|Type||Self-Propelled Rocket Artillery|
|Top speed||~ 80 km/h|
|Fuel capacity||100 fuel units|
- Indirect fire support
|«||The RM-70 (raketomet vzor 1970) multiple rocket launcher is a Czechoslovak army version and the heavier variant of the BM-21 Grad multiple rocket launcher, providing enhanced performance over its parent artillery system.
Using an 8x8 truck chassis as its base, the RM-70 is a 122 mm multiple rocket launcher that was developed to replace the older RM-51 MRL in Czech service.
It is armed with a 122 mm rocket artillery pod on the rear flatbed, and has up to 40 high-explosive (HE) rockets stored, ready-to-fire. The cab-mounted UK-59 medium machine gun on the other hand, feeds from a single 100-round 7.62 mm belt box and has a further two more boxes to spare.
Capability and role-wise, the in-game RM-70 is almost identical to its Russian-made counterpart in several ways; its launcher pod for instance, is loaded to fire the same munitions used by the BM-21 and also carries the exact same amount of rockets as the former.
The main difference with the RM-70 is that unlike the BM-21, its cab is armoured and has reinforced glass with armoured shutters which provide better protection for the crew from small arms fire. It is also unique for possessing a roof-mounted MMG, which allows the vehicle's crew to defend themselves from enemy infantry that get too close for them to engage with the rocket launcher.
The RM-70 controls better on unstable terrain compared to the BM-21, and handles more smoothly while driving off-road as well as being able to accelerate faster on all surfaces.
Its only downside stems from its munitions, which have significantly less destructive power compared to the 227 mm rockets fired by its American counterpart; though as compensation it does carry more spare rockets (the M270 is limited to 12 rockets at maximum whereas the RM-70 has 40).
The RM-70 has a total of four seats in its cab; two main seats for the primary crew (the driver and main gunner) and two more for a secondary gunner who handles the roof-mounted UK-59, along with one spare seat for a passenger.
The RM-70 has a base armour value of 50.
The vehicle's hull can incur up to 50 points of damage.
The engine can only take 20 points of damage before failure. Only 20% of damage will be transferred onto the RM-70's main "health" pool.
A damaged engine will prevent the RM-70 from attaining its top speed.
The fuel tank can only survive 15 points of damage before rupturing. 50% of damage is always transferred onto the RM-70's main "health" pool.
A damaged fuel tank will cause the RM-70 to gradually leak fuel over time.
Each wheel can only take 15 points of damage before bursting.
The rocket pod can withstand only 40 points of damage. Only 30% of damage is shared with the RM-70's "health" pool.
Disabling this component will prevent the gunner from adjusting the pod's elevation and rotation.
The RM-70's primary "gunner" operates the 122 mm GRAD rocket pod fitted to the back of the truck, while cab gunner handles the UK-59 7.62 mm medium machine gun mounted onto the cab's roof:
122 mm GRAD
|Base damage value||Damage type||Initial velocity (m/s)|
Multiple rocket launcher. Launches 122 mm rockets fitted with high-explosive (HE) warheads that are highly effective against infantry and unarmoured/lightly-armoured ground vehicle targets.
Without a firing solution selected the GRAD can fire one rocket every 0.8 seconds. Rockets are hard launched with an initial velocity of 445 m/s, and take a further 1 second post-launch to reach a top speed of 700 m/s in mid-flight. The warheads have a blast radius of 30 metres.
|Base damage value||Aerodynamic friction||Initial velocity (m/s)|
7.62 mm general-purpose machine gun. Useful for self-defence purposes against infantry and unarmoured ground vehicles that are too close for the GRAD rocket pod to engage.
It can attain a fire rate of up to 667 rounds per minute and has a muzzle velocity of 850 m/s. Accuracy-wise, it has a fixed dispersion of 0.001 rad at ranges of up to approximately 900 metres.
The UK-59 can be freely swivelled in any direction horizontally but vertically, it is restricted to an elevation of only 10 degrees and a depression angle of 40 degrees.
The RM-70 is capable of launching all 40 of its rockets in less than 32 seconds.
The overall range arcs of the RM-70 vary from:
- Minimum: 1,450 to 3,330 metres
- Moderate: ~3,129 to 5,000 metres
- Maximum: ~4,002 to 10,100 metres
Because the artillery computer is actually incapable of firing at distances of less than 3,300 metres (this is the upper limit of the RM-70's minimum range arc), its true minimum range begins at 3,300 metres instead of 1,450 metres.
Its maximum range on the other hand, is shorter than that of the M270's, but makes up for it by being able to potentially land up to 20 rockets at the same location in a single volley by staggering its fire (the gunner must manually adjust the pod's azimuth to simulate MRSI).
- Unlike the other two rocket artillery vehicles, the RM-70 is not configured to be usable with the Artillery support module in the editor, which makes it completely unusable by the AI without modifying the settings of the module itself (at the config-level).
- This bug continues to exist in the latest Steam versions of the DLC and has yet to be fixed by the official patches.
- The RM-70 is the sole MRL vehicle of its kind in ArmA 2 that is armed with a cab-mounted MMG.
Vehicles of comparable role and configuration
- M270 MLRS (USMC/U.S. Army counterpart)
- BM-21 Grad (Russian Armed Forces/Takistani Army counterpart)
- Zamak MRL (AAF/LDF counterpart, ArmA 3: Tanks only)
|ACR - Vehicles (ArmA 2)|
|Wheeled||ATV • BRDM-2 • Dingo 2 CZ • HMMWV GPK • Military Offroad • Pandur II 8x8 CZ • RM-70 • T810 • UAZ-469|
|Tracked||BMP-2 • T-72M4 CZ|
|Rotor-wing||Mi-171Sh • Mi-24V|
|Fixed-wing||L-159 ALCA • L-39C|
|(Parenthesis) denote variants.|
Operation Arrowhead | Army of the Czech Republic