BM-21 Grad

BM-21 "Grad"
1372 bm 21 grad.JPG
Type Multiple rocket launcher
Place of origin  Soviet Union
Service history
In service 1964–present
Used by See Operators
Wars 1995 Cenepa War
2008 South Ossetia war
Production history
Produced 1963–present
Specifications (9K51)
Weight 13.71 tonnes (30,225 lb)
Length 7.35 m (24 ft 1 in)
Barrel length 3.0 m (9 ft 10 in)
Width 2.40 m (7 ft 10 in)
Height 3.09 m (10 ft 2 in)
Crew 4

Caliber 122.4 mm (4.81 in)
Barrels 40
Rate of fire 2 rounds/s
Muzzle velocity 690 m/s (2,264 ft/s)
Maximum range 40 km (25 mi)
Sights PG-1M panoramic telescope

Engine V-8 gasoline ZiL-375
180 hp (130 kW)
Suspension 6x6 wheeled
Operational
range
405 km (251 mi)
Speed 75 km/h (47 mph)

The BM-21 Grad (Russian: БМ-21 "Град") is a Soviet truck-mounted 122 mm multiple rocket launcher, developed in the early 1960s. BM stands for boyevaya mashina, ‘combat vehicle’, and the nickname grad means ‘hail’. In NATO countries, the system was initially known as M1964. Several other countries have copied it or developed similar systems.

Contents

Description

The BM-21 122 mm multiple rocket launcher (MRL) system entered service with the Soviet Army in 1963 to replace the aging 140 mm BM-14 system. It consists of a Ural-375D six-by-six truck chassis fitted with a bank of 40 launch tubes arranged in a rectangular shape that can be turned away from the unprotected cab. The vehicle is powered by a water-cooled V-8 180 hp gasoline engine, has a maximum road speed of 75 km/h (47 mph), road range of up to 750 kilometres (470 mi), and can cross fords up to 1.5 m (4 ft 11 in) deep. The original vehicle together with supporting equipment (including the re-supply truck 9T254 with 60 rockets) is referred to by the GRAU index 9K51; the launcher itself has the industrial index of 2B5. In 1976, the BM-21 was mounted on the newer Ural-4320 six-by-six army truck.

BM-21, side view.

The crew of five men can emplace the system and have it ready to fire in three minutes. The crew can fire the rockets from the cab or from a trigger at the end of a 64-metre (210 ft) cable. All 40 rockets can be away in as little as 20 seconds, but can also be fired individually or in small groups in several-second intervals. A PG-1M panoramic telescope with K-1 collimator can be used for sighting. The BM-21 can be packed up and ready to move in two minutes, which can be necessary when engaged by counter-battery fire. Reloading is done manually and takes about 10 minutes.

Each 2.87-metre (9 ft 5 in) rocket is slowly spun by rifling in its tube as it exits, which along with its primary fin stabilization keeps it on course. Rockets armed with high explosive/fragmentation, incendiary, or chemical warheads can be fired 20 kilometres (12 mi). Newer high explosive and cargo (used to deliver anti-personnel or antitank mines) rockets have a range of 30 kilometres (19 mi) and more. Warheads weigh around 20 kilograms (44 lb), depending on the type.

The relative accuracy of this system and the number of rockets each vehicle is able to quickly bring to bear on an enemy target make it effective, especially at shorter ranges. One battalion of eighteen launchers is able to deliver 720 rockets in a single volley. However, the system cannot be used in situations that call for pinpoint precision, unless one is ready to cover the surroundings of the target with fire.

Variants

BM-21.

Soviet Union

BM-21-1 during a military parade in Yekaterinburg, 9 May 2009.
Grad-1.

Adaptations of the launcher were/are produced by several countries including China, Czechoslovakia, Egypt, Iran, North Korea, Poland and Romania.

Belarus

Ukraine

People's Republic of China

Former Czechoslovakia

RM-70, a Czechoslovakian variant of the Grad.
RM-70/85.

Poland

WR-40 Langusta, a deeply modernized version, of the Soviet BM-21 launcher.

Egypt

The Egyptians domestically manufacture the rockets "Sakr-36" and "Sakr-18" with a respective range of 36 and 18 km (11 mi), and the latest "Sakr-45" with a superior range of 45 km (28 mi). Rather than a standard HE-Frag round, the Egyptian military prefers a 23-kilogram (51 lb) cluster munition, which can be extremely effective against lightly armored equipment and troop concentrations. Both rockets, as well as the original Soviet models of course, are fired by locally manufactured rocket launchers like the RL-21 (copy of BM-11) and RC-21 (copy of BM-21, similar to the Hadid HM20). The Helwan Machine Tools Company also produces portable systems with one, three, four and eight launch tubes.

Gaza Strip

Hamas and other armed organisations in the Gaza Strip do not operate BM-21 truck-based launchers.[1]

They have used small man-portable launchers for rocket attacks against Israel, using improvised Qassam rockets, and individual 122 mm rockets which have been smuggled into Gaza, including the type used as ammunition for the BM-21 Grad and other Katyusha rocket launchers. The 122 mm rockets used by these groups in Gaza have a range of about 40 km (25 mi), and can reach the Israeli towns of Ashdod, Beer-Sheva, Ofakim, Gedera and Gan Yavne.

Ethiopia

The Homicho Ammunition Engineering Complex produces the rockets while the Bishoftu Motorization Engineering Complex produces the launching tubes and has converted existing trucks to diesel engine. Bishoftu motorization has also produced a six tube launcher to be mounted on light trucks.

North Korea (DPRK)

Iran

D.I.O. from Iran produces copies of the BM-11 and BM-21 systems that can fire the original Soviet rockets as well as the locally developed "Arash" with a range of 20.5 km (12.7 mi). There is also a rocket with a range of 75 km (47 mi).

Pakistan

Romania

APRA-40, a Romanian variant of the Grad, and a 6-rocket launcher.

South Africa

Projectiles

Origin Ammunition type Minimum range Maximum range Length Weight Warhead weight
metres miles metres miles metres ft in kg lb kg lb
9M22U (M-21OF) USSR/Russia Fragmentation-HE 5,000 3.1 20,380 12.66 2.87 9 ft 5 in 66.6 147 18.4 41
9M28F USSR/Russia Fragmentation-HE 1,500 0.93 15,000 9.3 2.27 7 ft 5 in 56.5 125 21.0 46
9M28K USSR/Russia Anti-tank mines 13,400 8.3 3.04 10 ft 0 in 57.7 127 22.8 50
9M43 USSR/Russia Smoke 20,000 12 2.95 9 ft 8 in 66 150 20.2 45
9M217 USSR/Russia Anti-tank submunitions 30,000 19 3.04 10 ft 0 in 70 150 25 55
9M218 USSR/Russia HEAT submunitions 30,000 19 3.04 10 ft 0 in 70 150 25 55
9M519 USSR/Russia RF jammer 18,500 11.5 3.04 10 ft 0 in 66 150 18.4 41
9M521 USSR/Russia Fragmentation-HE 40,000 25 2.87 9 ft 5 in 66 150 21 46
9M522 USSR/Russia Fragmentation-HE 37,500 23.3 3.04 10 ft 0 in 70 150 25 55
PRC-60 USSR/Russia Underwater charge (for BM-21PD) 300 0.19 5,000 3.1 2.75 9 ft 0 in 75.3 166 20 44
Type 90A China Fragmentation-HE 12,700 7.9 32,700 20.3 2.75 9 ft 0 in 18.3 40
M21-OF-FP Romania Fragmentation-HE 5,000–6,000 3.1–3.7 20,400 12.7 2.87 9 ft 5 in 65.4 144 6.35 14.0
M21-OF-S Romania Fragmentation-HE 1,000 0.62 12,700 7.9 1.927 6 ft 3.9 in 46.6 103 6.35 14.0
Oghab Iran HE fragmantation 45,000 28 4.82 15 ft 10 in 360 790 70 150
Fajr-3 Iran HE fragmantation 43,000 27 5.2 17 ft 1 in 407 900 45 99
Fajr-5 Iran HE fragmantation 75,000 47 6.485 21 ft 3.3 in 915 2,020 90 200
Sakr-45A Egypt AT / AP submunitions 42,000 26 3.310 10 ft 10.3 in 67.5 149 24.5 54
Sakr-45B Egypt Fragmentation-HE 45,000 28 2.900 9 ft 6.2 in 63.5 140 20.5 45

Also Incendiary, Chemical, Illumination, Antipersonnel mines.

Operators

See also

References

External links