November-class submarine

November-class submarine. The Project 627 Kit (Whale) submarines, known in the West as the November class, were the first nuclear-powered submarines built for the Soviet Navy. Their development marked a pivotal moment in the Cold War naval arms race, directly responding to the launch of the USS *Nautilus* by the United States Navy. These vessels, while pioneering, were notoriously noisy and faced significant technical challenges throughout their service lives.

Design and development

The design and development of the November class was initiated by a special government decree, with the initial design work conducted by SKB-143 under chief designer Vladimir Peregudov. The program received high-level political backing from Nikita Khrushchev and was overseen by the influential head of the Soviet nuclear program, Igor Kurchatov. The revolutionary VM-A pressurized water reactor was developed by the team at OKB Gidropress and the Kurchatov Institute, providing the submarine with its nuclear propulsion. The hull design was a radical departure from contemporary German Type XXI-influenced Whiskey-class boats, featuring a distinctive tear-drop shape optimized for underwater speed, though it retained a double-hull construction typical of Soviet design philosophy. The class was armed with eight 533 mm torpedo tubes and could carry conventional or nuclear-tipped torpedoes, with no provision for cruise missiles.

Operational history

The lead boat, K-3 *Leninsky Komsomol*, was commissioned into the Northern Fleet in 1958, entering service two years after the American *Nautilus*. The November-class boats were primarily deployed for anti-shipping and anti-submarine warfare patrols in the Atlantic Ocean and Arctic Ocean, often shadowing NATO task forces. Their service was marred by multiple serious accidents, including the loss of K-8 in the Bay of Biscay in 1970 and a fatal reactor compartment fire on K-19 in 1961, an incident later dramatized in the film K-19: The Widowmaker. The inherent noisiness of their propulsion plants made them easy targets for Western SOSUS arrays and attack submarines, limiting their tactical effectiveness. All units were retired from the Soviet Navy by 1990.

Specifications

The November class had a surfaced displacement of approximately 3,065 tons and a submerged displacement of 4,750 tons. The hull was 109.7 meters long, with a beam of 9.1 meters and a draught of 7.3 meters. Propulsion was provided by two VM-A reactors driving two steam turbines, generating around 35,000 shaft horsepower and enabling a top submerged speed of 30 knots. The boats had an operational depth of 300 meters and could accommodate a crew of 104 officers and enlisted men. Sensor suites included the MG-200 *Arktika*-M sonar system and *Flag* radar. Armament consisted of eight bow-mounted 533 mm torpedo tubes, with a typical load of 20 SET-65 or 53-65 torpedoes.

Variants

The basic Project 627 design saw several notable variants. The single Project 645 boat, K-27, was a unique test platform fitted with two experimental liquid metal cooled reactors, though it suffered chronic reliability issues and was eventually scuttled in the Kara Sea. The Project 627A was the definitive and only series-produced model, encompassing thirteen units with minor improvements over the initial design. No dedicated cruise missile or ballistic missile variants were derived from the November class; those roles were fulfilled by the subsequent Echo and Hotel classes, which shared some design lineage but were fundamentally different projects.

See also

* Echo-class submarine * Victor-class submarine * Alfa-class submarine * History of the Soviet Navy * Nuclear marine propulsion * Soviet submarine K-19

Category:Soviet submarine classes Category:Nuclear-powered attack submarines