This tiny submarine 2.4 miles under the sea, visiting the relics of RMS Titanic. Can it be found and the crew saved before the air runs out?

[Rocky]

That Leonardo guy didn't make it either. 😒

Good…..I’ve never liked him

 

[Dogtrousers]

Good…..I’ve never liked him

Pretty good painter though

 

[Alex321]

Very commendable, but it's hard to see the relevance to OceanGate's mission.

That part of the discussion was questioning who would be responsible for regulating any attempts to reach the Titanic.

 

[Jameshow]

That part of the discussion was questioning who would be responsible for regulating any attempts to reach the Titanic.

Two aspects tbh.

1) should the sub be certified by a inspection regime? Esp as it's not cutting edge anymore - more cutting corners... ( Triton?? sub goes deeper)

2) should the site be regulated?
Like Everest Stonehenge pyramids etc??

 

[Bonefish Blues]

Two aspects tbh.

1) should the sub be certified by a inspection regime? Esp as it's not cutting edge anymore - more cutting corners... ( Triton?? sub goes deeper)

2) should the site be regulated?
Like Everest Stonehenge pyramids etc??

On 1. It was the only craft of its kind operating uncertified in the world, that is, taking paying passengers underwater. I really don't think that anyone envisaged that anybody would operate like that, never mind go down 3800mtrs. I expect that omission will be closed, probably unnecessarily as nobody would operate without one.

 

[Jameshow]

On 1. It was the only craft of its kind operating uncertified in the world, that is, taking paying passengers underwater. I really don't think that anyone envisaged that anybody would operate like that, never mind go down 3800mtrs. I expect that omission will be closed, probably unnecessarily as nobody would operate without one.

Where those duck mobiles certified I doubt it!

Grey area too....

https://en.m.wikipedia.org/wiki/Duck_tour#:~:text=On March 30, 2013 a,the vehicle began to sink.

 

[Drago]

Word is from James Cameron, who is networked into various folk involved in the seerch, that the carbon fibre cylinder section of hull had shattered - little surprised there - and for the most part is piled up inside one of the Ti hemispheres. This suggests it perhaps imploded along its axis like an accordion rather than a coke can being squeezed in the middle.

Its also being suggested by Cameron that the vessel had dumped its ballast so the crew might have had a second or so warning from the inbuilt strain gauges and had punched the button to emergency ascend. A second or two later, kerblammo!

It would seem CF has been experimented with by others on submersible and the repeated pressurisation-depressurisation cycles cause cumulative damage. Quite a bit of interesting history coming to light as people are speaking to the media.

 

[Profpointy]

I was going to watch that movie tonight……now you’ve ruined it for me

But Kate Winslet does get her kit off

 

[Bonefish Blues]

Where those duck mobiles certified I doubt it!

Grey area too....

https://en.m.wikipedia.org/wiki/Duck_tour#:~:text=On March 30, 2013 a,the vehicle began to sink.

Underwater

 

[Seevio]

Today I found out that the principle that makes diesel engines work also applies to other hydrocarbons. i.e. If the pressure and temperature are high enough, anything carbon based will instantly combust. Given the pressure was over 30MPa and the temperature would briefly have been in the thousands of K, I don't think there will be any remains to be recovered.

 

[DaveReading]

That part of the discussion was questioning who would be responsible for regulating any attempts to reach the Titanic.

The regulation that the treaty provides for appears to relate to granting (or not) licences to enter the wreck and remove items from it. I can't see any reference to regulating viewing of the wreck, which was the sole purpose of OceanGate's mission - unless I've missed something.

 

[glasgowcyclist]

Underwater

And has the impressive skill of being able to hold her breath for well over 7 minutes.

 

[Drago]

And has the impressive skill of being able to hold her breath for well over 7 minutes.

You got her phone number?

 

[Jameshow]

But Kate Winslet does get her kit off

At which point ...asking for a freind...!🤣

 

[Reynard]

Word is from James Cameron, who is networked into various folk involved in the seerch, that the carbon fibre cylinder section of hull had shattered - little surprised there - and for the most part is piled up inside one of the Ti hemispheres. This suggests it perhaps imploded along its axis like an accordion rather than a coke can being squeezed in the middle.

Its also being suggested by Cameron that the vessel had dumped its ballast so the crew might have had a second or so warning from the inbuilt strain gauges and had punched the button to emergency ascend. A second or two later, kerblammo!

It would seem CF has been experimented with by others on submersible and the repeated pressurisation-depressurisation cycles cause cumulative damage. Quite a bit of interesting history coming to light as people are speaking to the media.

I already mentioned upthread about the CFRP failure mechanisms due to cyclic loading and how one small fault (air bubble) can cause delamination to propagate through the structure. But if the above is indeed true, then it also points to the possibility of bad design in the actual layup of the cylinder, and a very poor understanding of how the loads are applied to the structure.

In other words, some numpty has thought that they know better than established engineering practice (some of this stuff is first year undergraduate material) and hard data garnered from many, many decades of working with fibre composites across different applications.