T-80U without Kontakt-5 | M829A2 | Armor Penetration

Simulation of a M1A2 Abrams projectile hitting the frontal armor of T-80U. 120mm M829A2 APFSDS ( projectile, ~21mm diameter DU penetrator) at 1630 m/s vs T-80U hull front armor: 50mm SHA 35mm Glass Textolite 50mm SHA 35mm Glass Textolite 50mm SHA at 68 degrees 120mm muzzle velocity (M829A2) - 1680 m/s. 1630 m/s refers to a distance of approximately 1 km. SHA - Semi Hardened Steel ( 400 BHN RHA)