Wreckage of Oceangate submersible found

[Red Squirrel]

Maybe this is old news.... but first time I see footage of the actual wreckage. Looks like it probably failed at one of the seams between the dome and carbon fibre hull. The video that shows them glueing it together always felt odd to me, there is no real control as to how the glue is applied and I would expect that process to be critical enough to warrant automating it so it's a very consistent and controlled amount, and applied fast so the end can be put on asap before it starts to cure.

Scott Manley video with more analysis:

 

[dave_the_nerd]

You don't normally automate a process you're only going to do once or twice: doing things by hand can be surprisingly consistent and precise. (Isn't always done that way but it can be.)

You didn't miss the footage, it was just released within the last week; the coast guard is doing a hearing/report this week and this stuff AFAIK wasn't public before.

 

[Stiff Clamp]

In glue we trust.

These days "bonding" is the new welding (new sewing, new whatever) products are increasingly bonded together.

(not that they could weld carbon fiber to titanium or anything)

 

[dave_the_nerd]

 

[SteveGrabowski]

You have to wonder why they didn't test this sub with poor people first.

 

[dave_the_nerd]

You have to wonder why they didn't test this sub with poor people first.

Poor people don't trust rich people just because they're rich.

 

[SteveGrabowski]

Poor people don't trust rich people just because they're rich.

Disagree, see 2016, 2020, 2024 elections

 

[Red Squirrel]

They probably should have cycle tested it more at least, send it down and up continuously for like a whole month. This would help cycle everything to make sure it's good. Can put sensors etc to check if anything changes/shifts out of norm.

Then build another with exact same specifications. Rinse and repeat until the process is deemed perfected. It's not like this was a $20 side attraction at a theme park it was 100's of thousands of dollars for a ticket, they could afford to be more diligent.

 

[lxskllr]

I don't trust carbon fiber for anything important. You use that when you need the lightest material, and failure is merely a nuisance, not deadly.

 

[dave_the_nerd]

They probably should have cycle tested it more at least, send it down and up continuously for like a whole month. This would help cycle everything to make sure it's good. Can put sensors etc to check if anything changes/shifts out of norm.

Then build another with exact same specifications. Rinse and repeat until the process is deemed perfected. It's not like this was a $20 side attraction at a theme park it was 100's of thousands of dollars for a ticket, they could afford to be more diligent.

Yes they could have been much more diligent. The CEO fired anybody who told him that. And now he’s dead. Hooray?

Also the submersible had been in use for a couple years already.

 

[Torn Mind]

They probably should have cycle tested it more at least, send it down and up continuously for like a whole month. This would help cycle everything to make sure it's good. Can put sensors etc to check if anything changes/shifts out of norm.

Then build another with exact same specifications. Rinse and repeat until the process is deemed perfected. It's not like this was a $20 side attraction at a theme park it was 100's of thousands of dollars for a ticket, they could afford to be more diligent.

Economic considerations and bills outweigh safety in certain realms of commerce and at certain points in a organization's life cycle.

Some things are paid for in blood, i.e car starter motors, seat belts, and Volvo. Safety is reactive and arises after enough shit happens.

 

[Ken g6]

I don't trust carbon fiber for anything important. You use that when you need the lightest material, and failure is merely a nuisance, not deadly.

Diving to the bottom of the ocean should only be done by someone with, if not balls of steel, at least hemispheres.

 

[Red Squirrel]

If the balls are perfectly round, and ideally not made of carbon fibre, they would be rather optimized for deep sea diving too.

 

[sdifox]

Diving to the bottom of the ocean should only be done by someone with, if not balls of steel, at least hemispheres.

Millionaires and billionaires. We got plenty to spare.

 

[dave_the_nerd]

If the balls are perfectly round, and ideally not made of carbon fibre, they would be rather optimized for deep sea diving too.

That’s exactly how the pressure vessels of most deep sea stuff is made. Steel ball with stuff attached to the outside.