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The gun data computer was a series of artillery computers used by the U.S. Army for coastal artillery, field artillery and anti-aircraft artillery applications. For antiaircraft applications they were used in conjunction with a director computer.
The last TACFIRE fielding was completed during 1987. Replacement of TACFIRE equipment began during 1994.[ citation needed ]
TACFIRE used the AN/GYK-12 , a second-generation mainframe computer developed primarily by Litton Industries for Army divisional field artillery (DIVARTY) units. It had two configurations (division and battalion level) housed in mobile command shelters. Field artillery brigades also use the division configuration.
Components of the system were identified using acronyms:
The successor to the TACFIRE system is the Advanced Field Artillery Tactical Data System (AFATDS). The AFATDS is the "Fires XXI" computer system for both tactical and technical fire control. It replaced both BCS (for technical fire solutions) and IFSAS/L-TACFIRE (for tactical fire control) systems in U.S. Field Artillery organizations, as well as in maneuver fire support elements at the battalion level and higher. As of 2009, the U.S. Army was transitioning from a version based on a Sun Microsystems SPARC computer running the Linux kernel to a version based on laptop computers running the Microsoft Windows operating system.
One reason for a lack of surviving examples of early units was the use of radium on the dials. As a result they were classified as hazardous waste and were disposed of by the United States Department of Energy. Currently there is one surviving example of FADAC at the Fort Sill artillery museum. [9]
The 90 mm gun M1/M2/M3 was an American heavy anti-aircraft and anti-tank gun, playing a role similar to the German 8.8cm Flak 18. It had a 3.5 in (90 mm) diameter bore, and a 50 caliber barrel, giving it a length of 15 ft (4.6 m). It was capable of firing a 3.5 in × 23.6 in shell 62,474 ft (19,042 m) horizontally, or a maximum altitude of 43,500 ft (13,300 m).
In ballistics, the elevation is the angle between the horizontal plane and the axial direction of the barrel of a gun, mortar or heavy artillery. Originally, elevation was a linear measure of how high the gunners had to physically lift the muzzle of a gun up from the gun carriage to compensate for projectile drop and hit targets at a certain distance.
The M114 is a towed howitzer developed and used by the United States Army. It was first produced in 1942 as a medium artillery piece under the designation of 155 mm Howitzer M1. It saw service with the US Army during World War II, the Korean War, and the Vietnam War, before being replaced by the M198 howitzer.
The Army Battle Command System (ABCS) is a digital Command, Control, Communications, Computers and Intelligence (C4I) system for the US Army. It includes a mix of fixed/semi-fixed and mobile networks. It is also designed for interoperability with US and Coalition C4I systems.
In ballistics, the ballistic coefficient of a body is a measure of its ability to overcome air resistance in flight. It is inversely proportional to the negative acceleration: a high number indicates a low negative acceleration—the drag on the body is small in proportion to its mass. BC can be expressed with the units kilograms per square meter (kg/m2) or pounds per square inch (lb/in2).
The L118 light gun is a 105 mm towed howitzer. It was originally designed and produced in the United Kingdom for the British Army in the 1970s. It has since been widely exported. The L119 and the United States Army's M119 are variants that use a different type of ammunition.
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.
The 120 mm gun M1 was the United States Army's standard super-heavy anti-aircraft gun during World War II and the Korean War, complementing the smaller and more mobile M2 90 mm gun in service. Its maximum altitude was about 60,000 ft (18,000 m), which earned it the nickname stratosphere gun.
The United States Army Field Artillery School (USAFAS) trains Field Artillery Soldiers and Marines in tactics, techniques, and procedures for the employment of fire support systems in support of the maneuver commander. The school further develops leaders who are tactically and technically proficient, develops and refines warfighting doctrine, and designs units capable of winning on future battlefields. The school is currently located at Fort Sill, Oklahoma.
The 155 mm gun M1 was a 155 millimeter caliber field gun developed and used by the United States military. Nicknamed "Long Tom", it was produced in M1 and M2 variants, later known as the M59. Developed to replace the Canon de 155mm GPF, the gun was deployed as a heavy field weapon during World War II and the Korean War, and also classed as secondary armament for seacoast defense. The gun could fire a 100 lb (45 kg) shell to a maximum range of 14 mi (23 km), with an estimated accuracy life of 1,500 rounds.
The 3-inch gun M5 was an anti-tank gun developed in the United States during World War II. The gun combined a 3-inch (76.2 mm) barrel of the anti-aircraft gun T9 and elements of the 105 mm howitzer M2. The M5 was issued exclusively to the US Army tank destroyer battalions starting in 1943. It saw combat in the Italian Campaign and on the Western Front in Northwest Europe.
The United States Army Armor School is a military training school located at Fort Moore, Georgia. Its primary focus is the training of United States Army soldiers, non-commissioned officers, warrant officers, and commissioned officers. It also trains for equipment handling, including the M1 Abrams, the Bradley Fighting Vehicle, and the Stryker Mobile Gun System. The Armor School moved to Fort Benning in 2010 as part of the United States Base Realignment and Closure program.
A director, also called an auxiliary predictor, is a mechanical or electronic computer that continuously calculates trigonometric firing solutions for use against a moving target, and transmits targeting data to direct the weapon firing crew.
List of abbreviations, acronyms and initials related to military subjects such as modern armour, artillery, infantry, and weapons, along with their definitions.
The Ballistic Research Laboratory (BRL) was a research facility under the U.S. Army Ordnance Corps and later the U.S. Army Materiel Command that specialized in ballistics as well as vulnerability and lethality analysis. Situated at Aberdeen Proving Ground, Maryland, BRL served as a major Army center for research and development in technologies related to weapon phenomena, armor, accelerator physics, and high-speed computing. In 1992, BRL was disestablished, and its mission, personnel, and facilities were incorporated into the newly created U.S. Army Research Laboratory (ARL).
The 36th Field Artillery Regiment is a field artillery regiment of the United States Army.
Project Manager Mission Command is a component of the Program Executive Office Command, Control, and Communications-Tactical within the United States Army. PM MC is responsible for the development, deployment, and maintenance of integrated Mission Command software capabilities for the Army and Joint forces. The project manager ensures efficient fielding, effective training, and professional support for tactical and other unit types. PM MC’s product lines cover the areas of maneuver, fires, sustainment, and infrastructure.
The AN/GYK-12 is an obsolete 32-bit minicomputer developed by Litton Industries for the United States Army. The AN/GYK-12 is a militarized version of the L-3050 computer ruggedized for use in the TACFIRE tactical fire direction system and in the TOS² system which was never fielded. The design dates from the 1960s.
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