The American M36 was a late-war tank destroyer armed with the 90mm M3 cannon, with its T33 APBC round being capable of knocking out most German armour, including the Panther from around 1000m. The simulation shows what would happen if a Panther was inclined by 5°, increasing the effective angle of the upper plate from 55° to 60°, with the shot being fired from 200m away.
The hardening of the T33 allowed it to perforate angled armour better than most other full calibre AP rounds. The brittle nose shatters on impact, reducing the overturning moment transferred to the tougher base. This allows the base of the round to keep relatively true during penetration.
The upper plate of the Panther varied in thickness and hardness between models, with the one shown being 80mm of 250BHN RHA (assumed to be of good quality).
Amazing thumbnail and background artwork from: Prototype Frog [ Ссылка ]
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