That piece would no longer exist on the M1A1 and later, as it would no longer be necessary, as the Resolver wouldn’t be there anymore. To be honest, the M1A1 model in game was made well before this document was found.
Sorry for the crude drawing, but there are two pieces there not one
That’s a Sep v2 pictured.
I first though that piece you are speaking of was not modeled, @SPANISH_AVENGER pointed out to me it was. Im saying there is an additional piece of armor mounted to that which is not modeled in game. It sits there screwed into that piece. I don’t know what it’s called.
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again in the document that you says that it comfirms your “assessment” doesnt show that.
Yes it does when you look at the first photo I posted.
Where?
That is screwed into this
The drawing clearely shows that there is no material in there, just a howllow cavity.
Tbh I want to say that piece pictured above is not the same as the cutaway, although it does exist in the circled volume and is not the trunnion or armor set.
Looks like a good, 3 to 4 inches of extra material ontop of the trunnion, but not the whole volume in the cutaway.
Given too that the edge plates seem to be cast from the same piece, I’m thinking that might be a spacer for the 120mm.
You can’t have a hollow cavity with counterbored bolts
The bolts are circled
(again a very rushed cad drawing)
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Again in the cutaway doesn show any material, anything this thick would have a proper delimitation and a proper shadowing, again im not saying that it has or doesnt irl, just that this cutaway that you’re using shows the same layout that is in game.
Looking at the M1E1’s setup vs the base M1, the armor set does seem more recessed compared to the M68’s mount, which would lend credence to a different spacer being used to mount the XM256.
Further bit for this - M1E1 TANK PROGRAM
Specifies between the M1 and M1E1 the gun shield was modified.
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The cutaway might not show it for ease of understanding but when paired with the first and second photos in the initial post, there is no denying that that piece is an additional piece of armor.
It still doesnt show it and it clearely delimitate the hollow space if it was an homogeneus piece it woulnt have interior lines so… this would be just speculation on your behalf
The first two photos with and without the additional armor confirm the existence of said armor. I already explained that you need material in order to machine counter bored holes into. I am a machinist by trade and I could physically make that piece. I don’t recall saying it was homogeneous
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You could easily weld some threded sleaves to the back side, again even with the irl image you cant confirm if it is hollow or not, specially using a cutaway that doesnt show that.
That’s a silly thought.
Even if it is silly It is completely possible, even if you dont like it.
Bolt heads have to have something to sit on to tighten down to, so realistically from what’s being said from him being a machinist it’s more than realistically possible. You don’t seat bolts into a hollow cavity.
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That would be way less possible.
You would need to machine each individual sleeve to the exact length, then machine off each individual sleeve to the correct angle since it varies depending where it would be. Then have a welder sit there and weld each sleeve individually into the base plate hoping that he is more accurate that a cnc machine.
That versus.
You stick the cast piece into 2 vises and press the green start button.