Tourist mini sub missing off titanic

[masraum]

Originally Posted by dad911

One would hope, for their sake. I could also see a scenario where the CF was crackling and his hull monitors going off, but not enough time to climb.

I wonder if there was any sort of black-box/recording of the capsule......

I also wondered if an emergency blow could cause unexpected results, especially if they've identified a possible problem. If increasing pressure is causing a problem and you radically, quickly reduce that pressure, could that also cause a catastrophic failure?

[serene911]

[Baz]

So.....the ENTIRE time (days upon days) of the search........all they had to do is get to the bottom....look around....and they would have found it.

You would think.....SOMEONE would have suggested THAT immediately after the "implosion" sound was detected the morning of the descent.

[serene911]

[Baz]

Presumed human remains found within' wreckage......

https://www.cnn.com/2023/06/28/americas/titan-submersible-debris-st-johns/index.html

[Jim2]

Originally Posted by Baz

So.....the ENTIRE time (days upon days) of the search........all they had to do is get to the bottom....look around....and they would have found it.

You would think.....SOMEONE would have suggested THAT immediately after the "implosion" sound was detected the morning of the descent.

Also no mention of air surfacing, though maybe it went unnoticed.

[Mahler9th]

Pretty sure that we will learn that the identification and then deployment of resources for access to the ocean floor (unmanned/ROV) started pretty quickly after concerns about the Titan became serious.

Once on-site and deployed it apparently did not take long for the discovery of evidence of the implosion.

Of course we already know that other search and rescue efforts were underway pretty quickly.

I imagine that resources to reach that depth are scarce and expensive to deploy, and of course we know it is hard to get to that part of the ocean.

I watched one interview where the person suggested that it might be/is a good practice to have an ROV standing by at the surface, but in an implosion scenario, I wonder how that could help humans in a submersible.

[Por_sha911]

Originally Posted by The Synergizer

Had this been posted yet?
It's interesting as he takes you right up to and into the sub, and this guy seems thankful he did not make it down...

He spent the 1st 12 minutes talking like a tourist and half the video was about his PBJ and cookies. Sub-intellectual selfie.

[Rawknees'Turbo]

Although not conclusive by any means, since there are tarps draped over the end rings, but it's interesting to see that on the visible sections, there are no remnants of the CF tube still glued on.

[masraum]

Originally Posted by Jim2

Also no mention of air surfacing, though maybe it went unnoticed.

I'm pretty sure that a bubble released quite a ways down would probably not be something that you'd notice unless you were looking at the right spot at the right time and expecting it, but I could be wrong.

[A930Rocket]

I don't know the percentage of material recovered, but unlike an explosion, with the implosion create a small debris field?

[A930Rocket]

Originally Posted by Rawknees'Turbo

Although not conclusive by any means, since there are tarps draped over the end rings, but it's interesting to see that on the visible sections, there are no remnants of the CF tube still glued on.

I was expecting to see the end caps with the rings, but saw rings only. Would the caps have blown off the rings?

[LEAKYSEALS951]

Originally Posted by A930Rocket

I don't know the percentage of material recovered, but unlike an explosion, with the implosion create a small debris field?

My hotel 8 analysis would indicate the debri field of an implosion would depend on the depth of said implosion relative to ocean floor.

Sub implodes. Many fragments. Sucked initially inward.
If sub imploded ten feet above ocean floor- small debri field.
If sub imploded way above sea floor, fragments disperse as they will guided by hydrodynamic flow, weight, current, gravity, etc. to end up wherever they end up.

Meaning- the debri field underwater isn't so much a result of explosion/implosion forces, as much as the secondary forces acting on the debri as it sinks to the ocean floor?

[herr_oberst]

Originally Posted by masraum

I'm pretty sure that a bubble released quite a ways down would probably not be something that you'd notice unless you were looking at the right spot at the right time and expecting it, but I could be wrong.

It's going to surface no matter what. Bubbles gonna' bubble. But yeah, I thought the same thing. There was probably a big bubble a few minutes after the com was lost and no one noticed, either because they weren't looking 'there' or the sea was wiggly and frothy.

[Mahler9th]

Perhaps of interest:

https://people.com/friend-titan-sub-victim-wife-tried-help-rescue-7552974


Member of Congress??

Apparently Swalwell.

Over time perhaps facts and timelines will become clear.

Meanwhile RIP and thoughts go out to friends and families of all involved.

[Jolly Amaranto]

I would think that all the air would be collapsed into almost no volume at all at the pressure down there. Maybe even dissolved into the water. I have done a lot of resin casting in RTV silicone molds. I degas the silicone first in a vacuum but even after that, there are still a few bubbles left if not cured under pressure. If I run the pressure up to 80 psi in a modified paint pot and let the RTV cure, any air bubble just vanish. After the RTV has cured the bubbles do not come back. I guess they just diffuse into the RTV. The same with the resin. A properly vented RTV mold will still produce resin parts with bubbles unless cured at 80 psi. The pressure at the Titanic depth is way more than my little paint pot.

[flatbutt]

Just finished watching Cameron's Titanic. He did a great job of capturing the panic and horror of the sinking.

[aigel]

Those Ti rings look as clean as a whistle. I bet the CF tube went. The caps, rings and porthole blew out just like that bottle cap in the above YouTube experiment.

Like others mentioned, in a composite material, I don’t see how acoustic analysis can predict the future behavior of the vessel. There may be stress built up in a single location that lets go without warning and causes a split second chain reaction where the vessel fails.

[otto_kretschmer]

This is in the coulda shoulda woulda realm.

Stockton Rush could/should have built a test cell for a full scale hull.

He wouldn't have needed to test a complete craft; just the CF cylinder with the Ti caps/rings and view port. A steel cylinder welded together with a hemisphere cover bolted on with enough fasteners to take the load.

Test one until it fails and the other cycle to the Titanic's depth for enough times to fully characterize the hull.

[unclebilly]

Originally Posted by Baz

So.....the ENTIRE time (days upon days) of the search........all they had to do is get to the bottom....look around....and they would have found it.

You would think.....SOMEONE would have suggested THAT immediately after the "implosion" sound was detected the morning of the descent.

Baz - you are smarter than this.

The ROVs capable of titanic depths were days away - boats carrying these don’t move fast. If they were presumed alive, they had to search using whatever evidence was available.

They knew that by the time the ROVs could be dispatched, if the hull was intact, the likelihood of survivors was low, so they focused search efforts in other places.