Tube🌿Timeoh wow, the Titan Sub accident investigation has a bunch of new documents on the US Coast Guard site: https://www.news.uscg.mil/News-by-Region/Headquarters/Titan-Submersible/
looks like the prototype hull failed. i can't really see the crack the report discusses but it looks like some sort of spalling or layer separation.
omg they reused the titanium domes and rings from the prototype!? also they covered the outside of the hull so there was no way to visually inspect it.
final hull testing was done to a safety factor of uhhhhhhhhhhh 1.09. that's more of a danger factor.
ahh yes unplanned environmental testing. this thing was stored, uncovered, outdoors, near the ocean, for 6 months! unbelievable.
more unplanned shock testing. the thing was pointing straight up with everyone in the sub up against the back wall, then it kept slamming into the launch platform for an hour. that must have been miserable.
what the tail cone looks like now (they sent an ROV down). it was attached to the hull but not part of the pressure vessel.
omg the CO2 scrubber system is just a plastic container (for the chemical pellets) with a PC fan hot glued on top
the onboard computers appear to be off the shelf Neousys Nuvo automotive embedded computers. wow, i've worked with these before.
i'm getting some strong "my first gamer PC rig, what do you think guyz" vibes here
got some cable pr0n for you all. 🤮 who in their right mind would trust their life to this crap. smh.
everyone remembers the game controller. the stick extensions appear to be 3D printed.
found more pics. the O rings weren't properly designed, the one on the left sits too deep because the groove wasn't machined correctly. There's also a plunge hole (presumably to get the undercutting tool in) that is a serious weak point.
the end sections of the hull, after being machined down to length, left these pieces behind, which show evidence of delamination. on the right, they put a bright light behind it and you can see it all the way through. very bad!
the flooring material (they used HDPE, high density polyethylene) was definitely not flameproof. what if some of that messy wiring shorted out and set fire to the floor? just everything about this vehicle was shoddy.
your auntifa liza 🇵🇷 🦛 🦦@tubetime am thisclose to a panic attack (no, am not joking) reading this. this was a death sentence from the very beginning.
when Walter Benjamin said that capitalism is a death cult, this is exactly what he meant.
locastan@tubetime "Fake it 'til you make it"-mentality when it comes to extreme conditions.
Daniele Pantaleo 🦥
@tubetime summary of the report: this is what happens when you let billionaires/techbros design and/or build stuff that should keep lives secure and safe.
Jeff Haluska@tubetime Sheesh, this feels more like a movie prop than something intended to go to extreme ocean depths.
We've all done hacky things but not in such unforgivable environments with risk of life for....tourism.
Bornach@tubetime They were probably thinking when has a failed O-ring ever been the weak point that led to the catastrophic failure of a hugely expensive vehicle while carrying a civilian to an extreme environment where only a tiny few humans can afford to visit?
Jack Linke 🦄
Andrew
Scott Miller 🇺🇦 🇺🇸
vxo
Rue Mohr@tubetime oh yea, they knew.
Robin ╰(ಠ_ಠ✿)╯
arceuthobium
nota@tubetime this is actually the most wild bit to me so far. Like the other stuff is mostly just being scrappy to an inappropriate degree and doing the same sort of stuff we'd do in robotics club but with lives on the line.
But the fact that someone had to sit there and manually type in all of the numbers... that's not even scrappy that's just absolutely bizrarre.
I always thought there was something funny how they had zero info on what happened to the ship... makes sense now.
fuzzface@tubetime The more I read, the more horrified I am about how slipshod this venture was.
@tubetime wow, let me guess, "select your character with joystick"
europlus 
@tubetime not IRC?
Kelsi🔭📷🌠@tubetime a may stand for acknowledge?
Marsh Ray@tubetime
GONNA STAY FOR A WHILE
KNEW THIS WAS A ONE-WAY TRIP
🌊
@tubetime ah yes, the “Madonna” controller.
@tubetime Let me guess, the line on the left is a full pressure outside pipe for sensing dive depth....
Alice Averlong🏳️⚧️@tubetime I've helped someone wire up a DIY sex machine that was designed more professionally than this nonsense
Sam Hetchler (Kg6hxm)
Darryl RammDamn it is depressing that these fucking idiots got away with crap like this. I've spent a lot of time in aviation. You see occasional stupid crap where owners or builders or the occasional A&P (licensed technician) does something wrong/sloppy/stupid but there are many ways those problems get caught and great mentoring say in the EAA.
@darryl_ramm this is beyond sloppy. this is all so bad.
Oh it's utter stupidity in so many ways. And it should be criminal to design/build/operate this with innocent passengers.And not just the project founder. If it was up to me everybody involved would be in fucking jail.
James Cameron is not a fan of the US Coast guard actions here.
James Cameron reveals new information about Titanic sub disaster | 60 Minutes Australia
Jonathan Hendry"Damn it is depressing that these fucking idiots got away with crap like this."
One of them didn’t.
The Doctor@tubetime At NASA, this will get you LARTed and fired.
Adam@tubetime What did they use for the front of that junction box? Glass? Acrylic? Were they trying to equalize pressure with those lines? The whole thing is just terrible.
bri@tubetime wonder if this has anything to do with that ‘thrusters mapped in reverse’ incident from slide 16
@tubetime it’s ok, they were going to fix it in prod
@tubetime OMFG!🙀
aburka 🫣@tubetime to be honest, at this point I was expecting a couple of TI-83 calculators and a coffee machine
Mark Eichin@tubetime wow, same! (for robots.) These look like the non-GPU versions, so entirely fanless (there's a thicker model that has the GPU in "cartridge" that plugs into a PCI riser, with 2 fans in the GPU sub-box itself, but still none in the main system, just that huge heat sink.) We mounted ours vertically, with a *lot* more clearance from the heat sink (and explicit testing of GPU airflow, which was an interesting challenge.)
@tubetime what the fuck
✧✦Catherine✦✧@tubetime that fuckin power supply
i'm looking at this and realizing that maybe i should try my hand at building a submersible. no way i'd do worse
Kevin Riggle@whitequark @tubetime homemade ROUV YouTube is _very_ hashtag-goals for me ngl
Ölbaum@whitequark @tubetime You lose balance, brush against the power supply knob, and send 60V into your 24V equipment.
I love this, so I
Adam@tubetime so, is there a record of how much duct tape went into this thing?