Katyusha rocket launcher

Initially, concerns for secrecy kept the military designation of the Katyushas from being known by the soldiers who operated them. They were called by code names such as Kostikov guns, after A. Kostikov, the head of the RNII, the Reactive Scientific Research Institute, and finally classed as Guards Mortars.[2] The name BM-13 was only allowed into secret documents in 1942, and remained classified until after the war.[3]

Because they were marked with the letter K (for Voronezh Komintern Factory),[3][4] Red Army troops adopted a nickname from Mikhail Isakovsky's popular wartime song, "Katyusha", about a girl longing for her absent beloved, who has gone away on military service.[5] Katyusha is the Russian equivalent of Katie, an endearing diminutive form of the name Katherine. Yekaterina is given the diminutive Katya, which itself is then given the affectionate diminutive Katyusha.[6]

German troops coined the nickname "Stalin's organ" (Stalinorgel), after Soviet leader Joseph Stalin, comparing the visual resemblance of the launch array to a pipe organ, and the sound of the weapon's rocket motors, a distinctive howling sound which terrified the German troops,[7] adding a psychological warfare aspect to their use. Weapons of this type are known by the same name in Denmark (Danish: Stalinorgel), Finland (Finnish: Stalinin urut), France (French: orgue de Staline), Norway (Norwegian: Stalinorgel), the Netherlands and Belgium (Dutch: Stalinorgel), Hungary (Hungarian: Sztálinorgona), Spain and other Spanish-speaking countries (Spanish: Órganos de Stalin) as well as in Sweden (Swedish: Stalinorgel).[5]

The heavy BM-31 launcher was also referred to as Andryusha (Андрюша, an affectionate diminutive of "Andrew").[8]

A battery of Katyusha launchers fires at German forces during the Battle of Stalingrad, 6 October 1942

Katyusha rocket launchers, which were built in Voronezh, were mounted on many platforms during World War II, including on trucks, artillery tractors, tanks, and armoured trains, as well as on naval and riverine vessels as assault support weapons. Soviet engineers also mounted single Katyusha rockets on lengths of railway track to serve in urban combat.

The design was relatively simple, consisting of racks of parallel rails on which rockets were mounted, with a folding frame to raise the rails to launch position. Each truck had 14 to 48 launchers. The M-13 rocket of the BM-13 system was 80 cm (2 ft 7 in) long, 13.2 cm (5.2 in) in diameter and weighed 42 kg (93 lb).

The weapon is less accurate than conventional artillery guns, but is extremely effective in saturation bombardment. A battery of four BM-13 launchers could fire a salvo in 7–10 seconds that delivered 4.35 tons of high explosives over a 400,000-square-metre (4,300,000 sq ft) impact zone,[2] making its power roughly equivalent to that of 72 conventional artillery guns. With an efficient crew, the launchers could redeploy to a new location immediately after firing, denying the enemy the opportunity for counterbattery fire. Katyusha batteries were often massed in very large numbers to create a shock effect on enemy forces. The weapon's disadvantage was the long time it took to reload a launcher, in contrast to conventional guns which could sustain a continuous low rate of fire.

Development

BM-13N Katyusha on a Lend-Lease Studebaker US6 2+1⁄2-ton 6×6 truck, at the Museum of the Great Patriotic War, Moscow (2006)

BM-31-12 on ZIS-12 at the Museum (Diorama) on Sapun Mountain, Sevastopol

Katyusha on a ZIL-157 truck

Reloading a BM-13

An M13 rocket for the Katyusha launcher on display in Musée de l'Armée.

Initial development of solid propellant rockets was carried out by Nikolai Tikhomirov at the Soviet Gas Dynamics Laboratory (GDL), with the first test-firing of a solid fuel rocket carried out in March 1928, which flew for about 1,300 meters[9] The rockets were used to assist take-off of aircraft and were later developed into the RS-82 and RS-132 (RS for Reaktivnyy Snaryad, 'rocket-powered shell')[10] in the early 1930s led by Georgy Langemak,[11] including firing rockets from aircraft and the ground. In June 1938, GDL's successor Reactive Scientific Research Institute (RNII) began building several prototype launchers for the modified 132 mm M-132 rockets.[12] Firing over the sides of ZIS-5 trucks proved unstable, and V.N. Galkovskiy proposed mounting the launch rails longitudinally. In August 1939, the result was the BM-13 (BM stands for боевая машина (translit. boyevaya mashina), 'combat vehicle' for M-13 rockets).[1]

The first large-scale testing of the rocket launchers took place at the end of 1938, when 233 rounds of various types were used. A salvo of rockets could completely straddle a target at a range of 5,500 metres (3.4 mi). But the artillery branch was not fond of the Katyusha, because it took up to 50 minutes to load and fire 24 rounds, while a conventional howitzer could fire 95 to 150 rounds in the same time. Testing with various rockets was conducted through 1940, and the BM-13-16 with launch rails for sixteen rockets was authorized for production. Only forty launchers were built before Germany invaded the Soviet Union in June 1941.[5]

After their success in the first month of the war, mass production was ordered and the development of other models proceeded. The Katyusha was inexpensive and could be manufactured in light industrial installations which did not have the heavy equipment to build conventional artillery gun barrels.[2] By the end of 1942, 3,237 Katyusha launchers of all types had been built, and by the end of the war total production reached about 10,000.[13]

The truck-mounted Katyushas were installed on ZIS-6 6×4 trucks, as well as the two-axle ZIS-5 and ZIS-5V. In 1941, a small number of BM-13 launchers were mounted on STZ-5 artillery tractors. A few were also tried on KV tank chassis as the KV-1K, but this was a needless waste of heavy armour. Starting in 1942, they were also mounted on various British, Canadian and U.S. Lend-Lease trucks, in which case they were sometimes referred to as BM-13S. The cross-country performance of the Studebaker US6 2½-ton 6×6 truck was so good that it became the GAU's standard mounting in 1943, designated BM-13N (normalizovanniy, 'standardized'), and more than 1,800 of this model were manufactured by the end of World War II.[14] After World War II, BM-13s were based on Soviet-built ZIS-151 trucks.

The 82 mm BM-8 was approved in August 1941, and deployed as the BM-8-36 on truck beds and BM-8-24 on T-40 and T-60 light tank chassis. Later these were also installed on GAZ-67 jeeps as the BM-8-8, and on the larger Studebaker trucks as the BM-8-48.[2] In 1942, the team of scientists Leonid Shvarts, Moisei Komissarchik and engineer Yakov Shor received the Stalin prize for the development of the BM-8-48.[15][16]

Based on the M-13, the M-30 rocket was developed in 1942. Its bulbous warhead required it to be fired from a grounded frame, called the M-30 (single frame, four round; later double frame, 8 round), instead of a launch rail mounted on a truck. In 1944 it became the basis for the BM-31-12 truck-mounted launcher.[2]

A battery of BM-13-16 launchers included four firing vehicles, two reload trucks and two technical support trucks, with each firing vehicle having a crew of six. Reloading was executed in 3–4 minutes, although the standard procedure was to switch to a new position some 10 km away due to the ease with which the battery could be identified by the enemy. Three batteries were combined into a division (company), and three divisions into a separate mine-firing regiment of rocket artillery.

Rocket variants

Rockets used in the above implementations were:[18]

Weapon name	Caliber (mm)	Range (max)	Warhead
M-8	82	5,900 m (6,500 yd)	0.64 kg (1.4 lb)
M-13	132	8,740 m (9,560 yd)	4.9 kg (11 lb)
M-13DD	132	11,800 m (12,900 yd)	4.9 kg (11 lb)
M-13UK	132	7,900 m (8,600 yd)	4.9 kg (11 lb)
M-20	132	5,050 m (5,520 yd)	18.4 kg (41 lb)
M-30	300	2,800 m (3,100 yd)	28.9 kg (64 lb)
M-31	300	4,325 m (4,730 yd)	28.9 kg (64 lb)
M-31UK	300	4,000 m (4,400 yd)	28.9 kg (64 lb)

The M-8 and M-13 rocket could also be fitted with smoke warheads, although this was not common.

The German 8 cm Raketen-Vielfachwerfer was based on the Katyusha

Russian forces use BM-27 Uragan rocket launchers during the Second Chechen War

The success and economy of multiple rocket launchers (MRL) have led them to continue to be developed. In the years following WWII, the BM-13 was replaced by the 140 mm BM-14 and the BM-31 was replaced by the 240 mm BM-24.[27] During the Cold War, the Soviet Union fielded several models of Katyusha-like MRL, notably the BM-21 Grad launchers somewhat inspired by the earlier weapon, and the larger BM-27 Uragan. Advances in artillery munitions have been applied to some Katyusha-type multiple launch rocket systems, including bomblet submunitions, remotely deployed land mines, and chemical warheads.

With the breakup of the Soviet Union, Russia inherited most of its military arsenal including its large complement of MRLs. In recent history, they have been used by the Russian Armed Forces during the First and Second Chechen Wars and by the Armenian and Azerbaijani Armed Forces during the First Nagorno-Karabakh War. The Georgian Defense Forces are reported to have used BM-21 Grad or similar rocket artillery in fighting in the 2008 South Ossetia war.[28]

Katyusha-like launchers were exported to Afghanistan, Angola, Czechoslovakia, Khmer Republic, Egypt, East Germany, Hungary, Iran, Iraq, Mongolia, North Korea, Poland, Syria, Yemen and Vietnam. They were also built in Czechoslovakia,[29] the People's Republic of China, North Korea, and Iran.

Proper Katyushas (BM-13s) also saw action in the Korean War, used by the Chinese People's Volunteer Army and Korean People's Army against the South Korean and United Nations forces.[30] Soviet BM-13s were known to have been imported to China before the Sino-Soviet split and were operational in the People's Liberation Army. The Viet Minh deployed them against the French Far East Expeditionary Corps during the Battle of Dien Bien Phu at the end of the First Indochina War.[31]

Israel captured BM-24 MRLs during the Six-Day War (1967), used them in two battalions during the Yom Kippur War (1973) and the 1982 Lebanon War, and later developed the MAR-240 launcher for the same rockets, based on a Sherman tank chassis.

The rockets were employed by the Tanzania People's Defence Force in the Uganda-Tanzania War. Tanzanian forces called them Baba Mtakatifu (Kiswahili for "Holy Father") while the Ugandans called them Saba Saba.[32]

During the 2006 Lebanon War, Hezbollah fired between 3,970 and 4,228 rockets, from light truck-mounts and single-rail man-portable launchers. About 95% of these were 122 mm (4.8 in) Syrian-manufactured M-21OF type artillery rockets which carried warheads up to 30 kg (66 lb) and had a range of 20 km, perhaps up to 30 km (19 mi).[33][34][35][36] Most rockets fired at Israel by Hamas from the Gaza Strip are of the simpler Qassam rocket type, but Hamas has also launched 122-mm Grad-type Katyusha rockets against several cities in Israel,[37] although they are not reported to have truck-mounted launchers. Although Katyusha originally referred to the mobile launcher, today the rockets are often referred to as Katyushas.

Some allege that the Central Intelligence Agency bought Katyushas from the Egyptian Armed Forces and supplied them to the Mujahideen (via Pakistan's ISI) during the Soviet–Afghan War.[38]

Katyusha-like MRLs were also allegedly used by the Rwandan Patriotic Front during its 1990 invasion of Rwanda, through the 1994 genocide. They were effective in battle, but translated into much anti-Tutsi sentiment in the local media.[39]

It was reported that BM-21 Grad launchers were used against the U.S. Army during the 2003 invasion of Iraq. They have also been used in the Afghanistan and Iraq insurgencies. In Iraq, according to Associated Press and Agence France-Presse reports, Katyusha-like rockets were fired at the Green Zone late March 2008.[40][41]

Katyusha rockets were reportedly used by both Gaddafi Loyalists and anti-Gaddafi forces during the Libyan Civil War.[42]

In February 2013, the Defence Ministry of Yemen reported seizing an Iranian ship, and that the ship's cargo included (among its other weapons) Katyusha rockets.[43]

On May 19, 2019, a Katyusha rocket was fired inside the Green Zone in Baghdad, Iraq, landing less than a mile from the US Embassy near the statue of the Unknown Soldier. No casualties were reported.[44]

On January 4, 2020, four Katyusha rockets were fired in the Baghdad area. According to two Iraqi Police sources and an official Iraqi Armed Forces statement, one Katyusha rocket landed in the Green Zone in Celebration Square near the U.S. Embassy and another landed in the nearby Jadriya neighborhood. Two other Katyusha rockets landed in Balad Air Base, which houses U.S. Armed Forces troops, according to two security sources.[45][46][47]

Participants in the creation of the Katyusha rocket launcher received official recognition only in 1991. By decree of the President of the USSR Mikhail Gorbachev dated June 21, 1991, I. T. Kleymenov, G. E. Langemak, V. N. Luzhin, B. S. Petropavlovsky, B. M. Slonimer and N. I. Tikhomirov were posthumously awarded title of Heroes of Socialist Labor for their work on the creation of the Katyusha.[48][49]

• Congreve rocket, British military weapon designed by Sir William Congreve in 1804
• Hwacha, Korean gunpowder-based flaming arrow launcher from the 1500s
• Land Mattress, employed by Allied forces in World War II
• List of rocket artillery
• Nebelwerfer, the most common barrage rocket series employed by the Wehrmacht in World War II
• Panzerwerfer, German rocket launcher mounted on a half-track
• Reactive Scientific Research Institute where the Katyusha rocket launcher was created
• T34 Calliope, rocket launcher mounted on M-4 Sherman tank chassis. Last vehicle-mounted highly-mobile multiple-rocket launcher by US land forces, before abandoning this concept till the latter's concept comeback in the mid-1980s.
• Wurfrahmen 40, another German rocket launcher mounted on a half-track

• Prenatt, Jamie and Hook, Adam (2016). Katyusha: Russian Multiple Rocket Launchers 1941–Present, Oxford: Osprey Publishing Ltd. ISBN 978 1 4728 1086 1

Look up Katyusha in Wiktionary, the free dictionary.

Wikimedia Commons has media related to Katyusha.

• Photos of various mounts of Katyushas
• "Creation and Development of Rocket Artillery in the First Phase of the War", translation of a 1976 article published by the USSR Defence Ministry (broken link, see archive)
• Photo of a Cuban BM-21 in Angola