oh wow. that’s a lot of weight.
in my head it does not sound right.
(note that this is not an argument for Abrams having spall liner, i’m just trying to make sense of the weight for my own sanity)
for example Kevlar KM2 (the one US military uses) weighs about 1.44g per cubic cm (using 1.5g for math convenience).
Spoiler
https://ntrs.nasa.gov/api/citations/20210020869/downloads/Hypervelocity%20Impact%20Study%20for%20Migration%20from%20Kevlar%20KM2%20705%20to%20KM2%2B%20775_V4.pdf
so if you want a 1cm thick liner it weighs 15kg per square meter (1.5x100.00/1000).
Lets say you double that (or use a better and denser kevlar) for more protection making it 30kg per square meter.
Lets count on the very high end here and guess you need 20 square meters to cover the inside of the tank. that makes it 600kg (30x20) now add some thin metal, lets say 2mm steel at 7.85g per cubic centimeters making it 7.85/5=1.57 (1.6 for ease of math) grams per square centimeter or 1.6x100.00/1000=16kg per square meter. again 20 square meters used to count high gives (16x20) 320kg
soo 600kg 2cm thick kevlar and 320kg 2mm steel gives 920kg total, lets round that out to add mounting hardware and such making it 1000kg or one metric ton.
now keep in mind that i counted high on every number here and even made the kevlar quite thick.
so how that becomes 2 metric tonnes by their calculations i do not understand.
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The SEPv2 was a 2000s Era tank used primarily against Urban Combat. At the time, the threat was RPG type warheads and missiles, not Kinetic Penetrators. DU was not seen as necessary for the production run until the v3.
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I do not know much about the math behind it. It’s just what they say. I’ve also been told that Kevlar is a general term referring to several things in the military.
I am simply putting forward a document you requested. Anything I say is less valuable than what is inside that Document.
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The sep v2 is a 2007 tank with multiple blocks inside it like every other tank. The SEP v1 was likely featuring the 5 prototype with hull armor. Hence why they removed the limit of 5 hulls on the 2006 licenses.
Show documentation and prove Gaijin wrong. That is how these things work. Assumptions do not cut it.
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Here are the 1999 and the 2006 licenses showing the removalof the 5 hull limit.
And here is the part of the 2001 document talking about testing the new turret and hull armor.
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True, i used specifically KM2 version of kevlar that is the military grade one for the calculations.
Thanks for the source :)
the numbers just doesn’t make sense to me x)
but they probably know more than me on the subject.
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I see that, but can you direct me to where it states specifically that DU hull armor was added for the SEP V2.
I do not see it. All I see is the indicator that the hull has been reworked by adding a new turret assembly and complete refitting of the entire vehicle. It does not mention DU additions.
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I’m not a genius when it comes to math, but I can comfortably say that Spall Liners between two armor plates does not make sense based on logic. If the Kevlar is not in the plate, it should be seen when looking inside Abrams series tanks, but it is not visible indicating that it does not exist.
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All of these documents predate SEP v2. And being that over 75% of the U.S inventory is still V2 do not expect to see any documents released untill 2029 when the V3 fielding is set to be finished.
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Okay, but where does it talk about the DU.
People are not arguing between two armor plates, they are arguing between last armor plate and an inner thinner metal plate that isn’t armor but is instead a bendable metall and bends away instead of making more metal fragments (brittle vs pliable metals).
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I’ve seen many claims about Kevlar between the armor plates.
And if there is another plate behind the one intended to stop fragmentation, it wouldn’t make much sense, no?
Think about it. If there’s a plate behind your spall plate, it will just cause more spalling.
Perhaps I’m not understanding something. I’m pretty tired.
If the blue plate is intended to stop spalling inside the tank, shouldn’t more spall be created after when it punches into the metal turret?
Or at least that looks like Metal to me.
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does it specify where the depleted uranium is? I know certain models have it in the turret but lack it in the hull.
It listed hull and turret armor testing. Gaijin already said that the document stated there were 5 tanks with hull armor. You had acknowledged that already.
I’m totally fine with an extra vehicle being added which includes such test DU plates, but if it wasn’t in the production models, I think it should remain off of the current SEP in game. Besides, a DU SEP without all that ERA to weigh you down while being an extra 11.7 would be nice, no?
but think of it acting like this:
Spoiler
https://youtu.be/9To4vimvHYE?si=HymEapc_LAoSBd2W&t=124
bending outwards like a blooming flower instead of shattering.
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