Merkava Mk. 3 (All variants) have a thinner engine shieldwall compared to the other Merkavas... Why?

HI all,
I’ve noticed that the engine shieldwall of the Merkava Mk.3 is a lot thinner than the other vehicles in the family.

This is the thickness of the Mark 3:

This is of the Mark 2:

And this is of the Mark 4:

I find it weird that earlier and later versions will have thicker wall considering the hull was left with almost no changes between the different variants.

Is there any documents or reason for it?

gaijin intern accidentally pressed a wrong key

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I wouldn’t be surprised lol… Question is if there is a way to bug report it by common sense sonce I guess it’s stil classified?

https://community.gaijin.net/issues/p/warthunder

right here, but i would assume you will get hit by a classic “not a bug))”

Exactly… Either “not a bug” or “please give sources” that’s why I’m asking hoping somone could give an insight :')

Fun fact: the engine eats the spall when hit but that shieldwall makes a lot more increasing the dmg

Yes exactly my issue here… It seems that a 35mm shieldwall after everything produces less spall since there is less residual penetration left in the penetrator, but for the mark 3, since the wall is too thin (but not enough unlike some light vehicles) it produces significantly more spall than it should be…

But just to note: Most vehicles with engine wall gets showered with spall post successful penetration…

AFAIK armor thickness doesn’t matter for spall creation, so whether its 10 or 100mm it will create the same amount of spall, as its tied to projectile itself.

You would need something like 5mm sheet to not create secondary spall with it, while it would be able to absorb most of the spall from previous penetration.