Countering DU Rounds

eckherl

The Bunker Group
Verified Defense Pro
Eckherl, it is BAD argument. It dont lead anywhere and dont contribute to discsussion. "How do you know what noone have designed anything better than F-22"??? "We dont need anything better than J-10 to fight overexpencive ,slow ,fragile birds like F-35!"

Only 3 years ago i would be ridiculed to hell by mentioning "Abrams" and "ERA" in one phrase. These peoples said what only backwards russians with they inherit inability to produce decent composite armor could field such weak excuse as ERA. Now the very same peoples sing "ERA is good! ERA is future! USA is ahead of all!" Do you think USA MOD's thought much different? Iraq and Lebanon experience changed they mind. I havent heard of any major ERA developments 6-7 years ago in USA....

BTW, T-90 is "small and cramped" EXACTLY becouse it offer better protection than M1 serie...


You cant easely place higher caliber gun. At very least it will require completele turret replacement and major changes in hull. Not to tell about ammo and other issues. It would be much cheaper to just produce new tank...

It is completely irrelevant if newer rounds are deployed in Iraq. If these rounds got to ANY unit - be it combat or training - they ARE compromissed. Hell, for all we know they could be compomissed while they were in drawning board...

P.S. There must be reason why both russians and West hanging on they 120/125 mm guns, forced to spend a LOT of money on new ammo, with constant gun vs armor race , without insuring penetration...

And the reason here is not what 120/125 mm is "enouth". No. True reason is what inducing anything large is MAJOR pain in the ass.
Sorry Chrom - but we just do not need ERA protection like the Russians must depend on.

No - we will not need a new turret to house a 140mm, all modifications will be done inside of the vehicle, could be a dual caliber.

Yes it is important mentioning the fact that the M829A3 has not been distributed to armor units in Iraq, it is simply not needed, also the Germans do a pretty good job of controlling their munitions.:)
 

Chrom

New Member
We indeed replace all our remaining Marders with Pumas. We just don't have that many Panzergrenadier units anymore. :D



Combat ammo does not get to a unit that easy like one might think. Most tankers never use a real KE (If not in war) but use training KEs the whole time.
Getting a functioning complete set of modern DM53/63s together with a L/55 is IMHO not very easy. Even getting a broken one from live firing tests is not easy. It is not as if our test centers shoot these babies and then let the broken ones rot in the landscape.
I will not question the possibilty to get such combination. As i said, for all we know such round could be compomissed before it leaved drawing board. It is only interesting if someone want to get exact penetration figures. It is absolutely not need if anyone want to develop ERA capable of affecting such round. The basic knowledge about muzzle velocity and round hardness is more than enouth. I pretty much doubt what developers of K-5 tested it with EVERY HEAT charge around the world - and that didnt prevent K-5 affecting such charges exactly same way as others. Only radical change in HEAT construction - tandem warhead - allowed HEAT warheads to penetrate ERA.

And when I compare what I got to know about Russian style ammo handling (Due to lots of close relatives having served in the NVA) compared to ours...
Again, you only need 1 example... It is not even question of handling. There will be always bad sheep in the herd.
 

Chrom

New Member
Sorry Chrom - but we just do not need ERA protection like the Russians must depend on.

No - we will not need a new turret to house a 140mm, all modifications will be done inside of the vehicle, could be a dual caliber.

Yes it is important mentioning the fact that the M829A3 has not been distributed to armor units in Iraq, it is simply not needed, also the Germans do a pretty good job of controlling their munitions.:)
Sorry, but your MOD think different. Sorry, T-80UD got better PASSIVE protection against KE than counterporary M1A1 and russian designers STILL installed K-5. And about new 140mm gun.. i heard new turret is needed. You abviously heard otherwise.

Even now T-90 got comparable to M1A2SEP composite armor protection against KE. Currentnly installed ERA dont work very well against APFSDS rounds, so as you see russian designer do not depend on ERA for KE protection. But due to ERA advances, it is now possible to radically improve KE protection, just like HEAT protection 20 years ago. Something what USA still cant master...

And btw, i simply dont understand why everyone mention M829A3 and Iraq??? What they have on common?

P.S. Only 3 years ago your fiercly defended M1A2 capabilities to withstand HEAT warheads, pointing at magic "chobham" armor and ridiculed obviously stupid russian desingers forced to install ERA on they tanks. And smart USA desingers who invented such great armor what dont need ERA.

Now, after Iraq and Lebanon experience, when your own MOD admitted shortcomings in passive armor protection and prised ERA - you sing same song about ERA, APFSDS and magic "DU inserts" what make ERA unneeded. Cant you look at past? Cant you learn something?
 
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eckherl

The Bunker Group
Verified Defense Pro
Sorry, but your MOD think different. Sorry, T-80UD got better PASSIVE protection against KE than counterporary M1A1 and russian designers STILL installed K-5. And about new 140mm gun.. i heard new turret is needed. You abviously heard otherwise.

Even now T-90 got comparable to M1A2SEP composite armor protection against KE. Currentnly installed ERA dont work very well against APFSDS rounds, so as you see russian designer do not depend on ERA for KE protection. But due to ERA advances, it is now possible to radically improve KE protection, just like HEAT protection 20 years ago. Something what USA still cant master...

And btw, i simply dont understand why everyone mention M829A3 and Iraq??? What they have on common?

P.S. Only 3 years ago your fiercly defended M1A2 capabilities to withstand HEAT warheads, pointing at magic "chobham" armor and ridiculed obviously stupid russian desingers forced to install ERA on they tanks. And smart USA desingers who invented such great armor what dont need ERA.

Now, after Iraq and Lebanon experience, when your own MOD admitted shortcomings in passive armor protection and prised ERA - you sing same song about ERA, APFSDS and magic "DU inserts" what make ERA unneeded. Cant you look at past? Cant you learn something?
When did MOD ever state this officially inregards to the M1A1 and T-80UD.
You were the one that stated that U.S or German forces could of left M829A3s or DM 63s laying about. The only place that you could possibly concieve that Russia got there hands on a A3 model is Iraq, not unless you have come to the conclusion that we let our soldiers fire these on gunnery ranges with in the U.S, is that what you feel Chrom.
Chrom - you have never heard me state that Russian tank designers are stupid and cannot build a good tank, Russia has their concept for armor protection and we have ours, you have never heard me state that a M1 series or Leopard series cannot be taken out by a Russian T series tank, the tank destruction game and debate will go on and on. As far as needing ERA installed on the vehicle flanks on U.S armor, if we are going to use tanks in Urbanized settings then yes we better, it is a cheap solution for shaped charged warheads penetration prevention(older models). you have seen that I have given credit for Russian ERA being able to with stand hits from KE projectiles, my comments is that it will not be able to withstand the latest generations of KE rounds from the U.S and Germany and a few others.

P.S I have only been a member here for 14 months now.:)
 

Chrom

New Member
When did MOD ever state this officially inregards to the M1A1 and T-80UD.
State what? What T-80UD have better armor than M1A1? We pretty much know it already. I talked about USA MOD stating the need of TUSK upgrade, including ERA.
You were the one that stated that U.S or German forces could of left M829A3s or DM 63s laying about. The only place that you could possibly concieve that Russia got there hands on a A3 model is Iraq, not unless you have come to the conclusion that we let our soldiers fire these on gunnery ranges with in the U.S, is that what you feel Chrom.
Are you telling what these rounds are NEVER fired on gunnery ranges? And moreover, what they are not even in tanks ammo compartment? And moreover, not even in divisions ammo storage?
Becouse all these places are relatively easy to get into, given usuall law of high numbers. Remember, it is just a round, not a complete tank. A single man can easely snatch one.

Chrom - you have never heard me state that Russian tank designers are stupid and cannot build a good tank, Russia has their concept for armor protection and we have ours, you have never heard me state that a M1 series or Leopard series cannot be taken out by a Russian T series tank, the tank destruction game and debate will go on and on. As far as needing ERA installed on the vehicle flanks on U.S armor, if we are going to use tanks in Urbanized settings then yes we better, it is a cheap solution for shaped charged warheads penetration prevention(older models). you have seen that I have given credit for Russian ERA being able to with stand hits from KE projectiles, my comments is that it will not be able to withstand the latest generations of KE rounds from the U.S and Germany and a few others.
ERA by itself cant withstand ANY round. Even very old HEAT rounds will penetrate it. ERA merery reduce the PENETRATION of such rounds!!!
NII Stali claims currently installed Relict ERA reduce APFSDS penetration by 20-25%, and new generation ERA reduce APFSDS penetration by 1.6-2 times. Now, we pretty well know M829A3 penetration figures - it is estimated at MOST 800mm. Now, 800/1.6( min for new ERA) = 500mm. Now dont tells us what T-90 frontal armor is thinner than that. Becouse it dont.
Even if we take current gen ERA (Relict) and 25% reduction - it is still 800*75% ~ 600mm. Even that is less than estimated T-90A composite armor protection.
 

eckherl

The Bunker Group
Verified Defense Pro
State what? What T-80UD have better armor than M1A1? We pretty much know it already. I talked about USA MOD stating the need of TUSK upgrade, including ERA.
Are you telling what these rounds are NEVER fired on gunnery ranges? And moreover, what they are not even in tanks ammo compartment? And moreover, not even in divisions ammo storage?
Becouse all these places are relatively easy to get into, given usuall law of high numbers. Remember, it is just a round, not a complete tank. A single man can easely snatch one.

ERA by itself cant withstand ANY round. Even very old HEAT rounds will penetrate it. ERA merery reduce the PENETRATION of such rounds!!!
NII Stali claims currently installed Relict ERA reduce APFSDS penetration by 20-25%, and new generation ERA reduce APFSDS penetration by 1.6-2 times. Now, we pretty well know M829A3 penetration figures - it is estimated at MOST 800mm. Now, 800/1.6( min for new ERA) = 500mm. Now dont tells us what T-90 frontal armor is thinner than that. Becouse it dont.
Even if we take current gen ERA (Relict) and 25% reduction - it is still 800*75% ~ 600mm. Even that is less than estimated T-90A composite armor protection.
Chrom - Four things for you.

1. You are stating that you know the armor layout and metal/material properties of a M1A1.

2. You are claiming that you know the penetration levels of a M829A3 round.

3. You are claiming that you know the impact effects of Relict tiles with M829A3, when you do not even know the impact levels of a M829A2 nor a M829A1 for that matter. Chrom if you state to me that you do know the impact levels for these rounds then you should be comfortable giving me the initial muzzle velocity for each round and the muzzle velocity at 2000 meters for each round.

4. Yes - I am stating to you that M829A3s have not been issued to armor units, that they have not fired it on gunnery ranges, these rounds are stored in secured area`s with controlled access. They have not even been issued due to current threat levels, M829A2 will handle everything that is currently fielded including T-90.
 

Waylander

Defense Professional
Verified Defense Pro
And I will tell you that in Germany combat ammo is not shot at live fire ranges except during tests.
And they don't let the fired test rounds were they have burried themselves...

The ammo depots are seperated from the units and highly controlled. No one goes in there and takes a round.
And tanks don't carry them here in germany but only training KEs.
One doesn't graps a 30kg, half man long KE in such a depot and walks out with it under his coat...

As Eckherl pointed out your guesses are just that. Guesses.
How often have these guesses been proven right?
We talked about this before often enough.

And that a tank in an urban environment needs extra side, rear and top protection says exactly what about frontal protection against modern KEs?

As if we never knew that the sides of our tracks are vulnerable even to older handheld AT-weapons...
 

Chrom

New Member
Chrom - Four things for you.

1. You are stating that you know the armor layout and metal/material properties of a M1A1.
Officialy we dont know it. But unofficialy it is known. There are also pretty good estimations.
2. You are claiming that you know the penetration levels of a M829A3 round.
Same here.While we dont know exact fugures, we can pretty well estimate it from basic facts like L/D ratio and MV, compared to M829A1 and similar rounds.
3. You are claiming that you know the impact effects of Relict tiles with M829A3, when you do not even know the impact levels of a M829A2 nor a M829A1 for that matter. Chrom if you state to me that you do know the impact levels for these rounds then you should be comfortable giving me the initial muzzle velocity for each round and the muzzle velocity at 2000 meters for each round.
NII Stali advertise it. M829A1 is pretty old round, and Relict was sure tested at very least with that round. M829A3 dont differ much from M829A3 - a bit longer, a slightly bit different alloy... Cant see how it could radically affect ERA perfomance. As i said, only radical change in HEAT warhead conception made it possible to defeat ERA. \
Moreover, i never seen ANYONE ,even remotely close to M829Ax rounds development, claim what no single ERA can affect M829A3 round. They could claim something in the line "the rounds is not affected by K-5" - and they could be right. After all, K-5 is old ERA, not even designed to defeat APFSDS rounds. "Relict" is pretty new development, and i doubt M829A3 designers could get hand on it before M829A3 was fielded. And new gen ERA... not even fielded yet, and specifically designed to defeat most modern APFSDS rounds ... you claim what this ERA would not affect M829A3 becouse of some innate magic? Get real.
4. Yes - I am stating to you that M829A3s have not been issued to armor units, that they have not fired it on gunnery ranges, these rounds are stored in secured area`s with controlled access. They have not even been issued due to current threat levels, M829A2 will handle everything that is currently fielded including T-90.
M829A2 estimation show what it cant penetrate even T-90 composite armor. T-90A armor + "Relict" ERA is a problem even for M829A3.

If you dont agree with me, please show YOUR estimation of T-90A passive armor, and then YOUR estimation of "Relict" ERA effect on APFSDS rounds. And dont forget to list your sources. My sources for tanks protection are well known estimations of such respected experts as Paul Lakowski, Vasiliy Fofanov, Harkonner.
For ERA my sources is NII-Stali - the developer of russian ERA, and world leading institute in that area.
For M829xx penetration figures - just general consencus from various sources. Again, if you have different opinion - list it here with sources.
 

eckherl

The Bunker Group
Verified Defense Pro
Officialy we dont know it. But unofficialy it is known. There are also pretty good estimations.
Same here.While we dont know exact fugures, we can pretty well estimate it from basic facts like L/D ratio and MV, compared to M829A1 and similar rounds.
NII Stali advertise it. M829A1 is pretty old round, and Relict was sure tested at very least with that round. M829A3 dont differ much from M829A3 - a bit longer, a slightly bit different alloy... Cant see how it could radically affect ERA perfomance. As i said, only radical change in HEAT warhead conception made it possible to defeat ERA.
Moreover, i never seen ANYONE ,even remotely close to M829Ax rounds development, claim what no single ERA can affect M829A3 round. They could claim something in the line "the rounds is not affected by K-5" - and they could be right. After all, K-5 is old ERA, not even designed to defeat APFSDS rounds. "Relict" is pretty new development, and i doubt M829A3 designers could get hand on it before M829A3 was fielded. And new gen ERA... not even fielded yet, and specifically designed to defeat most modern APFSDS rounds ... you claim what this ERA would not affect M829A3 becouse of some innate magic? Get real.
M829A2 estimation show what it cant penetrate even T-90 composite armor. T-90A armor + "Relict" ERA is a problem even for M829A3.

If you dont agree with me, please show YOUR estimation of T-90A passive armor, and then YOUR estimation of "Relict" ERA effect on APFSDS rounds. And dont forget to list your sources. My sources for tanks protection are well known estimations of such respected experts as Paul Lakowski, Vasiliy Fofanov, Harkonner.
For ERA my sources is NII-Stali - the developer of russian ERA, and world leading institute in that area.
For M829xx penetration figures - just general consencus from various sources. Again, if you have different opinion - list it here with sources.
Thats what I figured Chrom, this is all shear speculation on everyones part. And I am quite sure that NII-Stali is not giving you guys exact figures because I know for fact that some of that information is misleading. All information inregards to performance levels of current KE projectiles is classified, I have seen the numbers that are thrown out there from folks like Paul, Vas and Harkonnen the Ukrainian and they are all pure speculation. I have told you before that I do have respect for all three of these gentleman especially when it comes to Vas due to his knowledge level. And my sources are the the U.S Army and the position that I served. And I am quite sure that can be verified with this sites administration.:) One should keep a open mind on what they read on different sites, I sure do.
 

FSMonster

New Member
Officialy we dont know it. But unofficialy it is known. There are also pretty good estimations.
Conjectures and wishful thinking.
NII Stali advertise it.
Oh now I get it! That's your measure of objectivity? So you run out and buy any product you see advertised on TV?
Let's see for a moment what does the manufacturer actually claim:
"Integrated ERA can increase protection of the tank against HEAT warheads by factors of 1.5-1.8 and against KE penetrators by factors of 1.2-1.5."

Sure it'll help. Put any metal plate it'll have at least some increase in protection. But to conclude this is sufficient to stop a KE round you know nothing about is rather foolish.

M829A1 is pretty old round, and Relict was sure tested at very least with that round.
Yeah let's pretend it was tested. What was it fired from again? It seems you think it was a piece of cake for the Russians to get their hands on one of these, but the reverse, it seems, is completely impossible:
"Relict" is pretty new development, and i doubt M829A3 designers could get hand on it before M829A3 was fielded.
Before we continue, let's just get this straight: Nobody here is claiming that the new generation ERA won't have ANY impact on ANY KE round.
 

Chrom

New Member
Conjectures and wishful thinking.

Oh now I get it! That's your measure of objectivity? So you run out and buy any product you see advertised on TV?
Let's see for a moment what does the manufacturer actually claim:
"Integrated ERA can increase protection of the tank against HEAT warheads by factors of 1.5-1.8 and against KE penetrators by factors of 1.2-1.5."
This is CURRENT GEN ERA - Relict. There is already next gen ERA devloped. NII Stali claims 1.6-1.8 times reduction for APFSDS penetration with new ERA. Besides, NII Stali is OFFICIAL, well respected organisation. Now, please show me another OFFICIAL, well respected organisation which claim what M829A3 is NOT affected by Relict, what NII Stali is wrong in they advertisment, what M829A3 can penetrate more than 800mm RHA... Cant find it? So what FACTS you can bring into discussion? YOUR wishfull rumors? At least i have official words from official organization.

Sure it'll help. Put any metal plate it'll have at least some increase in protection. But to conclude this is sufficient to stop a KE round you know nothing about is rather foolish.
It is sufficient to reduce such round penetration by given value. For Relict - 1.2-1.5 times. For next gen ERA - up to 2 times. I fail to see why it is impossible. Disrupting HEAT jet, even tandem one, is ok for you - but affecting APFSDS round is pure fantasy? Get real...

Yeah let's pretend it was tested. What was it fired from again? It seems you think it was a piece of cake for the Russians to get their hands on one of these, but the reverse, it seems, is completely impossible:
So bascially, you claim what desingers of M829A3 rounds aquired Relict ERA while developing M829A3 round and tested this round with Relict? Else how can they claim what Relict dont affect such round? (BTW, please SHOW me where they claimed it? Never seen that..) At least designers of Relict could test ERA with very close to M829A3 replacements - the MV of round is well known, the lenghts is well known, the material is basically also well known... You dont need Rheinmetal gun to fire a round with designed velocity.
Before we continue, let's just get this straight: Nobody here is claiming that the new generation ERA won't have ANY impact on ANY KE round.
But you claim what official NII Stali advertising is wrong. While dont show any, even vague proof. At least you should have brought a word from M829A3 designers about Relict... but they are silent. So, again, WHY do you think NII Stali is wrong? Any particular reason?
 
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Chrom

New Member
Thats what I figured Chrom, this is all shear speculation on everyones part. And I am quite sure that NII-Stali is not giving you guys exact figures because I know for fact that some of that information is misleading. All information inregards to performance levels of current KE projectiles is classified, I have seen the numbers that are thrown out there from folks like Paul, Vas and Harkonnen the Ukrainian and they are all pure speculation. I have told you before that I do have respect for all three of these gentleman especially when it comes to Vas due to his knowledge level. And my sources are the the U.S Army and the position that I served. And I am quite sure that can be verified with this sites administration.:) One should keep a open mind on what they read on different sites, I sure do.
Not to show any disrespect, but basicaly, you have unverificable sources of unknown reliabilty. First, becouse you dont know what sources your MOD had when writing reports. Second, becouse you cant show us the reports itself. So we should believe only your unfounded words.

Such "believe me, i'm right" aproach without any facts, dont contribute much to discussion.

So, lets first settle some common grounds:

1. What is frontal armor of T-90? I've seen 700-800mm estimations without ERA. T-90A reportedly have a bit more. Is this a wrong figure? What is your figure then and why?

2. M829A3 penetration is estimated at 760-800mm. Is this a wrong figure? If yes, then please provide your aproximation.

3. NII Stali claims Relict ERA reduces APFSDS penetration by 1.2-1.5 (btw, hardly exact figure) times. Are they wrong? If yes, why? Becouse they are russian? Or there are some other sources what you can point at?

Just basic points, where we can hopefully find a bit of substance and instead of just empty words.
 

DavidDCM

The Bunker Group
Verified Defense Pro
So bascially, you claim what desingers of M829A3 rounds aquired Relict ERA while developing M829A3 round and tested this round with Relict? Else how can they claim what Relict dont affect such round? (BTW, please SHOW me where they claimed it? Never seen that..) At least designers of Relict could test ERA with very close to M829A3 replacements - the MV of round is well known, the lenghts is well known, the material is basically also well known... You dont need Rheinmetal gun to fire a round with designed velocity.
You underestimate how much work is put in the development of a KE round. It's not simply a nail of metal hammered into the armour with a certain velocity. You need the exact composition of the alloy and the exact composition of the gunpowder used (the maindifference between the DM53 and the way more powerfull DM63 is the powder, not the penetrator! ). And these things are are completely unknown to Russian Engineers.

And no, it's not "easy" to snatch one tankround and bring it to Russia. You don't need one black sheep, you would need a whole bataillon of black sheeps, ranking form lowest guard private to highest commanding officers, military as well as civil personell. It's next to impossible to simply snatch or steal something like a tank round unnoticed in Germany or the US. I'm pretty sure that Russian Engineers haven't had any opportunity to test them now. BTW, I'm also pretty sure that Western engineers hadn't had an opportunity to test newest Russian ERA. So touchè here.

If you call Nii Stali an official, well respected organisation, then in your eyes Rheinmetall is an official, well respected organisation, too, isn't it? Look what they write

In response to the need to improve the combat effectiveness of the LEOPARD2 main battle tank in dealing with present and future threats, a new, performance-enhanced kinetic energy (KE) projectile was developped: the 120mm x 570 DM53 (LKE II), capable of defeating all state-of-the-art armoured targets. This projectile was designed and optimised especially for penetrating double-reactive armour.
I'm sure the manufacturer of the M829A3 round would state something similar.
All these companies just try to sell their products, neither of them would ever publish any independent, publicly controlled test results. No company ever is a reliable source when it comes down to judge the actual performance of their product. So what I wanted to say: No, I don't accept NII Stali as a reliable source, cause they aren't.
 

Chrom

New Member
You underestimate how much work is put in the development of a KE round. It's not simply a nail of metal hammered into the armour with a certain velocity. You need the exact composition of the alloy and the exact composition of the gunpowder used (the maindifference between the DM53 and the way more powerfull DM63 is the powder, not the penetrator! ). And these things are are completely unknown to Russian Engineers.
You completely overestimate the importance of such things for ERA development. Why your even need gunpowder? MV is enouth.

And no, it's not "easy" to snatch one tankround and bring it to Russia. You don't need one black sheep, you would need a whole bataillon of black sheeps, ranking form lowest guard private to highest commanding officers, military as well as civil personell. It's next to impossible to simply snatch or steal something like a tank round unnoticed in Germany or the US. I'm pretty sure that Russian Engineers haven't had any opportunity to test them now. BTW, I'm also pretty sure that Western engineers hadn't had an opportunity to test newest Russian ERA. So touchè here.
Ok, leave at it. But APFSDS rounds design is set in stone - as i said, general shape is well known, lengths is well known, MV is well known, even material is pretty well know. There are not much room to do something different. The round itself is only interesting from exact penetration figures point of view. But it is not very important for relative figures affecting ERA. Some as with HEAT rounds - newer rounds may increase penetration, but they will be affected by ERA to just same degree as much older rounds. Again, only radical change in construction - tandem warhead - allowed to penetrate 1st gen ERA.

If you call Nii Stali an official, well respected organisation, then in your eyes Rheinmetall is an official, well respected organisation, too, isn't it? Look what they write
Yes, Rheinmetal is respected organisation. Now, please show me WHERE Rheinmetal said something about Relict ERA??? Especially, with any kind of concrete numbers? Like, you know, "Relict ERA do not affect our rounds" or "Relict ERA reduce our round effectivity by only 10%"?
And, btw, while we are at it - show me WHERE Rheinmetal said something about true perfomance DM-63 rounds? Like, you know, "DM-63 round can penetrate 800mm RHA"?

I'm sure the manufacturer of the M829A3 round would state something similar.
All these companies just try to sell their products, neither of them would ever publish any independent, publicly controlled test results. No company ever is a reliable source when it comes down to judge the actual performance of their product. So what I wanted to say: No, I don't accept NII Stali as a reliable source, cause they aren't.
While it is true to some degree, still respected organisations usually do not stright lie. They can say (lie) something in the line "our round will defeat enemy tanks, even most modern ones" , but they almost never lie like "our round will penetrate 800mm RHA" when said round do NOT penetrate 800 mm RHA. Such blatant lie about basic facts is very rare.

In short, i believe NII Stali. They proved it with K-5 ERA, which work exactly as advertised. They present basic explanation and drawing which show how ERA affect APFSDS and HEAT rounds. You, in turn, dont present ANYTHING. M829A3 and DM-63 manufactures dont even claim what these round are unaffected by Relict or later gen ERA. I fail to see where you got that idea.
 
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Wooki

Defense Professional
Verified Defense Pro
Hey- I've been talking with someone about tanks. However, some of what he has said runs counter to my intuitions and what I've read. In short, there doesn't seem to be much (anything) online about DU rounds and just how effective they are against modern armor.
DU rounds are very effective against modern armor
Specifically, I'm curious as to how effective reactive armor might prove against it.
To date; not very effective and when you come across differing opinions on this it is basically due to the metallurgy and material make up of the penetrator. For example: Someone from Russia will say ERA is very effective against DU rounds. And they would be correct. It is very effective against Russian DU rounds.

Someone from the USA or Europe would say that ERA is not very effective aginst DU and they in turn would be correct as well. A DU round manufactured in Europe or USA will defeat ERA and that is a simple matter of it being made in a different manner to the penetrators that are manufactured in Russia.

To help confuse the issue more, you could also suggest that Russian ERA is better ;)

I was under the impression that reactive armor was mostly developed as a means of countering ATGMs.
Yes that is correct
A uranium tank round seems like it would be too massive and dense to be significantly effected by an explosion in front of it.
Its not the explosion as such, its the plate being forced sideways (the flying plate) that effects the penetrator. Of course you can use a shaped charge to cut the penetrator but then we are talking APS and not ERA. But with regard to flying plates a plate has to exert lateral force upon the penetrator and that is why metallurgy of the DU pentrator is so, so important. Well made penetrators shrug it off. Lower grade penetrators break up.
However, I'm no expert, and I can't find anything online that says one way or another.
Who is? and it seems you have.
Also- I am of the understanding that the M1A2 uses a German-designed gun and older-model British-designed armor. That is correct, yes? Are there any parts of the M1A2 that are foreign-designed, or copied/inspired primarily be not-American sources?
Oh I am sure Ecky and Waylander will testify that the M1 is just an American knock off of a great German tank.:p:

cheers

w
 

eckherl

The Bunker Group
Verified Defense Pro
Officialy we dont know it. But unofficialy it is known. There are also pretty good estimations.
Same here.While we dont know exact fugures, we can pretty well estimate it from basic facts like L/D ratio and MV, compared to M829A1 and similar rounds.
NII Stali advertise it. M829A1 is pretty old round, and Relict was sure tested at very least with that round. M829A3 dont differ much from M829A3 - a bit longer, a slightly bit different alloy... Cant see how it could radically affect ERA perfomance. As i said, only radical change in HEAT warhead conception made it possible to defeat ERA.
Moreover, i never seen ANYONE ,even remotely close to M829Ax rounds development, claim what no single ERA can affect M829A3 round. They could claim something in the line "the rounds is not affected by K-5" - and they could be right. After all, K-5 is old ERA, not even designed to defeat APFSDS rounds. "Relict" is pretty new development, and i doubt M829A3 designers could get hand on it before M829A3 was fielded. gen ERA... not even fielded yet, and specifically designed to defeat most modern APFSDS rounds ... you claim what this ERA would not affect M829A3 becouse of some innate magic? Get real.
M829A2 estimation show what it cant penetrate even T-90 composite armor. T-90A armor + "Relict" ERA is a problem even for M829A3.

If you dont agree with me, please show YOUR estimation of T-90A passive armor, and then YOUR estimation of "Relict" ERA effect on APFSDS rounds. And dont forget to list your sources. My sources for tanks protection are well known estimations of such respected experts as Paul Lakowski, Vasiliy Fofanov, Harkonner.
For ERA my sources is NII-Stali - the developer of russian ERA, and world leading institute in that area.
For M829xx penetration figures - just general consencus from various sources. Again, if you have different opinion - list it here with sources.
Information regarding armor thickness and material properties are listed as classified. Information on armor defeating projectiles are listed as classified. I have not brought any figures or numbers to this discussion. If you feel that I have been mis informed inregards to any testing or information provided by the U.S Army then so be it. There are a few individuals that have knowledge in regards to this that are members at this site location, if they are comfortable giving you the numbers and figures you want to see then they will come forward and provide them.
 

Wooki

Defense Professional
Verified Defense Pro
?

Chrom said:
My sources for tanks protection are well known estimations of such respected experts as Paul Lakowski, Vasiliy Fofanov, Harkonner
Did I just read that correctly? Since when has Paul Lakowski ever been a "respected expert"? I was under the impression he was a defense nut who liked tanks, likes to research, writes a good essay, but has never been in development.

Anyway, that being the case then what you are saying Chrom is that your sources are open sources.

Open sources IMHO are entirely appropriate for this forum, but it is beyond silly to suggest that any such numbers are definitive and it is equally silly (all round) to demand proof otherwise from people who may know. It is a dead end and does not contribute to the discussion.

A good example of open source: Calatan (?) posted a very interesting paper on electric armor that cites 35 year old information in the defense tech section. It would be irrational to suggest the methods highlighted in that paper are being used today, but the paper makes for a good read.


cheers


w
 

FSMonster

New Member
Chrom,

You're speculating that the Russian designers could've somehow reproduced conditions in which their ERA would operate including a copy of the M829A1/A3 penetrator rod. Next they fired it from some sort of a tank gun achieving highest possible velocity they suspect would be coming out of the 120mm tank gun.

That is an interesting and plausible scenario. I am not saying this is impossible but let's face it, the Russian engineers would have to make a few assumptions.

Now, don't you think the reverse process is just as likely. The ERA technology is well known to the western developers but the strategy planners were always in favor of good old heavy block of solid armor. They could count on good engines, transmissions, FCS, tracks, suspension so it's no wonder.

They wouldn't have to acquire samples of Russia's latest ERA, they could have made some on their own and then tested their own rounds against it. They would make adjustments in the design to make sure it's still effective.

As it stands, Russians simply have no reason to chase after the West and match their improvements. All the Russian weapons manufacturers need is to be able to sell their hardware and survive on the market. Their niche is the medium to lower end customer base which demands cheap or barter.

Could Russians make a world class tank, tank gun and tank ammo? You bet they could, but it would cost almost as much as Western designs and this market niche is rulled by the Germans, British, Americans (Israel isn't a tank exporter yet).

There is a lot of distrust towards Russians in general and many will dismiss their weapon designs as a sales pitch. This is made easier by the fact that even their own government doesn't want to buy the best of their weapons. Until then, NII-Stali can claim what they want, let them earn their credibility.
 

Chrom

New Member
Chrom,

You're speculating that the Russian designers could've somehow reproduced conditions in which their ERA would operate including a copy of the M829A1/A3 penetrator rod. Next they fired it from some sort of a tank gun achieving highest possible velocity they suspect would be coming out of the 120mm tank gun.
Yes. As i said, general APFSDS design is nothing fancy - it is just a dart of given length, width and speed.
That is an interesting and plausible scenario. I am not saying this is impossible but let's face it, the Russian engineers would have to make a few assumptions.
some assumtions, yes. But these assumtions will likely make a difference between reducing rod penetration by 35% or 30%, and NOT something radical between 50% and 5%.
Now, don't you think the reverse process is just as likely. The ERA technology is well known to the western developers but the strategy planners were always in favor of good old heavy block of solid armor. They could count on good engines, transmissions, FCS, tracks, suspension so it's no wonder.
ERA technology differs to MUCH, MUCH higher degree. There is generation in ERA development between K-5 and "Relict" . Saying general "ERA" is like saying just "anti-tank round" - without even specifing HEAT of APFSDS, and if HEAT then tandem or not .

K-5 differs from Relict more than 50x style APDS differs from 70x style APFSDS. Next gen ERA is even more different. As such, it is very, VERY unlikely DM-63 desinger could foresee, let alone build something similar to "Relict"
They wouldn't have to acquire samples of Russia's latest ERA, they could have made some on their own and then tested their own rounds against it. They would make adjustments in the design to make sure it's still effective.
As i said, they couldnt. They could build something similar to K-5, but not to "Relict". Becouse "Relict" is radically different from "K-5". Like the difference betwen tandem and usuall warhead.

Another example: Surery, producers of TOW-2B advertise what this ATGM can penetrate ERA. Yes, they are right - it can penetrate old K-5 and new Israel, French, USA ERA. But "Relict" have anti-tandem capabilty, and will strongly affect TOW-2B. Note, affect not becouse of small change. Affect becouse of redically different ERA design. Now tell us what TOW-2B devolpers surery could build somethins similar to russian ERA...
As it stands, Russians simply have no reason to chase after the West and match their improvements. All the Russian weapons manufacturers need is to be able to sell their hardware and survive on the market. Their niche is the medium to lower end customer base which demands cheap or barter.
And now, you want to tell us what West SURERY have a big, compelling REASON to chase after Russians to match they development?
Please, take symmetrical stance. Either:
1. both Russia and USA dont care about each other - and then Russia do not design ERA to stop specifically USA APFSDS - just general modern APFSDS, and USA dont design modern APFSDS to specifically stop modern Russian ERA - just general "ERA"...
or
2. Both keep an eye on each other and design they weapon accordingly. Again, the difference here in generations: M829A3 and DM-63 is the same gen APFSDS as M829A1. Slightly better, but generally the same principle. "Relict" ERA is another generation ERA than "K-5". SPECIFICALLY designed to defeat modern APFSDS rounds.

Could Russians make a world class tank, tank gun and tank ammo? You bet they could, but it would cost almost as much as Western designs and this market niche is rulled by the Germans, British, Americans (Israel isn't a tank exporter yet).
Without a doubt, T-90 right now is world-class tank. A bit worse FCS and thermals than BEST west examples, unprotected ammo compartment - but armor protection and gun is not to blame. In compensation it have same unique properties like much better HEAT protection (bane for modern tanks), very long range reach with ATGM missiles, higher mobility (weight), lower siluette (still very important at long ranges or in plains)
There is a lot of distrust towards Russians in general and many will dismiss their weapon designs as a sales pitch. This is made easier by the fact that even their own government doesn't want to buy the best of their weapons. Until then, NII-Stali can claim what they want, let them earn their credibility.
The difference here, NII-Stali claims what they product affect APFSDS round to given degree (1.2-1.5 times) . AFFSDS round manufactures DO NOT CLAIM what NII-Stali Relict ERA do not affect they rounds. They, at maximum, say something in the line "our APFSDS will penetrate any ERA". Of course they will penetrate. 70 years old round will penetrate ERA... The question is however how much reduced will be APFSDS ability to deal with passive armor...

P.S. For all we know, ERA might affect M829A3 to even higher degree than pervious rounds due thinner M829A3 round.
 
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DavidDCM

The Bunker Group
Verified Defense Pro
The difference here, NII-Stali claims what they product affect APFSDS round to given degree (1.2-1.5 times) . AFFSDS round manufactures DO NOT CLAIM what NII-Stali Relict ERA do not affect they rounds. They, at maximum, say something in the line "our APFSDS will penetrate any ERA". Of course they will penetrate. 70 years old round will penetrate ERA... The question is however how much reduced will be APFSDS ability to deal with passive armor...

P.S. For all we know, ERA might affect M829A3 to even higher degree than pervious rounds due thinner M829A3 round.
Just because they don't state it on their website? Come on, that doesn't mean that they don't have such numbers at all, but I'm pretty sure if you were a member of a MOD of some nation interested in these rounds, they would give you more exact numbers. [conspiracy-mode]Maybe they even hold back such numbers to not alarm Russian engineers and let them imagine to be safe with their Relic![/conspiracy-mode] No, just kidding.

some assumtions, yes. But these assumtions will likely make a difference between reducing rod penetration by 35% or 30%, and NOT something radical between 50% and 5%.
That's just your guessing.
And just as I said, a KE arrow is NOT simply a piece of metal with a certain shape, weight and speed. It is not made out of mono-metal from tip to toe. There are different types of Metal in the tip of the round than in the center or in the end. And the outer layers are again a different type of metal than the inner core of the arrow. Each of these different components has very specialized characteristics and was choosen carefully for a special task. For example the first 15 cm of the round might be specially designed to beat Relic.
You talk as if it would be the easiest task of the world to create a APFSDS round and that every retarted "douchebag" could do that in passing in his lunchtime or so. Than I ask you why the developers of Rheinmetall needed about 30 years from the first 120mm KE round till the today's DM63? Because it was such an easy task?

On the other hand you claim that Western engineers are unable to reproduce something like Relic, because the way Relic works is so incredibly new, secretive and unknown that it is a thing of sheer impossibility for Western engineers to know?

That argumentation skates on this ice, if you ask me.
 
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