OT: Electric vehicles

mildone_rivals

Heisman
Dec 19, 2011
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mildone_rivals

Heisman
Dec 19, 2011
55,607
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Would you please refer me to where Musk or any Tesla employee ever said the Cybertruck glass would be 'bulletproof."

God, I can't believe I'm responding to anything you posted.
What flavor ice cream would you like with your great big slice of humble pie?
 

lne001

Junior
Nov 7, 2002
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May God help you!
This was pretty well-known.
What flavor ice cream would you like with your great big slice of humble pie?

I believe I asked for an example of Musk or any Tesla employee saying that Cybertruck glass would be bulletproof. I'm still waiting, and will be for a long, long time. Bulletproof means resistant to bullets, not resistant to thrown steel balls.

Should be easy to find for you Cybertruck experts.
 

Knight Shift

Heisman
May 19, 2011
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I believe I asked for an example of Musk or any Tesla employee saying that Cybertruck glass would be bulletproof. I'm still waiting, and will be for a long, long time. Bulletproof means resistant to bullets, not resistant to thrown steel balls.

Should be easy to find for you Cybertruck experts.
I hate posts like this, and I don't know you, and I really don't want to be in a war of splitting hairs. I have stated multiple times that I am agnostic to Tesla. I admire what Musk and Tesla have accomplished, particularly their economy of scale. I have no interest in any current Tesla model because I dislike their styling and some of their choices--lack of phone integration (if that's still a problem), but let's stick to the topic at hand.

Please, gracefully take the loss here.

In the first video I posted, did you see the background red letters "DEMO TESLA ARMOR GLASS"? Was that Elon Musk taking part in the demonstration?

@jtung230 cited a patent. I have not read said patent, but here's an article from Teslarati, which is a Tesla fanboy website that purportedly reports accurately on all things Tesla:
"Tesla rolled out several new patents related to the Cybertruck today, one of them being the “bulletproof” Armor Glass that CEO Elon Musk talked about on several occasions."

"When Musk joined Jay Leno in a Cybertruck ride that was aired on MSNBC’s Jay Leno’s Garage a year ago today, the former late-night TV show host asked the Tesla CEO why anyone would want bulletproof, armored glass on their truck.


“Because it’s badass, and it’s super cool,” Musk quickly replied. “Do you want your truck to be bulletproof or not?”"

 

lne001

Junior
Nov 7, 2002
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the first video I posted, did you see the background red letters "DEMO TESLA ARMOR GLASS"? Was that Elon Musk taking part in the demonstration?

Armor Glass is not bulletproof glass. Go to Armor Glass's website, as I did, and notice that they never use the term 'bulletproof."' Musk has never stated nor implied that that Armor Glass was bulletproof, and that is not splitting hairs.

"Tesla rolled out several new patents related to the Cybertruck today, one of them being the “bulletproof” Armor Glass that CEO Elon Musk talked about on several occasions."
Same comment as above. Oh, by the way, Teslarati is as capable of misunderstanding/misstating as the three of you guys.

"When Musk joined Jay Leno in a Cybertruck ride that was aired on MSNBC’s Jay Leno’s Garage a year ago today, the former late-night TV show host asked the Tesla CEO why anyone would want bulletproof, armored glass on their truck.
This is blatantly wrong. The exact conversation was as follows .

May I suggest you rewatch the original Cybertruck unveiling on YouTube and pay more attention this time.
 
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Knight Shift

Heisman
May 19, 2011
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Armor Glass is not bulletproof glass. Go to Armor Glass's website, as I did, and notice that they never use the term 'bulletproof."' Musk has never stated nor implied that that Armor Glass was bulletproof, and that is not splitting hairs.


Same comment as above. Oh, by the way, Teslarati is as capable of misunderstanding/misstating as the three of you guys.


This is blatantly wrong. The exact conversation was as follows .

May I suggest you rewatch the original Cybertruck unveiling on YouTube and pay more attention this time.


You lose. Right out of Musk's mouth. I'm sure you will backtrack and explain away.
May I suggest you give up?

 
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lne001

Junior
Nov 7, 2002
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You lose. Right out of Musk's mouth. I'm sure you will backtrack and explain away.
May I suggest you give up?
So when he says to Rogan that it will be bulletproof you assume he is talking about the glass and not the stainless steel body, even though the original presentation explicitly showed the effect of a 9mm impact on the steel but not on the glass. That would be an incorrect assumption.

I see you have dropped your first three examples of Musk stating that the glass was bulletproof. Do you at least acknowledge that you totally misunderstood or misstated each of them, especially the Leno interview?

Believe what you want, and I'll do the same, and nobody will give a damn.
 

Knight Shift

Heisman
May 19, 2011
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So when he says to Rogan that it will be bulletproof you assume he is talking about the glass and not the stainless steel body, even though the original presentation explicitly showed the effect of a 9mm impact on the steel but not on the glass. That would be an incorrect assumption.

I see you have dropped your first three examples of Musk stating that the glass was bulletproof. Do you at least acknowledge that you totally misunderstood or misstated each of them, especially the Leno interview?

Believe what you want, and I'll do the same, and nobody will give a damn.
 

RU4Real

Heisman
Jul 25, 2001
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Not that I care enough to have a dog in this fight, but it would be much less stupid to claim that the vehicle glass is bulletproof than to claim that the body is bulletproof.

For a body panel to stop a 9mm, it would need to be about 1/4" thick (assuming stainless steel). The average thickness of a body panel, depending on which panel it is, is between 0.5mm and 2mm. So your bulletproof panel would have to be 3x to 6x thicker - and heavier.

If, on average, 30% of a vehicle's total weight is BIW ("body in white", the industry term for all of the body panels, untreated and unpainted) and we assume that a CT weighs about 5000 lbs then to make it "bulletproof" would require an additional 2+ tons of weight.

Glass, on the other hand, can be made "bulletproof" through the use of polycarbonate which, between the weight of the thicker glass and the additional weight required by heavier motors, tracks, actuators, etc., typically adds about 400 lbs. in total weight to the vehicle.

All this is to say that claiming "he meant the body, not the windows" is a bit far-fetched.
 
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Knight Shift

Heisman
May 19, 2011
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Not that I care enough to have a dog in this fight, but it would be much less stupid to claim that the vehicle glass is bulletproof than to claim that the body is bulletproof.

For a body panel to stop a 9mm, it would need to be about 1/4" thick (assuming stainless steel). The average thickness of a body panel, depending on which panel it is, is between 0.5mm and 2mm. So your bulletproof panel would have to be 3x to 6x thicker - and heavier.

If, on average, 30% of a vehicle's total weight is BIW ("body in white", the industry term for all of the body panels, untreated and unpainted) and we assume that a CT weighs about 5000 lbs then to make it "bulletproof" would require an additional 2+ tons of weight.

Glass, on the other hand, can be made "bulletproof" through the use of polycarbonate which, between the weight of the thicker glass and the additional weight required by heavier motors, tracks, actuators, etc., typically adds about 400 lbs. in total weight to the vehicle.

All this is to say that claiming "he meant the body, not the windows" is a bit far-fetched.
Materials science guy here. Not going to check the thickness of stainless steel, but according to a Tesla patent, the stainless steel is 30X cold-rolled, which apparently improves the ballistic properties. Musk has claimed the thickness of the panels is 3 mm. 🤷‍♂️


A sheet metal engineer disagrees. I would not drive through a war zone expecting bulletproof anything.


 

RU4Real

Heisman
Jul 25, 2001
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Materials science guy here. Not going to check the thickness of stainless steel, but according to a Tesla patent, the stainless steel is 30X cold-rolled, which apparently improves the ballistic properties. Musk has claimed the thickness of the panels is 3 mm. 🤷‍♂️


A sheet metal engineer disagrees. I would not drive through a war zone expecting bulletproof anything.



I think the 2nd guy has the right of it.

From a ballistics perspective, steel with a very high tensile strength used as structural body panels on vehicles is very unlikely to be "bulletproof" for the simple reason that energy from the projectile has to be dissipated somehow and high tensile strength steel isn't going to do that. What it's going to do is break / shatter.
 
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Dec 4, 2010
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Materials science guy here. Not going to check the thickness of stainless steel, but according to a Tesla patent, the stainless steel is 30X cold-rolled, which apparently improves the ballistic properties. Musk has claimed the thickness of the panels is 3 mm. 🤷‍♂️


A sheet metal engineer disagrees. I would not drive through a war zone expecting bulletproof anything.


I think the idea is the body of CT will be dent resistant (to a degree) and scratches are an easy DIY fix; something truck owners may be interested in.
FWIW, there was a demo video shown during the reveal of the bulletproof capabilities.
 
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mildone_rivals

Heisman
Dec 19, 2011
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I'm happy to point out the flaws of any car I own. And happy to mock the ridiculous marketing nonsense spewed by the manufacturers of those cars. I can already name flaws in the 2 new cars I have coming in and they haven't even been built yet.

Conversely, the Teslerati become intensely and often angrily defensive of any perceived slight to cars they don't own. Or, in this case, cars nobody owns yet. And they treat Tesla marketing hyperbole as if it's some kind of God-etched absolute truth.

In a lifetime of being a "car guy" with thousands of hours of reading and talking cars with people who love cars, I've never seen anything like it. It's way up there on the mass social behavior weirdness scale.
 

Knight Shift

Heisman
May 19, 2011
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Stainless steel body panels were described as bulletproof to a 9mm handgun during the CT reveal. Nothing about the glass being bulletproof.
As usual, @jtung230 posted misinformation.
That's not what Elon said to Joe Rogan in the video posted above. Maybe Elon corrected himself later. Sorry, but going by the words of Musk is a fairly safe bet. Every CEO makes missstatements once in a while, and perhaps that is what happened here?
 

Knight Shift

Heisman
May 19, 2011
87,496
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I think the 2nd guy has the right of it.

From a ballistics perspective, steel with a very high tensile strength used as structural body panels on vehicles is very unlikely to be "bulletproof" for the simple reason that energy from the projectile has to be dissipated somehow and high tensile strength steel isn't going to do that. What it's going to do is break / shatter.
I'm thinking that perhaps some sort of composite material with interwoven carbon or other ceramic fibers with a metal might do the trick, but I'm just spitballing on this one.
 

RU4Real

Heisman
Jul 25, 2001
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I'm thinking that perhaps some sort of composite material with interwoven carbon or other ceramic fibers with a metal might do the trick, but I'm just spitballing on this one.

The most successful bulletproof plating tends to be sacrificial (carbon fiber comes to mind) so that the destruction of some small amount of the plating material absorbs the energy of the projectile.
 
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mildone_rivals

Heisman
Dec 19, 2011
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The most successful bulletproof plating tends to be sacrificial (carbon fiber comes to mind) so that the destruction of some small amount of the plating material absorbs the energy of the projectile.
True.

Speaking of sacrifices, small children also make for great energy absorption of projectiles people are shooting at us. The bonus is they can be shifted around to accommodate changes in the shooting angles.

Of course, that leaves us fewer small children we can sell to pay for our new cars. So the solution isn't entirely rainbows and unicorn farts.
 

RUevolution36

All-American
Sep 18, 2006
8,165
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Agree.

Chevy Blazer is another.
at least the blazer is still reminiscient of its original truck form.

mustang - 2 door sports coupe/convertible - muscle car legend
corvette - 2 door sports coupe/convertible - american sports/muscle car legend
skyline - 2 door/4 door sporty coupe/sedan - best known as the basis of the GTR

taking these and using their namesakes on crossovers/SUV's is sacrilege.
 

fsg2_rivals

Heisman
Apr 3, 2018
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at least the blazer is still reminiscient of its original truck form.

mustang - 2 door sports coupe/convertible - muscle car legend
corvette - 2 door sports coupe/convertible - american sports/muscle car legend
skyline - 2 door/4 door sporty coupe/sedan - best known as the basis of the GTR

taking these and using their namesakes on crossovers/SUV's is sacrilege.
It is not. Neither in form nor purpose.

The Ford Bronco is reminiscent of the Blazer's original form, though.