Oceangate Submarine Disaster - What REALLY Happened

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For Lockridge, the engineer, this has got to be the worst feeling. He was right, he tried to stop it and was fired and sued for his well founded concerns.

It's a cemetery not a circus attraction. I'm sorry for the lost and their loved ones but it shouldn't be a tourist attraction.

The way you explained that even a 7 year old can understand it...thank you for making it so clear on how things can go wrong so fast when one test one step is over looked.

The hull was made of two different materials, carbon fiber and titanium. I would assume that those materials deform differently under such extreme pressure. Wouldn't that create a huge additional risk of failure at the joint between them?

The fact that it didn't have a surface radio beacon or bottom sonar beacon is astounding. The CEO really did cut corners that cost him and his customers lives. What other corners did he cut? What possessed him to use carbon fibre for the main hull?

I’m a retired nuclear submarine mechanic of 33yrs. Every thing that I touched to repair I and a QA inspector had to sign our name and badge number and the date for every nut and bolt that was to be torqued. Like I told my apprentice, “I want you speak out if you think something is wrong because, “if you fail, I fail, if I fail you fail and that is not an option, the boat depends on us”!

You are right about the issues with carbon fiber. My father worked in aerospace, and most of what he designed is still classified so I've heard about very little of it aside from a few satellites as they were declassified and parts he worked on for the shuttle. He mentioned the issue with carbon fiber after the roof of several airplanes tore free in Hawaii. Carbon fiber cracks from the inside out and is incredibly difficult to examine unless you have the proper equipment Metal tends to show signs of surface deterioration, so one can often determine that there is an issue. When power to weight is crucial (military aircraft, etc.) the risk is worthwhile, but otherwise carbon fiber is taking a huge risk. This is especially true for a craft that will get compressed to this extent. Each pressure cycle could be doing serious damage without the company being aware.

Wow! This video explained in more detail and was easier to understand than most videos and comments on this unfortunate disaster. Well done! Thank you so much.

Great video. I’m a Mechanical Engineer with 40 years of experience and am appalled at what the owner of OceanGate did with this project and the lack of following basic engineering protocols and procedures to verify the safety of the vessel for multiple dives with passengers. If the owner wanted to risk his life fine. But I’m sure the Father did not understand the risk he was undertaking with his son. The saying “You don’t know what you don’t know” is so true. What the owner did is criminal in my opinion.

Old retired Engineer here, mostly worked in Aerospace. I think you covered this very well. I would like to touch on 2 points if I may. First off is redundancy. When we build experimental aircraft, we try to figure in back up systems. You touched on this with the inability to navigate, locate, and exit the craft. Unlike most airliners flying today that have a whole backup system for comm, hydraulics, navigation, even the artificial horizon, this craft had little to no backup systems, from what I have seen. Second is the fact that Engineers get constantly surprised even on the simple things. I recall that the Galaxy C-5 Starlifter was found to have the main supports turned to powder on the inside, showing no signs of stress on the outside. The only way to determinate this was through a destructive test. While Carbon Fiber is a remarkable material, it is not a "one size fits all" material. The people probably never knew what hit them. From what I was told, the implosion took 2 nanoseconds, and it takes 4 nanoseconds for your brain to register pain from your nerves. Thank you your thought out presentation, I think you covered it very well. Also for letting me put my 2 cents in. Smiles.

i appreciate the video and the way it was formatted! i never heard of your YT channel before, but i appreciate the way you convey the story with an engineering perspective a lot of the internet (mostly social media) likes making jokes out of tragic events like this. comedy and tragedy are closely linked so i understand it. levity is also important for me. but something about the uncanny horror of what these people experienced in the last minutes of their life just makes the jokes stir me the wrong way. the internet's been a somber place wherever i see jokes like this. that said, hearing from different engineer YT channels who discuss the events and mechanics involved, and place blame on the malpractice that was involved has been helpful for me, and i think many others, to understand the depths of the tragedy and how avoidable it should have been. all that aside, thank you again for the video, and the time involved in making it!

Great presentation! Thank you for that thorough explanation as to what happened. At the end of the day, five lives were lost and no amount of money in the world will bring them back.

I just feel extremely bad for the young man that perished in this disaster. He didn't even want to go but he wanted to bond with his father so much he threw out his fears and went anyway. That bothers me a lot.

The thing I find the most unforgivable, is that the son didn't want to go, but he felt pressure to please his dad, and went. That's what's the real tragedy.

What a fantastic and precise explanation of what happened to Oceangate Titan. Thank you so much!!

Just stumbled on your show in my feed! Super informative and eye-opening. New subscriber and I've shared to a couple of friends! Thank you for the hard work and the content! Rest in peace to the souls that needlessly lost their lives do the to the careless owner.🙏💔😔

My heart goes out to the young 19 year old who was terrified, but reluctantly went on this trip for his father. RIP.

Passengers said they could hear cracking when they were in the sub. One guy said he was allowed to drive it and could tell when he was going deeper because the cracking sounds would increase. When you hear cracking, you're hearing the fibers of the carbon fiber breaking OR you're hearing the resin that holds the fibers together breaking or both. When you hear cracking, your carbon fiber part is now weaker, even if you can't tell there is anything wrong with it by looking at it.

Very good video. I liked the way you have explained this very unfortunate disaster. These people didn't have a chance and never knew it. Very sad and the people that own it are LIABLE as you can be. No doubt.