game name ArmorSandbox So far, only in Google play #tank #warthunder #physics #tank #gta6 ##sim #simulation #armorsandbox #destroy #crazy as in the USA, during experiments with swept projectiles in the early 1960s[5] and during the development of the 152-mm XM578 MBPS in 1964-1972, they came to a scheme with a two-pronged release type[6], which is still used in the West — as it turned out later, the second approach is preferable.[7] The body weight of the feathered OBPS ranges from 3.6 kg in older models to 5-6 kg or more in models for advanced tank guns of 140-155 mm caliber. The diameter of the OBPS bodies without tail ranges from 40 mm in older models to 22 mm or less in new promising OBPS with a large elongation. The elongation of the OBPS is constantly increasing and ranges from 10 to 30 or more. The optimization problem in the design of a shot is related to the search for the material and manufacturing technology of the core body with its maximum elongation, providing acceptable external ballistic characteristics and its structural integrity upon impact on an obstacle, as well as materials and methods to reduce the parasitic mass of the pallet and the disturbances transmitted to the core during its separation to improve accuracy. Designers strive to increase the elongation of the OBPS bodies due to the fact that when the body is lengthened, both the transverse load of the core and other factors affecting armor penetration increase. In general, armor penetration increases with an increase in the elongation of the OBPS, the density of the core material and the rate of its penetration into the armor (barrier). Cores made of heavy alloys with elongations exceeding 30 are prone to bending deformations when driven through the bore and after pallet separation, as well as to destruction when interacting with multipregrade and spaced armor. The density of the material is currently limited, as currently there are no materials denser than tungsten and uranium in technology that are practically used for military purposes. The speed of the OBPS is also limited by values in the range of 1500-1800 m/s and depends on the design of artillery guns and ammunition for them. A further increase in speed is associated with research work carried out in the field of projectile throwing using liquid propellant artillery pieces, electrothermochemical throwing, electrothermal throwing, electric (magnetic) throwing using railguns, Gauss systems, their combinations, as well as combinations of electrothermochemical and electromagnetic throwing methods.. At the same time, an increase in speed over 2000 m/s for many variants of projectile materials leads to a decrease in armor penetration. The reason is the destruction of the projectile upon contact with most variants of armored obstacles, which eventually exceeds the increase in armor penetration due to the increase in speed. As such, the projectile's velocity usually increases armor penetration as it grows, while the durability of armor materials decreases at the same time. In some cases, the effect can be summed up, in some cases not, if we are talking about composite armored barriers. For monopregrades, these are more often just different names for the same process. - @armorsim.sandbox