SIGMA 155
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SIGMA 155
The SIGMA 155 is a 155mm self-propelled howitzer manufactured by the Israeli defense company Elbit Systems. It is slated to replace the M109 howitzer as the principal artillery system of the Israel Defense Forces. The variant designed for Israeli use is the SIGMA 155 Ro'em, while an export variant is also planned. The SIGMA 155 consists of a 155mm L52 cannon mounted on an Oshkosh 10x10 LVSR truck with a modified chassis, including an armored cabin to protect the crew. The turret is remotely controlled, and the selection of ammunition rounds, loading, and gun laying Gun laying is the process of aiming an artillery piece or turret, such as a gun, howitzer, or mortar, on land, at sea, or in air, against surface or aerial targets. It may be laying for either direct fire, where the gun is aimed directly at a ... functions are fully automated. The crew can conduct all firing operations from inside the cabin. The system is capable of firing eight rounds per minute, and can fire ...
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Elbit Systems
Elbit Systems Ltd. is an Israel-based international military technology company and defense contractor. Founded in 1966 by Elron, Elbit Systems is the primary provider of the Israeli military's land-based equipment and unmanned aerial vehicles. It is an important company within the defense industry of Israel. Elbit Systems also has subsidiary factories around the world, and sells its products to various countries' militaries. At its subsidiary factories in the United Kingdom and the United States, the company has faced protests for its support of the Israeli military in the ongoing Israeli–Palestinian conflict. The company has also been divested from by international investment firms due to its involvement in the conflict. In 2022, Elbit Systems reported having 18,407 employees, with most of them based in Israel. Elbit Systems' shares are traded on the Tel Aviv and Nasdaq stock exchanges. History Elbit Systems was founded in 1966 by Elron Electronic Industries ...
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Self-propelled Howitzer
Self-propelled artillery (also called locomotive artillery) is artillery equipped with its own propulsion system to move toward its firing position. Within the terminology are the self-propelled gun, self-propelled howitzer, self-propelled mortar, and self-propelled rocket artillery. They are high-mobility vehicles, usually based on continuous tracks carrying either a large field gun, howitzer, mortar, or some form of rocket/missile launcher. They are usually used for long-range indirect bombardment support on the battlefield. In the past, self-propelled artillery has included direct-fire vehicles, such as assault guns and tank destroyers, which were typically well-armoured vehicles often based upon the chassis of a tank. In lieu of the standard tank's general-purpose main gun that fired both high-explosive and anti-tank ammunition, direct-fire vehicles had specialized roles, with assault guns providing close fire-support for infantry and tank destroyers mounting an anti-t ...
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155 Mm
The 155 mm calibre is widely used for artillery guns. Land warfare Historic calibres France - 1874 The caliber originated in France after the Franco-Prussian War (1870–1871). A French artillery committee met on 2 February 1874 to discuss new models for French fortress and siege artillery, among which there was a weapon in the calibre range. After several meetings, on 16 April 1874 the committee settled on the calibre, and led to the De Bange 155 mm cannon. NATO standard Among the existing and the former 155 mm artillery shells, there is one that has been standardised by NATO under both the AOP-29 part 1 (in reference to STANAG 4425), and under the (Joint Ballistics Memorandum of Understanding). This standard defines a standard 155mm projectile with a 23 litre combustion chamber volume. NATO is now pushing from standardised artillery shell to sharable ammunition. The standard described above enables the use of NATO shells in all NATO guns. But they still need ...
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Self-propelled Artillery
Self-propelled artillery (also called locomotive artillery) is artillery equipped with its own propulsion system to move toward its firing position. Within the terminology are the self-propelled gun, self-propelled howitzer, self-propelled mortar, and self-propelled rocket artillery. They are high-mobility vehicles, usually based on continuous tracks carrying either a large field gun, howitzer, mortar (weapon), mortar, or some form of rocket (weapon), rocket/missile launcher. They are usually used for long-range indirect-fire, indirect bombardment support on the battlefield. In the past, self-propelled artillery has included direct-fire vehicles, such as assault guns and tank destroyers, which were typically well-armoured vehicles often based upon the chassis of a tank. In lieu of the standard tank's general-purpose tank gun, main gun that fired both high-explosive and anti-tank ammunition, direct-fire vehicles had specialized roles, with assault guns providing close fire-supp ...
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M109 Howitzer
The M109 is an American 155 mm turreted self-propelled howitzer, first introduced in the early 1960s to replace the M44 and M52. It has been upgraded a number of times, most recently to the M109A7. The M109 family is the most common Western indirect-fire support weapon of maneuver brigades of armored and mechanized infantry divisions. It has a crew of four: the section chief/commander, the driver, the gunner, and the ammunition handler/loader. The British Army replaced its M109s with the AS-90. Several European armed forces have or are currently replacing older M109s with the German PzH 2000. Upgrades to the M109 were introduced by the U.S. (see variants) and by Switzerland (KAWEST). With the cancellation of the U.S. Crusader, non-line-of-sight cannon and M1299 the M109A6 ("Paladin") will likely remain the principal self-propelled howitzer for the U.S. until a replacement enters service. Operational history The M109 was the medium variant of a U.S. program to adopt ...
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Israel Defense Forces
The Israel Defense Forces (IDF; , ), alternatively referred to by the Hebrew-language acronym (), is the national military of the State of Israel. It consists of three service branches: the Israeli Ground Forces, the Israeli Air Force, and the Israeli Navy. It is the sole military wing of the Israeli security forces, Israeli security apparatus. The IDF is headed by the Chief of the General Staff (Israel), chief of the general staff, who is subordinate to the Ministry of Defense (Israel), defense minister. On the orders of first prime minister David Ben-Gurion, the IDF was formed on 26 May 1948 and began to operate as a Conscription in Israel, conscript military, drawing its initial recruits from the already-existing paramilitaries of the Yishuv—namely Haganah, the Irgun, and Lehi (militant group), Lehi. It was formed shortly after the Israeli Declaration of Independence and has participated in List of wars involving Israel, every armed conflict involving Israel. In the wak ...
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Oshkosh Corporation
Oshkosh Corporation, formerly Oshkosh Truck, is an American industrial company that designs and builds specialty trucks, military vehicles, truck bodies, airport fire apparatus, and access equipment. The corporation also owns Pierce Manufacturing, a fire apparatus manufacturer in Appleton, Wisconsin, and JLG Industries, a manufacturer of lift equipment, including aerial lifts, boom lifts, scissor lifts, telehandlers and low-level access lifts. Based in Oshkosh, Wisconsin, the company employs approximately 15,000 people around the world at 130 facilities in 24 countries. It is organized in four primary business groups: access equipment, defense, fire and emergency, and commercial. History Founded in 1917 as the Wisconsin Duplex Auto Company, the company was created to build a severe-duty four-wheel-drive truck. After the first prototype was built, the company began to develop rapidly. This first four-wheel-drive truck, known today as "Old Betsy", is still owned by Oshkosh ...
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Logistics Vehicle System Replacement
The Logistic Vehicle System Replacement (LVSR) is a family of heavy-duty military logistics vehicles of the United States Marine Corps (USMC) based on a common 5-axle ten-wheel drive (10x10) chassis. The vehicles vary in individual configuration by mission requirements, with three variants in service: a cargo, a wrecker and a tractor truck. The LVSR was designed and is manufactured by Oshkosh Defense. The first LVSRs were ordered in 2006. The LVSR is the USMC's equivalent of the U.S. Army’s Heavy Expanded Mobility Tactical Truck (HEMTT) and Palletized Load System (PLS). The Marines do not use the HEMTT or PLS and the Army does not use the LVSR, but both services use a common trailer (M1076) with all three truck types. Development and production history The predecessor of the LVSR, the MK48 Logistics Vehicle System (LVS), had entered service with the US Marine Corps (USMC) from 1985 and in the late 1990s a project to replace the LVS was started. As a precursor to a formal L ...
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Gun Laying
Gun laying is the process of aiming an artillery piece or turret, such as a gun, howitzer, or mortar, on land, at sea, or in air, against surface or aerial targets. It may be laying for either direct fire, where the gun is aimed directly at a target within the line-of-sight of the user, or by indirect fire, where the gun is not aimed directly at a target within the line-of-sight of the user. Indirect fire is determined from the information or data that is collected, calculated, and applied to physical coordinates to identify the location of the target by the user. The term includes automated aiming using, for example, radar-derived target data and computer-controlled guns. Description Gun laying is a set of actions to align the axis of a gun barrel so that it points in the required direction. This alignment is in the horizontal and vertical planes. A gun is "traversed" (rotated in a horizontal plane) to align it with the target, and "elevated" (moved in the vertical plane) ...
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155 Mm Artillery
Year 155 ( CLV) was a common year starting on Tuesday of the Julian calendar. At the time, it was known as the Year of the Consulship of Severus and Rufinus (or, less frequently, year 908 ''Ab urbe condita''). The denomination 155 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events * The Council of Rome, a pre-ecumenical church council, is held and presided over by Bishop of Rome Anicetus. Births * Cao Cao, Chinese statesman and warlord (d. 220) * Dio Cassius, Roman historian (d. c. 235) * Tertullian, Roman Christian theologian (d. c. 240) * Sun Jian, Chinese general and warlord (d. 191) Deaths * Pius I, Roman bishop * Polycarp, bishop of Smyrna (b. AD 65 AD 65 ( LXV) was a common year starting on Tuesday of the Julian calendar. At the time, it was known as the Year of the Consulship of Nerva and Vestinus (or, less frequently, year 818 ''Ab urbe condita'') ...
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Wheeled Self-propelled Artillery
A wheel is a rotating component (typically circular in shape) that is intended to turn on an axle bearing. The wheel is one of the key components of the wheel and axle which is one of the six simple machines. Wheels, in conjunction with axles, allow heavy objects to be moved easily facilitating movement or transportation while supporting a load, or performing labor in machines. Wheels are also used for other purposes, such as a ship's wheel, steering wheel, potter's wheel, and flywheel. Common examples can be found in transport applications. A wheel reduces friction by facilitating motion by rolling together with the use of axles. In order for a wheel to rotate, a moment must be applied to the wheel about its axis, either by gravity or by the application of another external force or torque. Terminology The English word ''wheel'' comes from the Old English word , from Proto-Germanic , from Proto-Indo-European , an extended form of the root . Cognates within Indo-European in ...
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