This may have already been known/discussed, but the NTSB showed that the two hulls were of completely different design: the v1 hull was monolithic (?) while the v2 hull was a series of shells bonded to each other with adhesive. Evidently these adhesive joints mostly failed during the implosion...
The NTSB has presented its materials analysis report of both Titan hulls, they tested the cut-offs as well as the wreckage.
https://media.defense.gov/2024/Sep/25/2003553505/-1/-1/0/CG-107%20NTSB%20TITAN%20MATERIAL%20ANALYSIS.PDF_REDACTED.PDF
David Lochridge (OG's former Director of Operations and author of the notorious inspection report of Titan that got him sacked) discussed this photo as it pertains to his report during today's board hearing, it's at the 1:50:37 mark of the video...
The Wired article contained another revelation about this, that the titanium domes and interface rings were not new to the second (disaster) hull, they were the same ones used with the first hull (the one from the gluing video?) How were they removed and how were the surfaces prepped?
The...
Triton is quite literally in a different class than Oceangate, that's all that needs to be said.
Since the vehicle is seen only in computer renderings thus far, I had wondered if anyone actually intended to place an order for one.... I suppose we now know.
The idea of that giant acrylic...
I, too, thought there was something wrong about how the interface rings shattered in the simulation.
I didn't look closely enough to see if the rings had their material set to Titanium or CFRP.
Perhaps he set the strength of the adhesive connecting the Ti to CFRP to be far higher than it was...
I updated my cross-section of the hull based on more recent images and videos. Here it is along with some others I have seen:
1 - at top is my latest impression (I think my interface ring is slightly too wide from left to right and I don't think the bolting flanges are necessarily of different...
@Brian Malone
The tube certainly seems sturdy; I've wondered how it was handled after manufacture. We've seen the video of them adhering an end cap; but how did they adhere the other end cap and then flip it over?
They were certainly pushing the envelope, but it seems that more funding and...
@SnTMan
Would be fascinating to learn the exact procedures that were carried out, but unfortunately I am sure that the parties involved will do their best to take this information to the grave.
I have been thinking about this disaster a lot; it seems that a promising avenue of submarine...
@snTMan
what would be typical material/thickness for a mandrel that is intended for leaving-in-place? A removable mandrel seems very interesting, what is it coated with to prevent sticking, is the removal destructive?
That Herald article implies a very high level of collaboration between MSFC and OceanGate. Was it all complete bollocks out of Stockton's mouth? I think NASA has stated that they "consulted" on it, correct?
Edit to add: if this was really all out of a single source and was not verified with...
An article from 2022 that names several companies that were involved in building the Titan's second hull (the one involved in the incident)?
https://www.nwyachting.com/titan-of-industry/
All of OceanGate Inc.’s submersibles—there are currently four including Titan—are developed out of the...
>Edited to embed images
Something I've been particularly interested in is the damage to the "capture rim" that is visible on the end ring being hoisted off the ship in this photo:
The outer rim was almost entirely peeled away from the end ring. Very interesting failure, what does it suggest...
