Cookie Consent by Privacy Policies Generator

Project 636 Varshavyanka class


NATO: Improved Kilo class


Overview


Project 636.3 class

Russian navy Project 636 Varshavyanka (NATO: Improved Kilo) class crossing the English channel.
Source: UK MOD - © Open Government License

Origin
Russia
Type
Diesel-electric attack submarine
Entered service
1997
Status
In service
Development
1970's - 1990's
Developer
Soviet Union - Rubin central design bureau
Russia - Rubin central design bureau
Production
1996 - present
Producer
Russia - Admiralty shipyard, St Petersburg
Main producer
Russia - Sevmash, Severodvinsk
2 ships
Russia - Krasnye Sormovo, Nizhny Novgorod
1 ship
Unit cost
About $ 300 million for export sales
Number produced
2 Project 636
10 Project 636M
8+2 Project 636.1
7+5 Project 636.3
Designations
Improved Kilo (NATO reporting name)
Varshavyanka
Russian for "Warsaw"

Description


Introduction

Project 636 Varshavyanka is a class of diesel-electric attack submarines of Russian origin. In the West these ships are known as the "Improved Kilo class". The name Varshavyanka refers to the Warsaw pact. This class was initially developed for export to Warsaw Pact nations. After the fall of the Soviet Union the final stages of the development were financed by China, which is the major export customer for this class.

Layout

Project 636 is a further development of the earlier Project 877 Paltus class. The Project 636 features a longer pressurized hull, an automated targeting system, improved noise reduction and more powerful diesel engines.

Firepower

Project 636 has six 533mm torpedo tubes and up to 18 weapons can be carried. Various models of the Type 53 torpedo can be launched, including wire guided torpedoes such as TEST-71 and USET-80. Most Project 636 have the ability to launch Klub-S cruise missiles. The Russian Project 636.3 can launch the domestic Kalibr-PL variant. Instead of torpedoes up to 24 mines can also be carried. In Russian service a MANPADS system is carried.

Mobility

Project 636 is fitted with two diesel engines that charge the batteries and provide propulsion when surfaced or using the snorkel. When submerged below snorting depth an electrical motor is used. A single fixed pitch propeller provides propulsion. The maximum speed is 12 knots surfaced and 18 to 20 knots submerged. The maximum depth is 300 m, although for safety reasons a maximum of 240 m is maintained during regular operations.

Users

The main export client for the Project 636 is China, which acquired 10 ships. Algeria and Vietnam also acquired Project 636. Due to issues with the development of Project 677 Lada, Russia ordered six Project 636 for domestic use. This number was later doubled to 12 ships.

Details


Facts Project 636 class
General
Origin
Russia
Type
Diesel-electric attack submarine
Complement
52, including 12 officers (Pr 636M)
60, including 16 officers (Pr 636.3)
Dimensions
Displacement (surface)
2.350 t
Displacement (submerged)
3.950 t
Length
73.8 m at waterline
Beam
9.9 m at water line
12.8 m overall
Draft
6.2 m
Propulsion
Arrangement
Twin diesel, single electric motor
Power source
2x 1.500 kW 4DL-42M diesel
Motor
1x 5.500 hp PG-141M electric motor
2x 150 hp PG-142 auxiliary electric motor
Propulsion
1 shaft, 7 blade propeller
Mobility
Speed (surface)
12 kt (up to 17 kt reported)
Speed (submerged)
18 - 20 kt
Range
7.500 nm at 7 kt using snorkel
400 nm submerged at 3 kt
Depth
240 m operational
300 m maximum
Endurance
45 days
Sensors
Sonar
MGK-400V1 / MGK-400EM (Shark Gill)
MG-519EM Arfa (Mouse Roar)
Surface search
MRP-25 (Snoop Tray)
Combat data management
MVU-110EM
Self-defense
ESM
Squish Head
Torpedoes
Tube arrangement
6x 533mm
Weapon types
53-65 torpedo
TEST-71 torpedo
USET-80 torpedo
MG-74 Korund-2 decoy
Klub-S (for Pr 636M / 636.1)
Kalibr-PL (for Pr 636.3)
DM-1 mine
Weapon load
18 weapons, including 6 in tubes
24 mines instead of torpedoes
Surface to air
Type
9K310 Igla-1 or 9K38 Igla
Ammunition
8 missiles

Media


Related articles


Project 877 Paltus class

Project 636 Varshavyanka is a modernized development of the Project 877 Paltus class of diesel-electric submarines. Project 636 and 877 are externally very similar.