Hope for the Sub ?
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Its a bit dark down there
They have until thursday lunchtime til the oxygen runs out; even if they locate the sub they'll have to get down there and back within 24 hours. It'll be a miracle to get them out alive.
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Seemingly it only takes 2 hours to get down there but that's with everything on site and them pinpointed . Then you have to grab it somehow and get both back to surface. Also the build up of co2 is a problem
Okay; two hours there and back and less than 28 hours to go. So, a 24 hour window with everything in place. Sounds like a job for Tom Cruise and the MI crew.
I'm surprised that it doesn't have a safety feature that it would naturally rise to the surface.
Andy
Andy
Even if it could get near enough to the surface, they can't get out because there's no door and they have to be bolted in to the thing. I don't think I could get into something like that.
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When you start to look at the limitations of Sonar scanning esp at that depth it really is a needle in a haystack.
The last ping was approaching the wreck. I still think they suffered a power failure of sorts as the sonar comms stopped, indicating some sort of failure either the power or other issue, had they been tangled in some sort of wreck, i would say comms would still be possible.
Limited knowledge of their setup indicates there may not be much in the way of contingency backup in the event of power failure, unlike aviation and military architecture where multiple levels of redundancy are a must for all components it seems the failure system that would trigger a resurface was also affected here, either by sharing the same power source which failed and or signalling to invoke resurface was unable to activate again due to the lack of redundancy in the design.
This is my theory as the USCG(Coast guard) tweeted they were receiving banging noises over sonar monitors which confirms they are down there somewhere more than likely drifting in a powerless state, with little food/water and very low temps and now 24hrs of oxygen left, it's looking bleak.
If you're aware the black box system in all commercial/military aircraft utilises a ultrasonic sonar ping which can last for up to 30days allowing emergency services to locate the device in depths as deep as the titanic. Why the actual fck did they not even have a simple device on board? Again the fact this Sub avoided any certification or safety assessments is beyond me.
Poor souls, however it should NEVER have been permitted, its clear now this Sub was never approved or passed rigorous structural and standards permitting it to operate at these depths. The costs and man hours already spent searching for this sub must be huge.
The last ping was approaching the wreck. I still think they suffered a power failure of sorts as the sonar comms stopped, indicating some sort of failure either the power or other issue, had they been tangled in some sort of wreck, i would say comms would still be possible.
Limited knowledge of their setup indicates there may not be much in the way of contingency backup in the event of power failure, unlike aviation and military architecture where multiple levels of redundancy are a must for all components it seems the failure system that would trigger a resurface was also affected here, either by sharing the same power source which failed and or signalling to invoke resurface was unable to activate again due to the lack of redundancy in the design.
This is my theory as the USCG(Coast guard) tweeted they were receiving banging noises over sonar monitors which confirms they are down there somewhere more than likely drifting in a powerless state, with little food/water and very low temps and now 24hrs of oxygen left, it's looking bleak.
If you're aware the black box system in all commercial/military aircraft utilises a ultrasonic sonar ping which can last for up to 30days allowing emergency services to locate the device in depths as deep as the titanic. Why the actual fck did they not even have a simple device on board? Again the fact this Sub avoided any certification or safety assessments is beyond me.
Poor souls, however it should NEVER have been permitted, its clear now this Sub was never approved or passed rigorous structural and standards permitting it to operate at these depths. The costs and man hours already spent searching for this sub must be huge.
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Heard someone say that the viewing port on that submersible was certified to depths up to 1300 metres, the Titanic is 4000 metres?, so they might be dead already.
great post -more informative than Ive seen by the MSM.
"Poor souls, however it should NEVER have been permitted, its clear now this Sub was never approved or passed rigorous structural and standards permitting it to operate at these depths. The costs and man hours already spent searching for this sub must be huge."
yup totally agree
and where was the contingency planning for these trips?
There are more and more articles coming out about the sub itself and the company. Distinct lack of proper testing, constructed using questionable methods and materials, lack of recovery strategy should something like this happen. As one expert interviewee put it, yes it's good that humankind wants to push boundaries, however you surely want to do it using equipment that's been tested to rigorous levels and then some, especially if doing something under water.
Rapid decompression?
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Maybe, however the first issue that occurred was a halt of 2-way comms. You would think the first course of action would be to send out a distress signal, unless the hull breach very quickly compromised the onboard power supplies. However the apparent sonar pickups of them banging on the hull means whatever it was hadn't killed the crew, a structual failure at those depths would pancake them in an instant.
However if water was leaking in just looking at the screens and keyboards sitting on the floor and literally an Xbox style controller to control the sub, doesn't look like much concern for IP rated devices was going on there.
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