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NOTE: This article is about the RM-70 multiple rocket launcher in ArmA 2: ACR. For Czechoslovakian RM-70s in ArmA 3's CSLA Iron Curtain Creator DLC, see RM-70 (CSLA).


RM-70
Arma2-render-rm70.png
Faction Icon-side-blufor.png ACR
Type Self-Propelled Rocket Artillery
Seats 4 seats:
  • 1× Driver
  • 1× Gunner
  • 1× Cab Gunner
  • 1× Passenger
Item capacity Max:
  • 50× Weapons
  • 200× Magazines
  • 8× Backpacks
Top speed ~ 80 km/h
Fuel capacity 100 fuel units
Primary armament Main:
  • 1× 122 mm GRAD Rocket Pod
Secondary armament Secondary:
  • 1× UK-59 7.62 mm
Variants None
Games
ArmA II ACR Logo.png

The RM-70 is a wheeled self-propelled multiple rocket launcher vehicle used exclusively by Czech military forces in ArmA 2. It was added with the release of the Army of the Czech Republic DLC.

Overview

  • Role:
    • 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.
Armoury Description
»

Design

Premium content logo.png
This is a premium asset that requires ownership of the Army of the Czech Republic DLC.


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.

Armament
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.

Features
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.

RM-70, post-fire mission. Note the cab gunner manning the roof-mounted UK-59 GPMG.

Mobility
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.

Drawbacks
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).

Crew Capacity
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.

Protection

The RM-70 has a base armour value of 50.

Body

The vehicle's hull can incur up to 50 points of damage.

Engine

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.

Fuel tank

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.

Wheels

Each wheel can only take 15 points of damage before bursting.

Turret

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.

Armament

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

Arma2-vehicleweapons-rm70-grad.png
Base damage value Damage type Initial velocity (m/s)
340 High-Explosive 445

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.

UK-59

Arma2-vehicleweapons-rm70-pkt.png
Base damage value Aerodynamic friction Initial velocity (m/s)
12 -0.00096 850

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.

Capabilities

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).

Trivia

  • 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.

Gallery

External links

See also

Vehicles of comparable role and configuration

Vehicles of ArmA 2
Wheeled 9P117 SCUD-BATVBRDM-2* • BTR-40BTR-60BTR-90BM-21 Grad* • BusCarDingo 2 CZHatchbackHMMWV* • GAZJackal 2 MWMIKKamazLada* • LAV-25Military OffroadMotorcycle* (Old moto) • Mountain bike (Old bike) • MTVR* • Offroad* • Pandur II 8x8 CZPickup* • RM-70S1203SedanStryker (MGS) • SUV (Armored SUV) • T810TractorTouring CarTowing TractorUAZ-469* • Ural* • V3S* • Vodnik
Tracked 2S6M TunguskaAAVP-7A1BMP-2BMP-3BVP-1FV510 WarriorM1 Abrams* (M1A2 TUSK*) • M113M2 BradleyM270 MLRS* • T-34* • T-55T-72* (T-72M4 CZ) • T-90ZSU-23-4*
Rotor-wing AH-1ZAH-6J Little Bird (AH-6X) • AH-11 WildcatAH-64D* (AH-1) • CH-47F Chinook (Chinook HC4) • Ka-52Ka-60Ka-137Merlin HC3MH-6J Little BirdMi-8MTV-3* (Mi-17*) • Mi-24P (Mi-24D*, Mi-24V*) • UH-1Y (UH-1H) • UH-60 Black Hawk (MH-60S)
Fixed-wing A-10 Thunderbolt II* • An-2AV-8B HarrierC-130J Hercules* • F-35 Lightning IIL-159 ALCAL-39ZA (L-39C) • MQ-9 Reaper* • MV-22 OspreyPchela-1TSu-39 (Su-25*) • Su-34
Aquatic CRRCFishing BoatPBXRHIBSmall Boat
(Parenthesis) denote variants.
* indicates partial DLC dependency.
Operation Arrowhead | British Armed Forces | Private Military Company | Army of the Czech Republic
Arma2-factionicon-acr.png ACR - Vehicles (ArmA 2)
Wheeled ATVBRDM-2Dingo 2 CZHMMWV GPKMilitary OffroadPandur II 8x8 CZRM-70T810UAZ-469
Tracked BMP-2T-72M4 CZ
Rotor-wing Mi-171ShMi-24V
Fixed-wing L-159 ALCAL-39C
Aquatic PBX
(Parenthesis) denote variants.
Operation Arrowhead | Army of the Czech Republic
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