Reap what you sowe. Applies to this channels garbage content.

Too many untrained people constructing a vessel that needs to withstand upwards of 50,000 pounds of pressure on the bottom of the ocean. A glue was applied to the fiber material that was never tested under any pressure or Rockwell testing.

plus the carbon fiber shrinks down more then the titanium. thats gonna rip the bond right there n take the brunt of all the stress. STUPID.

In reality, even the glue could have been superfluous for actually holding the sub together. The pressure of the water at depth would have been forcing the end pieces inward against the cylinder main shell. You could have used a bungee cord wrapped around it just before you tossed over the side. The only real effect provided by the glue, at least underwater, would have been as a sealant, not an adhesive. They could have put handle bars on the end pieces and everybody could have pulled them inward until the water pressure sealed it. Sure, being handed a titanium end piece and told to hold it against the main shell until you were under water might have brought on feelings of high anxiety among the paying guests but isn't that what Xanax is for?

I feel that as soon as you say words like “titanium” and “carbon fibre” to people, they automatically assume oooooo that must be awesome. Here, take my money AND my life.

Like the glue they use in outer space? Jetson type stuff.

I am not an engineer, but an experienced fix-it-yourselfers and I can tell you there is NO WAY that one could place glue EVENLY with a “hand job” 🙃 and there be “no air-bubbles”. Furthermore, one is attempting to bond THREE DIFFERENT MATERIALS of THREE DIFFERENT STRENGTHS that would FLEX under the enormous undersea pressures of 6000!psi in MANY DIFFERENT WAYS by undersea currents mowing in DIFFERENT unpredictable directions!!! The center piece is made of carbon fibers that ALSO would FLEX and may in time tear here and there and how would one know this has occurred?? This submersible was truly “experimental” and a disaster waiting to happen - RIP 🪦!!!

In 1992 I wrote my thesis on titanic and you couldn’t have paid me to ride in this thing.

I can’t even see where the science came in. I could have said, titanium is strong, carbon fiber is strong, let’s gorilla glue them together and add a ps2 joystick! Let’s also not forget it wasn’t even NEW carbon fiber. It was like older surplus or something.

Thank goodness it was gorilla glue huh?

Im no engineer but I’d have thought a one inch titanium inner and outer sleeve welded to the end caps would have been a better design

Mr. Rush is watching the actual moment of his own demise. Glue!

Nothing but a delusional con artist

Glue isn't the issue, the US Navy submersible was glued. However how they did it was definitely questionable, even to the untutored eye.

Also the placement of the ring on the hull is also eyeballed and not really measured. Thats pretty scary.

They should have used silicone, ever try to pull apart a aquarium with breaking. Amazing.

Im honestly shocked they didnt use elmer's glue. I would expect that after all the other videos of this company.

It was all around a stupid idea…BUT, IF they were going forward with a stupid design, gluing it was the best option. There wasn’t any pressure pulling it apart. All the pressure was pushing in on it. So they wasn’t a need for bolts because that would’ve weakened it even further. Again…Stupid design..But glue was the best option for that stupid design.

An all American soap box derby car is made sturdy then this piece of crap.

I wouldn't put this thing in my tub.

Well... how do you really know anything? And how does something become ordered without being a mess to begin with?

If they mixed controlled diameter glass beads in the glue, the glue line gets a minimum thickness. But, the difference in crimp due 6000 psi of the carbon cylinder compared to the titanium dome cause a moment which had to be transferred by the glue joint. The joint geometry was not designed to cope with that moment. The mechanisme Itself was something like the booster joints on the Space Shuttle, it as a sort off resemblance.

Of course why use physical joints with pressure resistant rubber, when you can just glue it. Just wow

The hearing is being here N. Charleston SC…in the building where my wife works.

Stockton Rush had absolutley no idea about engineering, just a shame he was not allone on the sub. Ego centric clown.

There were voids and bubbles. No way to avoid that.

Putting Carbon Fiber in Compression is EXACTLY the Opposite of what Carbon Fiber is best at.

Thank you for making this video. It blows my mind that anyone on this project thought that glue was a safe decision for this type of deep sea application. I have a gut feeling the passengers had no idea that glue was holding this 'sub' together. It would be interesting to talk to the family members of the deceased about this,

TicToc millennial sub! Funny that Boomers knew how to do it

I wouldn't go to 10m below the ocean surface in this thing. Nice school project, though.

Obviously the water found a way through the glued joint and found a way in after that it was over.

Omg... Geez.. tight too.. i couldn't believe only glued. In the old days they had rubber gaskets with bolts... How how did they do it 6 or more times that deep before there was a problem.omg why no inner hull with bolts... To at least hold the ends on

The flange is way too small and shallow. There was NO inner structure to support the shell.

Elmers all purpose glue and x box controller.

Why glue is inferior to nuts and bolts. I had a feeling it was something so simple. We'll done.

At best, you might be able to say that this sub was good for maybe 2 or 3 dives before it had to be disassembled and re-glued. But the idea that this sub could be used for days, months, years, on dozens of dives is completely nuts.

Wouldn't a human just put a flange on the two end pieces and bolt them together using long bolts??

The worst thing was NOTHING was evacuated to remove air bubbles. And the glue was just slapped on with a spatula

Hey for only half a million per ride you expected something better than glue? I'm surprised he didn't use duct tape at that incredibly low price! Sheesh!

yes but the port hole shattered.

Today is a critical day..... (proceeds to smear rubber cement by hand in a dirty warehouse by the sea)

People are not listening to the facts, it made it multiple times to the titanic, It sounds like something compromised the hull during a loading event, And that the dome swung open causing damage to the bolt on ring. The epoxy they used was a body filler for composites it didn’t have acid etching properties. You have to prepare titanium for bonding. Had it had a deeper engagement on the collars it would still be getting stuck on wrecks.. They should have drilled holes on ring s put it under vacuum to ensure a complete bond. Then plugged holes for a water tight seal

I am not an engineer but I know better than to take materials with different expansion and contraction rates and glue them togethere and subject them to severe temperature and pressure changes and I never learned that, I just know it intuitively.

Being an engineer I’m confident in stating that This type of glued joint should be done by applying a bead of glue in the centre of the joint which is then compressed to squeeze the glue bead to ensure that there is complete contact between the surfaces and that all the air is completely displaced creating a completely uniform bond. Nevertheless this kind of joint should not be used where huge lateral pressure cycling will occur. This is just one of a myriad of issues that are obvious with this particular construction. Having rigid titanium bonded to a relatively flexible carbon fibre will ultimately lead to fatigue and failure of the bonded joint resulting in the catastrophic failure that happened.

Oceanfloor's Five. What does "glue must be small" even mean when we're talking about a 3D structure or alternatively a film, Stockton babbling world salad.

If you count the resin that bonded the carbon fibre to itself, then the entire tube was one big glue joint😮

No degassing of the glue, applying it like butter, no post joining vacuum. Guaranteed failure.

If you cut the ends off a tin can, the remaining cylinder is easily flattened. In Titan, the glue would provide little strength as the cylinder was being flattened. Seems like the titanium domes should have been inset in the CF.

Things never seem like a bad idea until they go horribly wrong.

Wouldn't there be a difference in how the different materials react to the temperature variances?