Missing Sub

[mowens]

Apparently there were safety concerns already.

Safety

I think it's interesting that a person originally scheduled to be on there backed out over safety concerns.

https://www.dailymail.co.uk/news/article-12216367/Friend-Hamish-Harding-says-pulled-OceanGate-sub-voyage-safety-concerns.html

[Incogneeto]

Well if he kills the other 4 he might have enough air for a week.

Plus Dinner.

[beej]

I heard today that the hatch on that thing bolts down from the outside. It's not like you'd want to open it at those depths, but I just don't think I could let someone bolt me in that thing.

[pmartin]

It looks like it was engineered with a nothing could go wrong mindset.

[Del.]

It looks like it was engineered with a nothing could go wrong mindset.

Just like the titanic.

[Del.]

Hard to believe they can't ping the exact location of sub.

[gcode]

Hard to believe they can't ping the exact location of sub.

its made of a 7" thick carbon fiber shell so it's not going to reflect sonar signals like a steel hulled
submarine would.

However, you'd think they would have put some sort of homing beacon on it.
I read an article that said that sub has some real lame engineering, like a Game Boy controller
to drive it and very underpowered propulsion units.

My personal opinion is that it suffered a catastrophic hull failure on the way down.
The hull of subs (and airplanes) expand and contract as the outside pressure changes with depth
(or altitude)

Over time the structural integrity of the hull is compromised.
They must be inspected regularly and decommissioned
at the first signs of fatigue.

Remember the short haul Hawiian Airlines 737 that peeled open
like a beer can with a firecracker inside?

The company that built the carbon fiber shell would not certify it past 6000 feet and it is going to 12000 feet to visit the Titanic.
I believe the water pressure at that depth is about 6500 pounds per square inch.

Given a choice I'd much rather go in a catastrophic hull failure.
5 or 6 days suffocating to death in a 10ft long x 4ft diameter tube sounds like a hard way to go.

[Del.]

I think they're dead.

[RobertELee]

The US Military has mentioned they have heard banging sounds coming from the area.

[JakeL]

I think they're dead.

No way, I think they're still swimming. Takes a long time to swim 2.4 miles up in the ocean

I gotta end a post like this with "/dark humor" or something like that right?

[mowens]

its made of a 7" thick carbon fiber shell so it's not going to reflect sonar signals like a steel hulled
submarine would.

However, you'd think they would have put some sort of homing beacon on it.
I read an article that said that sub has some real lame engineering, like a Game Boy controller
to drive it and very underpowered propulsion units.

My personal opinion is that it suffered a catastrophic hull failure on the way down.
The hull of subs (and airplanes) expand and contract as the outside pressure changes with depth
(or altitude)

Over time the structural integrity of the hull is compromised.
They must be inspected regularly and decommissioned
at the first signs of fatigue.

Remember the short haul Hawiian Airlines 737 that peeled open
like a beer can with a firecracker inside?

The company that built the carbon fiber shell would not certify it past 6000 feet and it is going to 12000 feet to visit the Titanic.
I believe the water pressure at that depth is about 6500 pounds per square inch.

Given a choice I'd much rather go in a catastrophic hull failure.
5 or 6 days suffocating to death in a 10ft long x 4ft diameter tube sounds like a hard way to go.

I read a comment that said the fans looked like oversized computer fans.

I have limited experience with filament winding, the process that was used to make the pressure vessel. We had one here when I first started but that's the only exposure I've had. From what I've read, it's a pretty common way of making pressure vessels.

I wonder if they ever tested it to the point of failure? I would think that at that depth a minor delamination could turn into a catastrophic failure,

I'm not so bothered by the Playstation controller. Those things take a lot of abuse.

I tend to think it's a catastrophic failure. I read that there are 7 different ways the sub has to surface in the event of power failure.

[Smit]

I tend to think it's a catastrophic failure. I read that there are 7 different ways the sub has to surface in the event of power failure.

If they don't get rescued I hope you're right. It would be over in seconds.

If they're snagged on something (or anything else that prevents them from surfacing), well, that would be a pretty awful way to die.

[Del.]

If they don't get rescued I hope you're right. It would be over in seconds.

If they're snagged on something (or anything else that prevents them from surfacing), well, that would be a pretty awful way to die.

Personally I'm hoping for spontaneous human combustion!!!!

[Jeff]

The level of stupidity it took to enter that sub is enormous.

Can't steer itself, it can only drift with current
No rescue plan in place
Can't open from inside if trapped on surface
No beacon signal for when shit like this happens
Can't be pinged by SONAR

Yeah, sign me up!

[Surface]

Humans have always pushed the limits of phyics and engineering, often with tragic results, however it is those pioneers who push the limits of what is possible, encouraging others to go beyond.