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For those who are unaware: A couple billionaires, a pilot, and one of the billionaires' son are currently stuck inside an extremely tiny sub a couple thousand meters under the sea (inside of the sub with the guys above).
They were supposed to dive down to the titanic, but lost connection about halfway down. They've been missing for the past 48 hours, and have 2 days until the oxygen in the sub runs out. Do you think they'll make it?
A couple things are potentially different from how op laid them out. (From my understanding)
The vessel was designed to automatically begin resurfacing after a set period of time underwater, even without pilot input, so it might not be very deep at all. The problem is it doesn't sit very high in the water and is very hard to see.
They don't necessarily have 2 days of oxygen left, those were calculated values, and there may be other gaseous build ups that impair the totally oxygen supplies.
I hope it was over quickly for them, I don't know how you could resurface that type of vessel without breaking it. I hope we will find evidence and be able to piece together what happened, but I suspect it'll just be lost at sea. I don't think there's any conspiracy up keep evidence away from the public, I think most people underestimate how difficult it is to find 4 cubic meters inside a 10 cubic kilometer area, hell that would be hard without that area being covered in water.
Isn't there an automatic beacon that transmits when on the surface?
And why isnt it tethered?
If you can drop an emergency beacon they may as well drop emergency weights and surface. Even if we knew exactly where they were a recovery at 4km deep is not guaranteed. Better to be on the surface.
Tethers don't work at that depth for a variety of reasons. One being that the surface boat drifts around on the surface and it would pull the sub all over the place. The sub goes under and the boat 'stays in the area' not right on top of them.