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Tourist submarine exploring Titanic wreckage disappears in Atlantic Ocean

It strikes me that what never seems to have been mentioned in terms of how that sub was built and operated has to do with tilt and trim. How did they control the trim of the sub? How did they right it if it inverted? Why would anyone assume that it would remain in a perfectly horizontal position with 1000 pounds of movable ballast in the form of its occupants inside? If enough of them huddled forward to look out the front port, would it have nosedived? And if it did how could it be righted? Apologize in advance for asking 50 year old white guy questions
 
Gbkeith said:
Dude set a Guinness record for flying around the north and south poles in space. If he had life insurance it wasn’t normal.
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I've heard of life insurance policies than have "exceptions" written into them. I worked with a guy that had a policy that specifically excluded any pay out if he died while sky diving.
 
plym49.2 said:
It strikes me that what never seems to have been mentioned in terms of how that sub was built and operated has to do with tilt and trim. How did they control the trim of the sub? How did they right it if it inverted? Why would anyone assume that it would remain in a perfectly horizontal position with 1000 pounds of movable ballast in the form of its occupants inside? If enough of them huddled forward to look out the front port, would it have nosedived? And if it did how could it be righted? Apologize in advance for asking 50 year old white guy questions
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Cmon man….
These unknowns are what make the trip innovative and interesting!!!!!
:flipoff2::flipoff2::flipoff2:
 
plym49.2 said:
It strikes me that what never seems to have been mentioned in terms of how that sub was built and operated has to do with tilt and trim. How did they control the trim of the sub? How did they right it if it inverted? Why would anyone assume that it would remain in a perfectly horizontal position with 1000 pounds of movable ballast in the form of its occupants inside? If enough of them huddled forward to look out the front port, would it have nosedived? And if it did how could it be righted? Apologize in advance for asking 50 year old white guy questions
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Gregj50!!!!! said:
Cmon man….
These unknowns are what make the trip innovative and interesting!!!!!
:flipoff2::flipoff2::flipoff2:
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:lmao:
 
plym49.2 said:
It strikes me that what never seems to have been mentioned in terms of how that sub was built and operated has to do with tilt and trim. How did they control the trim of the sub? How did they right it if it inverted? Why would anyone assume that it would remain in a perfectly horizontal position with 1000 pounds of movable ballast in the form of its occupants inside? If enough of them huddled forward to look out the front port, would it have nosedived? And if it did how could it be righted? Apologize in advance for asking 50 year old white guy questions
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I mean if you actually looked at a picture of the sub you could probably reason it out yourself :confused:
 
plym49.2 said:
OK, we’ve all seen pictures of the sub. Educate us.
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CDA 455 II said:
No
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Probably has something to do with controlling the thrusters?

nic-submersible-titan-3d-model-index-superJumbo-v2.jpg
 
Void_of_Light said:
I’m not seeing a movie here. No hero, no survivors.

There will be a Netflix documentary about the company and it’s race to put profits over safety. That’s a guarantee.
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You forgot a part. Because it’s netflix it will be all older white guys involved in the project talking about how the safety laws are too strict and they know what they are doing.
 
Gatorgrizz27 said:
I’m still not sure why they used carbon fiber in the first place. I didn't finish engineering school, but the industries that use it are primarily because of its low weight vs it’s high initial stiffness. Long term durability and impact resistance aren’t even on the list. People have cracked mountain bike handlebars due to overtightening brake master cylinder clamps with handheld Allen keys, and frames regularly crack and fail.

Why not build the thing out of steel? It really doesn’t matter if it ends up weighing 40k lbs once it’s under water.
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I'd never thought of it but the guys at qa1 were going over their CF driveshafts and said they'd tested the torsional rigidity up to 9000 ft lbs and the driveline would twist 30° and come right back to zero and not fail. I had always been under the impression it would stay perfectly rigid until failure but apparently not.

Granted this was .120" tube vs 5' so apples to armadillos but it was interesting nonetheless.
 
Gatorgrizz27 said:
I’m still not sure why they used carbon fiber in the first place. I didn't finish engineering school, but the industries that use it are primarily because of its low weight vs it’s high initial stiffness. Long term durability and impact resistance aren’t even on the list. People have cracked mountain bike handlebars due to overtightening brake master cylinder clamps with handheld Allen keys, and frames regularly crack and fail.

Why not build the thing out of steel? It really doesn’t matter if it ends up weighing 40k lbs once it’s under water.
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Cause carbon fiber bonded to titanium is new and inspirational. What are you, some 50 YO white guy?
 
Bacho said:
Right, I’ll make the assumption the sub was also filament wound.

There are a lot of carbon and other composite pressure vessels. It works great to load those fibers in tension.

I don’t know what the max delta of a 787 is. They are stronger than a traditional jet. On the RJ, we could never exceed 8psi delta on the ground.
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Buddy 6 is all I want. Even then my sinuses are all fucked up.

Speaking of, I looked in the AMM MHI doesn't recommend persons who have gone scuba diving in the last 24 hours to preform pressurization tests. I thought that note was ironic given the reason I was looking it up :laughing:
 
SanDiegoCJ said:
I've heard of life insurance policies than have "exceptions" written into them. I worked with a guy that had a policy that specifically excluded any pay out if he died while sky diving.
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You are correct.

We had large (up to $7 million per partner) policies to fund buy-sells on our larger multi partner development deals. No sky diving, not private pilot's license and a few other exclusions that I can't recall.

I did have a great money-making idea shot down by the NY Life agent.

Go to the hood in LA and pay teenage gangbangers a small sum and fund a $1 million dollar life policy on them. When they die you make bank.

The agent stated that you had to be able to prove "the necessity (my words)" of the policy amount. I could have been a sweet money maker. Especially if you seeded the clouds.
 
Anyone ever seen that clip showing them carefully unbolting the hatch of a bathyscape/diving bell that leaked while down deep?
It was a test or something.
They unbolted the hatch once they had it on the barge.

That hatch blew off into the next state and the stream of water that came out was impressive.
It was in the 60’s or so.

Can’t find the clip for hours of looking :homer:
If you’ve read this far you can have a go of finding it now :cool:cool
 
posford said:
Probably has something to do with controlling the thrusters?

nic-submersible-titan-3d-model-index-superJumbo-v2.jpg
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So those thrusters can make 3 knots of headway. In a 4 knot current you are moving backwards. And what configuration (i.e., direction to point them) would permit you to recover from a nose dive? Or stern dive? Or any other tilt or trim situation where the thrusters either do nt have enough oomph or are ineffective because of their location?

EDIT: And did his simplistic joystick controller permit any unusual orientation of those thrusters to handle an unusual but critical situation?
 
plym49.2 said:
So those thrusters can make 3 knots of headway. In a 4 knot current you are moving backwards. And what configuration (i.e., direction to point them) would permit you to recover from a nose dive? Or stern dive? Or any other tilt or trim situation where the thrusters either do nt have enough oomph or are ineffective because of their location?

EDIT: And did his simplistic joystick controller permit any unusual orientation of those thrusters to handle an unusual but critical situation?
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So did you magically figure out how google works to get that 3 knot number? Because a minute ago you had no idea how it would do anything and wanted to be spoonfed, now you're a submersible expert :confused:
 
3nuts* said:
Anyone ever seen that clip showing them carefully unbolting the hatch of a bathyscape/diving bell that leaked while down deep?
It was a test or something.
They unbolted the hatch once they had it on the barge.

That hatch blew off into the next state and the stream of water that came out was impressive.
It was in the 60’s or so.

Can’t find the clip for hours of looking :homer:
If you’ve read this far you can have a go of finding it now :cool:cool
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seen that many times

window leaked and then held pressure within when they got it back on board the ship.
impressive when he opened the acess port (with a hammer) and water came blasting out
 
arse_sidewards said:
Five people is a cheap price to pay for not letting the world know exactly what your capabilities are.
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At least since the '70s;
We/and NATO have had listening devices planted from the Norwegian Sea all the way down and all over the North Atlantic Ocean in order to keep track of Soviet subs, especially when we discovered their 'Crazy Ivan' maneuver.
 
gt1guy said:
Are you high? This guy is a fucking clown who thought he was smarter than not only everyone in the field but, all the hard learned best practices of staying alive under water. He hired people who didn't have a clue as to what they were doing either. His approach to building a sub was always going to end in killing........customers.

I have a funny feeling his little health monitoring system he came up with for the hull was because he was told there was no way tell if the CF hull integrity had been degraded. Well, his monitoring system didn't work so good.

The list of bad ideas is long and the list of good ideas is empty. Add to that, he just fucked everyone else who might have wanted to build a sub.





How do you know that this guy who just happens to be a billionaire is a clown ? It would seem to me he is way past knowing how to fill in a coloring book, not sure why i think and it just a simple mined guess . So please tell us how you know this guy is a clown with your vast knowledge of this guy . We await your enlightenment .
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Well, for one, wealth nor education equals intelligence. How to draw the conclusion the guy was not just a clown but an idiot? Have you read anything about the design and design team "HE" used?

I don't have a PHD in structural engineering but I'm not a veterinarian either and can still figure out its horse shit when I see it. :flipoff2:
 
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