Скачать или смотреть THE MOST UNIQUE APFSDS vs "IMPROVED" T-72A | 3BM26 APFSDS Armour Penetration Simulation

The simulation presents the unique 3BM26 APFSDS projectile impacting the upper glacis of the "improved" T-72A (1984), at 2km.

The upper glacis of the T-72A (1984) has been based on the information from the Soviet Armour Blog, where the 60 and 50mm plates are ~300BHN hardness Rolled Homogenous Armour (RHA), while the inner plates have been modelled as ~530BHN High Hardness Armour (HHA). Angled at 68°, the armour provides a Line-of-Sight (LoS) steel thickness of 414mm. Around 390mm of LoS steel was penetrated, so based on an approximate nominal penetration value of 450mm for 3BM26 at 2km, the armour has a mass effectiveness of ~1.15. However, it should be noted that monolithic heavy metal alloy projectiles will behave differently against the layered armour.

The 3BM26 Armour-Piercing Fin-Stabilised Discarding-Sabot (APFSDS) projectile entered service in 1983, featuring a unique design with a penetrating core mounted in the rear, with an air gap in front of it. This was done to avoid the issues that front-mounted cores faced, where they could be dislodged or shattered when striking oblique or spaced armour. Based on information on Tankograd (thesovietarmourblog), the core was also changed to a tungsten alloy (WHA) to increase its toughness and density over tungsten carbide (WHA would almost certainly offer better penetration against the armour array shown here). A steel follower rod is placed behind the core to increase its penetrative power. The air gap is to allow the core and follower to maintain their terminal velocity while the body decelerated during penetration. It is intended that they will only stike the armour once the body has eroded, maximising their penetration. A thin aluminium spacer has been placed in the cavity which acts to retain the core during transport and flight, but is not strong enough to impede it during penetration. The front of the projectile features a tungsten alloy penetrating cap to increase penetration and to prevent the steel body from shattering upon impact. Its quoted that 3BM26 can penetrate 420-490mm of Rolled Homogenous Armour (RHA) at 2km, at 0°.

Amazing thumbnail artwork from: Serhii Ryzhkov https://www.artstation.com/artwork/YB...