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So, you turn diving down to the Titanic into a tourist business..what could go wrong?

This from the BBC:

When a submarine hull collapses, it moves inward at about 1,500mph (2,414km/h) - that's 2,200ft (671m) per second, says Dave Corley, a former US nuclear submarine officer.
The time required for complete collapse is about one millisecond, or one thousandth of a second.
A human brain responds instinctually to a stimulus at about 25 milliseconds, Mr Corley says. Human rational response - from sensing to acting - is believed to be at best 150 milliseconds.
The air inside a sub has a fairly high concentration of hydrocarbon vapours.
When the hull collapses, the air auto-ignites and an explosion follows the initial rapid implosion, Mr Corley says.
Human bodies incinerate and are turned to ash and dust instantly.

Just wow. Those poor souls didn't stand a chance.
 
Sadly, they knew it was coming and began dumping ballast. Thankfully they never knew it when it happened.
 
Seems unpossible to turn to ash in one millisecond, but it actually sounds like one of the best possible deaths.
 
Whether turned to ash or not, those people were sufficiently obliterated to not even know when it happened. It does sound like they knew they were in trouble though.
 
ThumperX said:
Sadly, they knew it was coming and began dumping ballast. Thankfully they never knew it when it happened.
Click to expand...

How do they figure that the vessel was dropping ballast before the incident? Would it not also have been detached when the hull imploded?
 
Primarily the skids were dropped, had they been attached at the time of this implosion they would have been twisted beyond recognition.
 
900ss said:
This from the BBC:

When a submarine hull collapses, it moves inward at about 1,500mph (2,414km/h) - that's 2,200ft (671m) per second, says Dave Corley, a former US nuclear submarine officer.
The time required for complete collapse is about one millisecond, or one thousandth of a second.
A human brain responds instinctually to a stimulus at about 25 milliseconds, Mr Corley says. Human rational response - from sensing to acting - is believed to be at best 150 milliseconds.
The air inside a sub has a fairly high concentration of hydrocarbon vapours.
When the hull collapses, the air auto-ignites and an explosion follows the initial rapid implosion, Mr Corley says.
Human bodies incinerate and are turned to ash and dust instantly.

Just wow. Those poor souls didn't stand a chance.
Click to expand...

Agreed with everything except that sub hulls would collapse at far lesser depths than 12,000 feet, so the actual crush time would be even shorter. Agreed on the ignition event.

The pain signals move as slow as 7 feet per second. You can check that by touching a hot pan. You can see and feel your finger touch, but the pain comes with a bit of a delay. Visual nerves signals are faster but still in low digit fps. They literally had no idea that this was happening, they just vaporized before anyone on the sub even knew it happened.

Same thing at the WTC. Those passengers knew something was wrong, but would not have felt any pain.
 
Got this from my YouTube feed. Pretty good summary of the the Titan submersible design and operations and thus exposing its flaws in this YouTuber's views. Now watching a documentary about the USS Thresher. Not an expert but found this video interesting.

[YOUTUBE]odLJ0dSLxmc[/YOUTUBE]
 
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Saw that the last comm from the Titan reported popping sounds and dropping of chassis (likely to prepare to surface). Then the comms went out simultaneous with the Naval detection of sound. A former passenger said the comms went out on each of 4 dives, one dive made it to the Titanic. They used texting on a cell for communication.
 
900ss said:
This from the BBC:

When a submarine hull collapses, it moves inward at about 1,500mph (2,414km/h) - that's 2,200ft (671m) per second, says Dave Corley, a former US nuclear submarine officer.
The time required for complete collapse is about one millisecond, or one thousandth of a second.
A human brain responds instinctually to a stimulus at about 25 milliseconds, Mr Corley says. Human rational response - from sensing to acting - is believed to be at best 150 milliseconds.
The air inside a sub has a fairly high concentration of hydrocarbon vapours.
When the hull collapses, the air auto-ignites and an explosion follows the initial rapid implosion, Mr Corley says.
Human bodies incinerate and are turned to ash and dust instantly.

Just wow. Those poor souls didn't stand a chance.
Click to expand...

of note here too, is that the hull is also combustible in the case of the Titan. i handn't really thought of that before.
 
auntiebling said:
it's compression ignition, so probably falls under diesel regulations
Click to expand...

So....

How long before an enterprising company decides to try using the massive pressure available underwater to instantly turn organic material into oil?
 
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