Comments by "" (@tomk3732) on "Abrams, Leopard and Challenger 2 vs. T-72: How Western Tanks Compare to Russia’s Armor | WSJ" video.

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  5.  @steeltalon2317  M1 armor is about 100mm RHA inferior to T-72A on the front turret cheeks. M1A1 armor is superior to T-72A (or else why would they bother) - and lets say its similar to T-72B without ERA. I assure you T-72B was penetrated by inferior rounds in this war already - so clearly with better rounds it will not be a big deal to deal with M1A1 especially with much better round. Sure, we could do a test - as it is not simple to translate armor to RHA that is made of composites - i.e. rounds has to be designed to defeat certain composite or its penetration will be weaker. However, here we are dealing with a wide margin of error - thus it is quite safe to say that vacuum 2 will have no issues with M1A1. We are talking here about direct hit, not a glancing hit - by same account you could do a glancing hit on T-55 and also just damage it - direct hit, onto turret cheek where there is a warm human behind it - not more armor. Russian tanks do not have main gun ammunition surrounding the crew in most instances - the ammo is in the carousel in the floor of the tank. Some extra ammo can be stored in blow out panel compartment - this is for T-90 / Leopard 2 style tanks. For many T-72s - as in the case of M1, some extra ammo is usually not carried. Thus in the case of penetration it is very rare to have any major explosion right away - if crew survives the initial penetration it leaves to fight another day. Tank is on fire and eventually ammo cooks of in the turret and makes it go boom. Sure it is better to have blow out panels vs. not, but their importance is way over rated. Also depleted uranium armor in M1 - same as with its main gun using depleted uranium is not some kind of super technology - its mostly a crouch used by the US. The main gun is obsolete - it cannot produce maximum penetration at high speeds required of tungsten - so it uses uranium - b/c uranium does not need such high speeds. The uranium turret plates were added when it was found out that M1 armor plainly sucked - I mean brand new tank and it was already inferior to your enemy's tank somewhat dated armor. So US again had to "fix" the issue and did so with some uranium plates. If both these uranium solutions were do great everyone would be using them - Russia does have DU rounds for their T-72s - they could be used when needed for older tanks.
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