Titanic tourist sub missing

[Foster Zygote]

I have heard the term "pink mist" with reference to humans crushed by deep water pressures. What happens if there is the slightest crack at those pressure, is that the water rushes in and fills the available space instantaneously.

A short story to give you some idea how this works. When I was still in the RNZAF a co-worker of mine working with me on a hydraulic actuator in a C-130 saw a small red drop of hydraulic fluid sitting on an aluminium pipe carrying hydraulic fluid under 3,000 psi pressure, Before I could stop him, he wiped the tip of his index finger across the droplet - and his fingertip was sliced off clean, right behind the fingernail. There had been a microscopic hole in the aluminium pipe, and an extremely fine jet of hydraulic flight was spurting out.

I knew a USAF veteran pilot who flew B-52s. He said the worst part of his AF career had been his time in a nuclear missile silo during the Cuban missile crisis (and he'd dodged flying telephone poles during Linebacker missions over Vietnam). He told of a time when they detected a pinhole leak in a fuel storage tank for either a Titan or an Atlas. They couldn't see it, but they could hear it. When the technicians arrived, another officer said, "it's over here somewhere", and waved his hand over the tank in the general area, and lost the tips of two fingers.

Mercifully, it seems virtually impossible that the destruction of the Titan submersible was anything other than instantaneous.

 

[Foster Zygote]

Possibly teeth.

That was my thought as well. But it seems like dental records should be able to help in that regard. It could also be bone fragments.

 

[Skeptical Greg]

Why bother with a DNA test? There does not seem to be any dispute about who died on that sub.

To see if it is human rather than some one's baloney sandwich.
It's not a matter of settling a dispute, it's a matter of determining what has been found.

Frankly, I think the whole recovery thing is a big waste of money.

It's not like it's a matter of " What can we do to make Titan II more safe than Titan 1. "

 

[jeremyp]

That was my thought as well. But it seems like dental records should be able to help in that regard. It could also be bone fragments.

I was assuming they would maybe find some individual teeth or fragments thereof. Dental records wouldn't help, but there is DNA in teeth.

 

[jeremyp]

To see if it is human rather than some one's baloney sandwich.
It's not a matter of settling a dispute, it's a matter of determining what has been found.

Frankly, I think the whole recovery thing is a big waste of money.

It's not like it's a matter of " What can we do to make Titan II more safe than Titan 1. "

Closure for the bereaved, evidence for the lawyers.

 

[Steve]

To check for possible stowaways? Geesh. Do try and keep up.

Seems the most likely reason .

 

[dudalb]

Why bother with a DNA test? There does not seem to be any dispute about who died on that sub.

To legally establish who the corpses were.
I know it is silly, but then, as Dickens said "The Law Is An Ass".

 

[bruto]

To legally establish who the corpses were.
I know it is silly, but then, as Dickens said "The Law Is An Ass".

I think it's actually "a" ass rather than "an ass." But yest it is, and so, I think, is anyone who worries that the burial of the scant remains of their relative might accidentally include a piece of their baloney sandwich. For all intents and purposes they were buried at sea, and any grave above ground is a cenotaph anyway.

 

[Marcus]

The Last Descent


I know we've all read articles about this event but I thought this was an interesting one.


https://archive.vanityfair.com/arti...tyfair.com/article/2023/10/1/the-last-descent

 

[Skeptical Greg]

Good article.

I hadn't seen this before:

IN DECEMBER 2015, two years before the Titan was built, Rush had lowered a one-third scale model of his 4,000-meter sub-to-be into a pressure chamber and watched it implode at 4,000 psi, a pressure equivalent to only 2,740 meters.

Then:

He ( Rush ) might have changed course then, stood back and reconsidered. Instead, OceanGate issued a press release stating that the test had been a resounding success because it "demonstrates that the benefits of carbon fiber are real."

This is laughable:

OceanGate would rely on "acoustic monitoring"— sensors on the Titan's hull that would emit an alarm when the carbon fiber filaments were audibly breaking.

 

[Gord_in_Toronto]

Good article.

I hadn't seen this before:



Then:


This is laughable:

OceanGate would rely on "acoustic monitoring"— sensors on the Titan's hull that would emit an alarm when the carbon fiber filaments were audibly breaking.:

I've always thought that might just give someone to say "Oh. Shi. . . ".

 

[Puppycow]

The Last Descent
https://archive.vanityfair.com/arti...tyfair.com/article/2023/10/1/the-last-descent

The part about the earlier dive to the Andrea Doria was quite interesting. A bit too long to quote, but it shows another example of Rush's arrogance and incompetence.

 

[catsmate]

I have heard the term "pink mist" with reference to humans crushed by deep water pressures. What happens if there is the slightest crack at those pressure, is that the water rushes in and fills the available space instantaneously.

A short story to give you some idea how this works. When I was still in the RNZAF a co-worker of mine working with me on a hydraulic actuator in a C-130 saw a small red drop of hydraulic fluid sitting on an aluminium pipe carrying hydraulic fluid under 3,000 psi pressure, Before I could stop him, he wiped the tip of his index finger across the droplet - and his fingertip was sliced off clean, right behind the fingernail. There had been a microscopic hole in the aluminium pipe, and an extremely fine jet of hydraulic flight was spurting out.

That reminds me of water-jet cutters, slicing through steel.

 

[Steve]

That reminds me of water-jet cutters, slicing through steel.

Yup. If they happened to get a few water jets through pinhole leaks before the main implosion that would have been most unpleasant for the occupants.

 

[Marcus]

Rush didn't need all that silly certification, because he had advanced technology they wouldn't understand, like the acoustic sensors. The actual sounds emitted by the hull were so loud that hearing protection would be more appropriate than amplification.

 

[The Man]

Rush didn't need all that silly certification, because he had advanced technology they wouldn't understand, like the acoustic sensors. The actual sounds emitted by the hull were so loud that hearing protection would be more appropriate than amplification.

Ya know when I first heard about the acoustic sensors I thought 'Hey that's pretty smart, you can hear the layers starting to rub against each other perhaps indicating the start of some delamination'. However, in the recent linked article the salesperson is extolling the sensors as detecting carbon fiber strands breaking. First (as you note) that's got to sound like the Blaster beam^WP inside the thing and not only is it looking to close the door after the cows have already got out it is them stampeding back in and smashing the door.

ETA:

 

[jeremyp]

Ya know when I first heard about the acoustic sensors I thought 'Hey that's pretty smart, you can hear the layers starting to rub against each other perhaps indicating the start of some delamination'. However, in the recent linked article the salesperson is extolling the sensors as detecting carbon fiber strands breaking. First (as you note) that's got to sound like the Blaster beam^WP inside the thing and not only is it looking to close the door after the cows have already got out it is them stampeding back in and smashing the door.

ETA:

One submarine guy who went down on one of the early test dives described the noises as more like gunshots.

 

[Foster Zygote]

The part about the earlier dive to the Andrea Doria was quite interesting. A bit too long to quote, but it shows another example of Rush's arrogance and incompetence.

That part removes almost all doubt I have about him having been a complete ******* behind the wheel of a car.

 

[The Man]

The part about the earlier dive to the Andrea Doria was quite interesting. A bit too long to quote, but it shows another example of Rush's arrogance and incompetence.

That part removes almost all doubt I have about him having been a complete ******* behind the wheel of a car.

Not only that, but after being behind the wheel of a car and crashing it (in a diving aspect) but coming out and saying 'What? We were just looking at how automobile wreckers work for 4 hours’.

The man is (well, was) beyond despicable; the sadness is that he took other people with him because of his despicable arrogance.

 

[The Man]

One submarine guy who went down on one of the early test dives described the noises as more like gunshots.

Yep, CF strands breaking, lucky they came up. For that application, by the time you hear it (even with audio sensors), it can already be too late. Failure has already started and it can only take microseconds to be catastrophic.