Register a SA Forums Account here!
JOINING THE SA FORUMS WILL REMOVE THIS BIG AD, THE ANNOYING UNDERLINED ADS, AND STUPID INTERSTITIAL ADS!!!

You can: log in, read the tech support FAQ, or request your lost password. This dumb message (and those ads) will appear on every screen until you register! Get rid of this crap by registering your own SA Forums Account and joining roughly 150,000 Goons, for the one-time price of $9.95! We charge money because it costs us money per month for bills, and since we don't believe in showing ads to our users, we try to make the money back through forum registrations.
 
Prokhor Zakharov
Dec 31, 2008

This is me as I make another great post


Good luck with your depression!
turns out the company used to have a guy who safety tested the deathtube but when he said it wasn't safe they just fired him then sued him when he told people it wasn't safe

https://www.foxbusiness.com/technology/oceangate-company-behind-missing-titanic-tourist-sub-once-subject-lawsuit-safety-complaints

quote:

"Rather than address [Lochridge’s] concerns or undergo corrective action to rectify and ensure the safety of the experimental Titan, or utilize a standard classification agency to inspect the Titan, OceanGate did the exact opposite – they immediately fired Lochridge," the counterclaim states. "OceanGate gave Lochridge approximately 10 minutes to clear out his desk and exit the premises." 

Adbot
ADBOT LOVES YOU

Droogie
Mar 21, 2007

But what I do
I do
because I like to do.




An audible, concerning crack forces silence over all occupants of the tube. A billionaire casts a glance around the space, perceiving a light come on, just a millisecond before he never perceives anything again.

Vincent Van Goatse
Nov 8, 2006

Enjoy every sandwich.

Smellrose
Those five dudes are dead right now. That submarine had worse build quality than experimental subs from the nineteenth century.

https://www.youtube.com/watch?v=puEXCyqkEKA

Impossibly Perfect Sphere
Nov 6, 2002

They wasted Luanne on Lucky!

She could of have been so much more but the writers just didn't care!
I guess not all billionaires get a bail out.

meat police
Nov 14, 2015

is the ship okay?

Prokhor Zakharov
Dec 31, 2008

This is me as I make another great post


Good luck with your depression!
a lot of people like to say 'eat the rich' but only crabs have had the guts to follow through

Lil Swamp Booger Baby
Aug 1, 1981

This is unfortunate and terribly sad, if only they had the ability to do a couple more journeys, maybe construct a few more of these, and then there could have been dozens of millionaires and billionaires who got instakilled instead of just a handful.

First of May
May 1, 2017
🎵 Bring your favorite lady, or at least your favorite lay! 🎵


They called it the Titan more like the Tighten.

Impossibly Perfect Sphere
Nov 6, 2002

They wasted Luanne on Lucky!

She could of have been so much more but the writers just didn't care!

Lil Swamp Booger Baby posted:

This is unfortunate and terribly sad, if only they had the ability to do a couple more journeys, maybe construct a few more of these, and then there could have been dozens of millionaires and billionaires who got instakilled instead of just a handful.

https://www.theonion.com/coast-guar..._source=twitter

Commander Jebus
Sep 9, 2001

You came in that thing? You're braver than I thought...

Bad Purchase posted:

it did have INS, so the operator on board would've had some idea where / how deep they were, but it lost comms with the surface. this was apparently expected and happened on a previous dive, but in that case contact was regained when they began to surface at the end of the dive.

comms ending at 1:45 doesn't necessarily mean that's when a failure occurred, though it's not a bad guess. i read something about it sending an acoustic pulse every 15 minutes, and by now i assume they've had multiple ships listening for any sign of it in a wide area and haven't heard anything. that to me is the biggest indicator that it's not simply lost, it's destroyed or completely disabled.

Fun fact, INS is fine for open ocean nav but most navies don't rely on it for dived navigation once you get closer to shore. Current Ring Laser Gyro / Fiber Optic units are orders of magnitude better than the older mechanical ones but they still drift too much to rely on as a sole positional source.

Different countries call it different things, but most dived navigation is done with an expanding oval, based around your last gps fix, and your dead reckoned position and speed. The calculation of which is based on a number of factors including your speed and time underwater between gps fixes. The sub is considered to be anywhere within that expanding oval, not necessarily where the INSs are saying you are.

INS doesn't tell you how deep you are, you've got a pressure/depth sensor for that.

Deptfordx
Dec 23, 2013

https://en.wikipedia.org/wiki/Hamish_Harding

drat. This guy had already been to the bottom of the Marianas Trench in an actual no-poo poo properly designed submersible*.

https://en.wikipedia.org/wiki/DSV_Limiting_Factor

He had personal, previous experience of what those sort of depths actually required!

And he still got in the obvious death-trap.


*Spherical Titanium pressure hull, of course.

Klyith
Aug 3, 2007

GBS Pledge Week

Three Olives posted:

I think one of the most interesting military secrets that we know that exists but have no loving clue about it besides that it is certainly a capability that we have.

There is another way of communicating with subs underwater, Extremely Low Frequency radio waves.

https://en.wikipedia.org/wiki/Extremely_low_frequency

However, as far as we know, the US has decommissioned our ELF facilities, which are really loving difficult to hide, so how do we communicate with our subs now? :iiam:

Either we have come up with some super secret novel way of creating EFL radio waves or we have something crazy secret like working quantum entanglement communication.

quote:

In 2004, the Navy shut down both transmitters, with the explanation that very low frequency (VLF) communication systems had improved to the point that the ELF system was unnecessary.

Also like the main reason for having ELF communications with subs was to stay in contact with SSBN subs that stay deep submerged for months at a time during the cold war. These days the likelihood of needing to order a revenge strike against a surprise massive first strike attack is seen as low.

Buce
Dec 23, 2005

ComfyPants posted:

Billionaires learn one weird trick for getting a camel to pass through the eye of a needle

loving lol

happyhippy
Feb 21, 2005

Playing games, watching movies, owning goons. 'sup
Pillbug

Impossibly Perfect Sphere posted:

I guess not all billionaires get a bail out.

Three Olives
Apr 10, 2005

Don't forget Hitler's contributions to medicine.

Klyith posted:

Also like the main reason for having ELF communications with subs was to stay in contact with SSBN subs that stay deep submerged for months at a time during the cold war. These days the likelihood of needing to order a revenge strike against a surprise massive first strike attack is seen as low.

Yeah, I've also read that it is extremely unlikely that VLF has improved to similar capabilities because it is a physics limit and not a technological limit.

source posted:

Nukewatch said the Navy's closure announcement, while welcome, raises more questions than it answers. The Navy said " improved technologies" and "changing requirements of today's Navy" made ELF obsolete. However, "very-low-frequency (ELF) alternatives to ELF have been around for 30 years and the 'changing requirements' refer to the end of the cold war that happened 14 years ago," LaForge said.

Three Olives fucked around with this message at 23:34 on Jun 20, 2023

Klyith
Aug 3, 2007

GBS Pledge Week

Deptfordx posted:

https://en.wikipedia.org/wiki/Hamish_Harding

drat. This guy had already been to the bottom of the Marianas Trench in an actual no-poo poo properly designed submersible*.

https://en.wikipedia.org/wiki/DSV_Limiting_Factor

He had personal, previous experience of what those sort of depths actually required!

And he still got in the obvious death-trap.


*Spherical Titanium pressure hull, of course.

Yet another billionaire nerd who names their expensive toys after Iain M Banks scifi spaceships, ignoring that Banks was a socialist and the greedy rich motherfuckers in the books are villains.

Prokhor Zakharov
Dec 31, 2008

This is me as I make another great post


Good luck with your depression!
actual scientists watching the news:

Bad Purchase
Jun 17, 2019




Commander Jebus posted:

INS doesn't tell you how deep you are, you've got a pressure/depth sensor for that.

you sure INS doesn't tell you depth? do they make special ones for ocean use that aren't 3-axis? i'm a bit familiar with their use in aviation (not super versed, i've worked on software that collects that data stream from a GPS/IMU, but don't really know all the math that goes into combining them into a final result), but i know it worked in all 3 axes.

or do you just mean they would ignore the INS depth reading in oceanic use and rely on pressure instead? i could see how converting pressure to depth would be more accurate in the long run, since the IMU accumulates error from the moment you start using it. while whatever error there is in pressure to depth conversion would stay about the same the whole time.

Bad Purchase fucked around with this message at 23:41 on Jun 20, 2023

Tree Bucket
Apr 1, 2016

R.I.P.idura leucophrys

ComfyPants posted:

Billionaires learn one weird trick for getting a camel to pass through the eye of a needle

astonishing

holefoods
Jan 10, 2022

going to start a $125k submarine tour but just tell them that we’re diving and it’s just like star tours

Last Chance
Dec 31, 2004

ComfyPants posted:

Billionaires learn one weird trick for getting a camel to pass through the eye of a needle

Lmfao

Three Olives
Apr 10, 2005

Don't forget Hitler's contributions to medicine.
Doesn't the military have the ocean floor pretty extensively mapped at this point? There are obvious reasons to avoid active sonar, but I feel like they probably have something like TERCOM via sonar if they really needed to.

Sydin
Oct 29, 2011

Another spring commute

ComfyPants posted:

Billionaires learn one weird trick for getting a camel to pass through the eye of a needle

they can't keep getting away with it!!!!!

iSimian
Jan 19, 2008

Well, there's your problem!

Shishkahuben posted:

The downside here is that if you survive you get a boner every time your ears pop

Oooof

pig labeled 3
Jan 3, 2007

Three Olives posted:

Doesn't the military have the ocean floor pretty extensively mapped at this point? There are obvious reasons to avoid active sonar, but I feel like they probably have something like TERCOM via sonar if they really needed to.

They probably don't really need to

wet_goods
Jun 21, 2004

I'M BAAD!

Danger - Octopus! posted:

Pretty disappointed that news sites don't all have a big live timer ticking down until the air runs out tbh

Playing the sonic water level music over it

Henry Lee Mucus
Dec 11, 2003

Just got back from tossing five or six car batteries in the ocean, hope one reaches our suffering friends :)

Bad Purchase
Jun 17, 2019




Three Olives posted:

Doesn't the military have the ocean floor pretty extensively mapped at this point? There are obvious reasons to avoid active sonar, but I feel like they probably have something like TERCOM via sonar if they really needed to.

you can get a job doing this and be referred to as a sounding professional

Three Olives
Apr 10, 2005

Don't forget Hitler's contributions to medicine.
https://twitter.com/cnni/status/1671277862278643712

Grey Cat
Jun 3, 2023

Doing stuff and things


Bad Purchase posted:

you can get a job doing this and be referred to as a sounding professional

I prefer the term Sounding Technician.

Henry Lee Mucus
Dec 11, 2003


Your majesty, they got assploded

Sydin
Oct 29, 2011

Another spring commute

Three Olives posted:

Doesn't the military have the ocean floor pretty extensively mapped at this point? There are obvious reasons to avoid active sonar, but I feel like they probably have something like TERCOM via sonar if they really needed to.

Up until pretty recently only something like 5% of Earth's seafloor had been mapped. In 2017 an international project called Seabed 2030 launched with the goal of, shockingly, mapping the full sea floor by 2030. Most of their data apparently already existed and they just sourced it from governments/research labs/etc, anyway now we're closer to something like 20-25% mapped, which is a huge stride in just six years but still nowhere close to having the entire ocean floor mapped out. That said I have to imagine the area around the Titanic wreck is fairly extensively mapped given how much of a point of interest it is.

kalleth
Jan 28, 2006

C'mon, just give it a shot
Fun Shoe
My word, the designers of the sub are absolutely full on morons.

https://youtu.be/4dka29FSZac is a pro-click. In addition to not having a window certified to that depth, and using carbon fiber instead of actual pressure vessel material, they...

  • Hired fresh grads because they were cheaper to "inspire" the next generation (but apparently failed to hire any subject matter experts)
  • Never did a "test depth" dive to anywhere deeper than the titanic, not once
  • Have no way to ventilate the air in the cabin at all in the event of toxins / a fire
  • Have no record of any validation of the life support material
  • Chose to use that loving text message comms system because the CEO was tired of being distracted by voice messages

These dudes are all dead. The loving thing exploded.

Raskolnikov38
Mar 3, 2007

We were somewhere around Manila when the drugs began to take hold

Henry Lee Mucus posted:

Your majesty, they got assploded

all the kings horses and all the kings men
couldnt put hamish harding back together again

Raskolnikov38 fucked around with this message at 23:57 on Jun 20, 2023

Bad Purchase
Jun 17, 2019




the question about mapping the sea floor just comes down to what resolution you mean. there are obviously coarse maps of the whole thing.

Sydin
Oct 29, 2011

Another spring commute

kalleth posted:

  • Have no way to ventilate the air in the cabin at all in the event of toxins / a fire

These dudes are all dead. The loving thing exploded.

Better hope they exploded because if not the inside of that thing is a loving rear end swamp by now.

Shishkahuben
Mar 5, 2009





ComfyPants posted:

Billionaires learn one weird trick for getting a camel to pass through the eye of a needle

you are the funniest person alive, I love you

DNAmage
Oct 8, 2005

Occult Scientist
Cannot turn to attack.
He mixes biotech and sorcery with sinister results

Three Olives posted:

Doesn't the military have the ocean floor pretty extensively mapped at this point? There are obvious reasons to avoid active sonar, but I feel like they probably have something like TERCOM via sonar if they really needed to.

A US sub ran into an undersea mountain in 2021. So, maybe not?

i must compose
Jul 4, 2010

Until the lions have their own historians, the history of the hunt will always glorify the hunter.
I was really freaking out thinking this was horrible and worrying about the people onboard then I saw that it costs 250,000 dollars for a trip and that everyone on board is executive of something or other basically and now my empathy kind of is flagging.

Adbot
ADBOT LOVES YOU

BAGS FLY AT NOON
Apr 6, 2011

A Soft Nylon Bag

kalleth posted:


These dudes are all dead. The loving thing exploded.

Imploded

  • 1
  • 2
  • 3
  • 4
  • 5