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RBU-6000 Smerch-2


RPK-8


Overview


RBU-6000

RBU-6000 Smerch-2 launcher on Udaloy class destroyer.
Source: Hunini - © GNU Attribution Share Alike license

Origin
Soviet Union
Type
Naval ASW system
Entered service
1961
Status
In service
Development
Late 1950's
Developer
Soviet Union
Production
1960's - present
Producer
Soviet Union
Russia
Number produced
Several hundred systems
Designations
RBU / Reaktivno-Bombovaja Ustanovka
Russian for "reactive charge installation"
Smerch
Russian for "waterspout"
RPK-8 (variant with 90R rocket)
Notable users
Soviet Union
India

Description


Introduction

The RBU-6000 Smerch-2 is a naval anti-submarine warfare rocket depth charge system of Soviet origin. It was developed in the 1950's and remains in widespread use today. The RBU-6000 proved to be a major upgrade over the rudimentary designs of World War 2 and early post war designs.

Design

The visible element of the RBU-6000 is the distinctive pedestal mounted 12-tube launcher. This remote controlled launcher is fed from a below deck magazine using a hoist system. The launcher is controlled by a fire control system that uses sonar input. Older fixed mounting launchers required the entire ship to be steered in order to aim. The RBU-6000 can rotate and elevate, and is stabilized for both pitch and roll.

Firepower

The RBU-6000 uses the RGB-60 rocket powered depth charge. This is a lightweight unguided depth charge with impact fuse and 25 kg high explosive warhead. In the mid 1960's a proximity fuse option was introduced. Upon explosion nearby depth charges are triggered, adding to the concussive effect. The more recent RPK-8 upgrade uses a smart 90R self-guiding depth charge with shaped charge warhead capable of penetrating double hull submarines. Unlike the RBU-6000 the RPK-8 can also be used in a torpedo defense role.

Fire control

The RBU-6000 is operated using the Burya fire control system, which is also used in conjunction with the RBU-1000 Smerch-3. Sonar input is used to plot a firing solution. The operator selects a ripple of 1 to 12 rockets to be fired. The unmanned 12-tube launchers are unmanned and stabilized for pitch and roll. Various types of sonar systems can be used. These range from simple systems for use on corvettes to advanced sonar suites used on dedicated anti-submarine warfare destroyers.

Platforms

The RBU-6000 is the most common type of rocket depth charge systems for blue water use. The RBU-6000 was installed on many Soviet corvettes, frigates, destroyers and cruisers introduced since the early 1960's and it remains in Russian service today. Many of these systems were exported, both on ships built in the Soviet Union and integrated on local designs.

Factsheet


Facts RBU-6000 Smerch-2
General
Origin
Soviet Union
Type
Naval ASW rocket launcher
Ordnance
Type
212mm RGB-60 rocket anti-submarine depth charge
Launch tubes
12 tubes
Rate of fire
2.4 rockets per second
Selectable 1, 2, 4, 8 or 12 rocket ripple
Range
0.35 km minimum
5.8 km maximum
Mount
Feed mechanism
Automatic loader with magazine below deck
Ammunition
72 or 96 round magazine
Manually fed hoist from the magazine
Traverse
180° left and 180° right
Traverse rate
30°/s powered
4°/s manual backup mode
Elevation
-15 to +65°
Stabilization
Up to 20° pitch and 7° roll
Operation
Crew
Unmanned launcher
Fire control
Burya fire control system, uses sonar input
Manual plotting for shore bombardment role
Dimensions
Weight
3.1 t empty
Length
2.0 m
Width
2.25 m
Height
1.75 m
Deck penetration
Ammunition handling room below deck
Power supply
220/380 V at 50 Hz
Power consumption
12 kW for twin launcher setup

Media


Ammunition types


Facts RGB-60 90R
General
Origin
Soviet Union
Type
Rocket powered depth charge
Dimensions
Diameter
212 mm
Length
1.87 m
Weight
119.5 kg
Warhead
Filling
23.5 kg explosive
Fuse type
Contact and programmed depth level
Fuse model
UDV-60
Application
Projection method
RBU-6000 Smerch-2 launcher
Range
0.3 km minimum
5.8 km maximum
Flight speed
400 m/s
Depth
10 m minimum
500 m maximum
Sink rate
11.6 m/s

Related articles


RBU-1000 Smerch-3

The RBU-1000 is derived from the RBU-6000 design. It fires much larger rockets at much shorter ranges. The fire control, launcher and reloading mechanism are very similar to the RBU-6000.