Why are the Jpz 4-5 armour values wrong?

Sorry if this has been asked before but I noticed the armour values for the Jpz 4-5 are modeled wrong.

The stat card has the correct armour values (50mm on the front and 30mm on the sides and rear) and every source I’ve found agrees with that, but the model itself only has 30mm on the front, 20mm on the sides, and 8mm on the rear. I’ve checked and it’s not modeled as multiple plates like the sherman jumbo is so I’m certain there’s no error in my observation. Why does the stat card have the correct values but the model is different?

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I would recommend making a bug report for this, with the mentioned documents.

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The armor used to be 50mm but was changed to 30mm, the stat card, like so often, was simpy not updated.

Why was it changed to 30mm though? everywhere I’ve found says it’s 50mm

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I believe the changelog used a training vehicle that was based on the Jpz 4-5 as the source of the change.

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armor 10-50mm, maximum armor thickness 50mm in the text.
Also wrong on wiki.warthunder.com, they state 50/30/30 and in the history text:

“However, the armour is only 50 mm thick sloping, which itself is the very thing for the era the vehicle was introduced.”

And even if they reduced the armor, did they also reduce the weight?
for example if the forward plate is about 2m squared, at 8 gr/cm3, at 50mm it would weigh 800 kg, reducing it to 30mm will result in 480 kg so almost 50% reduction. so with all the other plates reduced in weight, the vehicle should lose even more weight.

if they did reduce armor, the weight should go down and HP/t should go up, the armor would stop very little regardless.

That’s not how it works.

Tanks get their armor modeled and their weight based on whatever sources are available.

If it turns out the armor was incorrectly modeled, it doesn’t mean that the weight is now wrong. Maybe it was wrong before.

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