Munitions

9M21 rocket

Also known as
  • FROG-7
  • FROG-7A
  • FROG-7B
  • Luna-M rocket
  • 9M21F
  • 9M21F2
  • 9M21K
  • 9M21B
  • 9M21B1
  • 9M21G
  • 9M21D
  • R-65
  • R-70

The 9M21 is the Soviet unguided, spin-stabilized artillery rocket fired by the 9K52 Luna-M/FROG-7 system. It paired a single-stage solid motor with interchangeable warhead sections, giving Luna-M batteries conventional high-explosive, cluster, chemical, nuclear, and leaflet-dispensing options. Direct conflict sources trace FROG-7 or 9M21 use by Syria, Iraq, and Houthi-aligned forces.

Role in Conflicts

Side
Syria

Syria fielded FROG-7 missiles in the October 1973 war; Wisconsin Project's missile chronology says Syria launched them at Israeli airbases during the conflict.

Profile / Specs

Profile

Origin
Soviet Union
Type
Unguided artillery rocket
Service note
Cold War era
Designer
Soviet NII-1 MITT and OKB-329 GKAT design organizations for the Luna-M system
Designed
1960-1964
Produced
1964-1970s

Specifications

Guidance
Unguided, spin-stabilized ballistic flight
Propulsion
Single-stage solid-fuel rocket motor with rotation motor section
Range
About 15-65 km for listed 9M21 family variants
Length
About 8.96-9.40 m depending on variant
Diameter
About 0.54 m
Launch weight
About 2,432-2,486 kg depending on variant
Warhead
HE-fragmentation, airburst HE-fragmentation, submunition, nuclear, chemical, and leaflet-dispensing variants
Launch method
Single-rail wheeled TEL with crane-assisted reloads
Accuracy
CEP roughly 400-700 m
Rocket Family Context

The 9M21 is best read as a munition family within the Luna-M complex: the same launcher relationship covered conventional, submunition, nuclear, chemical, leaflet, and training rockets. That makes the warhead section the main public distinction between 9M21 variants rather than the launch platform.

Launch interface

WeaponSystems.net identifies the 9P113 launch vehicle as carrying one 9M21-series rocket on a single rail, while the 9T29 transporter carried reload rockets but did not launch them.

Flight profile

The rocket used an unguided ballistic flight path with spin stabilization, leaving accuracy much lower than later guided tactical missiles.

Variants

Open references treat 9M21 as a rocket family for Luna-M rather than a single fixed warhead. Western reporting separates FROG-7A and FROG-7B forms, while Soviet-style suffixes identify payload or warhead fits.

VariantConfigurationDesignation notes
FROG-7AEarly Western-reported FROG-7 form

The Gurevich-hosted FAS-derived reference says FROG-7A was introduced in 1965 as a replacement for earlier FROG variants.

Sources: Tactical Ballistic Missile System FROG-7B

FROG-7BLonger-warhead Western-reported form

The same reference identifies FROG-7B as a 1968 improvement with a longer warhead section.

Sources: Tactical Ballistic Missile System FROG-7B

9M21FUnitary HE-fragmentation rocket

WeaponSystems.net describes 9M21F as the conventional HE-fragmentation rocket, with R-65 as its export designation.

Sources: 9M21 rocket

9M21F2Airburst HE-fragmentation rocket

WeaponSystems.net separates 9M21F2 as an airburst HE-fragmentation version using a radar proximity fuze.

Sources: 9M21 rocket

9M21KSubmunition rocket

WeaponSystems.net lists 9M21K as an airburst submunition version with R-70 as the export designation.

Sources: 9M21 rocket

9M21B / 9M21B1Nuclear-warhead rockets

WeaponSystems.net distinguishes the 9M21B and 9M21B1 nuclear variants by their 9N32 and 9N32M warhead fits.

Sources: 9M21 rocket

9M21GChemical-warhead rocket

WeaponSystems.net identifies 9M21G as the chemical-warhead version with a VX aerosol payload.

Sources: 9M21 rocket

9M21DLeaflet-dispensing rocket

WeaponSystems.net lists 9M21D with a 9N18A container warhead for leaflet dispersal.

Sources: 9M21 rocket

Launch Platforms

The 9M21 was created for the wheeled Luna-M complex and fired from its single-rail launcher.

LauncherLauncher typeLaunch evidence
9K52 Luna-M artillery rocket system, Artillery rocket system, Artillery9K52 Luna-M artillery rocket systemSingle-rail launcher

Missilery.info says the upgraded Luna-M complex was created for the 9M21 missile, and WeaponSystems.net identifies the Luna-M launch vehicle as carrying a single 9M21 rocket on its launch rail.

Sources: 9M21 rocket, Tactical missile system 9K52 Luna-M

Timeline

9M21 rocket Key Events

  1. First 9M21 launch

    Missilery.info places the first launch of the 9M21 missile in 1961 during Luna-M development.

  2. Mass production and service entry

    Missilery.info identifies 1964 as the year mass production and service entry began for the Luna-M complex and 9M21 missile.

  3. Submunition variant introduced

    WeaponSystems.net lists the 9M21K airburst submunition rocket as introduced in 1969.

  4. Syrian October War launch

    Wisconsin Project's Syria missile chronology says Syria launched FROG-7 missiles at Israeli airbases during the October 1973 war.

  5. Early Iran-Iraq War firing

    CSIS records Iraq firing FROG-7 rockets in the first weeks of the Iran-Iraq War, including attacks near Dezful and Ahwaz.

  6. 9M21 debris identified in Syria

    Brown Moses identified 9M21 and 9D19 markings on debris photographed after a reported Belioun/Jabal Zawiyeh strike.

Media
Related Weapon Systems
140 mm M-14 rocket, 140 mm unguided artillery rocket, MunitionsMunitions140 mm M-14 rocket140 mm unguided artillery rocketThe 140 mm M-14 is a Soviet spin-stabilized artillery rocket family developed for BM-14 and RPU-14 multiple rocket launchers. Open references identify high-explosive fragmentation, smoke/incendiary, and chemical-warhead branches; conflict documentation places an M-14 rocket motor in the 2013 Western Ghouta attack during the Syrian Civil War, with attribution and payload evidence handled narrowly because public imagery and UN reporting identify the motor and attack context more clearly than a recovered intact M-14 warhead.

Sources