Artillery / Surface to surface missiles / 4K51 Rubezh

4K51 Rubezh

General Facts

  • TYPE
    Coastal defense system

  • ORIGIN
    USSR

  • NICKNAMES
    SS-C-3 Styx (NATO designation)
    Raketenkomplex Rubesh-Ä (East German designation)

  • DESIGNED
    1970 - 1978

  • DESIGNER
    ?

  • PRODUCTION
    1978 - ?

  • PRODUCERS
    Russia
    USSR

  • QUANTITY
    Unknown

  • UNIT COST
    Unknown

  • CHARACTERISTICS
    High level of mobility
    Autonomous system
    Limited production costs
    Subsonic missiles
    Limited range

Introduction

The 4K51 Rubezh system is a late Cold War era coastal defense system of Soviet origin. It is best known by its NATO designation SS-C-3 Styx. The 4K51 is a much less complex design than the previous 4K44 Redut (SS-C-1 Sepal) and S-2 Sopka (SS-C-2 Samlet).

Layout

For a coastal defense system the 4K51 uses surprisingly little components. All subsystems are fitted onto one vehicle. This vehicle is based on the large MAZ-543 8x8 truck chassis. The driver's cab and engine are mounted at the front. The command module and radar are in the center of the vehicle. The large twin round launcher is fitted at the rear.

Firepower

The 4K51 fires the large P-15 Termit missile, known in the West as the SS-N-2 Styx. The P-15M versions with mid course updates, the P-20 version with active radar guidance and P-21 version with infra-red guidance can be launched. The large twin round launcher is rotated either to the left or right, in the direction of the target. Normally each launch unit is accompanied by two 6x6 trucks outfitted with a crane and a spare missile.

Targeting

The command module houses the remaining four crew members needed to operate the weapon. On top of the command module the MR-331 Rangout (Square Tie) or 3Ts-25 Garpun surface search radar is fitted, which is raised when in use. The 4K51 can operate autonomously using its own radar to detect and track targets. However, it is mostly used in conjunction with other means of detection, such as land based radars or aircraft.

Mobility

The 4K51 is based on the massive MAZ-543 high mobility truck. Although it is a heavy and large system the large 8x8 truck provides good all terrain performance. In the mid-1980's the system was upgraded by using the improved MAZ-543M chassis.

Users

The foremost user of the 4K51 system has been the USSR. Like the ship based version of the Termit missile the 4K51 was widely exported. It was mainly adopted by nations in Eastern Europe and the Middle East.

Variants

4K51 Rubezh

The 3P51 fire control and launch vehicle is the sole component of the 4K51 Rubezh coastal defense system. The twin round launcher, command and control module and radar are fitted onto the vehicle.

3P51: Original production version of the 4K51 Rubezh that uses the MAZ-543 chassis.
3P51M: Improved production model based on the improved MAZ-543M chassis. It was introduced in the 1980's and is the most common version.

TypeCoastal defense system
Crew5 (commander, driver, radio operator, gunner, radar operator)
Length14.0 m
Width3.2 m
Height4.1 m on the move, 7.2 m with radar raised
Ground clearance?
Weight40.5 t
Ground pressure?
WheelbaseMAZ-543M 8x8 truck, 2.2 + 3.3 + 2.2 m wheelbase
Turn radius13.5 m
EngineD12A-525A 38.9 L V12 diesel, 525 hp at 2.100 rpm
Power ratio13.0 hp/t
TransmissionHydromechanical, 3 forward, 1 reverse
Speed60 km/h
Fuel550 L
Range450 km
Wall0.78 m
Trench3.38 m
Gradient57% gradient, 44% slope
Fording1.3 m
ArmorNo
NBC equipmentNo
Night visionNo
SmokeNo
RemarksGarpun detection and fire control radar
ArmamentSS-N-2 Styx SSM (2x)
Weapon1SS-N-2 Styx anti-ship missile
rotating twin launcher at rear of vehicle
2 rounds, both ready to fire
Weapon2-
Weapon3-
Weapon4-
Weapon5-
Weapon6-

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