Vessel Divers Searching Sunk Superyacht- Sicily

[LFMarm]

Here is the only article I found that is focused on the divers. Per i sommozzatori dei vigili del fuoco in 5 giorni 123 immersioni e 4.370 minuti sott'acqua - VIDEO - Giornale di Sicilia

 

[Ez E]

Green valves and green regs on the tanks standing underneath suggest oxygen.

Isnt green for O2 only used in the US? I thought I read the rest of the world uses “white” to designate oxygen.

 

[Wibble]

Isnt green for O2 only used in the US? I thought I read the rest of the world uses “white” to designate oxygen.

No.

Green is the colour for rich oxygen mixes. There's even green "O2" regulators

 

[Ez E]

No.

Green is the colour for rich oxygen mixes. There's even green "O2" regulators

Oh oxygen rich gasses. That makes sense. I found the chart and the post I was remembering and it was for “medical O2”. Those tanks are green in the US and white it appears in the rest of the world. ISO standards vs US standards.

 

[Wibble]

Oh oxygen rich gasses. That makes sense. I found the chart and the post I was remembering and it was for “medical O2”. Those tanks are green in the US and white it appears in the rest of the world. ISO standards vs US standards.

We don’t paint our oxygen tanks green. Any colour will do!

On a rebreather it is a de-facto standard to have green knobs on oxygen tanks. Still means you read the analysis label and do ox-tox drills when switching gases underwater.

 

[Ez E]

We don’t paint our oxygen tanks green. Any colour will do!

On a rebreather it is a de-facto standard to have green knobs on oxygen tanks. Still means you read the analysis label and do ox-tox drills when switching gases underwater.

Post #2 was what I was referencing. But it appears to be for medical O2. Im not familiar with O2 on a rebreather.

Green Top vs White Top DAN Oxygen Cylinders

Not wishing to start an information storm....but the DAN Store says that the white topped oxygen bottles they sell are not for use in USA: "White cylinders not for use in United States of America". Currently they are out of stock of the green top Jumbo-Ds. From what I can research, there are...

scubaboard.com

 

[justinthedeeps]

I thought Europeans prided themselves on being multi-lingual

View attachment 857189

Not sure what your L/min is on this, but I've done that as a single Al80 of air bouce dive down to 60 metres, including a ~200+m transit to get there at ~15 metres (and back), and was easily able to rejoin my 'team' to wrap up a near 60-minute normal dive without running out of gas.

But I won't be making a habit of that (the narcosis is gross), and certainly wouldn't be trying to recover people from a wreck in cold/murky harbor that way!

 

[KevinNM]

Here in West Texas, we have whirlwinds, we have tornadoes, and they share some similarities, but they're quite different in their power. No whirlwind could have sunk that yacht; it has to have been a much stronger wind out of a strong cell. Whether or not a firewatch crewmember could have recognized the threat and sounded an alarm is questionable.

I’ve seen a video of a water spout in Sidney harbor. It throws a 50 foot boat into the air, landing inverted, then it strikes a large sailing vessel and almost, but not quite, capsizes it. Mast was at least 80 degrees from vertical.

 

[DandyDon]

Whirlwinds, water spouts, and tornadoes are all similar phenomena with varying strengths from - to 5 I think.

 

[Angelo Farina]

@JohnN
These are divers from an Italian Fire Brigade, not the occasional rcreation diver. You can be sure, that they knew what they were doing. As said before: deco stops would not have been a problem as support crew would have provided full tanks while divers in water to stay at 5 m.

They did not expect that...

I served as a firefighter instead of my military service, in 1984, and being already a 3 stars CMAS instructor, at the time, I was in charge of training these fire brigade divers at the Capannelle training center, in Rome. They are the best of the best, far superior to Italian COMSUBIN (our Navy Seals) for deep dives in air - COMSUBIN instead are very good in shallow water using pure-oxygen CC rebreathers, but are not as good in recovery operations at depth.
However, for activities inside wrecks, specialised divers from "civil protection" (a voluntary corp, similar to Red Cross, but funded by the State) are often used, for example for speleological activities.
I was also a volunteer in the "civil protection" as specialised diver for muddy rivers, doing mostly recovery of dead bodies in the Po river and its affluents. Not a nice activity (zero visibility, strong currents, a lot of debris), but someone has do it...