In todays news...

[demographic]

So it seems that last night there was a bit of a vote about something or other.
The bloke that the press would have it has huge support turns out to have virtually fuckall support.

So I'm guessing that much of the press was full of shite and the pollsters were right after all.
Kind of interesting and might even have a few parallels.

[Mr. Dazzle]

This sub which lost all comminication. Is it not conceivable that they brought it back to the surface and are bobbing around somewhere, or does it have a surface beacon thingy?

According to the Beeb yeah it does, and the system to drop ballast and initiate bobbing is fully manual.

But also according to the Beeb its just as likely they sprung a leak.

[Le_Fromage_Grande]

This sub which lost all comminication. Is it not conceivable that they brought it back to the surface and are bobbing around somewhere, or does it have a surface beacon thingy?

They're dead, and I hope no one risks their lives retrieving their bodies.
I have no idea why anyone would pay to go in a submarine, never mind a tiny submersible, fucking awful things, they're horrible surfaced, you'd have to pay me a lot of money to go in one again.

[Mr. Dazzle]

It gets better, this one is home made!

[Yorick]

This sub which lost all comminication. Is it not conceivable that they brought it back to the surface and are bobbing around somewhere, or does it have a surface beacon thingy?

I read somewhere that it has 5 ways to go upwards.

[Taipan]

This sub which lost all comminication. Is it not conceivable that they brought it back to the surface and are bobbing around somewhere, or does it have a surface beacon thingy?

They're dead, and I hope no one risks their lives retrieving their bodies.
I have no idea why anyone would pay to go in a submarine, never mind a tiny submersible, fucking awful things, they're horrible surfaced, you'd have to pay me a lot of money to go in one again.

A guy on tv said pretty much the same thing today. He said if even they find it, its still unlikely they'd be able to resurface it in time.

[Yorick]

I'm surprised that when folk are paying 250k for the experience, there's not a fixed line to a ship on the surface.

Would be expensive, but only the cost of one passenger maybe?

[KungFooBob]

4km of air hose/fibre...

I guess an air hose has to be pretty strong to not squish under the pressure, so would be quite chunky.

It would need one hell of a reel on the mothership to store it.

[Le_Fromage_Grande]

How would you make and transport a 4km cable capable of pulling a submersible from the bottom of the sea, it'd have to be one hell of a winch.

[Yorick]

How would you make and transport a 4km cable capable of pulling a submersible from the bottom of the sea, it'd have to be one hell of a winch.

I'm sure they could do something for £1m?
Cost of one trip?

And there's no real weight involved.

[Yorick]

4km of air hose/fibre...

I guess an air hose has to be pretty strong to not squish under the pressure, so would be quite chunky.

It would need one hell of a reel on the mothership to store it.

No need for air hose

[KungFooBob]

Well it's got to be a pretty tough fibre cable if it needs any bandwidth, even a copper cable for basic voice comms is going to be pulled pretty hard at those distances.

[Yorick]

Well it's got to be a pretty tough fibre cable if it needs any bandwidth, even a copper cable for basic voice comms is going to be pulled pretty hard at those distances.

Aha. Adding in comms would be a good idea.

[demographic]

Dont bathescapes have a cable? The Triest went ro the Challenger deep at the bottom of the Marianas trench in about 1960 so its possible
Not so sure about the airpipe though, its a shitload of pressure..

[Le_Fromage_Grande]

How would you make and transport a 4km cable capable of pulling a submersible from the bottom of the sea, it'd have to be one hell of a winch.

I'm sure they could do something for £1m?
Cost of one trip?

And there's no real weight involved.

Lol, no real weight, have you ever tried moving long lengths of cable?

[Ant]

Yeah, there's no real weight to a couple of tons of cable.....

[Yorick]

How would you make and transport a 4km cable capable of pulling a submersible from the bottom of the sea, it'd have to be one hell of a winch.

I'm sure they could do something for £1m?
Cost of one trip?

And there's no real weight involved.

Lol, no real weight, have you ever tried moving long lengths of cable?

A million pound ship could do it

[cheb]

Bathyspheres have a cable. Read up on Beebe and Barton. There's a bit in one of their books about depth sounding using cables. The lengths and weights needed got ridiculous quite quickly, the wire doesn't hang straight down because of differing currents at different depths.

Bathyscaphes have freedom of movement. The one that went to the bottom of the Marianas trench used steel shot held in with electromagnets. It could be released in small amounts to adjust bouyancy and the entire container could be jettisoned in an emergency. The float contained an eye watering amount of petrol, lighter than water and incompressible so the bouyancy didn't change with depth.

I'll try to find references and a bit more detail tomorrow.

A million pounds doesn't buy you much of ship these days, the ferries for out here are over £50M each, and that's before the inevitable overspend.

[ZRX61]

4500psi at that depth. They're fucked. Even if it surfaced, they have no way to get out of it.. altho they probably don't look much like people at this point.

[David]

There has been a rythmic knocking heard at 30 minute intervals.....still no precise location, even if they can pin down the location, they have to get ROV's on site and down, then release the submersible if it's trapped, and then get it up and a). find it b) get the lid off.
Less than 24 hours of air left.

Not looking good.