Large Caliber Rounds - Larger sizes include 120mm, 105mm and 50mm direct shot rounds. Supported platforms include Abrams tanks, Stryker mobile artillery systems (MGS), emerging next-generation combat vehicles - unmanned combat vehicles (OMFV) and mobile fire defense (MPF).
The current 120mm Tactical Tank Weapons to support the Armored Brigade (ABCTs) have fifth generation kinetic power (KE) rounds (M829A4) and multi-target rounds (XM1147). The M829A4 KE ammunition has been upgraded to counter the threat of the latest advanced weapons and is in full production. The XM1147 Advanced Multi-Purpose (AMP) box is a high-energy multi-purpose ammunition designed to deliver the effects of explosion, penetration, armor, and splitting to near and far targets. The AMP round combines the features of the previous four rounds: 1
Large Caliber Rounds
The M830A1 HEAT round, M908 barrier reduction round, and finally the M1028 printer box. The M1028 is a type of pistol that delivers fierce fire against large-scale attacking infantry. AMP printer boxes can be programmed in three different ways depending on the connection, including point-to-point explosion. Delay or shock.
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The 120mm Tank Training Ammunition currently has the following printer boxes in production: M865 Target Practice (TP) Cone-stabilized (CS) Discarding-Sabot (DS) Tracer (TPCSDS-T) that simulates the KE strategy. And the M1002 trainer, which is similar to the M830A1 tactical round. It should be noted that 2
The M865 (M865A1) generation is under development and will be fully operational by the end of 2021. Also 2
Descendants of His Excellency Trainer M1002E1 are currently in development and will soon mimic the AMP cartridge.
To support the power, the Stryker MGS 105mm is supplied with each family of KE and HE tablets as well as printer boxes. The M1040 printer box delivers fast-fire shots against large infantry strikes at close range. The new 105mm M724A2 is a short training cartridge box designed to give warriors the ability to train to maximize the efficiency of the 105mm M900 (APFSDS-T) KE tactical cartridge that provides armor penetration capabilities. The TP-T 105mm M467A1 cartridge printer box is a ball bearing match to the M393A3 HE / HE-P tactical ring.
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To support the next generation Bradley Fighting Vehicle (i.e. OMFV), the 50mm family has the XM1202 TP-T, XM1203 APFSDS-T and XM1204 HE Air Bursting-Trace (HEAB-T). All rounds are under development. A projectile or projectile is a projectile fired from the muzzle of a gun; It is a bullet that is usually fired from a bullet fired from a fast bullet with separate ammunition. Shells for guns that are seven inches in size and higher are called master shells. For guns of six inches and smaller, they are called pistols. The main function of a rocket is to transmit its charge to the most vulnerable point of the enemy, and its relative efficiency is proportional to its carrying capacity. The first missiles were pistols (later bullets were also designed), long arrows, hand grenades and arrows. In the siege of the fortified city, shells and shells were initially used as ammunition, formerly for throwing large stones and later wooden beams covered with iron and often covered with combustible material. . Ammunition, as we understand it today, came into the war through the use of guns and evolved with the improvement of the weapons used. Although the lead ball served all the purpose of archery, it was found to be too soft to hit by artillery, and the stone shot was not only too light for good flight, but it also Both give way to the previous steel because it lacks durability.
Ballistic missiles can be classified into three main categories: spin-stabilized, end-stabilized, and rocket-propelled (both fin-stabilized and spin-stabilized). The official military classification is based on the planned use of ammunition and explosive components (e.g., anti-personnel, anti-tank and anti-fire). Significant progress has been made in rocket design in recent years. All the bullets have the same shape, that is, a hollow steel cylinder with a pointed point, a soft metal plate near the base that receives the rifle and provides rotational motion to the shell. Flight
Most of the rotary stabilization guns in use today use rotary balancers. Projectile rotation contributes to flight stability. Rotation is obtained by firing the rocket through a screw tube. The bullet enters the gun through a rotating bar, which is usually made of copper. The rotating groups are connected by places and grooves. At 2,800 feet per second, a rotation speed of 250 revolutions per second is experienced. The rotating ball bearing is fully balanced (same as the tank wall) and is defined by a length-to-diameter ratio of about 5: 1. They work well on low orbits (45 ° quadrant height). In high-trajectory applications, they tend to be too stable (maintain the firing angle) and therefore do not follow satisfactory trajectories.
Stable shells These shells get their stability from the fins behind the shell. Usually four to six wings are used. Additional stability is obtained by tilting the leading edge of the fin to give the ball a slight spin (about 20 revolutions per second). Fin-stabilized rockets are usually smaller. A wooden or metal soap bar fitted around the shell is used to center the shell in the hole and provide a gas seal. Such shells vary in length to diameter ratio from 10: 1 to 15: 1. The Fin-stable rocket is useful because it maintains good trajectory at high launch angles and can be designed with the lowest traction, thus increasing range and / or terminal speed. However, screw-balanced ball bearings are ineffective because extra ball lengths must be loaded and the load capacity is low relative to the ball length.
Large Caliber Ammunition
Unlike conventional rockets, which are stabilized in flight by gyroscopic forces caused by high rotational speeds, the projectile is balanced by the force of the wind acting on the projectile during flight. Although projectile rotation does not contribute to the stability of the wing projectiles, a low rotation rate around the longitudinal axis is necessary to reduce the negative effects of mass and configuration asymmetries that may result from material imperfections and production tolerances.
Stabilized rockets are best fired from smooth guns that do not emit rolling motion due to the lack of a gun. For example, such weapons are mounted on advanced combat tanks and usually have a force of 60 mm or more.
Autocannons, ranging in size from about 12.7 to 40 mm, are fully rifle and usually fire different types of stable rockets, including armored shells. To improve the armor penetration of such weapons, it is necessary to develop technologies that allow them to successfully use screw barrels with high terminal efficiency. In this case, successful use is understood as the compatibility of ammunition with guns and feed systems, as it requires the structural strength necessary for reliable operation in all operating conditions established for such weapons. When ensuring the accuracy of the projectile. Or better than the bullets fired from that weapon.
A screw-balancing rocket typically has a subcaliber insert and a vane assembly with four or more fins attached to its rear. This set of rockets is symmetrical in length and is fired from a gun by means of a grenade launcher. The two main functions of the launcher are to support and guide the subcaliber shells along the center line of the barrel during acceleration and to form a seal to capture the propulsion gas during movement in the tank. The final function is accomplished by a rotating bar that connects the grooves of the barrel and thus provides rotation to the bullet in line with the rotation of the barrel and the speed of the ball.
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The modern stable rocket includes a sliding seat between the swivel and the sabot. The sliding seat is designed to reduce the amount of rotation transmitted from the rotating bar to the sabot body by about 70-90 percent. The degree of rotation transmission in the rotating belt position is determined by the slip friction. Thus, when exiting the muzzle, the rotational speed of a stable bullet is about 10 to 30 percent of that of a stable rotating rocket fired at the same barrel speed.
Two problem areas were encountered with the method of firing the propeller-balanced rocket from the cannon. First, it is difficult to control the roll reduction in the wheelchair to some degree.
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