Project 651, known in the West by its NATO reporting name Juliett class, was a class of Soviet diesel-electric cruise-missile submarines. They were designed in the late 1950s to provide the Soviet Navy with a nuclear strike capability against targets along the east coast of the United States and enemy combatants. The head of the design team was Abram Samuilovich Kassatsier. They carried four nuclear-capable cruise missiles with a range of approximately 300 nautical miles (560 km), which could be launched while the submarine was surfaced and moving less than four knots (7.4 km/h). Once surfaced, the first missile could be launched in about five minutes; subsequent missiles would follow within about ten seconds each. Initially, the missiles were the inertially-guided P-5. When submarine-launched ballistic missiles rendered the P-5s obsolescent, they were replaced with the P-6 designed to attack aircraft carriers. A special 10 m2 target guidance radar was built into the forward edge of the sail structure, which opened by rotating. One boat was eventually fitted with the Kasatka satellite downlink for targeting information to support P-500 4K-80 "Bazalt" anti-ship cruise missiles. The Juliett class had a low magnetic signature austenitic steel double hull, covered by two inches (51 mm) thick black tiles made of sound-absorbing hard rubber.
K-222 was the sole Project 661 "Anchar" nuclear-powered cruise-missile submarine of the Soviet Navy during the Cold War. Although the Soviets saw K-222 as an unsuccessful design, upon completion it was the world's fastest submarine and the first to be built with a titanium hull.
K-77 was a "Project 651" diesel–electric submarine built for the Soviet Navy during the 1960s. Commissioned in 1965, the boat was armed with long-range cruise missiles to carry out its mission of destroying American aircraft carriers and bases. The missiles could be fitted with either conventional or nuclear warheads.
The Alfa class, Soviet designation Project 705 Lira, was a class of nuclear-powered attack submarines in service with the Soviet Navy from 1971 into the early 1990s, with one serving in the Russian Navy until 1996. They were among the fastest military submarines ever built, with only the prototype submarine K-222 exceeding them in submerged speed.
A nuclear submarine is a submarine powered by a nuclear reactor, but not necessarily nuclear-armed. In the US classification, nuclear-powered submarines are designated as SSxN, where the SS denotes submarine, x=G means that the submarine is equipped with guided missiles, x=B means that the submarine is equipped with ballistic missiles and the N means that the submarine is nuclear-powered. SSN refers to nuclear-powered attack submarines, which do not carry missiles.
The Kilo-class submarines are a group of diesel-electric attack submarines designed by the Rubin Design Bureau in the Soviet Union in the 1970s and built originally for the Soviet Navy.
The Poseidon, previously known by Russian codename Status-6, is an autonomous, nuclear-powered unmanned underwater vehicle reportedly in production by Rubin Design Bureau, capable of delivering both conventional and nuclear warheads.
Sindhughosh-class submarines are Kilo-class diesel-electric submarines in active service with the Indian Navy. Their names are in Sanskrit, but in their Roman-alphabet forms sometimes a final short -a is dropped.
Lada class, Russian designation Project 677 Lada is the new advanced class of diesel-electric attack submarine designed by the Russian Rubin Design Bureau. A program to develop a "fourth generation" diesel-electric submarine, it aimed to produce a highly improved version of the Project 636 with better acoustic signature, new combat systems and possibly air-independent propulsion. However, in 2019, Alexander Buzakov, the head of the Admiralty Shipyard, indicated that there were no plans to equip the Lada class with an air-independent propulsion system. In July 2022 it was reported that work on an electrochemical generator to produce hydrogen from diesel fuel and oxygen was continuing and that the Rubin Central Design Bureau signed a new contract in 2019 to continue work. This was scheduled to be completed by the mid-2020s. In 2023, the decision was taken to decommission and scrap the lead ship of the class, the Sankt Peterburg due to the very high costs of modernising the submarine.
Russian submarine K-336 Pskov Russian: Псков) is a Sierra-class Attack submarine of the Russian Navy. She is named after the Russian city Pskov.
Krasnoye Sormovo Shipyard No. 112 named after Andrei Zhdanov is one of the oldest shipbuilding factories in Russia, located in the Sormovsky City District of Nizhny Novgorod.
The Yasen class, Russian designations Project 885 Yasen and Project 885M Yasen-M, also referred to as the Graney class, are a series of nuclear-powered cruise missile submarines designed by the Malakhit Marine Engineering Bureau and built by Sevmash for the Russian Navy. Design work commenced in earnest in the 1980s with the first submarine built in the 1990s–early 2010s with commissioning in 2013. Two additional boats to an upgraded Yasen-M design were commissioned in 2021 and six more are under construction. Based on the Akula class and Alfa class designs, the Yasen class is projected to replace the Russian Navy's current Soviet-era nuclear attack submarines. The Akula class is optimised for a hunter-killer role, whereas the Yasen class concept uses the platform as a nuclear guided missile submarine (SSGN).
JSC PO Sevmash is a Russian joint-stock company (JSC) under the vertically-integrated United Shipbuilding Corporation. The shipbuilding operations of Sevmash is in the port city of Severodvinsk on the White Sea in the Russian Federation.
K-211 Petropavlovsk-Kamchatskiy is a Project 667BDR Kalmar class Russian nuclear ballistic missile submarine. The submarine was built by Sevmash, Severodvinsk in the late 1970s and joined the Soviet fleet in 1980. The submarine continued to serve in the Russian Navy as part of the Pacific Fleet after the collapse of the Soviet Union. She was decommissioned in 2010 and is currently laid up, awaiting disposal. Her role and those of the other boats of her class is being taken by the new Borei-class submarines.
K-18 Karelia is a Project 667BDRM Delfin-class nuclear-powered ballistic missile submarine currently in service with the Russian Navy. It was built in Severodvinsk by Sevmash shipbuilding company and was commissioned in 1989. It was refitted from 2004 to 2009, after which it returned to the navy.
Knyaz Oleg is a Borei-class nuclear-powered ballistic missile submarine developed by the Rubin Design Bureau and constructed by the Sevmash for the Russian Navy. The submarine is named after Oleg of Novgorod.
K-329 Belgorod is a modified design of the Oscar II class Russian nuclear submarine. It was laid down in July 1992 as a Project 949A cruise missile submarine, NATO designation Oscar II class. It was redesigned and the partly built hull was reconfigured as a special operations vessel, able to operate unmanned underwater vehicles. The vessel was relaid in December 2012. Due to chronic underfunding, its construction was suspended, then resumed at a low rate of progress before the ship was redesigned to become a unique vessel — the first Russian fifth-generation submarine, according to the Ministry of Defence.
K-70 was a "Project 651" diesel–electric submarine built for the Soviet Navy during the 1960s. Commissioned in 1965, the boat was armed with long-range cruise missiles to carry out its mission of destroying American aircraft carriers and bases. The missiles could be fitted with either conventional or nuclear warheads. K-70 was initially assigned to the Northern Fleet, but was transferred to the Pacific Fleet a few months later. The submarine was decommissioned in 1989 and subsequently scrapped.
K-68 was a "Project 651" diesel–electric submarine built for the Soviet Navy during the 1960s. Commissioned in 1965, the boat was armed with long-range cruise missiles to carry out its mission of destroying American aircraft carriers and bases. The missiles could be fitted with either conventional or nuclear warheads. While much of the submarine's activities during the Cold War are unknown, she did make at least one patrol in the Mediterranean Sea before serving as the test bed for an auxiliary nuclear reactor from 1976 to 1991. K-68 was decommissioned in 1992 and subsequently scrapped.
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