Submarine disappeared...
Discussion
Ayahuasca said:
Free dive ascent from 80 metres down? Not a chance.
Eminently possible. A friend of mine's a freediver - she reached 100m in a competition this year. Both ways, on a single breath...https://www.deeperblue.com/alenka-artnik-4th-perso...
BBC reporting that an underground explosion has been heard near where they think the submarine is.
http://www.bbc.co.uk/news/world-latin-america-4210...
http://www.bbc.co.uk/news/world-latin-america-4210...
TooMany2cvs said:
Ayahuasca said:
Free dive ascent from 80 metres down? Not a chance.
Eminently possible. A friend of mine's a freediver - she reached 100m in a competition this year. Both ways, on a single breath...https://www.deeperblue.com/alenka-artnik-4th-perso...
Did your friend dive 80m on her first go?
Ayahuasca said:
TooMany2cvs said:
Ayahuasca said:
Free dive ascent from 80 metres down? Not a chance.
Eminently possible. A friend of mine's a freediver - she reached 100m in a competition this year. Both ways, on a single breath...https://www.deeperblue.com/alenka-artnik-4th-perso...
Did your friend dive 80m on her first go?
TooMany2cvs said:
Ayahuasca said:
TooMany2cvs said:
Ayahuasca said:
Free dive ascent from 80 metres down? Not a chance.
Eminently possible. A friend of mine's a freediver - she reached 100m in a competition this year. Both ways, on a single breath...https://www.deeperblue.com/alenka-artnik-4th-perso...
Did your friend dive 80m on her first go?
Leaving aside that they have been in a submarine with little air for the past week, and that your friend probably wore a wetsuit, and was very experienced, the fact is that below 10 or 15m a human being is negatively buoyant, so going down is not the hard half.
Ayahuasca said:
Daft comment.
Leaving aside that they have been in a submarine with little air for the past week, and that your friend probably wore a wetsuit, and was very experienced, the fact is that below 10 or 15m a human being is negatively buoyant, so going down is not the hard half.
Wouldnt they have inflatable life jackets? Or even buoyant non-inflatable life jackets? Or perhaps https://en.wikipedia.org/wiki/Submarine_Escape_Imm...Leaving aside that they have been in a submarine with little air for the past week, and that your friend probably wore a wetsuit, and was very experienced, the fact is that below 10 or 15m a human being is negatively buoyant, so going down is not the hard half.
Eric Mc said:
Sounds like it sank below its crush depth and imploded.
That is what happens in many cases.
Surprised it wouldn't have something like an EPIRB that would send out a signal if it was submerged. It's not as if there's much point being all secret about the location of the sub if it's imploded. That is what happens in many cases.
Just reading up on the Argentine subs vs RN kerfuffle in '82. Seems the RN was no good at detecting them (it) although it fired around 50 torpedos at suspected targets (some whales may have copped it). On the other side, the Argentines had wired up their torpedos incorrectly so when they fired they didn't function as designed.
TooMany2cvs said:
Eminently possible. A friend of mine's a freediver - she reached 100m in a competition this year. Both ways, on a single breath...
https://www.deeperblue.com/alenka-artnik-4th-perso...
How do they get the breath when they are at the bottom of the 100m to come back up? https://www.deeperblue.com/alenka-artnik-4th-perso...
poo at Paul's said:
TooMany2cvs said:
Eminently possible. A friend of mine's a freediver - she reached 100m in a competition this year. Both ways, on a single breath...
https://www.deeperblue.com/alenka-artnik-4th-perso...
How do they get the breath when they are at the bottom of the 100m to come back up? https://www.deeperblue.com/alenka-artnik-4th-perso...
It's a very bad situation.
I used to work in a civilian engineering job for the navy.
The sea absorbs EPIRB frequency radio waves. EPIRB won't work. I believe long wave radio can penetrate the sea, but if something catastrophic had happened, they may have no communication. IMHO things would have had to go wrong quite quickly for them not to transmit a message while they could.
Submarines are hard to find by design. That is why navies operate submarines.
The maximum diving depth of a conventional (non-nuclear) sub is a few hundred meters. At some point beyond that, the pressure hull will implode. If that happened, it would happen in a fraction of a second and everyone would be dead before they knew it. Though the submariners may have known things were going badly wrong in the minutes beforehand.
I used to work in a civilian engineering job for the navy.
The sea absorbs EPIRB frequency radio waves. EPIRB won't work. I believe long wave radio can penetrate the sea, but if something catastrophic had happened, they may have no communication. IMHO things would have had to go wrong quite quickly for them not to transmit a message while they could.
Submarines are hard to find by design. That is why navies operate submarines.
The maximum diving depth of a conventional (non-nuclear) sub is a few hundred meters. At some point beyond that, the pressure hull will implode. If that happened, it would happen in a fraction of a second and everyone would be dead before they knew it. Though the submariners may have known things were going badly wrong in the minutes beforehand.
DurianIceCream said:
The sea absorbs EPIRB frequency radio waves. EPIRB won't work. I believe long wave radio can penetrate the sea, but if something catastrophic had happened, they may have no communication. IMHO things would have had to go wrong quite quickly for them not to transmit a message while they could.
I think the thinking was that one could be be jettisoned that could reach the surface...Would have helped to locate the missing B777 too.
Almighty Father, strong to save,
Whose arm hath bound the restless wave,
Who bidd'st the mighty ocean deep
Its own appointed limits keep:
O hear us when we cry to thee
For those in peril on the sea.
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