Rocket artillery
Encyclopedia
Rocket artillery is a type of artillery
Artillery
Originally applied to any group of infantry primarily armed with projectile weapons, artillery has over time become limited in meaning to refer only to those engines of war that operate by projection of munitions far beyond the range of effect of personal weapons...

 equipped with rocket
Rocket (weapon)
A rocket is a self propelled, unguided weapon system powered by a rocket motor.- Categorisation :In military parlance, powered munitions are broadly categorised as follows:* A powered, unguided munition is known as a rocket....

 launchers instead of conventional guns or mortars
Mortar (weapon)
A mortar is an indirect fire weapon that fires explosive projectiles known as bombs at low velocities, short ranges, and high-arcing ballistic trajectories. It is typically muzzle-loading and has a barrel length less than 15 times its caliber....

.

Types of rocket artillery pieces include multiple rocket launcher
Multiple rocket launcher
A multiple rocket launcher is a type of unguided rocket artillery system. Like other rocket artillery, multiple rocket launchers are less accurate and have a much lower rate of fire than batteries of traditional artillery guns...

s.

History

The use of rocket
Rocket
A rocket is a missile, spacecraft, aircraft or other vehicle which obtains thrust from a rocket engine. In all rockets, the exhaust is formed entirely from propellants carried within the rocket before use. Rocket engines work by action and reaction...

s as some form of artillery dates back to medieval China where devices such as fire arrows were used (albeit mostly as a psychological weapon). Fire arrows were also used in multiple launch systems and transported via carts. Devices such as the Korean Hwacha
Hwacha
Hwacha or Hwach'a is the world's first multiple rocket launcher developed and used in Joseon Korea. It had the ability to fire up to 100 steel-tipped rockets, or 200 Singijeon flaming arrow projectiles from a range of 500 yards in multiple salvos...

 were able to fire hundreds of fire arrows simultaneously. The use of medieval rocket artillery was picked up by the invading Mongols and spread to the Ottoman Turks
Ottoman Turks
The Ottoman Turks were the Turkish-speaking population of the Ottoman Empire who formed the base of the state's military and ruling classes. Reliable information about the early history of Ottoman Turks is scarce, but they take their Turkish name, Osmanlı , from the house of Osman I The Ottoman...

 who in turn used them on the European battlefield.

Metal-cylinder rocket artillery

The earliest successful utilization of Rocket artillery is associated with Tipu Sultan
Tipu Sultan
Tipu Sultan , also known as the Tiger of Mysore, was the de facto ruler of the Kingdom of Mysore. He was the son of Hyder Ali, at that time an officer in the Mysorean army, and his second wife, Fatima or Fakhr-un-Nissa...

 of India
India
India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

. Tipu Sultan's father Hyder Ali successfully established the powerful Sultanate of Mysore
Kingdom of Mysore
The Kingdom of Mysore was a kingdom of southern India, traditionally believed to have been founded in 1399 in the vicinity of the modern city of Mysore. The kingdom, which was ruled by the Wodeyar family, initially served as a vassal state of the Vijayanagara Empire...

 and introduced the first iron
Iron
Iron is a chemical element with the symbol Fe and atomic number 26. It is a metal in the first transition series. It is the most common element forming the planet Earth as a whole, forming much of Earth's outer and inner core. It is the fourth most common element in the Earth's crust...

-cased metal
Metal
A metal , is an element, compound, or alloy that is a good conductor of both electricity and heat. Metals are usually malleable and shiny, that is they reflect most of incident light...

-cylinder
Cylinder (firearms)
In firearms terminology, the Cylinder refers to the cylindrical, rotating part of a revolver containing multiple cartridge chambers. The cylinder revolves around a central axis in the revolver to bring each individual chamber into alignment with the barrel for firing...

 Rocket.

Hyder Ali
Hyder Ali
Hyder Ali was the de facto ruler of the Kingdom of Mysore in southern India. Born Hyder Naik, he distinguished himself militarily, eventually drawing the attention of Mysore's rulers...

's son Tipu Sultan
Tipu Sultan
Tipu Sultan , also known as the Tiger of Mysore, was the de facto ruler of the Kingdom of Mysore. He was the son of Hyder Ali, at that time an officer in the Mysorean army, and his second wife, Fatima or Fakhr-un-Nissa...

 successfully used these metal-cylinder rocket
Rocket
A rocket is a missile, spacecraft, aircraft or other vehicle which obtains thrust from a rocket engine. In all rockets, the exhaust is formed entirely from propellants carried within the rocket before use. Rocket engines work by action and reaction...

s against the larger forces of the British East India Company
British East India Company
The East India Company was an early English joint-stock company that was formed initially for pursuing trade with the East Indies, but that ended up trading mainly with the Indian subcontinent and China...

 during the Anglo-Mysore Wars
Anglo-Mysore Wars
The Anglo-Mysore Wars were a series of wars fought in India over the last three decades of the 18th century between the Kingdom of Mysore and the British East India Company, represented chiefly by the Madras Presidency...

 especially during the Battle of Pollilur
Battle of Pollilur
The Battle of Pollilur, also known as the Battle of Polilore or Battle of Perambakam, took place on 10 September 1780 at Pollilur near the city of Kanchipuram in present-day Tamil Nadu state, India as part of the Second Anglo-Mysore War...

. The Mysorean rockets
Mysorean rockets
Mysorean rockets were the first iron-cased rockets that were successfully deployed for military use. Hyder Ali, the 18th century ruler of Mysore, and his son and successor, Tipu Sultan used them effectively against the British East India Company...

 of this period were much more advanced than what the British had seen, chiefly because of the use of iron tubes that tightly packed the gunpowder
Gunpowder
Gunpowder, also known since in the late 19th century as black powder, was the first chemical explosive and the only one known until the mid 1800s. It is a mixture of sulfur, charcoal, and potassium nitrate - with the sulfur and charcoal acting as fuels, while the saltpeter works as an oxidizer...

 propellant; this enabled higher thrust and longer range for the missile (up to 2 km range).

According to Stephen Oliver Fought and John F. Guilmartin, Jr. in Encyclopædia Britannica
Encyclopædia Britannica
The Encyclopædia Britannica , published by Encyclopædia Britannica, Inc., is a general knowledge English-language encyclopaedia that is available in print, as a DVD, and on the Internet. It is written and continuously updated by about 100 full-time editors and more than 4,000 expert...

(2008): "Hyder Ali
Hyder Ali
Hyder Ali was the de facto ruler of the Kingdom of Mysore in southern India. Born Hyder Naik, he distinguished himself militarily, eventually drawing the attention of Mysore's rulers...

, prince of Mysore, developed war rockets with an important change: the use of metal cylinders to contain the combustion
Combustion
Combustion or burning is the sequence of exothermic chemical reactions between a fuel and an oxidant accompanied by the production of heat and conversion of chemical species. The release of heat can result in the production of light in the form of either glowing or a flame...

 powder. Although the hammered soft iron he used was crude, the bursting strength of the container of black powder was much higher than the earlier paper construction. Thus a greater internal pressure was possible, with a resultant greater thrust of the propulsive jet. The rocket body was lashed with leather thongs to a long bamboo stick. Range was perhaps up to three-quarters of a mile (more than a kilometre). Although individually these rockets were not accurate, dispersion error became less important when large numbers were fired rapidly in mass attacks. They were particularly effective against cavalry and were hurled into the air, after lighting, or skimmed along the hard dry ground. Hyder Ali's son, Tippu Sultan, continued to develop and expand the use of rocket weapons, reportedly increasing the number of rocket troops from 1,200 to a corps of 5,000. In battles at Seringapatam in 1792 and 1799 these rockets were used with considerable effect against the British."

After Tipu's eventual defeat in the Fourth Anglo-Mysore War
Fourth Anglo-Mysore War
The Fourth Anglo-Mysore War was a war in South India between the Sultanate of Mysore and the British East India Company under the Earl of Mornington....

, the Mysore iron rockets were captured by the British. These rockets were influential in British rocket development, inspiring the Congreve rocket
Congreve rocket
The Congreve Rocket was a British military weapon designed and developed by Sir William Congreve in 1804.The rocket was developed by the British Royal Arsenal following the experiences of the Second, Third and Fourth Mysore Wars. The wars fought between the British East India Company and the...

, which were soon put into use in the Napoleonic Wars
Napoleonic Wars
The Napoleonic Wars were a series of wars declared against Napoleon's French Empire by opposing coalitions that ran from 1803 to 1815. As a continuation of the wars sparked by the French Revolution of 1789, they revolutionised European armies and played out on an unprecedented scale, mainly due to...

, including at the Battle of Waterloo
Battle of Waterloo
The Battle of Waterloo was fought on Sunday 18 June 1815 near Waterloo in present-day Belgium, then part of the United Kingdom of the Netherlands...

. Ironically, the technology of metal-cylinder missiles developed by Tipu Sultan
Tipu Sultan
Tipu Sultan , also known as the Tiger of Mysore, was the de facto ruler of the Kingdom of Mysore. He was the son of Hyder Ali, at that time an officer in the Mysorean army, and his second wife, Fatima or Fakhr-un-Nissa...

 contributed to the defeat of his ally Napoleon at Waterloo.

World War II

Modern rocket artillery was first employed during World War II
World War II
World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

, in the form of the German Nebelwerfer
Nebelwerfer
The Nebelwerfer was a World War II German series of weapons originally designed to deliver chemical weapons. They were initially developed by and assigned to the Wehrmacht's so-called Chemical Troops ...

 and Soviet Katyusha-series. The Soviet Katyushas, nicknamed by German troops Stalin Organs because of their visual resemblance to a church musical organ and alluding to the sound of the weapon's rockets, were mounted on trucks or light tanks, while the early German Nebelwerfer were mounted on a small wheeled carriage which was light enough to be moved by several men and could easily be deployed nearly anywhere, while also being towed by most vehicles. The Germans also had self-propelled rocket artillery in the form of the Panzerwerfer
Panzerwerfer
The German Panzerwerfer is one of two different types of half-tracked multiple rocket launchers employed by Nazi Germany during the Second World War...

 and Wurfrahmen 40
Wurfrahmen 40
The Wurfrahmen 40 was a German World War II multiple rocket launcher. It combined a vehicle such as the SdKfz 251 halftrack or captured ex-French Renault UE Chenillette with rocket artillery to form a more mobile and slightly more protected artillery piece than the towed Nebelwerfer...

 which equipped half-track
Half-track
A half-track is a civilian or military vehicle with regular wheels on the front for steering, and caterpillar tracks on the back to propel the vehicle and carry most of the load. The purpose of this combination is to produce a vehicle with the cross-country capabilities of a tank and the handling...

 armoured fighting vehicle
Armoured fighting vehicle
An armoured fighting vehicle is a combat vehicle, protected by strong armour and armed with weapons. AFVs can be wheeled or tracked....

s. An oddity in the subject of rocket artillery during this time was the German "Sturmtiger
Sturmtiger
Sturmtiger is the common name of a World War II German assault gun built on the Tiger I chassis and armed with a large naval rocket launcher. The official German designation was Sturmmörserwagen 606/4 mit 38 cm RW 61. Its primary task was to provide heavy fire support for infantry units...

", a vehicle based on the Tiger I
Tiger I
Tiger I is the common name of a German heavy tank developed in 1942 and used in World War II. The final official German designation was Panzerkampfwagen Tiger Ausf. E, often shortened to Tiger. It was an answer to the unexpectedly formidable Soviet armour encountered in the initial months of...

 heavy tank chassis that was armed with a 380 mm rocket mortar
Mortar (weapon)
A mortar is an indirect fire weapon that fires explosive projectiles known as bombs at low velocities, short ranges, and high-arcing ballistic trajectories. It is typically muzzle-loading and has a barrel length less than 15 times its caliber....

.
The Western Allies of World War II employed little rocket artillery. During later periods of the war, British and Canadian troops used the Land Mattress
Land Mattress
Mattress was the term applied to ground-based Allied multiple rocket launchers during World War II. Compared with the German and Soviet forays into this area the Allies developed and deployed these weapons late in the war...

, a towed rocket launcher. The United States Army built and deployed a small number of T34 Calliope
T34 Calliope
The Rocket Launcher T34 was a tank-mounted multiple rocket launcher used by the United States Army during World War II. The launcher was placed atop the Medium Tank M4, and fired a barrage of 4.5 in rockets from 60 launch tubes. It was developed in 1943; small numbers were produced and were...

 rocket artillery tanks (converted from M4 Sherman medium tanks) in France and Italy. In 1945, the British Army also fitted some M4 Shermans with two 60 lb RP3 rocket
RP-3
The RP-3 , was a British rocket used in the Second World War. Though primarily an air-to-ground weapon, it saw limited use in other roles. Its 60 lb warhead gave rise to the alternative name of the "60 lb rocket"; the 25 lb solid-shot armour piercing variant was referred to as the "25 lb rocket"...

s, the same as used on ground attack aircraft and known as Tulip.

In the Pacific, however, the US Navy made heavy use of rocket artillery, adding to the already intense bombardment by the guns of heavy warships to soften up Japanese-held islands before the US Marines would land. On Iwo Jima
Battle of Iwo Jima
The Battle of Iwo Jima , or Operation Detachment, was a major battle in which the United States fought for and captured the island of Iwo Jima from the Empire of Japan. The U.S...

, the Marines made use of rocket artillery trucks in a similar fashion as the Soviet Katyusha, but on a smaller scale.

Post-World War II

Israel
Israel
The State of Israel is a parliamentary republic located in the Middle East, along the eastern shore of the Mediterranean Sea...

 fitted some of their Sherman tanks
Postwar Sherman tanks
Sherman tanks saw extensive use around the world after World War II. This article catalogues foreign post–World War II use and conversions of Sherman tanks and variants based on the Sherman chassis.-US foreign aid variants:...

 with different rocket artillery. An unconventional Sherman conversion was the turretless Kilshon ("Trident") that launched a AGM-45 Shrike
AGM-45 Shrike
AGM-45 Shrike is an American anti-radiation missile designed to home in on hostile antiaircraft radars. The Shrike was developed by the Naval Weapons Center at China Lake in 1963 by mating a seeker head to the rocket body of an AIM-7 Sparrow. It was phased out by U.S...

 anti-radiation missile
Anti-radiation missile
An anti-radiation missile is a missile which is designed to detect and home on an enemy radio emission source. Typically these are designed for use against an enemy radar, although jammers and even radios used for communication can also be targeted in this manner.- Air-to-Ground :Most ARM designs...

.

The Soviet Union continued its development of the Katyusha during the Cold War
Cold War
The Cold War was the continuing state from roughly 1946 to 1991 of political conflict, military tension, proxy wars, and economic competition between the Communist World—primarily the Soviet Union and its satellite states and allies—and the powers of the Western world, primarily the United States...

, and also exported them widely.

Modern rocket artillery such as the US M270 Multiple Launch Rocket System
M270 Multiple Launch Rocket System
The M270 Multiple Launch Rocket System is an armored, self-propelled, multiple rocket launcher; a type of rocket artillery.Since the first M270s were delivered to the U.S. Army in 1983, the MLRS has been adopted by several NATO countries. Some 1,300 M270 systems have been manufactured in the...

 is highly mobile and are used in similar fashion to other self-propelled artillery
Self-propelled artillery
Self-propelled artillery vehicles are combat vehicles armed with artillery. Within the term are covered self-propelled guns and rocket artillery...

. Global Positioning and Inertial Navigation terminal guidance systems have been introduced.

Rocket artillery vs Gun artillery

  • Rockets produce no recoil, while conventional gun artillery systems produce significant recoil. Unless firing within a very small arc with the possibility of wrecking a self propelled artillery system's vehicle suspension, gun artillery must usually be braced against recoil. In this state they are immobile, and can not change position easily. Rocket artillery is much more mobile and can change position easily. This "shoot-and-scoot
    Shoot-and-scoot
    The term shoot and scoot refers to an artillery tactic of firing at a target and then immediately moving away from the location where the shots were fired. The reason for this is to avoid counter-battery fire - fired by enemy artillery or delivered by attack aircraft and helicopters, in order to...

    " ability makes the platform difficult to target. A rocket artillery piece could, conceivably, fire on the move. Rocket systems produce a significant amount of backblast
    Backblast area
    The backblast area is a cone-shaped area behind a rocket launcher, rocket-assisted takeoff unit or recoilless rifle, where hot gases are expelled when the rocket or rifle is discharged. The backblast area is dangerous to ground personnel, who may be burned by the gases or exposed to overpressure...

    , however, which imposes its own restrictions. Launchers may be sighted by the firing arcs of the rockets, and their fire can damage themselves or neighbouring vehicles.

  • Rocket artillery cannot usually match the accuracy and sustained rate of fire of conventional gun artillery. They may be capable of very destructive strikes by delivering a large mass of explosives simultaneously, thus increasing the shock effect and giving the target less time to take cover. Modern computer-controlled conventional artillery have recently begun to acquire the possibility to do something similar through MRSI but it is an open question if MRSI is really practical in a combat situation. On the other hand precision-guided
    Precision-guided munition
    A precision-guided munition is a guided munition intended to precisely hit a specific target, and to minimize damage to things other than the target....

     rocket artillery demonstrates extreme accuracy, comparable with the best guided gun artillery systems.

  • Rocket artillery typically has a very large fire signature, leaving a clear smoke-trail showing exactly where the barrage came from. Since the barrage does not take much time, however, the rocket artillery can move away quickly.

  • Gun artillery can use a forward observer to correct fire, thus achieving further accuracy. This is usually not practical with rocket artillery.

  • Gun artillery shells are typically cheaper and less bulky than rockets, so they can deliver a larger amount of explosive at the enemy per weight of ammunition or per money spent.

  • While gun artillery shells are smaller than rockets, the gun itself must be very large to match the range of rockets. Therefore rockets typically have longer range while the rocket launchers remain small enough to mount on mobile vehicles. Extremely large guns like the Paris Gun
    Paris Gun
    The Paris Gun was a German long-range siege gun used to bombard Paris during World War I. It was in service from March-August 1918. When it was first employed, Parisians believed they'd been bombed by a new type of high-altitude zeppelin, as neither the sound of an airplane nor a gun could be heard...

     have been rendered obsolete by long range missiles.

  • If the artillery barrage was intended as a preparation for an attack, and it usually is, a short but intense barrage will give the enemy less time to prepare by, for instance, dispersing.

  • The higher accuracy of gun artillery means that it can be used to attack an enemy close to a friendly force. This combined with the higher capacity for sustained fire makes cannon artillery more suitable than rocket artillery for defensive fire. It is also the only practicable system for counter-battery fire
    Counter-battery fire
    Counter-battery fire is a type of mission assigned to military artillery forces, which are given the task of locating and firing upon enemy artillery.-Background:...

    .

See also

  • List of artillery rockets
  • Multiple rocket launcher
    Multiple rocket launcher
    A multiple rocket launcher is a type of unguided rocket artillery system. Like other rocket artillery, multiple rocket launchers are less accurate and have a much lower rate of fire than batteries of traditional artillery guns...

  • Tactical ballistic missile
    Tactical ballistic missile
    A tactical ballistic missile is a ballistic missile designed for short-range battlefield use. Typically, range is less than . Tactical ballistic missiles are usually mobile to ensure survivability and quick deployment, as well as carrying a variety of warheads to target enemy facilities, assembly...

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