6 ms·

Oxygen is just about running out in the next few hours, they don't seem to have had any sonar contact, no cable or underwater phone. Getting something like a DS

by c00lio 3y ago

Oxygen is just about running out in the next few hours, they don't seem to have had any sonar contact, no cable or underwater phone. Getting something like a DSRV (which wouldn't really help if they are at ground level there, because it cannot dive that deep) there will take at least a day. Even if they are still alive, their chances of rescue are nonexistent.

TimothyBJacobs 3y ago
> Oxygen is just about running out in the next few hours, Official reports have been saying 40 hours a few hours ago.
- jacurtis 3y ago
  Yes there were oxygen scrubbers on-board that had an estimated endurance to provide clean air for about 5 days for 5 people. It has come out that it is wildly untested and optimistic estimate. The longest mission they had conducted onboard was 12 hours. So the theoretical limit may not be realistic. If there was panic onboard, that would increase oxygen usage dramatically, which could cut as much as 25% off the estimate (which is nearly a day in this case). In other words... it is grim.
  - dikei 3y ago
    Nitpick: it's CO2 scrubbers, not O2. A scrubber primary mission is to absorb CO2, not generate O2.
    - datameta 3y ago
      So they will peacefully fall into sleep due to hypoxia instead of a slowly rising sense of impending doom as would result from rising C02 levels.
jvm___ 3y ago
The best 'find things on the bottom of the ocean' gear is usually on a ship somewhere, but just happens to be in-between ships, but is on the Jersey islands in the English Channel. Except it still needs a military cargo plane to retrieve it, deliver it to Newfoundland and be moved by ship on location. Time isn't on their side.
jacurtis 3y ago
Yeah at this point, it seems that catastrophe struck 90 mins or so into the dive. That is when contact was lost. They were early enough into the dive that they would have abandoned the dive after losing contact, they would have only been about halfway to the bottom, and they still would need communication to even find the titanic. So if they lost contact, the mission would have been aborted inside the sub, because they wouldn't have any hope of completing the mission without the aid of the surface vessel. There are several emergency surfacing options available on the sub in addition to the primary propulsion method. If the sub lost contact, it would have surfaced. That is what happened in several other missions this company has made where communication was lost. So the fact that communication was lost and no attempt to surface was made, suggests that there was a catastrophic failure. At the pressure they were at, the smallest leak would lead to immediate implosion. The most likely scenario is that they experienced a crack or defect in the hull that lead to implosion. It was likely over before anyone onboard even was aware of a problem (or within seconds of it).
- avidphantasm 3y ago
  What “mission”? There’s no mission here. These were people with more money than sense going sightseeing where they have no business being.
  - greiskul 3y ago
    Mission is a perfectly valid word for describing an outing of a submarine, specially when most of the discussion is surrounding the technical aspects of it. Do you also get angry when a business describes something as mission critical?
    - avidphantasm 3y ago
      > Do you also get angry when a business describes something as mission critical? Not if they are doing something useful to others. Are hikers who get lost on a mission?
      - 3y ago

by c00lio 3y ago

TimothyBJacobs 3y ago

> Oxygen is just about running out in the next few hours, Official reports have been saying 40 hours a few hours ago.

jacurtis 3y ago
Yes there were oxygen scrubbers on-board that had an estimated endurance to provide clean air for about 5 days for 5 people. It has come out that it is wildly untested and optimistic estimate. The longest mission they had conducted onboard was 12 hours. So the theoretical limit may not be realistic. If there was panic onboard, that would increase oxygen usage dramatically, which could cut as much as 25% off the estimate (which is nearly a day in this case). In other words... it is grim.
- dikei 3y ago
  Nitpick: it's CO2 scrubbers, not O2. A scrubber primary mission is to absorb CO2, not generate O2.
  - datameta 3y ago
    So they will peacefully fall into sleep due to hypoxia instead of a slowly rising sense of impending doom as would result from rising C02 levels.

jvm___ 3y ago

The best 'find things on the bottom of the ocean' gear is usually on a ship somewhere, but just happens to be in-between ships, but is on the Jersey islands in the English Channel. Except it still needs a military cargo plane to retrieve it, deliver it to Newfoundland and be moved by ship on location. Time isn't on their side.

jacurtis 3y ago

Yeah at this point, it seems that catastrophe struck 90 mins or so into the dive. That is when contact was lost. They were early enough into the dive that they would have abandoned the dive after losing contact, they would have only been about halfway to the bottom, and they still would need communication to even find the titanic. So if they lost contact, the mission would have been aborted inside the sub, because they wouldn't have any hope of completing the mission without the aid of the surface vessel. There are several emergency surfacing options available on the sub in addition to the primary propulsion method. If the sub lost contact, it would have surfaced. That is what happened in several other missions this company has made where communication was lost. So the fact that communication was lost and no attempt to surface was made, suggests that there was a catastrophic failure. At the pressure they were at, the smallest leak would lead to immediate implosion. The most likely scenario is that they experienced a crack or defect in the hull that lead to implosion. It was likely over before anyone onboard even was aware of a problem (or within seconds of it).

avidphantasm 3y ago
What “mission”? There’s no mission here. These were people with more money than sense going sightseeing where they have no business being.
- greiskul 3y ago
  Mission is a perfectly valid word for describing an outing of a submarine, specially when most of the discussion is surrounding the technical aspects of it. Do you also get angry when a business describes something as mission critical?
  - avidphantasm 3y ago
    > Do you also get angry when a business describes something as mission critical? Not if they are doing something useful to others. Are hikers who get lost on a mission?
    - 3y ago