Bellona Report nr. 2:96. Written by: Thomas Nilsen, Igor Kudrik and Alexandr Nikitin.
Project 627, 627 A (Kit) - November Class
Technical Data 
|| 107.4 m
|| 3 065/4.750 tons|
|| 7,9 m
|| Low magnetic steel.|
|| 5.65 m
|| 104 (30 officers)|
|| 28-30 knots
|| 300 m.|
- Torpedo room and accommodations
- Accumulator, accommodations and mess;
- Control room;
- Auxiliary machinery and diesel generator;
- Reactor compartment;
- Turbine compartment;
- Electro-technical and control centre for reactor;
- Auxiliary equipment;
- Steering system, accommodations.
Two pressurised water reactors, model VM-A, 2 x 70 MWt (2 x 17.500 hp). The
reactors were running at 80% of their available power.
Shipyard 402, Sever Machine Building Factory at Molotovsk (now known as
Severodvinsk). The submarines were built in the period from September 1955 to
Naval Architects 
- Principal builder: Building and Construction Company SKB-143, V.N.
- Scientific Director: A.P. Aleksandrov.
- Principal builder of nuclear reactors: Khimmash Scientific
Research, N.A. Dollezhyal.
- Electrical equipment: Elektrosila Institute, A.V. Mozalevskiy.
- Radio electronics: NSh-49, N.A. Tsharin. Navigation equipment: MNII-1
Scientific Research Institute, E.I. Eller.
- Hydroacoustics: Scientific Research Institute No. 3, E.I. Aldyshkin.
- Air regeneration system: GIPKh Company, V.S. Shpak.
- Steel: Institute of Metallurgy and Welding, G.I. Kopyrin and V.A. Gorynin.
- Naval Architects: UAGI Company, K.K. Fedayevsky and UNII Scientific
Research Institute, V.I. Pershin.
- Nuclear Weapons: Scientific Research Institute-400, Mayak, A.M. Borushko.
- Leninskiy Komsomol, factory no. 254, first nuclear powered
submarine of the Soviet Union. Laid down on September 24, 1955, launched August
9, 1957, commissioned on July 1, 1958, sailed out to the White Sea on July 3.
Ship's nuclear reactors started for the first time on July 4, 1958. K-3 was
stationed at Zapadnaya Litsa. The submarine's first commander was L.G.
Osipenko. On July 17, 1962, K-3 was the
first Soviet submarine to reach the North Pole. The
reactors were seriously damaged in June 1962 as a result of a fire and
subsequent problems in the cooling system.
The submarine was towed to Severodvinsk where the decision was made not to
deactivate the reactor. The reactor compartment of the ship (No. 258) was
therefore cut out and transported away to be dumped in Abrosimova Bay in the
Kara Sea. One of the reactors was dumped
with its fuel. A new section with two reactors was then installed, but in 1967
another accident occurred affecting this section.
Today there are plans for the construction company Malakhit to turn K-3 into a
- factory no. 260. Commissioned on August 17, 1960. The Reactor compartment
was cut out and replaced with two new reactors.
- factory no. 261. Commissioned on August 31, 1960. Two months later on
October 13, 1960, there was an accident involving the
power generator with a leak of radioactivity outside Great Britain. The submarine sank in
the Bay of Biscay outside Spain on April 12, 1970 following a fire.
- factory no. 285. Commissioned on December 23, 1961. During refuelling
operations in Severodvinsk, an uncontrolled chain
reaction occurred resulting in a fire on February 12, 1965. The reactor compartment (either no. 254 or
no. 260 was considerably damaged and had to be cut out of the submarine. Later
that same year or in 1966, both reactors were dumped into Abrosimova Bay in the
Kara Sea while still containing their fuel,
and a new reactor compartment was installed.
- factory no. 284. Commissioned on December 23, 1961.
- factory no. 287. Commissioned on October 16, 1962.
- Commissioned on November 4, 1963.
- factory no. 290. Commissioned on December 20, 1963.
- factory no. 283. Commissioned on December 23, 1963.
- factory no. 262. Commissioned on December 31, 1959. The submarine belonged
to the Northern Fleet until 1965 when it was transferred to the Pacific Fleet.
- Rostovsky Komsomolets. Commissioned on November 4, 1963. Laid
up in 1990.
- factory no. 265. Commissioned on December 30, 1960. Originally assigned to
the Northern Fleet; transferred to the Pacific Fleet in 1963.
- Commissioned on October 16, 1962.
Foto, 56 kb.
[Back to classification]
 Morskoy sbornik,
no. 1 - 1995. Return
Mormul, N., Note, 1995. Return
 Pavlov, A.S., Military Vessels in the
Soviet Union and Russia 1945-1995, 1994. Return
 Krasnaya Zvezda,
January 28, 1995, with reference to the magazine Russkoe Orushiye
(Russian Weapons) which in turn refers to the book Post-war History of
the Soviet Navy (1945-1991) by Rear Admiral Georgyj Kostev.
Komsomolskaya Pravda, June 30, 1989. Return
 Yablokov, A. V., Facts and
problems related to radioactive waste disposals in seas adjacent to the
territory of the Russian Federation, Moscow 1993. Return
 Osipenko, L., Zhiltsov, L., and
Mormul, N., Atomnaya Podvodnaya Epopeya, 1994. Return
 Mormul, N., Note, 1995.
P.L., Nuclear ship accidents: description and analysis. 2nd Rev.,
Page 4. Department of Electrophysics, Technical University of Denmark, 1994.
Yablokov, A. V., Facts and problems related to radioactive waste
disposals in seas adjacent to the territory of the Russian Federation,
Moscow 1993. Return
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