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I hope my question is not very stupid, anyway, i have always curios about the design philosophy of Western tanks such as Leopard, M1, Challenger versus Russian tank such as T80, T-90. Vs 1- Why do Western tank mostly use NERA instead of ERA? Isn't ERA more effective than NERA, especially against KE and they are also much lighter and replaceable ? 2- Why don't Western tank mostly have active hard kill protection? I know there are some recent plans to integrate Trophy on M1A3 but why is it so late? On one hand, even ancient Russian tank have active hard kill countermeasure. On the other hand, very new Leopard 2A7V still doesn't have active hard kill countermeasures 3- Why don't Western tank use ATGM like Russian? they can reach much further than Sabot round and there are also top attack option that allow them to penetrate the tank roof, where there are almost no armor? I understand that APDS round fly much faster and more resilient against countermeasure so they are probably better option at short range, but i think ATGM is better at long range. 4- Is there any modern MBT that can survive a hit from 152 mm HE round? such as one fired by KV-2? 5- For tank on tank combat, which one is better between Leopard 2A7 and Oplot-M equipped with Duplet? Is there any known counter for HEAT warhead and APDS round against Duplet?
I realized we don't have a topic for a proper discussion of what future AFVs should look like, in the style of a general AFVs discussion rather than country-specific threads. I spotted a revived potential need for future MBTs - a coaxial autocannon to replace the coaxial MG. The reason? An APS neutralizer. Here's my short post on why I think it should happen: I didn't add it there, but I see lasers as a potential alternative. However, I don't think they're viable because of the power required to properly neutralize an APS's components, especially if these components are dispersed, or worse yet, effectively camouflaged. An autocannon will be able to disable not only the APS but other external components all at once. Similar to the engagement method showcased by Russia where they fired 2 Kornet missiles (almost) simultaneously to defeat an APS, a hypothetical mode of operation could include firing a burst of 2 KETF shells at a target prior to firing a main gun shell. An additional alternative could be to use a single main gun ABM shell that would initiate outside the scope of the APS's engagement range (e.g engagement range is 30m so it initiates at 50m), but it would have 2 main issues that are a longer time to kill a target and a greater consumption of ammunition (up to a 3rd of ammo would have to be allocated to ABM munitions strictly for anti-armor operations).