Puma S1/VJTF Dev Thread

So now fix the significantly underperforming accuracy and overheating as well as the way too high drag coefficient for the APFSDS + the armor and we might actually have a good IFV.

But I still don’t thing Puma and KF41 should be 10.7 because the BMP-2M totally dabs on them

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but you know it wont happen I mean we tried for 3 years and everything we were told was hat documents from the manufacturer arent sources :D

from BR I think its ok the Vilkas performs very good at that BR but its faster so take that with a grain of salt

Wait fr 💀

Yes they finally have fixed it so it works properly.

Yep.
Instead we used 30 year old data from a pre production vehicle to model the 2A7V :)

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I would love to see a possibility to unistall the IRCM flashlight at all.
I have played with the regular PUMA a decent amount and from my feeling the missiles at tht br dont really care about ircm. I would love to see the option for a shorter PUMA

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oh yes and we were told several times that things would be fixed even got shown lists of what would be fixed by smin that same list misrepresenting several reports as “not enouth sources” while having M A N U F A C T U R E R brochures or websites linked xD

And people say gaijin isn’t bias.

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kekw-e1624718684665

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On the topic of the armor of the Puma, (@Smin1080p_WT will be interesting for you as well);

First:

The armor in front of the powerpack should be significantly thicker (this photo is from the Puma prototype currently located at the Munster Panzer Museum, as such it’s missing the additional layers of the production vehicle):

Here’s a napkin calculation of armor density if it were built from pure RHA:

We know that Pumas armor, on top of the base hull is increased by 43 t - 31.45 t = 11.55t

The side armor is ~4.2m^2 on the right side and 450mm thick.
The side armor is ~5.0m^2 on the left side and 450mm thick.
The roof is ~10.1m^2 and mostly spaced / rubber armor.
The turret armor is a total of ~2m^2.

So in total thats an area of 21.3m^2 where the protection is increased.
Assuming the armor is perfectly evenly distributed that would net us ~542kg / m^2.

542kg / m^2 of pure steel (@ 7900 kg/m^3) would be equal to a 1m^2 steel plate with a thickness of 69mm.
The base armor is 320kg/m^2 = 40mm steel (required armor against 14.5 API).
So combined the Pumas all around avrg armor should be:

40mm + 69mm = 109mm, if it would be build out of pure steel.

However, what needs to be kept in mind is that RHA is significantly less weight efficient than modern composites, and the Puma still took on additional ~11 tons in pure armor when going from Standard A to Standard C.

The protection of the hull’s side (at an angle of 0 degrees) should be (at the very least) ~110mm instead of the current ~70mm.

At the moment, the armor of the vehicle is nowhere near close enough to the estimated values, neither for the S0, nor for the VJTF.

Two:

image

This graphic is baased on this photo:

Spoiler

Amount of steel used in the construction of the upper plate is:

40 + 5 + 7 + 5 + 7 + 5 for a total of 69mm of RHA/high hardness steel, as such, the upper plate, when fired at from an AoA that is neutral to it, should be equal to 69mm RHA + (~6mm rubber * 0.3 KE) ~2mm of rubber, achieving ~71mm against KE projectiles. Does it though? Far from it:

It can only do 46mm against KE, i.e due to the combining (by Gaijin) of all of Puma’s armor layers into one to simplify the model, it has resulted in the protection being lower than its steel alone should offer (have any of you ever seen RHA that has a lower KE modifer than 1.01/1.1? I haven’t. Unless of course, Gaijin thinks that PSM/KMW used ductile steel in the construction process).

Now, at an angle, this 46mm turns into ~130mm RHAe against KE when the vehicle is shot at from the front, we can calculate the modifier that governs this: it’s 2.82608695652 (130/46)

If the upper plate had been performing as it’s supposed to (i.e ~71mm of KE at an AoA of 0), then the upper plate should offer protection of about ~200mm KE instead (71*2.82608695652).

edit: (not to mention, it is highly likely Puma’s armor follows the same philosophy as Leopard 2s wedge armor, so the first two layers are meant to break KE projectiles apart, with the rest being there to absorb the fragments and such, it is very possible that the KE protection should be higher than ~200mm RHAe, to what degree I can’t say, yet).

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do a issue report but dont get your hopes up they have been denied with far more sources and calculations.

at this point I honestly dont think anything will happen to the Puma armor

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Hopefully this helps in getting them to fix it but I kinda doubt it. Nice job either way though.

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But why is it not effective against IRCCM atgms?
Both , f you search with the wayback machine on the official Hensoldt site for MUSS (before it wws switched to MUSS 2.0) it is mentioned that it is effective against all wire-guided ATGMs currently in service (so most likely also jamresistent ones) and in a second source it is also explicitly mentioned that MUSS 1.0 is effective against “optically tracked wire-guided, jam resistant 2nd and 3rd generation (those guided by IR seeker) missiles” as well as laser guided atgms and laser range finders.
So why is it implemented in such a limited way, even though not a single vehicle on BR 10.0 and 10.7 uses atgms, which is jammable due to the current implementation and there are sources that indicate that the system can do more ?

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@Sahilku010101

have fun convincing Gaijin to not make something Israel made a piece of shit in-game.

The Spike, Merkava, Namer, and Sholef are all in the same boat.

Except that other lofting ATGM are screwed the same way, PARS, Maveric, Hellfire, and probably others as well …
Just with spike it is mist obvious…

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I’m well aware, but I was just pointing out that it’s a nightmare to get anything Israeli fixed in the first-place cause Gaijin fucking hates it in-game.

fixed your post.

im gonna torture you <3