Titanic submersible confirmed destroyed with loss of all five souls onboard.

Feek said:
Just heard this on the wireless and had to go away and read up on it, they've been out of contact for what, eight hours now? Surely this isn't going to end well :(
Click to expand...
If the vessel buoyancy failed and they went down, that is not a nice way to go.

Would have been over quick if it was a rupture though.
 
Last edited:
Jokester said:
96 hours of life support apparently, could be a really slow death if they don't find it quick and get a line down to it to hoist it up again.
Click to expand...
As they've lost it, it would be exceptionally difficult to locate it, especially amongst existing debris field. The vessel is only a few meters long I think.

Then they would have to get a line down and attach it somehow.

They may not even know if its in one piece, if no comms.

Horrible.
 
Freakbro said:
I was wondering what size it would have been crushed down to if it has imploded - though not sure it would react like I'm imagining, but the pressures down there are staggering

A car crusher exerts about 2000 psi, at the depth of the Titanic it's 6000 psi :eek:

Some grisly reading here on the effects of a submarine getting crushed

www.quora.com

When a submarine exceeds its crush depth and the crew is killed, are they squished flat? Do they die instantaneously due to the pressure?...

Answer (1 of 13): When a submarine “crushes”, it can happen in a variety of ways. In the case of the USS Scorpion, there were two hydrogen explosions in the battery well at 18:20 GMT (22 May, 1968) that created an internal overpressure of 150 - 200 psi. These explosions were not strong enough to...
www.quora.com www.quora.com
Click to expand...


The only thing that article doesn't mention is a slow leak. This would allow the pressure to increase inside the vessel as the leak slowly filled the vessel with water. It would also simultaneously reduce the buoyancy potential of the vessel. At the equivalent of 60ish metres internal pressure, 21% oxygen in air becomes toxic so the crew would start to convulse and die that way. Then the vessel continues to fill slowly and sinks to the bottom in one piece.
 
Raymond Lin said:
Any kind of weakness in that depth would create an immediate implosion. There is no such a thing as slow leak under such pressure.
Click to expand...

Maybe. The vessel is quite small, and made of carbon fibre I believe, not metal? It could be possible for it to fail in a way that doesn't immediately implode it. Even if it only takes a few minutes to fill, you'd know it was coming.
 
There has not been any info on these dissolvable ballast weights as far as I can see?

If they are alive (banging heard) then how long till these weights dissolve and they start to come up on their own (assuming they are not snagged)?
 
Last edited:
Feek said:
I don't think there is, it's one thing being able to get down there in another craft but a completely different ballgame to be able to raise something of that size and weight.
Click to expand...

The weight in the water will be lower than the vessels actual mass because of the buoyancy effect, assuming it isn't full of water.

It is designed to be almost neutrally buoyant, slightly negative probably to descend.

I'm guessing on the actual number but the weight that would be felt on a line might only be a fraction of the vessels actual mass, maybe as low as 5% of it.
 
Last edited:
This is a video of a vessel collapse at less than 1 atmosphere of pressure differential. The pressure difference on the sub at 3000m would have been 300 atmospheres.

youtu.be

Buckling of a Rail Car Tank Under External Pressure

This video shows the folly of an inadequate design and/or incorrect operating procedures. Apparently the rail car tank had been 'steamed out' and it was very...
youtu.be youtu.be
 
Bassmansam said:
So this would be a better way to die than being eaten by a shark right?
Click to expand...

There is no better way to die is there really.

But I suppose the worry of death comes from the empathy element of it. We mentally put ourselves in the mind of the individual dying, but with the knowledge of how they died.

In this case the crew would have likely had no knowledge of it, but that is hard to imagine so I think most people would slow the event down in their minds and think you would feel it somehow.
 
steve_c said:
We don't actually know when the implosion occurred though. I mean it's possible they were there at the bottom for a day or so without power while the hull integrity slowly diminished.

No chance of ever knowing I guess.
Click to expand...

Unlikely though, it most likely happened at the instant contact was lost.


Anyone know about this documentary, just seems to be a quiz show on 5.
 
mrk said:
The byford dolphin bell incident was a pressure differential from 1 to 9 atmospheres and that caused the crew to be sucked through a small hole sideways, the guy's organs got sucked through leaving only some parts of spine across the chamber.

1-9 atmospheres caused that and their blood boiled at the same time due to the heat generated by the pressure.
Click to expand...

That was a rapid decompression incident though wasn't it? The blood boiling would have been like opening a bottle of pop, due to gasses coming out of solution, rather than a heat thing. Whereas this incident would have been a rapid compression.
 
Last edited:
FoxEye said:
The actual implosion is isntantaneous.

The question is, did they have any kind of advanced warning, from the sensors we know were on the hull, that something was wrong, before the implosion event.

If they were trying to make an emergency ascent, which is the theory from Cameron and others, then they knew something was wrong.
Click to expand...

The actual operation of the vessel has not been made clear really. I read a few days ago that the vessel dropped it's weights at the bottom of the descent to become neutrally buoyant for the actual manoeuvring around the wreck. Im not sure if it then has to drop more weights for ascent.

So if this is true it could be the routine weight drop they are seeing?
 
You must log in or register to reply here.
Back
Top Bottom