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Message
re: Titanic tourist submarine goes missing
Posted on 6/23/23 at 12:12 pm to LegendInMyMind
Posted on 6/23/23 at 12:12 pm to LegendInMyMind
quote:
Did it go to the Titanic a dozen times or not?
My guess is that someone like James Cameron understands this better than you. Watch his explanation -- I provided the link with an edit.
1
Posted on 6/23/23 at 12:14 pm to LegendInMyMind
quote:
Thorough inspection post-dive has shelved many of these type subs in the past.
Due to hull integrity issues? I remember it was said that the carbon fiber hull cound not be scanned in order to test integrity during the build and they were relying on acoustic testing. So I guess that begs the question...was it possible to truly even test if there were issues before and after each launch or were they simply relying on this acoustic warning system every time they went out? If so then I agree with Cameron...thats incredibly dangerous
Posted on 6/23/23 at 12:17 pm to ThuperThumpin
quote:
I remember it was said that the carbon fiber hull cound not be scanned in order to test integrity during the build and they were relying on acoustic testing
He said that method was akin to a sensor telling you in mid-flight that your rocket engine ascending to space was on fire.
Posted on 6/23/23 at 12:17 pm to Tiger Khan
You make valid points. Our submarine force tracks depth excursions and I've seen a boat get their depth limitation recalculated to take into account its time below allowable depth (due to possible stress fractures).
And we absolutely kept track of the number of dives. I was on a boat that hit 1,000 dives (and surfaces... thankfully).
We use a specific metal to construct the pressure vessel (HY-80/HY-100) and there are tons of regulations and procedures to ensure we keep water out of "the people tank".
This sub had no business being anywhere near that depth/pressure without a strict safety and quality assurance program.
And we absolutely kept track of the number of dives. I was on a boat that hit 1,000 dives (and surfaces... thankfully).
We use a specific metal to construct the pressure vessel (HY-80/HY-100) and there are tons of regulations and procedures to ensure we keep water out of "the people tank".
This sub had no business being anywhere near that depth/pressure without a strict safety and quality assurance program.
This post was edited on 6/23/23 at 12:19 pm
Posted on 6/23/23 at 12:19 pm to Tiger Khan
quote:
My guess is that someone like James Cameron understands this better than you. Watch his explanation -- I provided the link with an edit.
I guess you got me. A dozen trips to depth on a rig built by a dude who cut corners on everything means it wasn't a viable option.
Posted on 6/23/23 at 12:19 pm to LegendInMyMind
quote:
Again, if the reports that this sub made at least a dozen dives to that depth with everyone making it back fine, how can anyone say the composite material wasn't a viable material? They literally have real world proof that it was.
You think a dozen or so dives before a catastrophic implosion indicates it's a good material to use for submarines? WTF?
quote:
I guess you got me. A dozen trips to depth on a rig built by a dude who cut corners on everything means it wasn't a viable option.
Using carbon fiber was one of the corners he cut my dude.
This post was edited on 6/23/23 at 12:22 pm
Posted on 6/23/23 at 12:20 pm to redstick13
quote:
Have to wonder if the hull was compromised between dives. That's only around 1600 psi while they were reaching up to near 6000 on the dives to depth.
It now appears that then entire carbon fiber hull of the Oceangate had been replaced because it was worn out. The replacement carbon fiber was bought from Boeing at a really good/cheap price because it was past its use by date.
Page 32 or 33 of the TxAg thread has specifics as well as the conotract that would be tourists would sign, LINK
Posted on 6/23/23 at 12:22 pm to Dr RC
quote:
You think a dozen or so dives before a catastrophic implosion indicates it's a good material to use for submarines?
A dozen trips in that sub that was not tested to standard and likely not maintained and inspected to standards between dives is remarkable. Period.
Now, have someone do it right and see where they get.
Posted on 6/23/23 at 12:23 pm to LegendInMyMind
quote:
I guess you got me. A dozen trips to depth on a rig built by a dude who cut corners on everything means it wasn't a viable option.
Well it looks like you got yourself --
1. You're arguing the viability of a material that just imploded, killing 5 people after less than 30 dives.
2. You're refusing to take into account, a person who has infinitely more knowledge on this topic than all of us combined -- is explaining why it's not a viable material.
You're on the wrong side in both cases -- but you will continue to respond, repeating yourself incessantly, that you "know better" --
It says more about you than the actual situation -- so, it's time to move on.
Posted on 6/23/23 at 12:24 pm to crap4brain
This random Joe killed two billionaires in the process. Guess those dudes were naive enough to trust him with their life. Feel sad for the innocent people
This post was edited on 6/23/23 at 12:26 pm
Posted on 6/23/23 at 12:24 pm to LegendInMyMind
There is no doing it right w/CF b/c it's not a material that can handle those kinds of dives. There is no way to use it safely at those depths.
Posted on 6/23/23 at 12:25 pm to LegendInMyMind
I belive it was said with 2 dissimilar materials, adhesive and fiber, you can't non destructive test properly. That's the problem.
Posted on 6/23/23 at 12:28 pm to Saintsisit
quote:
I belive it was said with 2 dissimilar materials, adhesive and fiber, you can't non destructive test properly. That's the problem.
That's right -- the flexion of pressure applied and removed creates integrity issues with the composite. It makes sense.
Posted on 6/23/23 at 12:43 pm to Tiger Khan
Found this article on exactly what happened to them trauma-wise when it imploded.
What really happens to the human body at immense pressures.
This part really stood out to me:
What really happens to the human body at immense pressures.
This part really stood out to me:
quote:
As the submersible collapses, the quickly compressing pockets of gas inside it heat up rapidly, reaching temperatures that may exceed several thousand degrees Celsius for a brief moment. The searing heat would vaporize flesh and bone, but this pales in comparison to the rapid pressure changes already wreaking havoc on the body. The passengers would already be dead due to the massive bodily trauma by the time the heat wave hits.
Posted on 6/23/23 at 12:46 pm to LegendInMyMind
quote:A dozen and a half.
Did it go to the Titanic a dozen times or not?
I think the half is the evidence of nonviability
Posted on 6/23/23 at 12:49 pm to GeauxZone90
quote:
Feel sad for the innocent people
Eh. They knew the risks. Their ego(s) got the better of them.
Posted on 6/23/23 at 1:00 pm to Lonnie Utah
You can at least have some sympathy for the 19 year old who was terrified, didn't want to go, but wanted to please his father, a Titanic fanatic, on Father's Day weekend.
Posted on 6/23/23 at 1:01 pm to Chucktown_Badger
quote:
, if anyone was above where it happened, they'd have seen a roiling surface for a bit.
I don't think you have a grasp of how deep they were, how small they were, and what a small ripple that would've made on the surface of a rolling ocean at the moment the air reached it. And that's IF someone was even within sight of it
Posted on 6/23/23 at 1:03 pm to Kansas City King
quote:
Someone spent their lunch hour making this...
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