinction is important, as this program is intended to reduce Russian dependence on Soviet-built tankers and foreign port access by enabling warships and submarines to receive fuel, water, food, lubricants and spare parts while remaining at sea. 

The Aleksei Shein measures 130 meters in length, 21.5 meters in beam and 7 meters in maximum draft, with a depth of 10 meters to the upper deck. Full-load displacement reaches 14,000 tons, while deadweight at maximum draft is 9,000 tons, meaning cargo, fuel, water, stores, crew and consumables account for a substantial share of the ship's loaded mass. The vessel uses a single-shaft diesel propulsion arrangement with a total continuous engine power of at least 4,640 kW and a bow thruster for low-speed maneuvering in confined waters. Maximum speed is 16 knots, equal to 29.6 km/h, while maximum sailing range is 8,000 nautical miles, or 14,816 kilometers. Endurance is 60 days based on water and provisions, allowing a deployment cycle of two months without replenishing the tanker itself under normal consumption conditions.

The ship has a permanent crew of 24 and accommodation for 12 additional personnel, producing a total berthing capacity of 36. These figures may indicate a highly automated auxiliary vessel with a small crew relative to its displacement, but also place limits on the number of technicians, medical personnel, or embarked logistics specialists available during prolonged operations. The 16-knot speed is adequate for escorting frigates and auxiliary groups at economical cruising speeds, but it is below the 20-knot speed of the U.S. John Lewis-class and would constrain a formation required to sustain prolonged high-speed movement. The Project 23130 class now includes four named ships at different stages of service or construction.

The Akademik Pashin, hull number 901, was ordered under a November 1, 2013 contract valued at 2.978 billion rubles, laid down on April 26, 2014, and launched on May 26, 2016. Factory sea trials began on Lake Ladoga on May 17, 2018; the tanker reached Murmansk for the final phase of state trials on July 22, 2019, and entered Northern Fleet service on January 21, 2020. The interval from keel laying to commissioning was five years and nine months, while the period between launch and commissioning lasted three years and eight months. The Vasiliy Nikitin was laid down on March 26, 2021, and launched on October 5, 2023, after two years and six months of hull construction. The Engineer-Admiral Kotov was laid down during 2022 and launched on December 5, 2024, while the Aleksei Shein spent three years and four months between keel laying and launch.

Russia plans six Project 23130 tankers, leaving two further vessels to be named and constructed. If all six are completed, the class could provide at least one modern medium tanker to each major fleet, with remaining hulls assigned according to deployment tempo or concentrated in the Northern Fleet, which supports the largest share of Russia's distant-water and Arctic naval activity. The ship's cargo arrangement is centered on liquid replenishment rather than general stores transport. The Project 23130 can carry 3,000 tons of heavy fuel oil, 2,500 tons of diesel fuel, 500 tons of aviation kerosene, 150 tons of lubricating oil and 1,000 tons of fresh water. These figures produce a combined liquid load of 7,150 tons, equivalent to 79.4 percent of the ship's 9,000-ton deadweight. Dry cargo capacity is 100 tons, including provisions, replacement components, technical stores and shipboard consumables.

The cargo system can keep as many as eight types of cargo separated through dedicated tanks, pipelines, pumps and transfer controls, reducing contamination risk and allowing the tanker to support ships using different fuels or lubricants during one deployment. The 2,500-ton diesel allocation is relevant for modern Russian frigates, corvettes and conventional auxiliaries, while the 500-ton aviation kerosene capacity can support embarked helicopters and limited shore-based aviation requirements. The 1,000 tons of fresh water can also reduce demand on shipboard desalination plants or support vessels operating with degraded freshwater production. The comparatively small 100-ton dry cargo allowance confirms that the Project 23130 is not a full-spectrum stores ship and cannot replace dedicated ammunition, repair or dry cargo vessels during large-scale operations. 

The Project 23130 can supply fuel to three ships at the same time while the tanker and receiving vessels remain underway at separation distances of 50 to 100 meters. The ship can conduct abeam replenishment through hoses and transfer rigs or supply a vessel astern through a trailing arrangement when formation geometry or sea conditions make alongside transfer less suitable. A transverse transfer system can move food, spares, and technical stores without bringing the ships into port or requiring them to moor together. During trials, the Akademik Pashin refueled three combat ships simultaneously, with the Northern Fleet's nuclear-powered missile cruiser Pyotr Veliki and Project 22350 frigate Admiral Gorshkov participating during the test program.

Simultaneous replenishment can shorten the period during which several combatants must maintain fixed courses, reduced maneuvering freedom, and close spacing. It also allows a task group to restore fuel levels across multiple ships during a single logistics cycle rather than servicing each vessel separately. At 16 knots, however, the tanker cannot match the sustained speed of nuclear submarines, destroyers or large surface combatants during rapid transit. The practical employment pattern is therefore likely to involve rendezvous at a designated position, replenishment at moderate speed and subsequent dispersal, rather than continuous integration with a fast maneuvering formation. The class was designed for a wider climatic and geographic envelope than a commercial tanker of comparable size.

The Project 23130 has a strengthened steel double hull around the cargo-tank area and complies with the Arc4 ice category of the Russian Maritime Register of Shipping. It can navigate independently through sparse first-year Arctic ice up to 0.8 meters thick during summer and autumn and through ice up to 0.6 meters thick during winter and spring. Icebreaker assistance is therefore required when ice concentration, pressure, or thickness exceeds those limits, particularly during winter operations in the Barents Sea. The approved air temperature range extends from +45°C at 60 to 85 percent humidity to -30°C at 65 to 85 percent humidity. Permitted seawater temperatures extend from +34°C to -3°C, covering operations from warm-water deployments in the Mediterranean or Indian Ocean to sub-zero northern conditions.

Navigation is unrestricted in non-Arctic seas, while the ship can operate independently in the Barents Sea during summer and autumn and with icebreaker support during winter and spring. This permits the same tanker to support Atlantic deployments, deliver fuel to Arctic bases and accompany warships operating along the Northern Sea Route, although Arc4 does not make the tanker an icebreaker or permit unrestricted independent movement through heavy multi-year ice. The program's delays are linked less to launching hulls than to completing machinery, cargo handling and control system integration. The Akademik Pashin entered service more than three years after its initial contractual deadline, partly because the lead ship incorporated Wärtsilä diesel engines and a substantial quantity of imported auxiliary equipment.

Sanctions forced serial vessels to replace foreign machinery with Russian substitutes, requiring changes to foundations, piping, cooling, electrical distribution, control software and maintenance arrangements. A replacement engine or pump cannot be installed solely based on similar power or capacity because dimensions, vibration, heat output, electrical demand and interface protocols affect multiple ship systems. Cargo transfer equipment also became a source of delay, including components connected with the Troitsky Crane Plant. Nevsky Shipyard sought more than 441 million rubles in compensation for delayed equipment deliveries, a figure that illustrates the financial effect of supplier failures on a contract originally intended to deliver three tankers by 2025.

Post-launch work remains extensive because the shipyard must complete propulsion alignment, electrical cabling, pipe testing, cargo pump certification, automation integration, damage control checks and harbor acceptance before sea trials can begin. The Aleksei Shein's launch is therefore only one point in the production cycle, and the interval between launch and commissioning may be measured in years if the serial ships follow the pattern established by the Akademik Pashin. The operational case for Project 23130 rests on the age of Russia's replenishment fleet and the geographic separation of its naval forces.

The Russian Navy continues to rely on Soviet-era Boris Chilikin, Altay, Dubna and Kaliningradneft-class tankers, many of which have been in service for several decades and require increasingly intensive maintenance. The Akademik Pashin demonstrated the class's distant-support role in June 2024 when it crossed the Atlantic with the Project 22350 frigate Admiral Gorshkov, the Yasen-M-class nuclear-powered submarine Kazan and the ocean-going tug Nikolai Chiker during a deployment to Cuba. An 8,000-nautical-mile range permits a voyage from the Russian north to the Caribbean only when combined with careful fuel management, replenishment opportunities or port access, but it is sufficient for Mediterranean, North Atlantic and Arctic missions.

Still, the Project 23130 remains substantially smaller than the U.S. John Lewis-class, which is 227.4 meters long, displaces 49,850 tons at full load, reaches 20 knots and carries 156,000 barrels of petroleum products. The Russian ship's 7,150-ton liquid load, 100-ton dry cargo capacity and 16-knot speed indicate a role supporting individual warships, submarines and small surface groups rather than sustaining a carrier strike group during continuous high-tempo operations. Distribution among the Northern, Black Sea, Pacific and Baltic Fleets will improve geographic coverage if all ships enter service, but it will also leave each fleet with only limited redundancy. Until the Vasiliy Nikitin, Engineer-Admiral Kotov, and Aleksei Shein complete acceptance, Russia's additional replenishment capacity exists as launched hulls under construction rather than as ships available for operational tasking.

Written by Jérôme Brahy

Jérôme Brahy is a defense analyst and documentalist at Army Recognition. He specializes in naval modernization, aviation, drones, armored vehicles, and artillery, with a focus on strategic developments in the United States, China, Ukraine, Russia, Türkiye, and Belgium. His analyses go beyond the facts, providing context, identifying key actors, and explaining why defense news matters on a global scale.

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