Zitat Titanic tourist sub search 'a challenge' - US Coast Guard
Rear Admiral John Mauger of the US Coast Guard has said the search for a Titanic tourist submersible has been made more complex by the "remote" area where it went missing.
The vessel had five people on board and began its dive on Sunday morning.
Zitat Andrew @Cosmic_Andrew1 Rescuing people in 13,000ft of water without months of prep time is impossible. It’s like if an Apollo mission crash landed on the moon, there is nothing anyone can do to help. 11:40 PM · Jun 19, 2023
In Arthur C. Clarkes spätem Roman "The Ghost from the Great Banks" (1990) - das ist übrigens das Buch, das "Y2K" berüchtigt gemacht hat - geht es um die Hebung des zerbrochenen Wracks - mit zwei verschiedenen Methoden. Die eine besteht darin, den vorderen Teil zu vereisen & diesen Block dann kontrolliert an die Oberfläche aufsteigen zu lassen. Gegen Ende des Romans kollidiert ein Tiefseetauchboot, das diesen Prozess vor Ort überwachen soll, mit diesem Tiefsee-Eisberg. Als Rettungsmethode ist die Freisetzung der Druckkugel vorgesehen; ohne Garantie, daß der Pilot die wilde Fahrt übersteht.
Zitat The submersible disappeared in a portion of the ocean with a depth of roughly 13,000 feet. Admiral Mauger said the occupants would theoretically have between 70 to 96 hours of air as of late Monday afternoon.
Searchers are “making the best use of every moment of that time,” he said.
The submersible is operated by OceanGate Expeditions, a company that offers tours of shipwrecks and underwater canyons. It said on its website that an expedition was “currently underway.”
“Our entire focus is on the crew members in the submersible and their families,” a statement said. “We are deeply thankful for the extensive assistance we have received from several government agencies and deep sea companies in our efforts to reestablish contact with the submersible.”
Admiral Mauger said that one of the people onboard was the submersible’s pilot. The other four were what he said the company called “mission specialists,” but he did not have details about what that meant.
Hamish Harding, the chairman of the aviation company Action Aviation, is among those aboard the missing submersible, according to Mark Butler, the company’s managing director. Mr. Harding wrote on his Facebook page on Saturday that a dive had been planned for Sunday: “A weather window has just opened up,” he wrote.
The chief executive of OceanGate, founded in 2009, has compared its project to the booming space tourism industry. Its customers pay $250,000 to travel to the wreckage on the seabed, more than two miles below the ocean’s surface.
Und jetzt muß ich etwas auf Recherchetauchfahrt gehen. Ein russisches Tiefseeboot (es dürften nur 2 oder 3 in Frage kommen), hat 1992 (oder 93/94) dem Wrack eine Visite abgestattet, und die beiden Besatzungsmitglieder haben in 3 km Tiefe die russische Übersetzung des Romans ("Призрак исполина") für den Autor (!) signiert. (Ich habe die genauen Daten aber nicht mehr freihändig im Hinterkopf...)
PS. Das gibt's nicht...
Zitat Between 29 July and 4 August 2019, a two-person submersible vehicle that was conducting research and filming a documentary crashed into the shipwreck. EYOS Expeditions executed the sub dives. It reported that the strong currents pushed the sub into the wreck leaving a "red rust stain on the side of the sub." The report did not mention if the Titanic sustained any damage.[273]
Zitat Es ist etwas für Abenteurer: An Bord eines U-Boots können „Titanic“-Fans dem berühmten Wrack ganz nahe kommen – für viel Geld. Doch nun ist die kleine „Titan“ selbst verschollen.
Laut britischen Medien befindet sich unter den Passagieren der britische Milliardär und Geschäftsmann Hamish Harding. Nach Angaben des „Independent“ bestätigte sein Stiefsohn Brian Szasz auf Facebook, dass Harding vermisst wird: „Meine Gedanken und Gebete sind bei meinem Stiefvater Hamish Harding, dessen U-Boot auf dem Weg zur Titanic verschollen ist. Die Rettungsmission läuft.“
Noch gestern hatte Harding auf Instagram ein Bild gepostet, wie er ein Banner mit der Aufschrift „Titanic Expedition Mission V“ signiert. Dazu schrieb er: „Ich bin stolz zu verkünden, dass ich bei der RMS TITANIC Mission von @oceangateexped als Missions-Spezialist dabei sein werde.“ Weiter schrieb er, dass aufgrund von schlechtem Wetter dies wahrscheinlich die einzige Fahrt zur Titanic dieses Jahr sein wird. Es habe sich gerade ein gutes Fenster aufgetan, sodass man morgen früh den Tauchgang versuchen wolle. Bis dahin seien noch viele Vorbereitungen zu treffen. „Mehr Updates folgen, WENN sich das Wetter hält.“ Seitdem hat er nichts mehr gepostet.
Zitat von Ulrich Elkmann im Beitrag #1 Und jetzt muß ich etwas auf Recherchetauchfahrt gehen.
Locus: The Newspaper of the Science Fiction Field, Issue # 369, Vol. 27, No. 4, October 1991, S. 64:
Zitat Dear Locus, Delighted to report that a copy of The Ghost from the Great Banks was taken down to the Titanic on July 15, aboard the Russian research submarine Mir, and duly stamped and certified by pilot and co-pilot at a depth of 3795 metres.
I now eagerly await copies of Earthlight to be brought back from the moon, and Sands from Mars...
Arthur C. Clarke
Die "Mir-1" war übrigens auch das Tauchboot, mit dem James Cameron himself im September 1995 zum Wrack der Titanic abgetaucht ist. https://www.wired.com/1998/02/cameron-3/
Mutterschiff Akademik Mstislaw Keldysch.
"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire
Zitat John Scott-Railton @jsrailton What's happening at the #Titanic site will likely be a tragedy.
@OceanGate's page on why they didn't seek certifications / classing for the Titan submersible & that design safety regulations are slow & constrain innovation... reads differently now 11:27 AM · Jun 20, 2023
Zitat Sal Mercogliano (WGOW Shipping) 🚢⚓🐪🚒🏴☠️ @mercoglianos The irony of this accident is that after Titanic sank, SOLAS - Safety of Life at Sea was passed. It required sufficient lifeboat capacity for all vessels, 24 hour radio monitoring by vessels & required all ships to assist. This may generate similar rules for submersibles. 2:25 PM · Jun 20, 2023
Most major marine operators require that chartered vessels are “classed” by an independent group such as the American Bureau of Shipping (ABS), DNV/GL, Lloyd’s Register, or one of the many others. These groups have assembled very detailed standards for classing everything from oil tankers to auxiliary ship equipment like Remotely Operated Vehicles (ROVs). Many of these standards are based on industry practice or covered by regulations such as reserve buoyancy, the number of life rafts, the types of materials that can be used on a hull, etc.
lassing assures ship owners, insurers, and regulators that vessels are designed, constructed and inspected to accepted standards. Classing may be effective at filtering out unsatisfactory designers and builders, but the established standards do little to weed out subpar vessel operators – because classing agencies only focus on validating the physical vessel. They do not ensure that operators adhere to proper operating procedures and decision-making processes – two areas that are much more important for mitigating risks at sea. The vast majority of marine (and aviation) accidents are a result of operator error, not mechanical failure. As a result, simply focusing on classing the vessel does not address the operational risks. Maintaining high-level operational safety requires constant, committed effort and a focused corporate culture – two things that OceanGate takes very seriously and that are not assessed during classification.
Classing is Not Sufficient to Ensure Safety
Classing standards do have value. In fact, our first submersible, Antipodes, has always been ABS classed and our entire team is well aware of the classing standards and the value of using them as a benchmark for vessel performance. But by itself, classing is not sufficient to ensure safety. In part this is because classing does not properly assess the operational factors are vital for ensuring a safe dive, and because classing assessments are done annually (at best) and do not ensure that the operator follows procedures or processes that are the key to conducting safe dive operations.
Zitat ShuffleOSINT @ShuffleOSINT The more you read into it the worse it gets. The fact that the CBS interviewer has just admitted that the sub got lost for 5 hours last year and they thought about adding acoustic positioning, but *didn't* is just shocking. Amongst all the other bits that have come out about it 2:28 PM · Jun 20, 2023
Vor zwei Jahren ist Arthur Loibl, Mitglied im Deutschen Titanic-Verein, mit der "Titan" mitgefahren. Im Interview mit dem Hessischen Rundfunk berichtet er von technischen Problemen. Ein Tauchgang sei aus technischen Gründen bei 1600 Meter abgebrochen worden. Zudem habe es Probleme beim Laden der Batterie gegeben, was einen Tauchgang verzögert habe. "Batterie und Elektrik waren eigentlich von Anfang an ein Thema", so Loibl.
Zitat Das Tauchboot Titan wird seit Sonntag, den 18. Juni 2023, während eines Tauchgangs zum Wrack der Titanic vermisst. Das Boot traf am frühen Sonntagmorgen mit dem Begleitschiff Polar Prince an der Unglücksstelle der Titanic ein und begann seinen Tauchgang gegen vier Uhr Morgens Ortszeit. Der Kontakt zur Titan sei nach etwa einer Stunde und 45 Minuten abgebrochen.[4] Bereits bei vorherigen Tauchgängen der Titan zur Titanic riss die Kommunikation zum Begleitschiff vorübergehend für wenige Stunden ab. Seit dem Jahr 2021 hat OceanGate etwa 60 Privatkunden und 15 bis 20 Wissenschaftler zur Titanic gebracht.[1] Normalerweise braucht die Titan für den Abstieg zur Titanic, die in einer Tiefe von zirka 3.800 Meter liegt, etwa drei Stunden.[5] Für einen Tauchgang (Abstieg, Erkundung, Aufstieg) sind in der Regel acht Stunden eingeplant
Zitat 4h ago / 5:51 PM CEST Titan got ‘lost’ underwater last summer, CBS correspondent says
David Pogue, a CBS News correspondent, said that last year the submersible got “lost on the sea floor for a few hours,” when he was on an OceanGate expedition to visit the Titanic’s resting place.
“On my expedition last summer, they did indeed get lost for about 5 hours,” Pogue tweeted Monday. A segment on the trip aired in November.
Pogue wasn’t in the submersible, but was in a control room on a ship at the surface at the time.
He noted the submersible never lost communication with its mother ship. He said the Titan didn’t have a beacon similar to an aircraft’s emergency locator transmitter, but “such a beacon was discussed.”
“They could still send short texts to the sub, but did not know where it was. It was quiet and very tense, and they shut off the ship’s internet to prevent us from tweeting,” he said Monday. The company claimed it was to keep all channels open in case of a serious emergency, Pogue said.
Zitat Der US-Drehbuchautor Mike Reiss, der das "Titanic"-Wrack im vergangenen Jahr mit demselben Mini-U-Boot besucht hatte, schilderte der BBC die Tour. Der Kompass sei damals sofort ausgefallen und habe sich nur noch wild gedreht, "wir mussten blind am Boden des Ozeans herumrudern". Vor Beginn der Fahrt hätten alle Teilnehmer einen Haftungsausschluss unterzeichnen müssen, in dem schon "auf der ersten Seite dreimal das Wort Tod vorkommt".
Der kleine Zahlenfex, dem so etwas auffälllt, bemerkt: fast genau 50 Jahre nach dem hier:
Zitat The rescue of Roger Mallinson and Roger Chapman occurred between 29 August and 1 September 1973 after their Vickers Oceanics small submersible Pisces III was trapped on the seabed at a depth of 1,575 ft (480 m), 150 mi (240 km) off Ireland in the Celtic Sea. The 76-hour multinational rescue effort resulted in the deepest sub rescue in history. ... Pisces III originally had tail fins, which were removed to improve access and handling when the submersible was purchased by Vickers Oceanics. If the fins had been retained they would have prevented the entanglement of the towline on the craft's machinery sphere which caused the 1973 accident.[7]
Pisces III had sunk once before, during trials in Vancouver Bay in 1971. Peter Messervy of Vickers Oceanics, who would lead the rescue team after the 1973 accident, was one of the pilots who were rescued by the Canadian Defense Ministry submersible SDL-1.
Zitat Catch Up @CatchUpFeed The CEO of OceanGate, which is operating the missing Titanic tourist submarine, explains that the company didn’t want to hire any experienced “50 year old white guys” because they weren’t “inspirational.” 6:21 AM · Jun 21, 2023
Zitat OceanGate CEO Stockton Rush, who went missing aboard his Titan submersible vessel along with four other passengers on Sunday, told an interviewer he didn't want to hire a bunch of "50-year-old white guys" like other submarine companies because he wanted his team to be "inspirational."
"When I started the business, one of the things you'll find, there are other sub-operators out there but they typically have gentleman who are ex-military submariners and you'll see a whole bunch of 50-year-old white guys," Rush told a representative with Teledyne Marine.
"I wanted our team to be younger, to be inspirational and I'm not going to inspire a 16-year-old to go pursue marine technology but a 25-year-old you know who's a subpilot or a platform operator or one of our techs can be inspirational," Rush continued. "So we've really tried to to get very intelligent, motivated, younger individuals involved because we're doing things that are completely new."
"We're taking approaches that are used largely in the aerospace industry, is related to safety and some of the the preponderance of checklists things we do for risk assessments and things like that, that are more aviation related than ocean related and we can train people to do that. We can train someone to pilot the sub, we use a game controller so anybody can drive the sub." ... Former OceanGate director of marine operations David Lochridge -- one of those "50-year-old white guys" Rush wanted to avoid hiring for not being "inspirational" enough -- was fired by Rush in 2018 after he reportedly blew the whistle on OceanGate by raising safety concerns over their first-of-a-kind carbon fiber hull and other systems.
From TechCrunch,
Zitat "A whistleblower raised safety concerns about OceanGate’s submersible in 2018. Then he was fired.": David Lochridge was terminated in January 2018 after presenting a scathing quality control report on the vessel to OceanGate's senior management, including founder and CEO Stockton Rush, who is on board the missing vessel.
According to a court filing by Lochridge, the preamble to his report read: "Now is the time to properly address items that may pose a safety risk to personnel. Verbal communication of the key items I have addressed in my attached document have been dismissed on several occasions, so I feel now I must make this report so there is an official record in place."
The report detailed "numerous issues that posed serious safety concerns," according to the filing. These included Lochridge's worry that "visible flaws" in the carbon fiber supplied to OceanGate raised the risk of small flaws expanding into larger tears during "pressure cycling." These are the huge pressure changes that the submersible would experience as it made its way and from the deep ocean floor. He noted that a previously tested scale model of the hull had "prevalent flaws."
Zitat A whistleblower raised safety concerns about OceanGate’s submersible in 2018. Then he was fired. Original carbon fiber hull wasn’t rated for Titanic depths, claimed operations director Mark Harris@meharris / 9:00 PM GMT+2•June 20, 2023
Following Lochridge’s departure, the Titan was tested safely on increasingly deep dives, including to 4,000 meters in the Bahamas. However, it seems one of Lochridge’s concerns would soon be borne out. In January 2020, Rush gave an interview to GeekWire in which he admitted that the Titan’s hull “showed signs of cyclic fatigue.” Because of this, the hull’s depth rating had been reduced to 3,000 meters. “Not enough to get to the Titanic,” Rush said.
During 2020 and 2021, the Titan’s hull was either repaired or rebuilt by two Washington state companies, Electroimpact and Janicki Industries, that largely work in aerospace. In late 2021, the Titan made its first trip down to the wreck of the Titanic.
Spencer Composites says that the Titan was not using its carbon fiber hull on Sunday’s dive. Presumably apart from the hull work, one source familiar with the company told TechCrunch that not much with Titan had changed at all since 2018.
Bzw. einen verkneife ich mir denn doch nicht. Dieses "the risk of small flaws expanding into larger tears during 'pressure cycling'" ist in Clarkes "The Ghost from the Great Banks" ganz exakt der Grund, warum die Druckkugel beim Versuch, einen Notaufstieg vorzunehmen, havariert. Sh. #1.
"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire
Zitat von Ulrich Elkmann im Beitrag #7einen verkneife ich mir denn doch nicht....
Und einen zweiten: Der Grund, daß die RMS Titanic damals überhaupt gesunken ist, trotz der 30 oder so Querschotte, war, daß der Stahl des Rumpfs infolge der Kälte des Wassers spröde geworden war und die Kollision mit dem Eisberg die Folge hatte, daß der Rumpf unter der Wasserlinie über die halbe Schiffslänge hin aufgerissen wurde. Also ebenfalls Materialermüdung.
"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire
Zitat von Ulrich Elkmann im Beitrag #7einen verkneife ich mir denn doch nicht....
Der entscheidende Passus. "The Ghost from the Great Banks," Kapitel 41, "Free Ascent":
Zitat Bradley reached for the "chicken switch" and unlatched the protective cover.
"Deep Jeep calling Explorer. I've got to make a free ascent. You won't hear from me until I reach the surface. Keep a good sonar lookout - I'll be coming up fast. Get your thrusters started, in case you have to sidestep me."
Calculations had shown - and tests had confirmed - that shorn of its surrounding equipment Deep Jeep's buoyant life support sphere would hit forty klicks, and jump up high enough out of the water to land on the deck of any ship that was too close. Or, of course, hole it below the water line, if it was unlucky enough to score a direct hit.
"We're ready, Jason. Good luck."
He turned the little red key, and the lights flickered once as the heavy current pulsed through the detonators.
There are some engineering systems which can never be fully checked out, before the time when they are needed. Deep Jeep had been well designed, but testing the escape mechanism at four hundred atmospheres would have required most of ISA's budget.
The twin explosive charges separated the buoyant life-support sphere from the rest of the vehicle, exactly as planned.
But, as Jason had often said, the sea could always think of something else. The titanium hull was already stressed to its maximum safe value; and the shock waves, relatively feeble though they were, converged and met at the same spot.
It was too late for fear or regret; in the fraction of a second that was left for him before the sphere imploded; Jason Bradley had time only for a single thought: This is a good place to die.
(New York: Bantam Books, TB-Ausgabe, Oktober 1991, S. 244)
Am Wrack der "Titanic". Clarkes Nachwort zum Roman ist auf den 28. Februar 1990 datiert; nach 33 Jahren erweist sich das jetzt als seine letzte zutreffende Voraussage.
"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire
"The Ghost from the Great Banks" ist übrigens nicht der einzige SF-Roman, in dem Materialermüdung eine entscheidende Rolle für eine solche Havarie darstellt (wobei "SF" hier nur indirekt etwa mit dem Genre zu tun hat, umso mehr mit "Ingenieurskunst") Dieser andere Fall ist Nevil Shutes "No Highway." In dem Roman, 1948 bei William Heinemann in New York und William Morrow in London erschienen, geht es darum, daß es bei der Einführung der ersten Passagierflugzeugte mit Düsenantrieb zu einer Reihe von katastrophalen Abstürzen kommt. Als Ursache stellt sich die Materialermüdung der tragenden Aluminiumholme heraus.
Der erste kommerziell eingesetzte Passagierjet war die De Havilland Comet, Modell 3, ab Januar 1952 eingesetzt. 1953 und 1954 ist es zu issgesamt 26 Abstürzen (mit isg. 460 Toten) gekommen; wooraufhim die Flugzeuge bis zum Umbau 1958 Startverbot erhielten. Es war das erste mal, daß in Hangars die Wrackteile so zusammengesetzt worden sind, daß man die genauenstrukturellen Brüche, die zum Absturz geführt hatten, rekontruieren konnte. Es lag an der materialermüdung der tragendewn Aluminiumholme.
Shute (1899-1960) - der übrigens einer der Konstrukteure der englischen Luftschiffs R-100 war, das 1931 auf dem Jungeferflug abgestürzt ist, hat in seinem früheren Roman "An Old Captivity" (1940), wie Archäologen auf Grönland eine verschollene Wikingersiedlung finden - aufgrund der Träume eines jungen Mädchens, das glaubt, sich an ein früheres lebens in dieser Siedlung erinnern zu können & entsprechende Hinweise gibt. Genau an der Stelle, die sich Shute dafür auf der Landkarte ausgesucht hat, ist dann kurz nach dem 2. Weltkrieg eine solche Siedlung gefunden worden.
Shutes bekanntester Roman ist sein letzter, "On the Beach" (1957), 1959 mit Ava Gardner und Gregory Peck verfilmt. Darin geht es bekanntlich um den finalen Atomkrieg, in dem nur Australien verschont geblieben ist - bis die tödliche Radioaktivität auch dahin getragen wird. Nach der Veröffentlichung hat Shute in Interviews erklärt: Hoffentlich behalte ich nicht auch noch ein drittes Mal recht!
"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire
Zitat (((Charles Fishman))) 💧 @cfishman The big takeaways from the Coast Guard briefing on the intense search for the missing Titan submersible: • Noises were heard more than once, including today, & by more than one search plane. • US Navy underwater experts are analyzing the noises—but no insights were offered.
2/ Indeed, CG Capt. Jamie Frederick & a Woods Hole official were at pains to point out that the search ships make noises, other ships make noises, sea creatures make noises — and offered no sense what the noises might mean, except that they'd be told the sounded like 'banging.'
3/ The truth is: Those USN underwater sound experts have a pretty good idea what they're hearing. They likely have access to excellent AI & underwater sound databases, and can compare to—for instance—routine ship noises & natural noises. The search is re-focused on the noises.
4/ I would have been curious to ask: How precisely can you use the noises to triangulate a position for whatever is making them? Do the noises appear to be coming from a consistent location? How tightly can you locate the location — given underwater acoustics & what you heard?
5/ This search has reached impressive scale. Five ships are searching now. Two ROVs (remote operated vehicles) are searching the bottom now. Five more ships are enroute and will arrive between this afternoon and tomorrow morning. 'Additional' ROVs enroute as well.
6/ Back to the noises for a moment, w important question: Were the noises made in a consistent pattern? Which could be from the submersible — but also from a natural source, or from another human-made source. Original Rolling Stone reporting said banging came every 30 minutes.
7/ Capt. Frederick said he had seen that reporting, but did not know anything about the rhythm or pattern of the noises. That question was left unanswered at the briefing. Clearly CG & USN know much more about the noises than they are willing to share at the moment.
8/ Capt. Frederick said the information they have is that the ship has some food and water aboard. And that oxygen is estimated to last until Thursday morning. Some reporting says if the 5 occupants dramatically reduced their activity, they could stretch the O2 supply...
9/ The two ROVs on site can reach the bottom where the Titanic — & perhaps Titan — is. They can go that deep. Very little can go to 13,000 feet. If they find the Titan, what would happen then? Capt. Frederick wouldn't say. Perhaps ROV cameras could spot a problem or tangle.
10/ David Pogue, the CBS correspondent who went down in the Titan last December, tweeted that the submersible had 7 different, independent ways of blowing its ballast and rising to the surface. That's why the surface search is just as urgent as the underwater search.
11/ The sub could be bobbing on the surface of this vast search area. Sealed. The hatch seals from the outside with 17 bolts. Cannot be opened by the occupants. But if they find the Titan, with occupants, on the bottom — that will be a furious, careful race.
12/ If an obvious problem — like stuck ballast that could be dislodged, or wreckage from Titanic entangling them — maybe robot arms on ROV could free submersible. Could an ROV attach a cable? Ponder one small item: You need a cable of nearly 3 miles in length to get down there.
13/ Robust, manageable cables that are 3 miles long are a challenge to manage. And the cable itself weighs a lot. You need to fix a ship in place (with thrusters), then the ROV needs to take the cable down to the submersible that you've found, attach it — and then haul back up.
14/ This is serious underwater engineering and salvage stuff. Real expert operations. A small, highly skilled community. I covered the recovery of the debris in the Atlantic from the space shuttle Challenger disaster. That operation was eye-opening.
15/ And as someone on Twitter pointed out, it took 73 years to find the Titanic, which was one of the largest ships ever created. Finding the Titan submersible in the next 12 hours would itself be an astonishing achievement. Why doesn't it have a pinging emergency beacon?
16/ We muster astonishing resources to rescue people in trouble at sea. If these people were 'in trouble' in a tent city in Washington DC, we wouldn't be spending $1 million an hour to rescue them. (That number is seat-of-the-pants…low.) An interesting moral conundrum for us.
17/ Couple questions about how you would get down there w a cable & haul Titan submersible up...if you can find it quick. Here's a good Insider story explaining the basics and the ships on scene. You know those 'grab a stuffed animal' games at the fair?
18/ …A Guardian story on the question of how you get Titan back to surface if you locate it. Two critical points: • Takes 2 hours just to get from surface to bottom at that depth, in those seas. And 2 hours or so to get back. • Story says: Titan has no cable attach point.
19/ Story below... One expert Guardian interviewed says Titan does not have a good hard attachment loop to link a cable to. So the submersible would have to be 'belted' w cable, by operators working remotely. If that's the option, that's damn hard. 8:40 PM · Jun 21, 2023
Der Kleine Pessimist merkt an, daß es auch im Fall der "Kursk" vor 23 Jahren im August 2000 tagelang Medienmeldungen über "Klopfgeräusche" gab, die sich im Nachhinein als substanzlos erwiesen haben.
"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire
Zitat CBS Sunday Morning correspondent David Pogue went on the OceanGate Titan in November for an assignment, and said it was like being in a "minivan without seats." "There's a couple of computer screens and there is one round window at the end, about 21 inches across," he told NPR on Tuesday. "And when you're visiting the Titanic, you take turns looking out the porthole."
In an interview with NPR's Mary Louise Kelly, Pogue details what it's like preparing to travel on the Titan, and the potential scenarios that its current riders might have encountered.
We got in-depth tours of the Titan itself inside and outside. We learned the parts of it. There really is no safety gear in there except for a fire extinguisher and fire masks, which we practiced putting on and taking off. That's pretty much it, because there's not much you can do if something goes wrong.
What you can do is rise to the surface. And there are seven different ways to return to the surface. Just redundancy after redundancy. They can drop sandbags, they can drop lead pipes, they can inflate a balloon, they can use the thrusters. They can even jettison the legs of the sub to lose weight. And some of these, by the way, work even if the power is out and even if everyone on board is passed out. So there's sort of a dead man's switch such that the hooks holding on to sandbags dissolve after a certain number of hours in the water, release the sandbags and bring you to the surface, even if you're unconscious.
On why the missing vessel has not yet been located
We really have no idea. I mean, the waves are six feet high. It's all whitecaps. The sub itself is white. I don't know how an airplane is going to expect to find it in hundreds of miles of rough seas. So for all we know, they are floating somewhere on the surface right now. And the tragedy of that is you're bolted in from the outside. There's 18 bolts that seal you inside. You can't get out without assistance from an external crew. So that would be the real nightmare scenario: they're alive and floating and unable to escape.
On the problems he ran into during his trip
My trip was not smooth. We made it 37 feet down and then they ran into a mechanical problem and we had to abort the dive. I was devastated, and crushed, and did not see it coming. But I have since learned that these dives rarely go to plan. With each of these expeditions that OceanGate makes, they spend five days over the [Titanic] shipwreck. And typically of those five days, they managed to get down only once or twice. And this season it's been zero.
On what compels someone to take a journey on the Titan — despite the dangers
These dives take place in international waters. So there is no governing body. And I will tell you that when we boarded the surface vessel, we signed waivers that would curl your toes. I mean, it was basically a list of eight paragraphs describing ways that you could be permanently disabled or killed.
So this is not a tourist company or an airline, you know, for the masses. This is for rich adrenaline junkie adventurers who thrive on the risk. It's a lifestyle that not all of us may be able to identify with. But for them, you know, the risk is the life.
Muss ich mich eigentlich dafür schämen, dass ich das saukomisch finde?
Ernsthaft, die Ironie, dass Leute, die einen enormen technischen und finanziellen Aufwand betreiben um sich ein Schiffswrack anzuschauen selbst als Schiffswrack enden, hat Loriot-Qualität.
Zitat Submersibles typically have something called a drop weight. Mr Greig said. 'A mass they can release in the case of an emergency to bring them up to the surface using buoyancy', he said. But the fact it is not bobbing on the waves already suggests it has not been deployed.
There are also hydraulic systems, carrying 'roll weights', that are controlled inside the submarine. These don't require power either.
And if the people on board are unconscious there are weights with 'fusible links', which drop off after a prolonged period of time under water. There is also a giant airbag that can be inflated to provide buoyancy, making at least half a dozen ways that the vessel can rise to the surface in an emergency.
Did it spring a leak and implode - or was there a fire inside? What could have gone wrong with the Titan?
First: A major power cut: This would have caused instant loss of communication. Eric Fusil says that some submersibles have a backup source of energy - but it is not clear if the Titan had these - or if these also failed. Second: A fire on board: A short circuit on the instruments or controls. This could knock out the systems. It could also release toxic fumes that could knock out the five people in the enclosed space. Third: Flooding: If the hull failed due to the pressure at the depths close to the Titanic, the Titan would take on water. But the vessel does have sensors that should warn of this in advance. But if combined with a power failure, the ship could be doomed. Fourth: A crash: The Titan could become trapped or entangled with debris of the Titanic on the floor of the Atlantic. There are very strong currents in the ocean - and it is possible the vessel could find itself in a situation where its path is blocked or it is trapped.
Ich zitiere nochmal aus dem Clarke-Roman, aus demselben Kapitel, eine Seite vorher:
Zitat Even now, Bradley did not consider himself to be in real jeopardy; he was more annoyed than alarmed. Yet on the face of it, the situation seemed dramatic enough. He was stranded on the seabed, his buoyancy lost.. The glancing blow from the ascending mini-iceberg must have sheared away some of Deep Jeep's flotation modules.. And as if that were not enough, the biggest underwater avalanche ever recorded was bearing down upon him,, and now due to arrive in ten or fifteen minutes. He could not help feeling like a character in an old Seven Spielberg movie.
"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire
Zitat Wie haben Sie die Stunden an Bord der „Titan“ erlebt?
Zunächst hatten wir einen mechanischen Schaden und mussten eineinhalb Stunden an der Wasseroberfläche ausharren. Im Boot stiegen die Temperaturen auf ungefähr 50 Grad. Wir haben richtig geschwitzt und hatten keine T-Shirts mehr an. Ich brauche wahrscheinlich niemandem erklären, wie es riecht, wenn fünf Männer insgesamt zehn Stunden in einem kleinen U-Boot sitzen. Wir waren alle angespannt und haben gebangt, ob wir die „Titanic“ sehen werden oder vorher umkehren müssen.
Und dann?
Wir sind dann tiefer getaucht, ganz anders als vorher war es dann arschkalt. Die Temperatur lag bei ungefähr vier Grad. Nach zweieinhalb Stunden sind wir dann auf dem Meeresboden aufgesessen. Wir sind dann um die „Titanic“ herum, sind auf das Deck. Insgesamt konnten wir drei Stunden lang Fotos machen und diesen einmaligen Ausblick genießen. Dadurch ist auch die Spannung im Team abgefallen. Aber natürlich war die Reise trotzdem noch herausfordernd, weil es immer wieder Probleme gab.
Ein amerikanischer Journalist hat die Bauweise des Tauchboots als „MacGyversche Tüftelei“ bezeichnet. Wie haben Sie das empfunden?
Der Beschreibung des Journalisten kann ich zustimmen. Es ist schon ungewöhnlich, das Boot mit einem Spielecontroller zu steuern. Aber gut, ein echter Joystick hat letztendlich die gleiche Funktion. Wir hatten aber zum Beispiel auch das Problem, dass die Tiefenanzeige auf dem iPad nicht funktioniert hat. Als Ausgleichsgewicht war ein einfaches Baurohr mit Kabelbindern befestigt. Und wir hatten riesige Probleme, die Batterie zu laden. Deshalb hat sich unser Tauchgang um viele Stunden verschoben. Das war schon alles sehr abenteuerlich und gefährlich.
Zitat von F.Alfonzo im Beitrag #14hat Loriot-Qualität.
Wobei das Wissen, daß da, falls die Druckkapsel nicht "Great-Banks"-mäßig implodiert ist, ein paar Leute in 4 km Tiefe gerade darauf warten, in den nächsten Stunden alternativlos zu ersticken, meine Laune zum Schmunzeln etwas lädiert.
Davon ab, ist dieser Aspekt natürlich unleugbar vorhanden, vor allem, je mehr ich über diese Klapparatur erfahre, die eher beim "Yellow Submarine" oder dem Fliewatüt anzusiedeln ist als bei der Alvin, die Robert Ballard für seine ersten Tauchfahrten zur Titanic verwendet hat. Diese Firma ist das genaue Gegenteil von dem, was Elon Musk mit SpaceX unternimmt (statt des Präsens wäre hier das Futur II angemessen; den Laden wird es voraussichtlich nur noch so lange geben, bis der anstehende Prozeß zuende ist): Musk begeht bei der Entwicklung zwar auch kapitale Fehler - sh. den Spaceship-Start - aber nur zu dem Zweck, um in Zukunft alle Fehler dieser Art vermeiden zu können. Während ich bei OceanGate immer mehr das Gefühl habe, da hätten ein paar Nerds den Rumpf geerbt und den Rest im Bastelkeller oder der Garage drangeschraubt haben. Der Rumpf des Protoyps ist für Steve Fossett von Spencer Composites gefertigt worden; nach Fossetts Tod wollte Robert Bransons Firma Virgin Oceanic übernehmen und hat das Projekt aufgegeben, weil sich erwiesen hat, daß die Fiberglasschichten der Hülle mit jedem Tauchgang geschwächt würden. Die Konstruktion war für einen Piloten und 12.000 Tiefe ausgelegt. OceanGate hat die Abmessungen vergrößert und das auf 4000 Wassertiefe ausgelegt.
Wenn SpaceX hingegen die Crew Dragon mit 4 Leuten an Bord zur ISS startet, dann ist das System auch sicher. Und das ist auch der Kontrast zum Anlaß des Ganzen: der "Titanic" selbst. Das Unglück ist ja seit mittlerweile 111 Jahren, hochsymbolisch aufgeladen; mitunter könnte man meinen: nachgerade ein Symbol für die technische Moderne. Aber genau das ist es nicht in dem "Menetekel!"-Sinn, den "Kulturkritiker" da gerne ausmachen wollen: Aus Sicht der Ingenieure und Gesetzgeber war das eine ziemlich große, aber gar nicht untypische Fehlerkaskade, deren Wiederholung durch entsprechende Veränderungen vermeiden konnte. "Safety of Life at Sea" ist ja oben schon erwähnt (genügend Rettungsboote, Funkkabinen obligatorisch), Es war in den 50 Jahren vorher nicht zu Schiffsuntergängen in solcher Dimension gewkommen, so daß es keinen Druck gab, die Vorgabe, es müßten nur für ein Drittel der Passagiere (plus Besatzung) Plätze in den Rettungsbooten vorhanden sein, zu ändern. (Der andere Punkt ist, daß die Umstellung von Wind auf Kohle & die Errichtung der zahllosen Leuchttürme an den Küsten die Zahl der Havarien im Vergleich zu den Jahrhunderten vorher schon drastisch reduziert hatten.) Die Titanic wies 15 Querschotten auf, die ein solches Unglück verhindern sollten. Daß das Material der Nieten für den Stahlrumpf brüchig werden würde, konnte niemand ahnen.
Andererseits ist die Titanic eben nicht nur "Symbol," sondern auch literarisch/kulturhistorisch aufgeladen wie kein anderes technisches Symbol, wie kein Wrack, nicht nur der Moderne, sondern der gesamten Geschichte. Und hier reiht sich die winzige "Titan" absolut passend ein - schon in dem Namen steckt ja so viel Ironie, daß mein Kleiner Zyniker mal wieder "Webfehler in der Matrix!" murmelt. In der "literarischen Vorwegnahme" des Untergangs von 1912, durch Morgan Robertson, im Roman "Futility" (1898), heißt das entsprechende Schiff ebenfalls "Titan." Daß Arthur C. Clarke diese aktuelle Episode, die sich natürlich in das "Nachleben der Titanic" einschreiben wird wie die Entdeckung des Wracks durch Robert Ballard 1985, schon vor 33 Jahren vorweggenommen hat, paßt da auf eine Weise, an die keine der handelsüblichen Verschwörungstheorien ästhetisch herankommt. Nachtrag.
Zitat The submersible that went missing near the wreck of the Titanic with five people on board didn't fall under vessel safety rules because it operated in international waters, experts have said.
Stefan B. Williams, a professor at the Australian Centre for Field Robotics at the University of Sydney, told Insider that expeditions such as those launched by OceanGate were able to avoid strict safety regulations.
"I don't know of any specific regulations associated with this sort of deep-sea tourism that's starting to emerge. I think it is relatively rare that it's happening, and you can see from the reports of the cost associated with getting people onto these vessels that it's an expensive business."
Salvatore Mercogliano, an associate professor of maritime history at Campbell University in North Carolina, told the Times that the Titan didn't have to register with a country or follow rules that apply to many vessels because it was loaded onto a Canadian boat and dropped into international waters.
Zitat USCGNortheast @USCGNortheast A debris field was discovered within the search area by an ROV near the Titanic. Experts within the unified command are evaluating the information. 1/2 2/2 Information for the next press briefing can be found here: 5:48 PM · Jun 22, 2023
Zitat June 22, 2023 MEDIA AVAILABILITY: Coast Guard to hold press briefing to discuss ROV findings WHO: Rear Adm. John Mauger, the First Coast Guard District commander, Capt. Jamie Frederick, the First Coast Guard District response coordinator WHAT: The Coast Guard is scheduled to hold a press briefing to discuss findings from the Horizon Arctic’s remotely operated vehicle near the Titanic WHEN: Thursday at 3:00 p.m. (=> 21:00 MESZ) WHERE: Coast Guard Base Boston at 427 Commercial St., Boston, MA 02109 BOSTON — The Coast Guard is scheduled to host a press briefing Thursday to discuss findings from the Horizon Arctic’s ROV on the sea floor near the Titanic.
Um mal etwas Kontext zu geben: Als das britische U-Boot HMS Affray am 16. April 1951 im Ärmelkanal 25 km vor der französischen Küste gesunken ist, hat es bis zum 14. Juni gedauert, bis das Wrack in einer Tiefe von 86 Metern gefunden worden ist. Und das war 85 m lang.
Update.
Zitat von 19:03Debris is 'landing frame and rear cover from sub', expert says A rescue expert says the debris found in the search for Titan was "a landing frame and a rear cover from the submersible". David Mearns, who is friends with two of the passengers on board Titan, says he is part of a WhatsApp group involving The Explorers Club. Mr Mearns told Sky News the president of the club, who is "directly connected" to the ships on the site, said to the group: "It was a landing frame and a rear cover from the submersible." Mr Mearns says: "Again this is an unconventional submarine, that rear cover is the pointy end of it and the landing frame is the little frame that it seems to sit on." He says this confirms that it is the submersible. Mr Mearns says he knows both British billionaire Hamish Harding and the French sub pilot Paul-Henri Nargeolet. "It means the hull hasn't yet been found but two very important parts of the whole system have been discovered and that would not be found unless its fragmented," he added. Mr Mearns also spoke about the fairing of the submarine - shaped like a fishtail - and said: "If the faring is off and the frame is off - then something really bad has happened to the entire structure."
Zitat von Ulrich Elkmann im Beitrag #9 But, as Jason had often said, the sea could always think of something else. The titanium hull was already stressed to its maximum safe value; and the shock waves, relatively feeble though they were, converged and met at the same spot.
Zitat In a news conference minutes later, Rear Admiral John Mauger - who is leading the search - confirmed that a remotely operated vehicle had discovered the tail cone of the missing sub, approximately 1,600ft from the bow of the Titanic on the seafloor.
Additional debris was found nearby, with Mr Mauger adding: "In consultation with experts from within unified command, the debris is consistent with the catastrophic loss of the pressure chamber.
"On behalf of US Coast Guard and entire unified command, I offer deepest condolences to the families. I can only imagine what this has been like for them, and I hope this discovery provides some solace during this difficult time."
Zitat 23 min ago Coast Guard says officials are still working through timeline of sub's failure It will take time to determine a specific timeline of events in the "incredibly complex" case of the Titan sub's catastrophic failure, US Coast Guard Rear Adm. John Mauger told reporters. Officials are sorting through an "incredibly complex operating environment on the sea floor, over 2 miles beneath the surface," Mauger said at a news conference in Boston. He said the remotely operating vehicles searching the floor are "highly capable" and will reveal more information. Mauger said the Coast Guard will eventually have more information about what went wrong with the sub, and their assessment of the emergency response.
18 min ago Crews located 5 major pieces of debris that helped identify remains of Titan Search crews discovered "five different major pieces of debris" identified from the Titan submersible, according to an official speaking at the US Coast Guard news conference Thursday. He said the nose cone, located outside the pressure hull, was the first piece found. Then, they found "a large debris field," which had an end bell of the pressure hull. ""That was the first indication that there was a catastrophic event," the official said."
The debris is consistent with a “catastrophic implosion” of the vessel, Rear Adm. John Mauger, the First Coast Guard District commander announced. The size of the debris field discovered in the search efforts "is consistent with that implosion in the water column," according to an expert speaking at the news briefing on the Titan sub.
The location of the submersible was in an area that was approximately 1,600 feet from the wreck of the Titanic, which is an area that does not have any Titanic debris, the expert said, noting that it is a smooth bottom per his knowledge. "Again, 200 plus meters (656 feet) from the bow, and consistent with the location of last communication for an implosion in the water column. And the size of the debris field is consistent with that implosion in the water column," he said Thursday.
US Coast Guard Rear Adm. John Mauger also noted that it's too early to tell the timing of the catastrophic implosion.
James Cameron vorhin auf ABC News. Da denkt jemand genau in meinen Bahnen.
Zitat Well, I've been down there many times. I know the wreck site very well, as does my friend Bob Ballard - made 33 dives . I actually spent more time on the ship than the captain did, back in the day. On, of course, as a submersible designer myself - I designed and built a sub to go to the deepest place in the ocean, three times deeper than the Titanic. So I understand the engineering problems associated with building this type of vehicle, and all the safety protocols that you have to go through. And I think that what Bob said - 'cause I was watching: it's absolutely critical for people to get the take-home message from this, from our effort here is: deep submergence diving is a mature art. From the early sixties, when there were a few accidents, no one was killed in deep submergence - until now - is more than than between Kitty Hawk and the flight of the first 747. So we have improved. We have improved drastically over that period of time. And the certification protocols that all other deep submergence vehicles - except this one! - that carry passengers, especially paying passengers, all over the world, in tropical waters, deep coral reefs, other wreck sites, and so on - the safety record is the gold standard. Absolutely. No only no fatalities, but no major incidents, requiring all these assets to converge to a site.
Of course that's the nightmare we've all lived with, since all of us entered this field of deep exploration. We live with it in the back of our minds. But as implosion, as Bob described it, is such a violent event, is first and foremost in our minds, the pressure boundary, what they call the hull of the sub that people go inside, is obviously first and foremost in our minds as engineers. We spend so much time and energy on that. And we use all the computerized tools available today - finite element analysis. We worked on our sphere for the deep, deep vehicle that went to the Challenger Deep for over three years just in the computer before we even made the thing. And then of course we pressure-tested it over and over and over. So, you know - this is a mature art. And very many people in the community were very concerned about about the sub, and a number of the top players in the deep submergence engineering community even wrote letters to the company saying that what they were doing was too experimental to carry passengers and that needed to be certified and so on. So, I'm struck by the similarity of the Titanic disaster itself - where the captain was warned repeatedly about ice ahead of the ship, and yet he steamed ahead at full speed into an ice field on a moonless night, and many people died as a result - and for a very similar tragedy, where warnings went unheeded, to take place at the very exact site, with all the diving that's going on all around the world: I think it's really quite astonishing, it's really quite surreal. Of course, P.-H. Nargeolet, the French legendary submersible dive pilot, a friend of mine - you know, it's a very small community, I've known P.-H. for 25 years - for him to have died in this way is almost impossible for me to process.
Zitat von Ulrich Elkmann im Beitrag #17...paßt da auf eine Weise, an die keine der handelsüblichen Verschwörungstheorien ästhetisch herankommt.
Zitat Wife of missing OceanGate CEO descended from famous couple who died on Titanic, report says
A new connection has been made between the missing Titanic submersible and OceanGate's CEO. The wife of Stockton Rush, Wendy Rush, is a descendant of two first-class passengers who died when the Titanic sank in 1912, according to records retrieved by The New York Times. The tragic love story of Isador Straus and his wife, Ida, was included in James Cameron's 1997 blockbuster "Titanic." They were depicted as an elderly couple
Survivors recalled seeing the couple refuse a seat on a lifeboat when women and children were still waiting. According to the U.K. government's National Archives, Isidor refused to take a seat when younger men weren't able to do so and when he refused, so did Ida, reportedly saying "Where you go, I go." The last time they were seen, the National Archives says they were "on deck holding hands before a wave swept them both out to sea."
Rush is the great-great-grandaughter of the Straus' who also co-owned Macy's department store, according to a report. Her father, Dr. Richard Weil III, is the grandson of Ida and Isador's daughter, Minnie Straus Weil. The National Archives states Isidor’s body was recovered by the Mackay-Bennett and he was buried in New York’s Woodlawn Cemetery. Ida’s body was never recovered.
Ich denke mir das nicht aus, Aber, wie schon mal geschrieben: wer mich überzeugen möchte, daß das hier NICHT die Matrix ist, dem steht einige Arbeit bevor.
"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire
Zitat Top Secret U.S. Navy System Heard Titan Implosion Days Ago
Underwater microphones designed to detect enemy submarines first detected Titan tragedy
A top secret U.S. Navy acoustic detection system designed to spot enemy submarines first detected the Titan sub implosion hours after the submersible began its mission, officials involved inthe search said.
The Navy began listening for the Titan almost as soon as the sub lost communications, according to a U.S. defense official. Shortly aftetr its disappearance, the U.S. system detected what it suspected was the sound of an implosion near the debris site discovered Thursday and reported its findings to the commander.
Der Rest des Beitrags des WSJ ist hinter Zahlschranke; ich muß erst warten, bis das jemand von da abgreift.
Das hier war, wenn ich das richtig sehe, der 14. Tauchgang zum Wrack.
Zitat von October 8, 2022Now Rush has 13 Titanic dives under his belt: six in 2021, and seven in 2022. The plan calls for making return visits every year to document the ship’s deterioration — and document the deep-sea ecosystem surrounding the wreck.
Zitat I didn't hear about it until I woke up Monday morning. I immediately got on the phone to my other contacts in the deep submersible community. Within about an hour I had the following facts: They were on descent; they were under 2,500-3,500 meters, heading to the bottom at 3,800 meters, their comms were lost, and navigation was lost. And I said instantly: you can't lose comms and navigation together without without an extreme catastrophic event, a highly energetic catastrophic event. And the first thing that popped in mind was "implosion." So I felt in my bones what had happened. So this entire week has just felt like a prolonged and nightmarish charade, where people are running around, talking about "banging noises" and talking about oxygen and all this other stuff and the coast guard out out there with air plains. I knew that sub was sitting exactly underneath its last known depth and position, and that's exactly where they found it.
Zitat OceanGate shouldn't have been doing what it was doing. I think that's pretty clear. I wish I had been more vocal about that, but I think I was unaware that they hadn't been certified because I wasn't really studying it. I wasn't really interested. Stockton Rush asked me if I wanted to gto out there and dive the season, you know. I wasn't really interested. There was a lot of concern about this outfit and this sub. A lot of concern. Event to the extent that I wasn't involved in it because I was making "Avatar 2" at the time. But a lot of them got together and wrote a letter to OceanGate and said: You have to certify; you cannot take people down. It's irresponsible and it could lead to catastrophe.
Monday morning, when I first found out about the incident, I got a whole bunch of calls and emails. It's a small community. Within an hour and a half, I had the following information: They were on descent; they were at 3500 feet; they lost comms and tracking - the last one being the critical one. Because the transponder used to track a sub during descent and on the bottom is a fully autonomous system. It's in its own pressure housing and has its own battery power. So for them to lose comms and tracking at the same time -the sub was gone. There was no question in my mind. For days I tried to run other scenarios that could account for it. I could come up with nothing. So the next thing I was was: I contacted a few more people and I managed to track down ... you know, there are acoustic networks around, some are research, some are intelligence. We got confirmation within an hour that there had been a loud bang sat the same time that the sub and its commms were lost.
A loud bang on the hydrophones; loss of transducer or transponder; loss of comms. I knew what happened: sort of imploded. I sent emails to everybody I know. I said: "we've lost some friends. The sub is imploded. It's on the bottom in pieces right now." I sent that out Monday morning., I never believed in that technology of wound carbon fiber in a wound filament around a cylindrical hole. I thought it was a horrible idea. I wish I'd spoken up, but I assumed somebody was smarter than me, because I'd never experimented with that technology, but it just sounded bad on its face, because we make pressure holes out of contiguous material: steel, titanium, ceramic, acrylic. And so you can model it. You can do finite element analysis of it. And you know, you understand the yield properties. You understand the number of cycles it can take. But you can't do that with a composite material, because it's too dissimilar materials, you know, sort of bonded together. And so we all knew that the danger was delamination and progressive failure over time with microscopic water ingress and fatigue, what they call cycling fatigue. And we knew that if the sub passed its pressure test it wasn't going to fail on the first dive. I might fail on dive seven or, I don't know what they're at, but it's going to fail over time, which is insidious. You don't get that with steel or titanium.
Now there's one wreck lying next to the other wreck, for the same damn reason.
Cameron ist ja nicht nur Filmregisseur (& Erfinder des Terminators), sondern war nach Jacques Piccard und Don Walsh im März 2012 auch der zweite (bzw. dritte), der mit dem Tauchboot Deepsea Challenger an die tiefste Stelle der Weltmeere, das Challenger Deep, getaucht ist. Seit 2019 unternimmt Victor Vescovo mit der Limiting Factor regelmäßig Tauchfahrten dorthin; bislang waren es 19. Hamish Harding, der am Sonntag an Bord der "Titan" gestorben ist, war im März 2021 als Passagier dabei. Harding war "offiziell" auch Raumfahrer, weil er beim fünften bemmannten Flug der New Shepard von Blue Origin eine Höhe von 107 km, also über der Kármán-Linie erreicht hat - an dem Flug hat übrigens auch Victor Vescovo teilgenommen.
Ach nein... Ich nehme an, daß es bekannt ist, woher die Namen der Roboterschiffe stammen, auf denen die Erststufen der Falcon 9 von Space X acht Minuten nach dem Start landen*: "Of Course I Still Love You," "Just Read the Instructions," "A Shortfall of Gravitas." Das sind sämtlich Namen von Raumschiffen aus Iain M. Banks Space-Opera-Roman "The Player of Games" von 1988, dem zweiten "Culture"-Roman. Und woher stammt der Name für die "Limiting Factor," die sich Vescovo 2018 für 37 Millionen Dollar hat bauen lassen? Richtig: aus "The Player of Games." (* Das letzte Mal gestern Morgen um 9:30 MESZ; das nächste Mal in 12 Minuten, auf der JRTI. 42. und 43. Start von SpaceX für 2023.)
"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire
Ich dachte, das könnte jetzt nicht mehr unheimlicher (oder absurder, je nach Geschmack) werden, aber voilà:
Zitat Iron Lung dev weirded-out by their game being linked to the Titanic sub story and sales spiking: 'This feels so wrong' By Rich Stanton published 2 days ago
The 2022 lo-fi horror game sees players trapped in a sub of limited capabilities.
Global news this week has been fixated on the missing Titan submersible, with rescue teams racing against time to find a vessel containing five people that has gone missing during a tourist dive to the wreck of the Titanic. It is a story that in some ways is made for 24-hour rolling news coverage, with the fatalistic ticking of the clock on the craft's oxygen underpinning constant updates that all amount to the same thing: They haven't found it yet.
One notable element in the reaction on social media has been frequent comparisons to a breakout indie hit from 2022, Iron Lung, to the extent it became a Twitter trend. In this game you play the sole crewmember of the titular craft, navigating an alien seafloor with analogue instruments and a black-and-white camera on the sub's exterior, while something stirs outside. The game sets out to horrify and, helped enormously by the confines and limitations of the sub itself, is a terrifying experience.
Some of the references are simply mind-boggled comparisons to the game's premise, and how similar it is to elements of what's been going on with the Titan and the nature of the craft (such as Titan's occupants reportedly being bolted-in from the outside and unable to open the craft from inside). Others are black humour, such as one tweet I saw saying "new Iron Lung teaser lookin' sick" with a link to how much oxygen the craft is estimated to have remaining. Others point out that both craft can be piloted using a game controller (the Titan craft apparently uses a Logitech pad in its setup).
Zitat U-Boot-Chef verriet, dass er abgelaufene „Titan“-Teile bei Boeing kaufte
18.27 Uhr: Einige Teile des implodierten Tauchboots „Titan“ sollen aus Kohlefaserteilen hergestellt worden sein, die Oceangate-CEO Stockton Rush deutlich verbilligt von Boeing erhielt. Das berichtet Arnie Weissmann, Chefredakteur der Zeitschrift „Travel Weekly“, unter Berufung auf ein Gespräch mit Rush aus dem Mai.
Der bei dem Unglück verstorbene Rush habe Weissmann an Bord des Begleitschiffs „Polar Prince“ auf eine Zigarre eingeladen, als beide im Mai auf besseres Wetter für einen Tauchgang der „Titan“ warteten. Dieser fand schlussendlich nicht statt und wurde auf den 18. Juni verschoben - das Datum, an dem das Tauchboot dann zur Titanic aufbrach und schließlich implodierte.
„Er sagte, er habe die Kohlefaser, aus der die ,Titan‘ hergestellt wurde, mit einem großen Preis-Nachlass von (Flugzeughersteller, d. Red.) Boeing bekommen“, berichtet Weissmann, „weil sie ihre Haltbarkeitsdauer für den Einsatz in Flugzeugen überschritten habe.“
Als er bei Rush nachfragte, ob das ein Problem sei, habe dieser bejaht. „Er antwortete, dass diese Daten weit vor ihrer eigentlichen Zeit festgelegt sind und dass Boeing und sogar die Nasa an der Konstruktion und Erprobung der ,Titan‘ beteiligt gewesen seien.“ Offenbar war Rush überzeugt, dass die Teile trotzdem noch nutzbar seien.
Gegenüber „Travel Weekly“ soll Boeing eine Zusammenarbeit mit Oceangate dementiert haben. Es gebe zudem keine Aufzeichnungen über einen Verkauf an das Unternehmen.
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