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RM-70



Overview


RM-70

RM-70 showing its off road capability.
Source: Adamicz - © copyright lies with original owner

Origin
Czechoslovakia
Type
Multiple rocket launcher
Entered service
1971
Status
In service
Development
Late 1960's
Developer
Czechoslovakia - ZTS Dubnica nad Váhom
Production
1971 - present?
Producers
Czechoslovakia
Slovakia
Designations
Vz 70
RM-70 in Czechoslovak service
M1972
NATO designation for RM-70
122 RakH 89
Finnish military service
RM-70M
Alternative name for RM-70/85

Description


Introduction

The RM-70 is a multiple rocket launcher of Czechoslovak origin. It was developed in the late 1960's to replace the old RM-51. The RM-70 uses the same 122mm rockets as used in the Soviet BM-21, which is the world's most common rocket artillery system. Although it is not as cheap and light as the BM-21 the RM-70 is seen as a more capable with its armor, second ammunition load and better off road performance.

Layout

The RM-70 is based on the Tatra T-813 8x8 heavy duty military truck and is fitted with an armored cab and the same 40 round 122mm rocket launcher as used on the Soviet BM-21 Grad. Between the armored cab and the launcher a second load of 40 missiles is stored which can be reloaded much faster than on the BM-21. The later RM-70/85 uses the T-815 chassis and has no armored cab.

Firepower

The RM-70 fires the same spin stabalized 122mm rockets as used in the Soviet BM-21 Grad. A variety of warheads is available, including various Czechoslovak versions. The standard rockets have a range of 20 km and longer range rockets have been developed. The 40 rockets can be ripple fired in 20 seconds. The time in and out of action is 2.5 and 3 minutes respectively.

Protection

The original RM-70 features an armored steel cab that protects the crew from small arms fire and shell splinters. In order to fire at least one crew member must exit the vehicle. An NBC system is fitted, also on the RM-70/85 that has a standard truck cab.

Mobility

The original RM-70 is based on the proven T-813 heavy off road truck. The later RM-70/85 uses the newer T-815 chassis. The 8x8 chassis provides good mobility both on road and off road. The maximum road speed is 75 km/h for the RM-70 and 85 km/h for the RM-70/85.

Users

The RM-70 was widely used in Eastern Europe during the Cold War era. After the Cold War war large quantities became surplus and exports increased. The RM-70 is used all over the world including in Eastern Europe, Africa, the Middle East, Asia and South America.

Variants


RM-70

RM-70 rocket launcher with armored cab.
Source: Jano Gallo - © GNU Attribution - Share Alike license

RM-70

The RM-70 is the first production model and the most common version. The RM-70 is based on the Tatra T-813 military 8x8 truck chassis and is easily identified by its armored forward control cab. The RM-70 can be fitted with a large metal dozer blade for digging fire positions or clearing obstacles. The 40 round 122mm rocket launcher is identical to the one used on the BM-21 Grad.

RM-70/85

Polish army RM-70/85 with softskin cab and clear view of 40 round launcher and sight system.
Source: Polish ministry of defense - © GNU Attribution - Share Alike license

RM-70/85

The RM-70/85 is a new version of the RM-70 that was introduced in 1985. The original Tatra T-813 chassis is replaced by the newer and more capable similar size T-815 chassis. Instead on an armored cab the original T-815 softskin military truck cab is fitted. The optional dozer blade can still be fitted. The RM-70/85 is also known as the RM-70M, but should not be confused with the Slovakian RM-70/85M which is equipped with a new navigation system and longer range rockets.

Details


Facts RM-70 RM-70/85
General
Origin
Czechoslovakia
Type
Multiple rocket launcher
Crew
4 + 2 (commander, driver, 2 operators, 2 passengers)
Dimensions
Weight
25.3 t combat load
26.4 t with dozer blade
Length
8.75 m
Width
2.5 m
Height
2.7 m
Main armament
Type
122mm Grad artillery rockets
Mount
40 round launcher on turntable
Ammunition
80, 40 ready to fire
Elevation
0 to +55°
Traverse
125° left and 70° right
Chassis
Chassis type
Wheeled chassis, 8x8
Wheelbase
1.65 + 2.2 + 1.45 m
Tread
2.03 m
Tire size
15.00 x20
Automotive
Engine
Tatra T-930-3 V12 diesel
Power output
270 hp at 2.700 rpm
Transmission
Manual, 20 forward, 4 reverse
Fuel
400 L
Mobility
Speed
75 km/h
Range
1.100 km
Power to weight ratio
10.7 hp/t
Obstacle crossing
Ground clearance
0.4 m
Wall
0.6 m
Trench
1.6 m
Gradient
60 %
Fording
1.4 m
Protection
Armor type
Steel
NBC system
Yes
Smoke system
No
Equipment
Night vision
No
Engineer equipment
Optional VZ-T815 dozer blade

Media


Related articles


RM-70 Modular

The RM-70 Modular is a Slovakian upgrade of existing RM-70 systems.