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Debris found came from missing Titan sub, says friend of passengers

bbc.com

531–540 of 1001 posts

Re: Debris found came from missing Titan sub, says friend of passengers

#531

Earlier quoted context omitted.

[flagged]

You’re just looking for outrage where there is none.

Regarding drowning people in the Mediteranian and eslewhere, yes, there should be more, and constant, outrage. It says a lot about Western society that there isn't, that it doesn't even really make the news anymore...

Re: Debris found came from missing Titan sub, says friend of passengers

#532

Earlier quoted context omitted.

Power loss is a real stretch to happen at the same time of communications, I understand that the coms to fail is a non-zero chance of failing, it happens. A transponder is super rare on it's own, but when they both go at the same time, protocol dictates you declare an emergency straight await (the top-side cnc). Not that it would have made a difference, but they certainly would have told the coast guard all of this.…

Comms need power...

Yes indeed, but the transponder itself is a self-powered device, they are battery powered when needed and those batteries are usually no joke from the ones I've encountered, as it should be. Specific times I'm not sure. I'll link one I have worked extensively with. They are designed to be extremely fault tolerant with a lot of redundancy and fail safes.

It's genuinely extremely hard to not notice it losing power.

V5 https://www.sonardyne.com/wp-content/uploads/2021/07/Sonardy...

Edit: Battery Life (Listening, Disabled) 417 days (Lithium) 417 days (Lithium)

It's actually longer than I even imagined. And this is an old version I believe.

Re: Debris found came from missing Titan sub, says friend of passengers

#533
post #422

Anyone know what happens to the body when suddenly exposed to a biblical amount of pressure? I'm morbidly curious about what state the bodies would be in.

Mythbusters Pig Diving Suit pretty much explains what happens. Its gross.

Re: Debris found came from missing Titan sub, says friend of passengers

#534
post #483
post #454

Earlier quoted context omitted.

It is less about the media but more about the response of officials. How many boats were send to look for a single submarine? All the way from the France? When they could have been sent to Mediterranean sea as well.

How many boats are sent international if a fishing boat outside Thailand or Norway don't return home? What if a old transport ship goes missing in a storm? Occasionally we can see here on HN stories about lost sailors being rescued after weeks lost in the water, or shipwrecked on some remote rock. The common theme for those stories is that there wasn't a bunch of ships that went looking for them for weeks. For every…

> How many boats are sent international if a fishing boat outside Thailand or Norway don't return home? What if a old transport ship goes missing in a storm?

The problem is that there's no immediate feedback when they go missing so the search areas are too pointlessly large to even attempt SAR operations. Areas where there's lots of immigration traffic are always monitored, like the Greeks were monitoring the boat before it capsized (enough to get that aerial photo of the overcrowded decks).

The vast majority of Coast Guards aren't stretched to their limits, they're sitting there ready to launch SAR operations if anyone calls, all largely operating for free as a cheap way of supporting maritime trade. The USCG alone responds to tens of thousands of cases a year, rescuing thousands of people. Some corrupt nations skimp on their CGs but that wasn't really the case here.

Re: Debris found came from missing Titan sub, says friend of passengers

#535

What really bothers me about the coverage of this, and I'm not totally anti media etc, was that nobody mentioned on the fact that the tracking system lost contact also. It was only mentioned that the communications was lost, if there had of been media mentioning that the tracking device also lost contact, I think a lot of people would have recognised straight await that it was a critical collapse. No deep gauge devic…

Based on accounts of previous voyages it didn't sound like it had a tracking system. They relied on text communication with a ship topside for navigation (and got lost for several hours on a past voyage - while still in communication with the operators).

Re: Debris found came from missing Titan sub, says friend of passengers

#536
post #258

Earlier quoted context omitted.

"Two months later, OceanGate faced similarly dire calls from more than three dozen people — industry leaders, deep-sea explorers and oceanographers — who warned in a letter to its chief executive, Stockton Rush, that the company’s “experimental” approach and its decision to forgo a traditional assessment could lead to potentially “catastrophic” problems with the Titanic mission." https://www.nytimes.com/2023/06/20/us…

I don't understand why they didn't just drop it to the bottom of the ocean without people hundred times to see if it still holds. Who experiments with a crew in the age of remote control sensors and computers?

I think they just didn't think there hull design would implode. In there minds the worst case is, they're stuck in deep ocean for a few hours until the backup dissolvable weights fall off and they pop back up to the surface (and then hopefully located).

From what I've read, in there minds there hull design was the best part of the sub. I inclined to believe he believed it, since the CEO frequently dove in it.

Re: Debris found came from missing Titan sub, says friend of passengers

#537
post #457

Earlier quoted context omitted.

I think the migrant boat disaster is horrible. But I was more interested in this missing sub because it was a bit mysterious what happened to it initially. Then it all comes out how badly built it is, how it's a death trap, etc. It's just more interesting personally. It doesn't mean it's worse than the migrant boat, it's just more interesting and I'd rather read about it. Mysterious cases always get more traction on…

Do you have any details about why it was a death trap? I watched one video that complained about off the shelf parts being used, but the two examples was an RV light (not safety related) and the gaming controller (which they had multiple back ups). They also claimed to have been reviewed by Boeing and University of Washington. There was 7 different mechanisms that could force a return. Some of those were purely mecha…

Boeing denies any involvement while the University of Washington says they briefly worked together on a completely different unmanned vehicle

Re: Debris found came from missing Titan sub, says friend of passengers

#538
post #510

Earlier quoted context omitted.

At that depth, the pressure is quite intense - around 6000 psi. That means 6000 pounds pr square inch - that's almost a Ford F150 truck pr square inch, everywhere. And now imagine how many square inches the surface area of a human is - especially your upper torso where your lungs are located. The sub (hull) is made of a carbon fiber and titanium mix - and I'm not sure how that would react, if it buckles / collapses l…

What if the impassion happened higher towards the surface, like, 2000 feet?

So let's say that they by some miracle survive implosion without getting knocked out, and have lungs full of air - well, that air would still compress by a huge amount. And with negative buoyancy, they would sink. Pressure at 2000 feet is still a bit over 400 PSI.

Re: Debris found came from missing Titan sub, says friend of passengers

#539
post #457

Earlier quoted context omitted.

Do you have any details about why it was a death trap? I watched one video that complained about off the shelf parts being used, but the two examples was an RV light (not safety related) and the gaming controller (which they had multiple back ups). They also claimed to have been reviewed by Boeing and University of Washington. There was 7 different mechanisms that could force a return. Some of those were purely mecha…

What I learned so far: porthole not rated for the depth of the Titanic, apparently no testing done on the balast release mechanisms, screens screwed directly into the carbon fibre hull, flammable interior materials, mixing three materials in pressure vessel (carbon fibre tube, titanium end bulk jeads, transparent port hole). All more or less untested and uncertified. Throw in the reported comms issues that were commo…

And everyone onboard was rich enough to get an independent to do some due diligence

Re: Debris found came from missing Titan sub, says friend of passengers

#540
post #483
post #454

Earlier quoted context omitted.

It is less about the media but more about the response of officials. How many boats were send to look for a single submarine? All the way from the France? When they could have been sent to Mediterranean sea as well.

How many boats are sent international if a fishing boat outside Thailand or Norway don't return home? What if a old transport ship goes missing in a storm? Occasionally we can see here on HN stories about lost sailors being rescued after weeks lost in the water, or shipwrecked on some remote rock. The common theme for those stories is that there wasn't a bunch of ships that went looking for them for weeks. For every…

There is a difference between litterally sending multiple Navies (A), sending whatever SAR assets there are (B) and actively preventing and even prosecuting private SAR assets trying to stage their own rescue ops (C).

The Titan was A, your average fishing boat or other vessel is B. And all those migrants are, and that pisses me off to an incredible degree, C.

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