Submarine tour of the Titanic goes missing

[printcraft]

 

[rob63]

Somebody on another board made a comment about all the false signals and noises and crap from the MH370 hunt.

Sadly my guess about the titanium end caps being the most identifiable remains was right, plus that big tail fairing. Not sure on the actual size of the sub debris field but it sounding spread out is consistent with failing at 9000ish feet.

Nothing fails slow at that depth. It went instantaneous. My morbid engineer brain is interested in seeing images of the pressure hull remains, I wonder if there are clues there. Like an intact viewport? I know it was a big focus item, but my suspicion is still a material failure in the carbon fiber or the interfacing.

That's my guess as well. The sad thing being that carbon fiber is used in aerospace, racing, etc. because it has a high strength-to-weight ratio and it is easy to create compound curves with it. Neither of these is necessary in a submersible. The downside to carbon fiber is that, as you point out, the interfacing is a weak point. Something critical in a submersible. It never would have made any sense to anybody with any technical knowledge. Hubris costs lives.

 

[Hoosier Carry]

At least it's people working for their pay.
Better than paying money for people to do nothing.

 

[Cameramonkey]

Maybe they shoulda hired those boring old white dudes after all?

 

[Bugzilla]

I’m assuming this was the maiden voyage. Can’t recall seeing that stated. Another ironic point of this story.

 

[Sigblitz]

I’m assuming this was the maiden voyage. Can’t recall seeing that stated. Another ironic point of this story.

Was it?

 

[Ark]

I’m assuming this was the maiden voyage. Can’t recall seeing that stated. Another ironic point of this story.

No, but close. They took it out last year and had a bunch of problems. I think it only completed a couple of dives to 12000.

 

[BigRed]

I’m assuming this was the maiden voyage. Can’t recall seeing that stated. Another ironic point of this story.

I am not certain that is correct.

 

[Rookie]

Looking back, sub tourist calls himself 'naive' for taking 2021 dive to the Titanic

As an international search determined the implosion of a vessel that disappeared on its way to the underwater wreckage of the Titanic, a man who was one of the submersible company's first customers says a dive he made to the site two years ago was like a suicide mission. Arthur Loibl is a...

apnews.com

 

[Route 45]

Was it?

No. This was its third trip.

Titan passengers share eerie accounts of safety issues on the submersible's past expeditions

Past passengers of the Titan have revealed they suffered communications failures and issues with navigation on their voyages.

www.nbcnews.com

 

[Sigblitz]

No. This was its third trip.

Titan passengers share eerie accounts of safety issues on the submersible's past expeditions

Past passengers of the Titan have revealed they suffered communications failures and issues with navigation on their voyages.

www.nbcnews.com

Thanks, that's what I thought. I was thinking the previous trips stressed it and inspection was lacking.

 

[JEBland]

Air increases in temperature when compressed. The air in the pressure vessel compressed to 1/375th its previous volume and increased in temperature to...a lot.

But, humans are mostly water, and water isn't compressible, so...? I honestly don't know. There's no precedent for this.

The following is a tedious and largely unimportant point: Water does compress, but not very much. One of the introductory physics problems is calculating the pressure at x depth when water has a density of rho(x) away from the surface. For the purposes of running a bass boat on the lake or a pump down 30', water is effectively incompressible. From sea level to deep sea? Totally different scenario.

More to the real point:
I think the weirder thing is what it means to combust in this scenario. Unlike with an engine, there's no supply of oxygen for the combustion. Materials (like fat, bone, water, etc) act differently under extreme pressures and at very cold environmental temperatures. I have no idea how those materials act at those temps and pressures, especially on 1-10 millisecond timescales. Very cold, very high pressure, over very short periods of time breaks all the usual rules.

 

[Cameramonkey]

I wouldnt call it the third trip. From reports, this was the third trip to make it to depth. Lots of other attempts, but were abandoned due to technical issues on the way down.

 

[radar8756]

Haze gray
Deck gray
Equipment gray
Machinery gray
Bulkhead gray
and dozens more

There was the Blue Primer for the Aluminum superstructure ( #117 ? )
then the Haze Grey Final coat

 

[GodFearinGunTotin]

I wonder if Hunter’s plea agreement hadn’t come out this week if this story would have stayed at the top of the news cycle all this time?

 

[WebSnyper]

I imagine that they were dead before they even realized that something was wrong. At least, I hope that is what happened. I don't imagine the event spanned more than a few hundredths of a second.

If they weren't, what are the odds that they beat the Oceangate CEO to death with a PS5 controller before the air ran out?

 

[printcraft]

 

[GodFearinGunTotin]

I mean…he’s not completely wrong. The tricky part is where that line is.

 

[actaeon277]

I think that statement is correct.
Nothing wrong with it.
But... it's predicated on the "there is a limit".
You have to do things safe, make things safe.
Cause one day, it may not be safe, and you need all your sh*t to work.

 

[walkercolt]

Sad News.

I knew that the odds were against it, but I kept following the story hoping for a rescue.