The port hole window was only certified to 1300meters by the manufacturer. The manufacturer offered to redesign it to withstand 4000m, which would be 200m deeper than the titanic wreckage, but OceanGate didn't want to pay for that, and instead fired the employee that was making a fuss over it (Lochridge). This is a damning fact.

@dx1450

10 ай бұрын

That, and the fact that they didn't disclose this to the passengers is what's going to doom what's left of the company to gross negligence lawsuits, regardless if the porthole was the main point of failure or not. The fact that they used a porthole which wasn't rated to that depth speaks to all the cost saving corner cutting they did which cost 5 people their lives.

@liquidscor00

10 ай бұрын

Awful...just despicable

@Zebra66

10 ай бұрын

We've already seen the titanium end with the acrylic window missing. So, whatever else happened, we know with 100% certainty that the window failed. The only other evidence (for any other theory) beyond the usual regurgitated guesses are the lack of cf residue on the Titanium end caps. This makes it equally likely that the glue seal failed and the CF tube is possibly in one piece somewhere.

@a3nofficial25

10 ай бұрын

Tbf I dont think all of oceangate was okay with the practices of the company, the singular idiot in all of this is Stockton Rush and his constant corner cutting, sadly he's now a mist so he cant answer in court

@L4v3

10 ай бұрын

@@Zebra66 But we don't know if the window was the cause of the implosion or if it was blown out because the tube imploded. If the tube was in one piece it would be very close to those end caps and as far as I know we haven't seen any pictures of it.

It's very strange to me when Stockton says at 6:05..."It gives a huge warning before it's going to fail." when discussing the porthole lens. He seems to think that he will be given all the time in the world to surface and re-design the craft after hearing that the portal lens is failing.

@warpedweirdo

10 ай бұрын

It's as if he didn't understand how quickly things could go from pops / fractures to complete disaster at such depths.

@tioswift3676

10 ай бұрын

Yeah. At best he can climb at ~3-4 knots and cross his fingers and hope it doesn’t implode.

@jacobjohnson4763

10 ай бұрын

With failsafes that could take 14 hours to get them to the surface, anything that could develop and become a failure in less than 24 hours was a disaster waiting to happen. Stockton Rush built this to his own risk tolerance not to a safety tolerance. I think him and PH knew what they were getting into. The others less so. He gambled with their lives for his own passion.

@HungTran-dv5me

10 ай бұрын

Exactly,Rush made it sound like,if the submersed was gona ,crackle right away,jst fully underwater,and he will know it needs fixing.But usually wen it's miles underwater,if start crackle,it's gona take hours to resurface.It be way to late,Rush seem so relaxed. A crack is normal,we jst go back up...smh,wat Rush was thinking.😊

@lordofentropy

10 ай бұрын

Indeed, it's ridiculous. When you're surrounded by fluid at 400 bar, you don't want "cracking" to be your warning, it's too late at that point. Even if it's not an immediate implosion, it's not like you push a button, instantly surface and you're all good. You still have insane amounts of pressure as you ascend, and as the pressure changes while ascending it's causing yet more flexing which obviously can exacerbate any existing failure or fatigue despite moving towards less pressure.

Every time I see this so-called sub, the hobby shop nature of the whole build gets more and more unbelievable!

@kenbrownfield6584

9 ай бұрын

He should've used leggo's instead of cf.

@willc5512

6 ай бұрын

Its that handpump thing that gets me. I see a handbrake lever on a manual transmission car sticking up out the floor. I dont know how they would seal that as the lever has a vertical AND horizontal axis as u pull up on it. Just lots of fun to be had!

Rush's constant reassurance that there would always be " warnings" is insane.

@gentrynewsom2080

9 ай бұрын

The warning ⚠️ was from the gitgo till it crushed .

@somejoe7777

4 ай бұрын

The fatal flaw was the very incorrect and naïve assumption that you could easily ascend at any time to take care of an issue. 100% wrong. If the hull is compromised, then all bets are off as to whether you can maneuver. We immediately saw this from the transcript -- there was evidence of some sort of compromise of the power system, and they had very little thrust to ascend with. It doesn't matter how much advance warning you have if you can't surface.

@zeke2566

3 ай бұрын

Insane is the word to describe the whole trip....

@MegaSunspark

2 ай бұрын

In his stupid mind, he didn't understand the very basic fact that any warning he would get, it would already be too late to do anything about it. That's how fast things happen in the ocean depths due to the pressures involved.

@kirbywaite1586

2 ай бұрын

@MegaSunspark You have reinforced my point , and I appreciate it.

As a drafting design student my money is on the glue between the titanium and carbon fiber, there’s too much movement there under each compression cycle to even remotely consider the viewport. If I was an investigator that’s the first place I’d look just because of the strength difference in material and the fact it’s a cycle fatigue hot spot

@benoitguillou3146

10 ай бұрын

When you squeeze a Pringles chips tube usually the aluminium lid pops out ....Now on oceangate of course the lid couldn't "pop" per say because the pressure outside made it adhere , but the glue joint deformation between a still round titanium lid and an ovalized tube opening due to the squeezing .......

@siclucealucks

10 ай бұрын

as mech engineer + applied physicist - I do agree.

@DonaldHolben

10 ай бұрын

You are not the only one...

@matchesburn

10 ай бұрын

I'm getting very, very tired of seeing the "but the glue!" and "titanium-carbon fiber surfaces!" theories. *_Is it really so difficult for you people to believe an elongated cylinder, which is something you don't do on a deep dive submersible, made from a material that isn't suitable for repeat deep dives due to compression loading/deloading cycles... Broke in the middle part where there's the most surface area, with the smallest amount of structural stability?_* ...Is it... really that difficult to believe that's almost certainly the point of failure? Even the FEA shows it! Now, granted, finite element analysis is not omnipotent... But my theory has a hell of a lot more evidence than yours does.

@brianwest2775

10 ай бұрын

The viewport was only rated to about 1/3 of the depth they dove to. That's why people question it.

Stockton was so confident. Goes to show how terrible of a weapon something like charisma can be if used in the wrong hands

@singamajigy

10 ай бұрын

Imagine President Stockton Rush. Actually it’s not that hard to imagine. :(

@DanEBoyd

10 ай бұрын

@@singamajigy Elite narcissists = politicians, CEOs, and hollywood types, among others...

@theonlyegg

10 ай бұрын

@@singamajigynot anymore! Thankfully.

@DevinBauer

10 ай бұрын

Charisma and uniting goals are powerful things, just look at Mussolini and Hitler

@koraamis5568

10 ай бұрын

Will Elon's rockets to mars be any better? There are many charismatic people

Rhino liner is sprayable liner that would be applied to truck beds. Again, we see that Titan was a pot luck of various materials. Rule of thumb, as you combine various materials you increase complexly of joints as well as adding more variables in expansion/contraction puzzle.

@arthurreyes2632

6 ай бұрын

Might as well put some flex seal on it too. Stockton Crush.

@Telephonebill51

Ай бұрын

Rhino liner is just sprayed polyurethane. It's not magic, it's one of thousands of variations on a molecule.

It was great to see Stockton Rush walking around the Titan on land while wearing safety glasses and a bicycle helmet.

@57Jimmy

9 ай бұрын

Should have also had a snorkel saying it was a guaranteed emergency breathing apparatus…you know…the real old ones…with a caged ping pong ball at the end? That would be the accent vessel to raise you to the surface. He was such a good used car salesman people would still believe him😢

@trevorjameson3213

9 ай бұрын

@@57Jimmy Used car salesman, excellent example! I've known a lot of people like that, and when they say something, I always reply, "really? How do you know that? Let me see the data on that". Of course they never do, they just get mad and start jabbering even more.

@degsbabe

9 ай бұрын

And where has it led too....they're all Mush at the bottom and the darkest deepest part of the great forbidding part of the unrelenting ocean. You can still hear the ancient groans of the 1912 titanic ghosts ......saying...' Don't come down here........'

@BD12

9 ай бұрын

I hope he had the helmet on when he imploded

@markceaser8073

6 ай бұрын

He needed the tin foil hat as well.

I actually was on this submersible when I applied for a job with the company. We went out in Puget Sound only like 600-800ft deep, saw some stuff, and had some folks from the UW on with us studying the marine ecosystem. Even that short trip of 90-120 minutes gave me pause. We had an issue with the joystick connection and were without control for what seemed like forever but probably was 5-10 seconds. After hearing that this wasn't uncommon, I chose to work elsewhere. The rapper Macklemore was on it, too, for a shark week episode. This was before they began going to the titanic.

@singamajigy

10 ай бұрын

Wow! I bet that was an incredible ride. Is it now terrifying to think about what could have happened? Too bad the company didn’t stick with shallow dives, which would have been safer at least.

@fishshipempoyee1273

10 ай бұрын

that's why the CEO was driving the sub, the other candidates also chosen to work elsewhere. Wise decision.

@MadMenPlays

10 ай бұрын

That’s actually crazy if true. What do you do if you don’t mind me asking

@ifv2089

10 ай бұрын

Dogged a bullet there... jezus H christ !

@54stevemac

10 ай бұрын

Interesting but I would rather wait until the official investigation is completed

He coated his submersible with truck bed liner claiming “it’s what the military uses”… as a floor coating. The military doesn’t use Rhinoliner to keep water out of submarines! 🤦‍♂️

@thomasdurant7907

10 ай бұрын

Oh no, I missed that part! When used as an undercoating in vehicles, those rubberised liners are notorious for trapping water. I imagine any water that accumulated in the carbon fibre would be thoroughly contained there. 😬

@RCake

10 ай бұрын

...and this would also make sure it is impossible to isually inspect the material condition between dives. Not sure if that was such a good idea.

@chairmankim9628

10 ай бұрын

The military is not stupid. They use FLEX SEAL instead. Much better.

@wshyangify

10 ай бұрын

Military subs don't go down to titanic depths 😂

There would have definitely been some loud creaking for about 10 seconds as the acrylic began to fail. It would have resonated louder and louder in that small capsule. What a terrifying thing

@crystaldawn9255

9 ай бұрын

And they say that like that's their number one safety feature. But then what? Hearing cracking and getting a warning does nothing for you when you're that far in the deep

@IronWarrior95

9 ай бұрын

Actually, the cracking went on for over 20 minutes and the RTM alarm was red for like 19min, according to their communication protocol. So they knew for 19min that something will happen and they couldn't do anything. They tried to emergency upscent, but they went up very slow, only like 50m in several minutes. They knew it will be over soon and probably prayed that a miracle will happen and they survive. The hull monitoring system was pretty much useless because even if it works, you still can't do anything in time, it only makes it worse for everyone inside because then you know something is wrong. I would rather have no monitoring system and just implode without even expecting it. But unfortunately they knew it will happen.

@richardhill2643

9 ай бұрын

How do you know that? What evidence do you have?

@cwatson42785

9 ай бұрын

​@IronWarrior95 I don't think that information has ever been confirmed to be real. It was released originally on Tic toc so I'm definitely skeptical of that communications data that's been put out there.

@IronWarrior95

9 ай бұрын

@@cwatson42785 expert's actually say it's a 99% chance that the protocol is real, even James Cameron and other experienced people. The type of communication, the things they are talking about and how their choice of words and spelling has changed as soon as the problems started and all the know how, is all just too accurate that a random person on the Internet could have faked it. There are aspects that no one would even think about to add them to the protocol, if someone was not involved in it, which makes it more realistic. When experts believe it's real, when the whole story adds up 100%, then I also believe it's real.

Years ago before my retirement I used to maintain the US Navy’s nondestructive testing (NDT) systems in San Diego, California. The stresses from takeoffs, landings, and controlled flight over time fatigues the wings and fuselage; after a certain number of flights NDT is used to locate minute fractures and aided in identifying areas requiring maintenance and repair. After the OceanGate accident, one of the first things that came to mind was whether Titan was ever subjected to NDT.

@mth469

10 ай бұрын

Apparently their system onboard used ultrasound to detect stresses in the body of the craft as it was diving. The theory being that noise increases in the material well before the material will totally fail. I don't know the exact science behind it or how valid of a monitoring system that is. So I guess they were doing NDT on the fly.

@lk29392

2 ай бұрын

@@mth469 I'm not 100% sure but I believe Stockton didn't want to pay for NDT testing between dives as that would add cost to an already expensive submersible and he was 100% sold on the idea that his stress warning system was fool proof and safe.

What still caught my attention is how preserved the titanium parts are. It seems it was the right material to be used in the whole body of the sub.

@coreyspitzley2960

10 ай бұрын

Too heavy though

@coreyspitzley2960

10 ай бұрын

Not to mention expensive

@lordgarion514

10 ай бұрын

If the hull is what caused it, and it probably was, then the end caps were nothing but domes being pushed from the inside and outside. The wouldn't have been under any crushing force at that point.

@josuebarboza9809

10 ай бұрын

Too cheap= Human ketchup.

@coreyspitzley2960

10 ай бұрын

@@josuebarboza9809 yeah In hindsight I'm sure he wishes he used titanium, or stress tested, or any number of the other things he blatantly ignored

Ex submarine sailor here. I think that when they dropped ballast and/or the landing skid, the vessel went vertical with the stern down. Everyone was in a pile on top of the pilot until it imploded. They knew what was happening. That toy submarine didn't have any way to maintain the horizontal orientation once things went bad. Any small problem with buoyancy or trim became a lethal problem in seconds.

@barleyhops38

10 ай бұрын

I always am confused when re enactments include the landing skid as I thought it was dropped prior to the implosion and as shown in recovery videos, they were not bent. Perhaps if they were indeed still connected, the bolts would have just been broken and no bending of the frame?

@kev_299

10 ай бұрын

That makes sense. We already know one method they had to release weights was to have everyone move to one side to tilt the vessel so it’s orientation was quite easily manipulated by shifting weight. All without any fixed seating or restraints that even a forklift is required to have. If Wile E. Coyote took delivery of a submersible in a nailed-together wooden Acme crate it would have looked something like the Titan. Even the Acme rockets came with a strap to keep you on!

@pugsymalone6539

10 ай бұрын

@barleyhops38 yeah, a lot of our speculation depends upon whether or not the final communication transcript is real. If they were dropping fast, I believe the reason was water infiltration of the carbon fiber at non-catastrophic depths, probably not symmetrically so (EDIT: auto correct tried to say semantically.) Upset the otherwise normal weight arrangement, and she tries to go vertical. Rush may have burned up his battery bank trying to remain horizontal, and as he lost the fight to dead or dying batteries/dead thruster motors...she goes vertical. People end up in a pile in the dark until the ride is over.

@pugsymalone6539

10 ай бұрын

@@kev_299 Your analogy is perfect. MEEP! MEEP!

@mikesanders4012

10 ай бұрын

Nice point. But vertical orientation isn't weaker , or is it ?

Hi Jeff - used to work on aircraft with windows made of a similar material. What you're seeing from the photo on the OceanGate website is called "crazing" and is usually a result of exposure to high heat or electricity - example, you usually find crazing near the de-icing elements built into the windshields. I don't know what effect crazing has on the ability of acrylic to withstand high pressure. Our rule was to replace the window if the crazing was more than 1/2" or it interfered with the pilot's vision. To my knowledge that wasn't so much out of concern for any breaking, but more because the crazing lines can refract light, and lights are extremely important for navigating at night or in any kind of rain or fog. Edit: just saw another comment where someone says it's optical grease to help the acrylic seal as it's pushed inward by outside forces. No reason not to believe that, makes sense. Maybe investigate crazing just to see if that would be a likely culprit?

@drewlop

10 ай бұрын

I like working with acrylic for little DIY projects and any time I see crazing it comes with increased brittleness. Not to mention the word is a combination of "cracking" and "hazing," so if crazing is really what we're seeing here that's definitely an indicator of compromised strength

@nadapenny8592

10 ай бұрын

@@drewlop with the assist 🤝 never knew it was cracking/hazing, it seems so obvious now

@krisztinaholly

10 ай бұрын

Ammonia, some alcohols, and acidic substances can also cause crazing.

@andrewsimpson5436

10 ай бұрын

@nadapenny8592 but aircraft "windows" are not under the same pressure as those at depth in water. Likewise "optical grease" is not used to seal ports to the housing. Crazing does weaken acrylic but it's generally only caused on the surface but what is seen in these videos is not that. Why believe what I say? Maybe the fact I make deep water acrylic ports for cameras and ROVs that range from 1500M to going to the bottom of the Mariana Trench, or trust Jeff who's an electronics engineer for a mobile phone company 🤣

Jeff provides by far the most interesting and thoroughly researched content on engineering failures.

What looks like cracking, is an optical grease that is used to seal the tapered surface of the acrylic into its seat in the titanium end cap. Under pressure, the acrylic is forced inwards and the grease helps it seal.

@jeffostroff

10 ай бұрын

That sounds logical to me

@cathybaldry7822

10 ай бұрын

That is what I thought

@hardwareful

10 ай бұрын

That also sounds like the grease would make it into any fissures, obscuring latent problems - and with the wrong grease or contamination, crazing could form, no?

@carpe_poon5761

10 ай бұрын

I heard they used glue around a bunch of the surfaces that joined together

@cnnothingburgerletsgobrand6381

10 ай бұрын

Try Flex Seal, I Just Sawed My Boat In Half 👍

I'm glad you talked about the Alan videos. In one of them, the sub got stuck at the bottom for many hours, and when they finally were able to ascend, they could't bring the platform afloat. Because it required compressed air, the air in those tanks exhausted, and the submarine/platform listing in the middle of Atlantic, the crew bolted inside, and a few guys circling around on dinghies with no clue what to do. You should bring that scene in your videos. To me is the summary of the OceanGate's operation, a complete mess.

@highjinx6519

10 ай бұрын

Where can I find that? Edit: nvm found the links to his channel in the description. Do you happen to know which part it’s on?

@Kimber123

10 ай бұрын

@@westernrider100 The top did say during the transcript that they were pursuing recovery, whatever that would mean.

@fishshipempoyee1273

10 ай бұрын

@@highjinx6519 The scene is in part 2 at 14:06 or here is the link: watch?v=gOjJJKld6jY&t=846s

@highjinx6519

10 ай бұрын

@@fishshipempoyee1273 awesome I’m already on part 2. Tyvm!

@danaeharbottle9906

10 ай бұрын

​@@fishshipempoyee127312:25

Jeff, I found you while looking for coverage of the tower collapse, in Miami. This video is beautiful, thanks for your hard work!

The "cracks" in the port hole look more like void spaces between the mating surfaces. Basically if you have a sealer/glue like material you tend to get void spaces and the surfaces mount. It is really hard to eliminate that totally.

@heathenhedgemonkey2419

10 ай бұрын

It looked like there was a hefty sized void in-between the porthole and the titanium dome at 7:50 mins into the video.

@jakewestor7840

10 ай бұрын

@cbremer83 You've hit the nail on the head. If there was grease there before, it's gone now. All that's left is a void where water can, and did, ingress. I think that inner edge of the acrylic was chipping, and had been, for a long time. If it's not chips, and it is indeed grease, then it is being pushed out of the edges and the end result would be the same...water ingress. I'm willing to accept that it's confirmation bias, but on balance I think we're onto something here.

@ryelor123

9 ай бұрын

@@jakewestor7840 Under the pressure, it would've been self-sealing. When building stuff for high pressure, your objective isn't so much to counter everything but instead to make the pressure work for you. I bet it'll turn out to be a battery that exploded. These kinds of accidents have happened all throughout human history. Someone will be so focused on the greatest challenge that they'll ignore other potential problems.

@Ezekiel903

9 ай бұрын

@@ryelor123 yes but if it was grease, where was the grease pressed? it doesn't disappear.

@gentrynewsom2080

9 ай бұрын

Greased Lightning ⚡

Thank you for continuing to do these videos; I don’t feel like I have to go searching around all kinds of channels for speculation and news since you bring them all together. Thanks!!

@jeffostroff

10 ай бұрын

Glad you like them!

@bekeneel

10 ай бұрын

But can one really simulate that? I mean yea how fast it would collapse but what does that say? They were aware of the danger already for at least 15min. Possible cause is that they descended too fast, and the custom made titanium/carbon made hull came under too much pressure and they didn't have the time to go up again, as they were almost completely down with the titanic so ye. The slightest crack or tear would make the sub implode i suppose, with such massive pressure dthere. Well that's what my expert knowledge tells me at least.

@Andy_Babb

10 ай бұрын

I agree with this comment. Please continue to keep us updated!! Great channel!!

@RedHotMessResell

10 ай бұрын

I agree. I keep coming across channels that keep reposting the same AI voice videos and I think they’re something new, and it’s just the same info over and over, so I appreciate these real videos from a human voice. Followed since the Miami Condo collapse.

@dansaber5853

10 ай бұрын

​@@jeffostroffdo you think super glue and baking soda would make for a better haul material? I hear it's lighter and stronger than steel

The fact that the plexiglass window expanded and contracted 3/4 of an inch with every trip would make me nervous! It had to be compromising any seal around its perimeter I would think!

@ImRandomDude

10 ай бұрын

Bending of structure is normal, to put it into perspective.... The Willis Tower is designed to withstand the heavy winds coming off Lake Michigan, and that means that if you're standing at the top, you can feel it sway up to 3 feet (about 1 meter) in both directions before you should start to feel worried. Even on a calm day, the tower generally sways about 6 inches (15 centimeters) in both directions. how would it compromise seal if it gets pushed in and fills any imperfection, just like any rubber seal we use ....

@matchesburn

10 ай бұрын

"It had to be compromising any seal around its perimeter I would think!" The seal would be actually be tighter at depth because of the pressure of the water forcing it closed. Same way with you can't physically open the door on a passenger jet due to the pressure differential. There was actually an interview with another deep sea submersible builder on the channel "ACE" (yes, just that) with Karl Stanley, who *_tried to warn Stockton Rush_* talking about how because of the pressure you don't even need to technically lock the hatch shut because the pressure will create such a seal. He actually forgot to do it on his first dive and the first few feet caused a bunch of water to pour into the sub, but then the pressure created a seal.

@terongarbutt7743

10 ай бұрын

​@ImRandomDude A tower and wind is not comparable to glass and pressure. Anyways, there was no rubber seal involved with this submarines plexiglass porthole, I think you think wrong.

@kev_299

10 ай бұрын

I would be just as concerned about the bolts surrounding the window shearing when the window circumference grows slightly from compression. Those bolts are probably spec’d for high clamping loads but may not give much and snap under shear load conditions. It’s just another in a long list of things that could have been better engineered.

@mjouwbuis

10 ай бұрын

It was probably one of the few parts that were actually built to survive such pressure cycles, even if not correctly dimensioned.

You either give, or find, some the THE best information, explanations, & demonstrations I can find. Great place to come to get informed & learn. That gal's CAD presentation was impeccable.

Love your analysis and honesty. I've been lurking for the past few weeks and subscribed today. Looking forward to the next installment.

Some report that they had about 19 minutes to deal with problems related to the craft. Whatever the time might have been, you can bet it was a fearful situation with death knocking at the door. If you are busy trying to save your life that's one thing but if you are locked in a container near the bottom of the deep ocean with nothing you can do that is wholly different. I heard one person who had taken a trip on the craft reporting that the sound he heard wasn't just creaking but at times sounded like a gun firing. I think the situation was very grim and worse than has been described.

@thorsrensen3162

10 ай бұрын

The minutes may likely have felt like days, where the crew could reconsider all the thoughts and decision leading to the fact that they had placed themself in a presssure chamber 4000 meter below the surface of the ocean. And they had had so many other choises.

@Turk_2023

10 ай бұрын

I read somewhere that the last minutes the nose was pointed down and they would have all fell on top of each other

@jorgeillueca5260

10 ай бұрын

@@Turk_2023what a horrific way to go.

@DKFX1

10 ай бұрын

@@Turk_2023 Pure speculation without any strong indicators. Worthless.

@nm9412

10 ай бұрын

Yep that was Carl Stanley, who warned Rush of the sounds.

So hard to watch Stockton Rush with all his confidence talking about what he is going to do in case of an emergency. So sure life would go on. I don’t think anywhere in history we have been able to view, almost as if slow motion, a person describing his own demise. 🤕

@bdickinson6751

10 ай бұрын

I kind of liked the bicycle pump thingy he was explaining. 🤣

@StocktonCrushedd

10 ай бұрын

All while wearing that ridiculous child's helmet 😂

@asterpw

10 ай бұрын

At least we know he was genuine in his belief. He bet his own life that the submersible was safe. He wasn't lying to his customers, he was just an idiot.

@dx1450

10 ай бұрын

Yeah, he talked about the porthole making a sound which would give a warning if it was about to fail, plus he had that electronic warning system which let him know that the hull was about to fail... unfortunately if something's about to fail like that you have at most a matter of seconds to react. You're really not going to have enough time to save the ship.

@bdickinson6751

10 ай бұрын

@@StocktonCrushedd The bicycle helmet and pump that he was talking about were a package deal at Target. 😉

Just a great job putting all these important videos together and pack all this info into 12 minutes, just great! thank you

well done again! Finally someone that actually shows a simulation ( or two) in their post when they claim it in the title. Love your posts on this subject, you continually bring more and more new information. Kudos.

The fact that he honestly thought that you'd get a warning from the acrylic glass cracking is beyond stupid.

@Dan-xx5jq

10 ай бұрын

If I was planning to go on a trip in that sub and I heard that, I would have been out of there! Sayonara! Adios! Goodbye!

Mechanical things don't necessarily fail at the "red" points on an FEA. They tend to fail at the highest stress points. In this case, the highest stressed points was the glued interface of the shell and titanium rings. There was so many bad things happening there, its almost impossible to model it. If they did have a good bond, then the flexing of the hull under pressure would break that bond and damage the CF in the process. If it wasn't bonded, then water could ingress and get into the CF laminations. The hull would be compressed much more than the titanium, so the edge of the titanium would be cutting into the CF little by little. I'd like to see somebody model this for real and test it.

@kenho-wr5ul2rh7m

10 ай бұрын

i believe the implosion started from the back, crackling sounds were from the back

@chuckmiller5763

10 ай бұрын

That glued area started leaking early on, weakened from previous dives. The leaking added weight, the pressure under water eventually sealed the leak but that water was still adding weight and causing the sub to fall to fast and not adjust to the pressure.

@birdmannichols939

10 ай бұрын

I agree with this explanation. While the entire sub being built out of multiple compositions may have been most of what caused it to fail (it was a giant under water gasket). Perhaps even with the carbon fiber being woven differently and the entire sub being unilaterally fortified into one long piece may have even helped his odds. If using carbon fiber perhaps a couldve shape for the sub could've been explored. Such as a more triangular outward facing hull (how would this act under pressure) if he wanted to just make a real sub, he should've used titanium.

@udirt

10 ай бұрын

If you read the ORNL study Scott Manley had found it also says that the failures in their tests occurred at the glue points. Not due to failure of the bonding but because exactly what you said: so many things happening in those spots

@WarpedPerception

10 ай бұрын

Exactly!!

Even thought the porthole wasn't rated for that depth, I don't think it's the part that failed. The porthole is conical in shape, designed to resist pressure from outside the sub. They mentioned hearing "crackling sounds" from the back just before the sub imploded. I think the composite section of the sub imploded from back to front and the temporary increase in pressure within the sub blew the porthole out of its frame intact. I think it's still laying on the bottom, where they found the other debris (probably hidden in the mud and silt. Being transparent, it will be real hard to spot).

@richardhill2643

9 ай бұрын

Cracking sounds were most likely the parts of the sub that were outside of the pressure hull and being subjected to the full water pressure at that depth. Carbon fibre is not ideal for compression and will fail without warning once it exceeds its limits. . Yes, the acrylic porthole window was probably not the failure point. Most likely either the carbon fibre body separated from the Titanium ends at the join, or the carbon fibre just collapsed. At that depth, the most minute of leaks would mean game over bigtime due to the immense water pressure. The fact that the Titanium ends were recovered whole is evidence that the joins failed or the carbon fibre crushed.

@adamdavis5961

9 ай бұрын

That's what I'm thinking too. Carbon fiber went like safety glass, millions of pieces at once because of the wind of the fiber and the cold, epoxy like glass at that point. Pushed the porthole out, cleaned the lips on the titanium due to the "safety glass" shattering effect of the carbon fiber. Guessing of course. Man, talk about the wrong material for the job. Frozen carbon fiber.

@TheUnofficialMaker

Ай бұрын

that transcript has been proven fake

I appreciate your videos! Keep up the good work. I also watched all your condo collapse vids a few years ago. You are very articulate and it’s easy to understand!

”You get a huge warning before it fails”! At that point I would have turned back. What Rush was saying is actually that ”you will have enough time to know you’re going to die, but can’t do anything about it”.

@dennisstoesz

2 ай бұрын

Prayer

i think those cracks on the window in the pictures is actually just frustrated total internal reflection, which indicates an imperfect bond between the window and the substrate

@thedbcooperforum

10 ай бұрын

It's more likely the carbon failed, too many real experts believe this and the power of the implosion blew the window out... We are talking thousands of tons, physical force, not psi..10,000 tons equally around the sub.

@nahmastay3300

10 ай бұрын

Ohh that’s a new term for me. Interesting

@IANCHARLES1965

10 ай бұрын

I saw what looked like a crack that actually looked like a Seagull had dropped one on the porthole. When looking at it from the outside, however, it is a tassel attached to it. Probably used to indicate direction as there can be a loss of spatial awareness in water!

Yet another fascinating vid Jeff. Please keep them coming. Very informative thank you❤

You have to also take into account that while the carbon fibre pressure vessel is being pushed inwards, that gas inside is being pressurised at the same time to many hundreds of an atmosphere... in milliseconds. The gas pressure would have killed them long before the debris. But the debris would eviscerate the bodies.

@RRRIBEYE

10 ай бұрын

The way I understand it is you are basically killed five times in about 5 milliseconds...none of which you could even comprehend! In the end, a bunch of millimeter sized shrapnel and a cloud of pink mist!

@1320fastback

9 ай бұрын

The air would of turned to plasma momentarily.

@RRRIBEYE

9 ай бұрын

@@1320fastback aka "The 1st death of 5"

@willc5512

6 ай бұрын

@@RRRIBEYE -478 health🐒🥀. U cant even die that hard on a video game.

Every video I've seen of Rush championing this farts and crafts project has alarmed me both on an individual skeptical concern moment and on a horrified collective set of moments. This guy had convinced himself he could outsmart physics, experienced engineers, grizzled old men of the sea, AND the sea itself. He'd excited about the fact that the plexiglass viewing port would distort... No.. Just NO. You don't want a plastic piece distorting at all because plastic fractures and collapses. Even my casual knowledge of deep sea submersibles lets me know this is a bad idea.... So much wrong with this guy. I expect he casually joked about succeeding or die trying, but never really thought that out to a realistic scenario. God, it's sickening.

@Kimber123

10 ай бұрын

Lol at your first line, Seriously, though, I totally agree. It's pretty ominous listening to him talk about all the fail- safe measures put in place. I, too, don't believe he thought it would fail.

@MrBen527

10 ай бұрын

Yep he was making some holy Swiss cheese!

@warpedweirdo

10 ай бұрын

Sickening, yes. But you're wrong about distortion. Distortion is a fact of life under water; there's no way around it. Even seemingly solid materials will shrink at great depth. We're accustomed to thinking of plastic as fragile, weak, but this comes from the misapplication and bad engineering of plastics in all the low-grade garbage we purchase and throw into the land-fill, as well as our mentally lumping all types of plastic together. Polystyrene isn't the same as nylon, polypropylene, ABS, PVC, HDPE, polyester, acetal, polycarbonate, acrylic, or... Each plastic has its own strengths, weaknesses, characteristics. DSV Limiting Factor uses acrylic view ports, as do many other submersibles. The problem with the view port on the Titan wasn't that it was acrylic, but that it wasn't rated to the needed depth. Rush didn't want to pay to get it rated, he just figured it would work; but he didn't actually *know*, because it wasn't properly tested. And we *still* don't know. We may never know. Would you rather deep sea submersibles used glass view ports? That would be a very bad choice of material.

@toomanyaccounts

10 ай бұрын

@@warpedweirdo you would have to use a lot more glass and you couldn't see through it

@false-set

10 ай бұрын

He was right about one thing, you are remembered for the rules you don't follow

7:08 this does not look to me like cracks. in my experience with vintage photography lenses, this looks like whatever cement was used to glue the window in on it's conical backside is beginning to separate from the titanium it was glued to. 7:47 this is not light "playing mind games", it's just coming unglued around it's edge which is terrifying.

@Unknown17

10 ай бұрын

EYE TEE APOSTROPHE ESS ALWAYS MEANS IT IS. "...to glue the window in on it is [incorrect] conical backside..." " ...it is [correct] just coming unglued around it is [incorrect] edge..." EYE TEE APOSTROPHE ESS ALWAYS MEANS IT IS.

@ether23-23

10 ай бұрын

@@Unknown17 what the hell are you on about?

@johnnyliminal8032

10 ай бұрын

@@Unknown17 “It puts the lotion on it’s skin”. Learn to word.

@hollisbabybeats

10 ай бұрын

@@ether23-23dude is fried

@MoneyManHolmes

10 ай бұрын

its*

Alan has the BEST video of the Titan. Well, all of his videos are AMAZING!

@jeffostroff

9 ай бұрын

He's the best!

My thoughts on the staff that helped construct this submersible under the direction of Rush: these people must feel terrible right now. I feel for them.

Wow. the interview with Stockton was both eerie (in hindsight) and spot on. He mentioned that the the hull failure would not be immediate, that you would hear "cracking". That is exactly what is in the communication transcript between the Titan and the surface in its last moments

@pvtjohntowle4081

10 ай бұрын

06:10 he said crackling before it's starts to crack but what is the difference? Not much if anything. If it starts to crackle at 3000 metres I would be terrified

@stephenmoro5514

10 ай бұрын

the transcript was fake made by someone on tick tock

@SRC267

10 ай бұрын

@@stephenmoro5514 has that been verified

@vicvega3614

10 ай бұрын

Why is he saying that at all? The word fail shouldn't even come out of his mouth, he was a psychopath and now a murderer

Outstanding video! Thank you. Good point about that hydraulic line. Back in my school days (not even engineering classes) for automotive technology one of the first things my senior technician at VW told me was, water will ALWAYS find a way forward. Even at sea level when you cleaned an engine and forget to dry the bore holes completely, it WILL cause a crack when tightening the Torque-to-yield screws... imagine a crank in a o-seal at -3000/-4000m...

Your videos are awesome, I love them ❤ Thanks for taking the time to do this.

@jeffostroff

9 ай бұрын

Glad you like them Kelly!

You get a huge warning in case it fails. That's great! It only takes 2 1/2 hours to resurface. Plenty of time.

Good to see he wore his interview safety helmet, that alone should have made everyone confident about this sub.

Thank you so much for this compilation and your commentary. I really like your videos and will check your sources out, too. I am learning so much.

Wow. I don't care if there's way too much video from others. You really put this together well. Thanks!

Smart, articulate, well informed, extremely experienced. Jeff honestly your videos are top shelf. You are keen on details as a good engineer doing forensic analysis is. I honestly place your videos way above the others and look for yours specifically as they come out. Of the oodles of the others that come out they often have gross errors, over emphasize "revolutionary, trend setting, etc" praising Rush, and are AI generated which is about as cold as a rock. Thank you for being a passionate but logical and balanced voice in the midst of this preventable tragedy. I do feel you are very saddened as we all are about the loss of the other "mission specialists". I commend you for your kindness and respect in the death of Rush.. He deserves to be beat up but you are a caliber of individual with insight enough to understand Rush was too much of a maverick for sure but after all he paid his debt to negligence with his life! Please keep up the good work. I come away feeling smarter after every video! God bless you and your business . A 71 year old electrical and A/C professional in Alabama's 2 cents worth as ye used to say!!😄

i was really fascinated by what happened in this and all the things that led to it. thanks for keeping us posted as new updates come along!

Enjoy watching your videos on this tragic story Jeff! Keep 'em coming!

@jeffostroff

10 ай бұрын

Thanks, I'm glad you liked it!

WOW! The Azget Industries 3D Titan video is the best Titan implosion 3D simulation I've seen. Very detailed and thoughtful. Exactly the level of sophistication I was looking for. Great Job! This one is WAAAAAAAY better than the AiTelly video everyone is raving about. That one lacks so much detail and process. This video should've gotten a lot more exposure than the AiTelly one.

I think the first scenario is the more likely one. Other passengers had reported loud gun shot type sounds during a dive. That was likely the cylinder delaminating due to pressures.

@ianmangham4570

10 ай бұрын

Most definitely

I enjoy your coverage of this! More and more things are being revealed and it will definitely help future thrill seekers, engineers, and expeditions. Your explanations are 'barney-style' - making it easy for someone like me, with no engineering background, understand what you're talking about. Thank you!!

Hey I noticed that woman made a rude comment. I just wanted to tell you apparently she doesn't know how this new media social media era thing works. Where content creators share and try to gain awareness with each other in cooperation. She is probably one of those sad souls who tunes into the mainstream news to consume her daily dose of propaganda. Thank you for including those two content creators I had not and would not have found out about them without this wonderful video. Thank you for all the hard work you do

Another great review of the incident! Remember that things generally fail at one point which then relieves the stress in the system. So the side rails probably pulled loose at one end first. Of course, additional forces would probably tear them from the other end. Maybe they are still attached to the rear ring/hemisphere?

It would be interesting to see videos from a previous successful dives to see what it was like inside and to hear any of the sounds that may have occurred during the dive.

@sburns2421

10 ай бұрын

When the lawsuits happen claiming gross negligence (invalidating the death waiver they signed), I would expect all previous dives will be examined for sounds and issues. Then have oceangate experts explain what each one was, the root cause, and how it was tested and fixed for the next five. They won’t have this documentation of course, and gross negligence should be easy to prove

Thanks, Jeff, for the update. Keep us posted please!

Thank you for all the links to these videos. Super interesting.

You have a good point. I was thinking that Oceangate always seemed to film every other dive they had made, which makes sense to use the videos for ads and promotion and such. So there would be no reason I could think of that they wouldn't film the last dive. Who knows, they may have recorded the whole thing. Time will tell on that I suppose. :)

@graftongodofmemes

10 ай бұрын

I've been thinking the same thing since the minute I heard it was gone. There's got to be lost footage of the dive right up until the last milliseconds. God how much would that footage be worth? Big bucks. 💯💥💥

@rocroc

10 ай бұрын

I don't think there is any doubt that there would be viable pictures/video in the debris field. I feel certain that some were collected. Whether you ever see them that remains to seen. They will be made available during any trials that are sure to come.

@chaseandrews9354

10 ай бұрын

100 percent they did. itll come out later im sure

@IANCHARLES1965

10 ай бұрын

I think the NTSB is involved in the investigation. They have a lot of experience getting information from damaged "black boxes" after aircraft crashes.

@johnnyliminal8032

10 ай бұрын

I wonder if there’s enough interest to look for those nuggets. It may be a time sensitive undertaking, due to currents and silt rate and corrosion and the abysal food chain. Maybe Cameron would do it. Rich guys on-board, families’? Memory viability seems low to me, of anything not mounted outside the hull. Too violent. And for those external cams, was the memory hardware out there too, or inside at the end of a wire? I’ve been trying to imagine a smaller scale lab test/experiment to see if even any of the discreet memory components (of the inside ones) could survive that sudden immense pressure spike. What a weird rabbit hole, on a Thursday evening lol. If the Akashique Record is a thing, maybe somebody will look there.

Thank you for keeping us informed!!!

@jeffostroff

10 ай бұрын

You bet Carol!

Hey Jeff. Love your stuff! Can you separate out the Champlain tower collapse and the titan into their own playlists? It's a pain to try and go back and watch them, but I didn't see specific playlists for them. Love your content! Keep it going!

Kudos to the young Lady for the superb presentation.

Outstanding analysis! Jeff is becoming a must view in understanding engineering failures. Fantastic resource!

@devilsadvocate701

10 ай бұрын

Until he says things like "the lord blessed us"... totally anti-scientific.

Thank you for the updates and keeping us posted!

First Surfside, now the Titan! Thank you! I’m going to subscribe!

Ps, thank you for your very informative, yet easy to follow and understand videos, they got me through hours of cupcake baking, making sugar/fondant flowers and decorating the cupcakes :)

Very interesting. Honestly though I don't think we will ever know down to the letter exactly how it all went down. RIP to the occupants of that tragicly poorly designed submersible that left the earth in such a horrible accident and condolences to the family and friends of those men. 🙏🕊

@nadapenny8592

10 ай бұрын

NTSB is on the case and they are extremely thorough. In about 2 years we'll have a fully detailed hundreds-of-pages report and probably an animation of what happened for sure.

@dennisnewman678

10 ай бұрын

@@nadapenny8592 but do we really want to know? What if it turns out that it was a horribly agonizing, slow and brutal death for the submersible occupants? Like they got twisted up and mangled with each other while they were still very much alive or some horrible stuff like that. It could end up being incredibly traumatizing for some people especially the family of them.

@daleburnfart6845

10 ай бұрын

There wont be a perfect reconstruction but the truth on this with modeling and experience the truth is somewhere in the middle for a person to pretty much grasp how it went down. In other words, close enough.

@amberkat8147

10 ай бұрын

RIP to all except Rush, that is.

@amberkat8147

10 ай бұрын

@@dennisnewman678 Don't worry, it wasn't. When it imploded it happened far too fast for them to process. Even if they knew something was seriously wrong and were terrified it would fail, they never had time to know the sub went when it actually did. So a bit of fear or dread, maybe being physically uncomfortable and possibly focused in the contents of the toilet bucket, would be the worst they had to experience. There was no time to experience the pain of the implosion itself. Still not the best way to go, but could have been worse. If the sub had been designed well enough to not fail due to depth and only suffered ballast/propulsion or power failure it would have been way worse as they'd have ended up stuck with no way for anyone to find them in time. They'd have died from hypoxia and hypothermia slowly in that case.

Thanks for continuing this coverage. You are now my sole KZread source for Titan related updates! So many others just repeat the same stuff or use AI voices etc. Now I can just watch your videos as well as those you recommend. 😀

@raven4k998

10 ай бұрын

well Stockton is pioneering carbon fiber now cause due to his titan sub implosion there are new computer sims being ran over titan subs implosion😃

@android584

10 ай бұрын

True Crime Rocket Science also has new content.

@andrewsimpson5436

10 ай бұрын

@sunshineravens sadly he may sound good but as for engineering fact he's wide of the mark and just another self professed expert working on nothing but speculation.

Thanks, I appreciate all of the information you can find!!!!☺

@jeffostroff

10 ай бұрын

Thanks, I'm glad you liked it!

Another awesome video. As always. Thank you.

@jeffostroff

10 ай бұрын

Glad you enjoyed it!

Personally, in my opinion I feel like its possibly started with the carbon fiber hull, then the plexiglass port hole blew because of the immense pressure towards the 2 titanium ends. If it was the port hole first I will be incredibly surprised and will eat Crow. However my intuition says it very well began at those bonded seals between the titanium and the carbon fiber hull.

@rhodaborrocks1654

10 ай бұрын

I agree with this, although the video of the recovered pieces weren't that clear, I couldn't see any of the bolts securing the plexiglass retaining ring which would suggest that it blew outwards at the time of hull failure. If the plexiglass failed and blew inwards, I would expect the retaining ring and bolts to still be in place.

@chuckmiller5763

10 ай бұрын

My engineering expertise says the glue joints seeped after a few dives. That loud popping like a small caliber handgun during the first few dives was that glue giving up. Then it seeped water, as it got deeper the pressure sealed the seeping. Until this last dive.

@pierrotA

10 ай бұрын

I'm a little annoyed with the hundred of comment affirming that it's the glue/hull that failed first without any proof. I agree that it was a weakspot, but it was not the only one (at all), and everyone seem so certain... It's truly annoying. I wonder why so many people do simulations and investigations given that every students on the planet seem to KNOW what have happen without any proof 🙄

@jaymesnin

10 ай бұрын

I think someone farted and there was to much pressure

I too, in the beginning, was also thought about the camera system and if there was some sort of recording that still is on the parts recovered. I didn't want to sound silly to ask, given the destruction of what we have seen, but I am glad you mentioned it, so maybe there is some clue that we yet to see. Keep up the good work Jeff, I really enjoy your posts.

@jeffostroff

10 ай бұрын

Thanks so much i'm glad you like the videos

I think it’s so difficult to believe that they would actually go down knowing about those cracks is so unfashionable that most won’t consider it as possible.

I had not thought about cameras. That would be so interesting if found. Thanks.

If I understand correctly I think it was mentioned that water could have forced itself between layers of the carbon fiber due to the different rates of compression between the carbon fiber and titanium, as well as the method in which the fiber was wrapped. Carbon fiber experts have weighed in and noted other wrapping methods that would have increased resistance to this scenario. Still far from a sure thing but I wouldn’t rule anything out yet

@CheeryRhymes

10 ай бұрын

Yeh I didn't know he had applied a sealant to the outside of the hull so that's one point in his favour I guess. It wasn't exposed directly to the elements and should have prevented water seeping into the outer layers assuming it was applied properly and was the right type of coating.

Salvaging footage from an exterior camera seems possible. I do have major doubts about getting anything from an interior source, because the implosion was so violent. It seems likely that any tech there was effectively pulverized on the spot. But it is still a possibility that should be explored, I fully agree.

@SloverOfTeuth

10 ай бұрын

One frame every 16 milliseconds, implosion probably took a couple of milliseconds. If it could be recovered, you'd see everything fine right up until the last frame recorded, then if it could record more, black.

@edwardallen6175

10 ай бұрын

where is the camera data stored, is it on the laptops located inside. then no.

Great information here. Thanks so much!

@jeffostroff

10 ай бұрын

Glad it was helpful!

I was wondering about the increased rate of descent that was reported as it was far faster to get to depth on that fateful Day, I wonder if there were cracks inside the carbon fibre shell so it was taking in water and making it heavier hence it dropped faster? Also affected its buoyancy when they tried to surface as was reported the rate of ascent was far slower than it should of been…. Thoughts ?

@alphax4785

10 ай бұрын

As the models show, the failure happens faster than we can process it, at the depths they were at I can't see anything 'progressive' happening such as water infiltration anywhere... until it does and done... it's like a stick of dynamite with an electric detonator.

@unknownknown7427

9 ай бұрын

A pin hole crack Will create a Vacuum chamber in the sub hull just a few square feet in volume there is no such thing as the acrylic plexiglass giving you warning as it cracks

@mattslivar5174

5 ай бұрын

Gigantic squid

Great well presented updates. Keep up the good content. love your work!

Dude has the most legit, professional, a d kind voice , channel on yt. Much appreciated for your hard work brother

The carbon fiber hull might work if the sub were constructed properly - specifically, if it had a frame supporting the carbon fiber shell from the inside. This frame could be made of high-strength steel or titanium alloy. It would prevent the shell from buckling and failing.

@meganruchwatercolors7186

10 ай бұрын

Absolutely!!!!

@raven4k998

10 ай бұрын

yeah properly like in a clean room environment with multi axis carbonfiber weave spinning for increased strength and durability but that means some serious time and work into that sort of design titans implosion goes to show what happens when you cut corners for the sake of making money

@numerical968

10 ай бұрын

This would not have worked.

@Jonny2by4

10 ай бұрын

@@numerical968excellent analysis, thanks for the input

@rpondyke2121

10 ай бұрын

Carbon fiber is useless in a compression application. Only good in tension.

That comment you made, about the cams & phones possibly recording. Really got me thinking that some footage could actually exist. I'm sure it's been thought of and betting we're never gonna see it. Unless someone pirates a copy on the web.

The crackling action on acrylic is called "crasing" which is fissures appearing in the item (windows / constructed items ) . The outer edge may have crumbled away then made an 80 lbs projectile. Window looked ok in your video. When it is crased little prismatic rainbow lines appear sunlight would make these appear. Crasing may also result If corrosive type cleaners were used this can effect the polymers.

Best shot of the apparent bunching/wrinkling is at 08:59 and it could just be the “rhino liner” but it appears to pervade the whole surface of the submersible.

I have been fascinated by your very astute analysis of the Titan Ship Implosion, Rhank you for being objective in your analysis and when injecting your own commentary you are forthright stating these things that are your opinions and those of others allowing the viewer to draw conclusions based on known evidence and hypotheses. You are a calming voice in the plethora of chatter polluting the quest for true answers so thes mistake may possibly be avoided in the future.

@brianblackford2224

10 ай бұрын

These mistakes could easily be avoided by having such a design checked and approved by an actual, properly qualified sngineer.

Thanks for the video brother 😊❤️🙏

Imagine if someday GoPro footage comes out from this. Great point on there being so many cameras on board. We should do an rov expedition for titan go pros and sd cards hhaha

That was very interesting, plus I hadn't thought of all the cameras in and around the submersible. I do hope some or even one of them can be retrieved and the pictures able to be viewed. It's sad to think that all Oceangate needed to do was use high quality stainless steel instead of carbon fiber and put the entire submersible through all the testing procedures and they would all still be here today.

@bdickinson6751

10 ай бұрын

I'm sure there are some lawyers out there dying to get their hands on this.

@jimdake6632

10 ай бұрын

Maybe.

Reminder, Negative Buoyancy equals Positive Sinkancy.

Thank you, sir for this informative video.

I remember seeing the (supposed) messaging between the surface and the sub talking about jettisoning the frame to help with ascent. While it may have been inconsequential it does seem that the frame was mounted to both titanium half spheres and could potentially have added a little more structural integrity. Unclear how they would have removed it from the sub without some sort of explosive bolt or other pretty significant event. Could have damaged the carbon fiber further in the process. Would be something if any of the videos survived. Might give a few more clues.

@Kimber123

10 ай бұрын

That's a very interesting point. I've never heard anyone mention whether jettisoning the frame could have contributed to this.

@Shadowfax2121

10 ай бұрын

Hydraulic Hand Pump, similar to brake or clutch pedals but under much more force to overcome the ocean pressure.

@station240

10 ай бұрын

I've not seen any Physical Evidence this on command frame jettison ability exists. None of the photos taken of the sub before and after the disaster show the wires/pipes required for explosive bolts or some form of retractable pins. Possible this is like the "ballast bags" which had Self-dissolving bonds securing them in place. Anyway, there is a list of 7 different surfacing mechanisms, dropping the legs is 2nd to last option.

I just wanted to say thanks for showing the excellent 3D simulation created by the young lady. Even these days, young women are sometimes overlooked in the Engineering industry.

thanks Jeff

Seen your videos on this topic! I probably won’t subscribe because other than this subject there’s nothing that I’m interested in but BUT I think your videos are very well done & very well made! Just figured I’d leave a compliment cause these videos you have made about this topic I really enjoyed watching ❤

@Juicymiketj

10 ай бұрын

Here’s a like ❤️

The glass is pressed into some kind of seal the deeper the sub goes. Under normal pressure, I would think that it is not fully pressed into the seal, so not all the surface of the glass has contact with the seal. I think what looks like cracks are either the parts of the glass being pressed into the seal under normal pressure (or the ones which are not).

@nikonmikon8915

10 ай бұрын

this is true, the "glass" was a big plug shape that fit into a hole that was shaped like a funnel. It was a wedge seal where all the surface of both are mated using lapping/polishing. They are rubbed together with abrasive material between them until their surfaces are matched all around.

I think what looks like cracks might be the acrylic window not making perfect contact with the porthole. Bubbles in the seating of the two parts could be causing the optical effect

It looks more like trapped air around the porthole suspended in whatever the bonding/sealing agent is. The air bubbles are shiny because of the total internal reflection effect. It would likely also cause crackling noises when the porthole is compressed inwards as the air is forced out. Whether it's a safety issue I don't know, but it may show deformations or irregularities in the material.

SO many tenuous components just waiting to fail…and you are basically sealed in a coffin. So even if you DO hear crackling, or get any ‘warnings’ of a problem, you not likely to get out in time and survive. (Sigh). Seems that beforehand, this is almost happily overlooked. Anyway, I look forward to these vids, thx Jeff.

I am fascinated with the possibility that IF any surviving pieces of equipment such as the external cameras survived or had storage outside of the cabin space whether we could EVER figure out specifics. Like, what time? Or a depth meter in its UI or SOMETHING. Unlikely, but if it existed or could be recovered that would be so interesting to watch.

@Turk_2023

10 ай бұрын

I wanna see an implosion with people

@jekecho-4983

10 ай бұрын

@@AC-jt9yb In cabin, or externally with other equipment stored behind the cone? Just curious.

@jekecho-4983

10 ай бұрын

@@Turk_2023 that’s not what I was saying. I was talking about the Cams outside the cabin, which would’ve never caught anyone in view.

@Turk_2023

10 ай бұрын

@@jekecho-4983 It happened, I want to see it. I think of the end of total recall where the eyes pop

I’ve watched a million submersible videos at this point with many models and opinions and tests. I personally think it was the failure of carbon fiber, primarily because of the horizontal pressure at high depths that is placed on the sides of the carbon fiber hull by the titanium domes. Carbon fiber likely did an excellent job taking on the pressure around its circular area on the outside but the sideways pressure from both dome sides weakened it at the same spots where it’s joint by the adhesives to titanium rings, and over time it micro cracked more and more until it started a chain reaction of the whole carbon fiber hull failing in a blink of an eye by implosion. Since this carbon fiber failure zone was under the titanium rings there is good chance it would have never been picked up by any acoustic sensors.