Munitions

9M55K cargo rocket

Also known as
  • 9M55K
  • 9M55K Smerch rocket
  • 9M55K cluster rocket
  • 9M55K cargo rocket with 9N235 submunitions
  • 9M55K-series Smerch cluster rocket

The 9M55K is a Soviet/Russian 300 mm Smerch cargo rocket that disperses 72 9N235 fragmentation submunitions from a 9K58 / BM-30 Smerch-family launcher. Official export data and open-source investigations place it in the 20 to 70 km Smerch rocket family, while conflict reporting documents the rocket in Syria, Ukraine, and the 2020 Nagorno-Karabakh war.

Role in Conflicts

Role in conflict
Area-effect cluster rocket fire

Human Rights Watch identified 9M55K Smerch rockets containing 9N235 submunitions during the 2020 conflict and found evidence that Armenia or Nagorno-Karabakh forces used Smerch cluster munition rockets.

Documented Theater Evidence

Open-source and monitoring reports identify the 9M55K by its Smerch rocket body, 300 mm cargo section, and associated 9N235 fragmentation submunitions. Attribution is source-dependent: Syria reporting leaves the supply path uncertain, while Ukraine and Karabakh sources provide more specific side or force context.

ConflictDocumented evidenceAttribution caveat
2011 Syrian Civil War9M55K rocket remnants and an unexploded 9N235 submunition around Kafr Zita.ARES assessed use in Syria but noted uncertainty over how the weapons and launch systems were obtained.
2014 Russia-Ukraine War9M55K-series Smerch remnants, 9N235/9N210 submunitions, and monitoring reports in 2014-2015 and after February 2022.Sources identify both Russian and Ukrainian stocks and use, with specific 2022 incidents attributed to Russian forces in several reports.
2020 Nagorno-Karabakh Conflict9M55K Smerch rockets containing 9N235 submunitions during the 2020 fighting.Human Rights Watch attributed evidence of Smerch cluster-rocket use to Armenia or Nagorno-Karabakh forces.
Profile / Specs

Profile

Origin
Soviet Union / Russia
Built by
NPO Splav
Type
300 mm cluster cargo rocket
Service note
Late Soviet period to present
Designer
Splav State Research and Production Association
Designed
Late Soviet period
Produced
Soviet and Russian production

Specifications

Caliber
300 mm
Launch platform
9K58 / BM-30 Smerch family; compatible with 9K515 Tornado-S
Range
20-70 km
Weight
800 kg
Length
7,600 mm
Warhead weight
243 kg
Payload
72 x 9N235 fragmentation submunitions
Submunition weight
1.75 kg
Submunition explosive fill
0.32 kg
Submunition self-destruct time
110 seconds
Propulsion
Solid-propellant rocket motor
Variants

The 9M55 Smerch family uses the same 300 mm launcher class with different warheads; the 9M55K designation is the fragmentation-submunition cargo round carrying 72 9N235 submunitions.

VariantConfigurationDesignation notes
9M55K1 Smerch rocket, 300 mm Smerch rocket, Munitions9M55K1 Smerch rocketSensor-fuzed submunition round

ARES lists 9M55K1 as the Smerch-family rocket with a sensor-fuzed submunition warhead, distinct from the 9M55K fragmentation-submunition payload.

Sources: 9M55K Cargo Rockets and 9N235 Submunitions in Syria

9M55K4 Smerch rocket, 300 mm remote mine-laying rocket, Munitions9M55K4 Smerch rocketAnti-tank mine-scattering round

ARES lists 9M55K4 as the Smerch-family rocket with an anti-tank mine-scattering warhead.

Sources: 9M55K Cargo Rockets and 9N235 Submunitions in Syria

9M55K5 cumulative-fragmentation submunition rocket, 300 mm rocket with cassette warhead carrying cumulative-fragmentation submunitions, Munitions9M55K5 cumulative-fragmentation submunition rocketShaped-charge fragmentation submunition round

ARES lists 9M55K5 as the Smerch-family rocket with shaped-charge fragmentation submunitions rather than the 9M55K's 9N235 fragmentation submunitions.

Sources: 9M55K Cargo Rockets and 9N235 Submunitions in Syria

Carried Submunitions

The 9M55K is the fragmentation-submunition cargo member of the Smerch rocket family.

Carried itemItem typeCarriage evidence
9N235 cluster submunition, High-explosive fragmentation cluster submunition, Munitions9N235 cluster submunitionHigh-explosive fragmentation submunition

Rosoboronexport, ARES, and Human Rights Watch identify the 9M55K as a 300 mm Smerch cargo rocket carrying 72 9N235 fragmentation submunitions.

Sources: Rosoboronexport 9M55K catalog page, 9M55K Cargo Rockets and 9N235 Submunitions in Syria, Technical Briefing Note: Cluster Munition Use in Ukraine

Launch Platforms

The 9M55K is a Smerch-family rocket fired from 300 mm multiple-launch rocket systems.

LauncherLauncher typeLaunch evidence
BM-30 Smerch, 300 mm heavy multiple launch rocket system, ArtilleryBM-30 Smerch300 mm multiple launch rocket system

ARES identifies the 9M55K as fired from the 9K58 Smerch, and CAT-UXO describes the 9M55-series rocket as a BM-30 heavy multiple-launch rocket-system projectile.

Sources: 9M55K Cargo Rockets and 9N235 Submunitions in Syria, 300mm smerch 9m55 rocket

Tornado-S, 300 mm multiple launch rocket system, ArtilleryTornado-S300 mm multiple launch rocket system

Rosoboronexport describes the 9K515 Tornado-S export launcher as based on Smerch and able to fire all rocket projectiles used by the 9K58 Smerch.

Sources: 300mm 9K515 MLRS

Timeline

9M55K cargo rocket Key Events

  1. Syria use documented

    ARES documented 9M55K cargo-rocket components and 9N235 submunition evidence from the Kafr Zita area in Syria.

  2. Ukraine use reported near Kramatorsk

    ARES reported imagery and video suggesting 9M55K cargo rockets with 9N235 submunitions had been used near Kramatorsk.

  3. OSCE identifies 9M55K rocket parts in Luhansk

    The OSCE Special Monitoring Mission identified rocket parts in Luhansk as consistent with 9M55K Smerch rockets and described cluster-munition damage in the affected residential area.

  4. Karabakh conflict technical note

    Human Rights Watch published a technical note identifying 9M55K Smerch rockets with 9N235 submunitions during the 2020 Nagorno-Karabakh conflict.

  5. Full-scale invasion reporting

    Human Rights Watch reported 9M55K-series Smerch cluster rocket use in Kharkiv during the February 2022 escalation of the 2014 Russia-Ukraine War.

Media
Related Weapon Systems
BM-30 Smerch, 300 mm heavy multiple launch rocket system, ArtilleryArtilleryBM-30 Smerch300 mm heavy multiple launch rocket systemThe BM-30 Smerch, also designated 9K58, is a Soviet-designed heavy multiple launch rocket system built around 300 mm rockets and a 12-tube launcher on an 8x8 wheeled chassis. Its ammunition family includes high-explosive, cargo, mine-laying, sensor-fuzed, and thermobaric rounds, making Smerch a deep-fire artillery system rather than a front-line direct-fire weapon. In Ukraine, Syria, and Nagorno-Karabakh, documented Smerch-family remnants and firing reports tie the launcher to long-range area fires, including cluster-munition attacks.
9M542 extended-range high-explosive rocket, 300 mm extended-range high-explosive fragmentation rocket, MunitionsMunitions9M542 extended-range high-explosive rocket300 mm extended-range high-explosive fragmentation rocketThe 9M542 is a Russian 300 mm extended-range high-explosive fragmentation rocket projectile for the 9K58 Smerch family and compatible modernized launchers. Missilery describes the export-oriented projectile as a deep upgrade of the 9M55K with an inseparable HE-fragmentation head, 820 kg projectile mass, 150 kg warhead, 70 kg explosive fill, 9B708 control-system unit, and 40 to 120 km range. Rostec later listed it as Splav-produced extended-range ammunition used in Smerch launchers at SITDEF-2013.

Sources