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Titanic tourist submersible goes missing with search under way

bbc.com

71–80 of 649 posts

Re: Titanic tourist submersible goes missing with search under way

#71
post #5

I had no idea that "tourists" visited Titanic. Is this the new thing after Everest became crowded?

[flagged]

There is more to life than safetyism.

Of course the risks were considered.

There is absolutely no need for the arbitrary hostility.

Re: Titanic tourist submersible goes missing with search under way

#72

Skimming the website, I assume this submersible is using electromagnetically attached drop-weights so that if anything goes wrong and power is lost, the weights drop off and the submersible floats up to the surface again? And 96 hours of life support sounds good, but unless there is another submersible nearby that can dive down, find them AND attach a line, the number of hours of life support will be irrelevant. Of c…

> mercilessly quickly mercifully quickly?

Thanks, fixed.

Re: Titanic tourist submersible goes missing with search under way

#73
post #58

Earlier quoted context omitted.

I wonder if they award multiple Darwin awards at once?

I don't think it's stupid to expect that submersibles are well-engineered. I'd also imagine that the tourists trusted the reputation of the operator. Both the state of the equipment and that their safety checks and processes were stringent. Especially since they claimed to aid in the science. There aren't many priors for civilian submarine disasters.

I'm not sure there's any particular reason to think that this is an extraordinarily dangerous activity relative to things like mountain climbing--even on many less extreme peaks.

Re: Titanic tourist submersible goes missing with search under way

#75
post #22

Earlier quoted context omitted.

Is there the option of a one way ticket? Do they drop you off in the wreck of the Titanic and leave you there?

Maybe it's for if you want rescuing from the wreck.

"Goliath Awaits is a 1981 American made-for-television action adventure science fiction thriller... about an ocean liner sunk by a German U-boat in 1939 whose wreck is discovered in 1981, with over 300 survivors and their descendants living in an air bubble inside the ship."[1]

Watched it as a kid, and it definitely stuck in my head. Quite impressive cast.

1. https://en.wikipedia.org/wiki/Goliath_Awaits

Re: Titanic tourist submersible goes missing with search under way

#76
post #61
post #30

This appears to be the vessel in question: https://oceangate.com/our-subs/titan-submersible.html Pressure hull made from titanium and carbon fiber, capable of diving to 4000m (13,000 ft). I recall that one reason SpaceX switched from carbon fiber to stainless steel pressure vessels (fuel tanks) was the difficulty of detecting structural flaws. Can any engineers comment on whether that task is easier for a vessel expo…

> 13,000 ft titanic is at about 12500, according to wkikipedia - a bit close?

Given that it's named the "Titan" and described as "the world's only privately owned manned-submersible capable of reaching Titanic depths of 4000 meters" [1] I suspect this was designed with the Titanic in mind.

You would hope that would include a substantial safety margin.

[1] https://www.youtube.com/watch?v=vNHXqOUtxgw

Re: Titanic tourist submersible goes missing with search under way

#77

Earlier quoted context omitted.

Two way ticket ..

Is there the option of a one way ticket? Do they drop you off in the wreck of the Titanic and leave you there?

It seems that they just did that.

We'd have to look at the details of the contract to see if half of the ticket price is refunded in the event that they bring you to the Titanic but don't bring you back to the surface.

Re: Titanic tourist submersible goes missing with search under way

#78
post #73
post #58

Earlier quoted context omitted.

I don't think it's stupid to expect that submersibles are well-engineered. I'd also imagine that the tourists trusted the reputation of the operator. Both the state of the equipment and that their safety checks and processes were stringent. Especially since they claimed to aid in the science. There aren't many priors for civilian submarine disasters.

I'm not sure there's any particular reason to think that this is an extraordinarily dangerous activity relative to things like mountain climbing--even on many less extreme peaks.

I don't see any reason to think why it isn't. Unless you don't have a basic understanding about the most primitive laws of physics. Even the slightest mishap at that depth and you're in more trouble than you would be if you were stranded on the ISS.

Re: Titanic tourist submersible goes missing with search under way

#79
post #58

Earlier quoted context omitted.

I wonder if they award multiple Darwin awards at once?

I don't think it's stupid to expect that submersibles are well-engineered. I'd also imagine that the tourists trusted the reputation of the operator. Both the state of the equipment and that their safety checks and processes were stringent. Especially since they claimed to aid in the science. There aren't many priors for civilian submarine disasters.

That's mostly because there aren't any civilian submarines worth speaking off (coke cartels don't typically go visit the Titanic).

Seriously: this is off the charts dangerous, the reputation of the operator is as good as their last dive.

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