Mk 153 Shoulder-Launched Multipurpose Assault Weapon | |
---|---|
Type | Multi-role (anti-fortification, anti-armor) rocket launcher |
Place of origin | United States |
Service history | |
In service | 1984–present |
Used by | See Operators |
Wars | Operation Just Cause Gulf War War in Afghanistan Iraq War Yemeni Civil War Russo-Ukrainian War |
Production history | |
Designer | McDonnell Douglas |
Manufacturer | Nammo Talley (formerly Talley Defense Systems) |
Unit cost | US$13,000 |
Variants | M141 Bunker Defeat Munition |
Specifications | |
Mass | 7.54 kg (16.6 lb) (empty) [1] 13.39 kg (29.5 lb) (loaded) [1] |
Length | 760 mm (30 in) (unloaded) [1] 1,371 mm (54.0 in) (loaded) [1] |
Crew | 2 (can be operated by one person, but at lower rate of fire) [1] |
Cartridge weight | 4.5 kg (9.9 lb) (HEAA) [1] 4.2 kg (9.3 lb) (HEDP) [1] |
Caliber | 83.5 mm (3.29 in) (bore diameter) 83.0 mm (3.27 in) (rocket diameter) |
Rate of fire | 3 rounds per minute (practical) [1] |
Muzzle velocity | 220 m/s (720 ft/s) [1] |
Effective firing range | 250 m (820 ft) (HEDP) [1] 500 m (1,600 ft) (HEAA) [1] |
Maximum firing range | 1,800 m (5,900 ft) [1] |
Feed system | Detachable single-rocket casing |
Sights | Iron sights (250 m; 820 ft) Mk 42 Day Sight (3.8× magnification telescopic sight) Night vision sight |
The Mk 153 Shoulder-Launched Multipurpose Assault Weapon (SMAW) is a smoothbore shoulder-fired rocket launcher. [2] It is a portable assault weapon (i.e., bunker buster) and has a secondary anti-armor ability. Developed from the B-300, it was introduced to United States Armed Forces in 1984. It has a maximum effective range of 500 metres (550 yd) against a tank-sized target.
It can be used to destroy bunkers and other fortifications during assault operations; it can also destroy other designated targets using the dual mode rocket, and main battle tanks using the high-explosive anti-tank rocket. Operations in Afghanistan and Iraq saw a thermobaric rocket added (described as a "Novel Explosive" (NE)), which can collapse a building. [3]
The SMAW system (launcher, ammunition and logistics support) was fielded in 1984 as a United States Marine Corps–unique system. The Mod 0 demonstrated several shortcomings, resulting in a series of modifications in the mid-2000s. These modifications included a re-sleeving process for bubbled launch tubes, rewriting/drafting operator and technical manuals, and a kit to reduce environmental intrusion into the trigger mechanism. This also includes an optical sight modification to allow the high-explosive anti-armor (HEAA) rocket to be used effectively against moving armor targets. The U.S. Armed Forces fielded boresight bracket kits which correct the loss of accurate boresight issues between the launch tube and spotting rifle. During Operation Desert Storm, 150 launchers and 5,000 rockets were deployed by the United States Army. Initially the Army showed interest in the system but ultimately returned the launchers and any unused rockets to the Marine Corps. Later, the U.S. Army developed the SMAW-D ("Disposable"), designated by the Army as the M141 Bunker Defeat Munition.
In 2002, the Corps began a program to develop a successor to the SMAW system, tentatively titled "Follow-On To SMAW". [4] The contract was awarded to Lockheed Martin and Israel Military Industries (IMI); [5] this resulted in the enhanced FGM-172 SRAW. In combat operations, it was ultimately used to augment, rather than replace, the SMAW system.
In 2008, a replacement program was again initiated and titled the SMAW II. [6] It was developed in tandem with a round capable of being fired from an enclosed area without ill effects on the environment and personnel. Its combined weight is 13.5 kilograms (29.7 lb)—5.3 kg (11.7 lb) for the launcher, 8.2 kg (18 lb) for the rocket. The contract was worth up to US$51.7 million [6]
This section needs to be updated.(June 2017) |
In 2012, Raytheon Missile Systems developed a SMAW II launcher named Serpent, and Nammo Talley developed new rounds for the Serpent. The Serpent is similar in many respects to the first SMAW launcher, except that it replaces the standard SMAW launcher's spotting gun with more sophisticated fire control electronics. The sighting unit on the launcher is enclosed in a unique protective cage, which is also a carry handle. The development reduced the over-all weight by four and a half pounds (2.0 kg) from the older SMAW launcher. The Serpent fires the same rounds as the standard SMAW and supports new and improved/enhanced rounds. [7] [8]
Compared to the Israel Military Industries' (IMI Systems) B-300 weapon that it was developed from, the SMAW has slower projectile velocities, it and its ammunition are both heavier, and it takes a second crew member to keep up with the B-300's rate-of-fire, but some of its projectile options have longer ranges than the B-300. The Mk 153 SMAW has an 83.5 millimetres (3.29 in) diameter tube and fires 83-millimetre (3.3 in) rockets. It is a man-portable weapon system consisting of the Mk 153 launcher, the Mk 3 Mod 0 Encased High-Explosive, Dual-Purpose (HEDP) rocket, the Mk 6 Mod 0 Encased High-Explosive, Anti-Armor (HEAA) Rocket, the Mk 7 Mod 0 Common Encased Practice Rocket, the Mk 80 Mod 0 Encased Novel Explosive (NE) rocket, and the Mk 217 Mod 0 spotting rifle cartridge.
The launcher consists of the launch tube, spotting rifle, electro-mechanical firing mechanism, mounting brackets, open battle sights and a mount for the Mk 42 Mod 0 day sight or AN/PVS-4 or AN/PVS-17B night sights. The launch tube is made of fiberglass-epoxy composite material with a gelcoat on the bore. The spotting rifle is mounted on the right side of the launch tube. It functions semi-automatically by primer actuation, meaning that when fired the primer sets back and unlocks the breech of the spotting rifle, ejecting the spent round. The firing mechanism mechanically fires the spotting rifle and uses a magnet to fire the rocket. The mounting brackets connect the components and provide the means for boresighting the weapon, while the encased rockets are loaded at the rear of the launcher. The spotting cartridges are stored in a magazine in the cap of the encased rocket.
The 9×51mm Mk 217 spotting round is ballistically matched to the rocket and serves to increase the gunner's first-round hit probability. Each round consists of a special 9 mm projectile which contains a tracer compound, crimped into a 7.62×51mm NATO casing with a .22 Hornet primer. [9] The system can be used in conjunction with the AN/PEQ-2 aiming light in place of the spotting rifle.
As with all of these types of recoilless rocket weapons, the backblast that is created when it is fired is a primary safety concern. When the rocket is fired, the rocket propellant is expended entirely within the rocket encasement. This is the cause of the extremely loud and violent backblast. This backblast extends in a 90-meter, 60° cone to the rear of the weapon. The backblast is lethal out to 30 metres (98 ft) and still extremely dangerous to 90 metres (300 ft). [10] An assistant gunner is often used during employment of the weapon system to monitor the backblast area and clear it of fellow troops, or to notify the gunner of obstructions that could reflect the force of the backblast back at the gun team. The gunner is only cleared to launch a rocket when he hears the command "Backblast area secure" from his assistant gunner. Rounds are under development that would enable a user to fire the rocket from an enclosed building without risk of injury. [11]
The Mk 153 Mod 2 is an enhanced variant, featuring an electronic modular ballistic sight (MBS) in place of the 9 mm spotting system. The MBS has a laser rangefinder and thermal weapon sight to provide a firing solution using a displaced reticle, where crosshairs are adjusted for distance and environmental factors; it is lighter, more reliable, and can be detached from the launcher. While the Mod 0 weighs 7.5 kg (16.5 lb), the Mod 2 weighs 5.9 kg (13 lb) with the MBS attached, and 3.9 kg (8.5 lb) with the MBS detached. Other improvements include increased pad size on the forward grip and foldable backup iron sights. [12] The Mod 2 systems were expected to replace the existing inventory by October 2020. [13] [14] [15]
The Mk 4 Mod 0 Encased High-Explosive, Anti-Armor, Practice Rocket is used in training. The warhead consists of a blue plastic projectile attached to a rocket motor similar to the HEDP rocket. The rocket contains no explosive. It does not damage a target except by kinetic energy. On impact, the plastic warhead ruptures, dispensing an inert white spotting powder.
The Mk 3 Mod 0 Encased High-Explosive, Dual Purpose (HEDP) rocket is effective against bunkers, masonry and concrete walls and light armor. Initiated by a crush switch in its nose, the HEDP rocket is able to distinguish between hard and soft targets resulting in greater penetration into soft targets for increased damage potential. The HEDP round can penetrate 20 centimetres (7.9 in) of concrete, 30 centimetres (12 in) of brick, or up to 210 centimetres (6.9 ft) of wood-reinforced sandbags.
The Mk 6 Mod 0 Encased High-Explosive, Anti-Armor (HEAA) rocket is effective against current tanks without added armor, and uses a standoff rod on the detonator, allowing the explosive force to be focused on a small point and for maximum damage against targets. The HEAA round can penetrate up to the equivalent of 600 mm of rolled homogeneous steel.
The unit cost of the Mk.6 HEAT round is 25 000$. [16]
The Mk 80 Mod 0 Encased Novel Explosive (SMAW-NE) rocket is effective against caves and bunkers. The SMAW-NE has a 4 lb (1.8 kg) charge of PBXIH-135, [17] an enhanced-blast warhead. The Indian Head Naval Surface Warfare Center teamed with Marine Corps Systems Command and Talley Defense Systems to respond to an urgent U.S. Marine Corps need for a shoulder-launched enhanced-blast warhead in 2003. It was used in combat during both the First and Second offensives in Fallujah, in 2004.
A rocket-propelled grenade (RPG) is a shoulder-fired missile weapon that launches rockets equipped with an explosive warhead. Most RPGs can be carried by an individual soldier, and are frequently used as anti-tank weapons. These warheads are affixed to a rocket motor which propels the RPG towards the target and they are stabilized in flight with fins. Some types of RPG are reloadable with new rocket-propelled grenades, while others are single-use. RPGs are generally loaded from the front.
Bazooka is the common name for a man-portable recoilless anti-tank rocket launcher weapon, widely deployed by the United States Army, especially during World War II. Also referred to as the "stovepipe", the innovative bazooka was among the first generation of rocket-propelled anti-tank weapons used in infantry combat. Featuring a solid-propellant rocket for propulsion, it allowed for high-explosive anti-tank (HEAT) shaped charge warheads to be delivered against armored vehicles, machine gun nests, and fortified bunkers at ranges beyond that of a standard thrown grenade or mine. The universally applied nickname arose from the M1 variant's vague resemblance to the musical instrument called a bazooka invented and popularized by 1930s American comedian Bob Burns.
A grenade launcher is a weapon that fires a specially designed, large-caliber projectile, often with an explosive, smoke, or gas warhead. Today, the term generally refers to a class of dedicated firearms firing unitary grenade cartridges. The most common type are man-portable, shoulder-fired weapons issued to individuals, although larger crew-served launchers are issued at higher levels of organization by military forces.
Shoulder-fired missile, shoulder-launched missile or man-portable missile, among other variants, are common slang-terms to describe high-caliber shoulder-mounted weapons systems – that is: weapons firing large heavy projectiles ("missiles"), typically using the backblast principle, which are small enough to be carried by a single person and fired while held on one's shoulder. The word "missile" in this context is used in its original broad sense of a heavy projectile, and encompasses all shells and rockets, guided or unguided. A more formal variant is simply shoulder-fired weapons system and the like.
An anti-materiel rifle (AMR) is a rifle designed for use against military equipment, structures, and other hardware (materiel) targets. Anti-materiel rifles are chambered in significantly larger calibers than conventional rifles and are employed to eliminate equipment such as engines and unarmored or lightly armored targets. While modern armored vehicles are resistant to anti-materiel rifles, the extended range and penetration still has many modern applications. While not intended for use against human targets, the bullet weight and velocity of anti-materiel rifles gives them exceptional long-range capability even when compared with designated sniper rifles. Anti-materiel rifles are made in both bolt-action as well as semi-automatic designs.
The Carl Gustaf 8.4 cm recoilless rifle is a Swedish developed 84 mm (3.3 in) caliber man-portable shoulder-fired recoilless rifle, initially developed by the Royal Swedish Army Materiel Administration during the second half of the 1940s as a close-range anti-tank and support weapon for infantry, which has seen great export success around the globe and is today a popular multi-purpose support weapon in use by many nations. The Carl Gustaf 84 mm recoilless rifle is a lightweight, low-cost weapon that uses a wide range of ammunition, which makes it extremely flexible and suitable for a wide variety of roles.
The Mk 19 grenade launcher is an American 40 mm belt-fed automatic grenade launcher that was first developed during the Vietnam War.
The M72 LAW is a portable one-shot 66 mm (2.6 in) unguided anti-tank weapon. The solid rocket propulsion unit was developed in the newly-formed Rohm and Haas research laboratory at Redstone Arsenal in 1959, and the full system was designed by Paul V. Choate, Charles B. Weeks, Frank A. Spinale, et al. at the Hesse-Eastern Division of Norris Thermador. American production of the weapon began by Hesse-Eastern in 1963, and was terminated by 1983; currently it is produced by Nammo Raufoss AS in Norway and their subsidiary, Nammo Talley, Inc. in Arizona.
The M47 Dragon, known as the FGM-77 during development, is an American shoulder-fired, man-portable anti-tank guided missile system. It was phased out of U.S. military service in 2001, in favor of the newer FGM-148 Javelin system.
The M67 recoilless rifle is a 90 mm anti-tank recoilless rifle made in the United States and later in South Korea. It could also be employed in an anti-personnel role with the use of the M590 antipersonnel round. It was designed to be fired primarily from the ground using the bipod and monopod, but could also be fired from the shoulder using the folded bipod as a shoulder rest and the monopod as a front grip. The weapon was air-cooled and breech-loaded, and fired fixed ammunition. It is a direct fire weapon employing stadia lines to allow simple range finding, based on a typical tank target bridging the lines once in range.
The Panzerfaust 3 is a modern semi-disposable recoilless anti-tank weapon, which was developed between 1978 and 1985 and first entered service with the Bundeswehr in 1987. It was first ordered in 1973 to provide West German infantry with an effective weapon against contemporary Soviet armor, thereby replacing West Germany's aging PzF 44 Light Lanze launchers and the heavy Carl Gustaf 84 mm anti-tank recoilless rifle manufactured in Sweden.
The FGM-172 SRAW, also known as the Predator SRAW, was a lightweight, close range missile system produced by Lockheed Martin, developed by Lockheed Martin and Israel Military Industries. It is designed to complement the FGM-148 Javelin anti-tank missile. The Predator had a longer range and was more powerful than the AT4 that it was designed to replace, but had a shorter range than the Javelin.
The Type 98 (PF-98) is a 120mm unguided anti-tank rocket system developed by Norinco for the People's Liberation Army as a successor to the Type 65 and Type 78 recoilless guns. It is also known by its nickname, "Queen Bee". It can be equipped with a firing control system which predicts the future aiming point based on calculations before the rocket fires.
The QLZ-87 35 mm automatic grenade launcher (AGL) is an air-cooled, gas operated fully automatic weapon and is crew transportable (12~20 kg) with limited amounts of ammunition. Unusual for handheld grenade launchers, the QLZ-87 fires 35x32 mmSR high-velocity grenades, which provides longer range and flatter firing trajectory.
The B-300 is a reusable man-portable anti-tank weapon system developed by Israel Military Industries in the late 1970s for use by the Israel Defense Forces. The B-300 can be carried and operated by a single operator and is effective to approximately 400 meters (1,312 ft). Pre-packaged munitions and simple operating mechanisms make the weapon quite versatile, permitting use by airborne, motorized, and ground troops alike. When defence publications first heard reports of the B-300 in the early 1980s, various reports stated in error that it was an Israeli improved and manufactured version of the Russian RPG-7.
The M141 Bunker Defeat Munition (BDM) is a disposable single-shot, shoulder-fired rocket launcher designed to defeat hardened structures. It is a modification of the United States Marine Corps Mk 153 Shoulder-Launched Multipurpose Assault Weapon (SMAW) and is also called the SMAW-D. It was designed to fill the void in the United States Army inventory of a "bunker buster" weapon.
List of abbreviations, acronyms and initials related to military subjects such as modern armour, artillery, infantry, and weapons, along with their definitions.
The AT4 is a Swedish 84 mm (3.31 in) unguided, man-portable, disposable, shoulder-fired recoilless anti-tank weapon manufactured by Saab Bofors Dynamics. The AT4 is not a rocket launcher strictly speaking, because the explosive warhead is not propelled by a rocket motor. Rather, it is a smooth-bore recoilless gun. Saab has had considerable sales success with the AT4, making it one of the most common light anti-tank weapons in the world. The M136 AT4 is a variant used by the United States Army.
{{cite web}}
: CS1 maint: unfit URL (link){{cite web}}
: CS1 maint: unfit URL (link)