They may have a little more time. News reports said they only had 4
people and one pilot. No word on the difference between a pilot and a
person.
bp
<part15sbs{at}gmail{dot}com>
On 6/22/2023 9:06 AM, Steve Jones wrote:
96 hours O2 for 5 people
480 man hours O2
120 hours - 4 people
160 hours - 3 people
240 hours - 2 people
480 hours - me
just saying
On Thu, Jun 22, 2023 at 10:59 AM Chuck McCown via AF <af@af.afmug.com>
wrote:
Water pressure at 12,500' is something like 5400 psi. There is a
lot of
area on that tube. Who trusts essentially fiberglass to withstand
5400 psi?
If it was a pressure vessel it is one thing, but this is
essentially a
vacuum inside the tube, the forces pushing on it are not pulling
on those
fibers. The tiniest non symmetry in shape would be no bueno.
-----Original Message-----
From: dmmoff...@gmail.com
Sent: Thursday, June 22, 2023 7:02 AM
To: 'AnimalFarm Microwave Users Group'
Cc: ch...@go-mtc.com
Subject: RE: [AFMUG] This thing on?
I read a commentary today saying the hull was made of titanium and
carbon
fiber.
An Operations Director for the manufacturer delivered a quality
control
report saying that the carbon fiber hull carried a risk of small
defects
expanding into major failures under pressure. They were relying on an
acoustic fault detection system that was supposed to alert the
pilot if
there were sounds indicating stress in the hull. That Operations
Director
said you'd have a matter of milliseconds between that alert system
going off
and a catastrophic failure. He'd expressed those concerns
verbally and was
ignored, so he delivered that report to senior management in 2018
to create
a written record of his concerns, and was immediately fired. Then
he took
his report to OSHA, there was a lawsuit about divulging company
information
or some such. Lawsuit settled later that year, OSHA didn't take
any action
against the manufacturer. I'd bet a nickel that OSHA doesn't have
specific
rules for submarines, and without any rules to follow they don't
have enough
knowledge to assess whether one is actually safe.
-----Original Message-----
From: AF <af-boun...@af.afmug.com> On Behalf Of Chuck McCown via AF
Sent: Wednesday, June 21, 2023 7:32 PM
To: AnimalFarm Microwave Users Group <af@af.afmug.com>
Cc: ch...@go-mtc.com
Subject: Re: [AFMUG] This thing on?
What a horror show. There were so many ways they could have
improved their
chances at survival. Supposedly dissolvable straps should have
dropped sand
ballast by now. They had a way to mechanically drop steel
ballast. And a
inflatable bladder.
Why not a power and comm tether to the mother ship? I realize it
is 12,500'
of cable but fiber optics are pretty much neutrally buoyant.
But no underwater pinger. No ELT. How about a sat tel or VHF
radio. Some
kind of way to talk to the world. No high pressure air to blow
tanks. I
would have wanted explosive bolts on the hatch if there was no
other way to
get out. But why not some kind of fresh air intake assuming you could
surface. This haunts my sleep.
-----Original Message-----
From: Bill Prince
Tryin' to get my ass outa this cramped submarine.
bp
<part15sbs{at}gmail{dot}com>
On 6/21/2023 3:10 PM, Steve Jones wrote:
> Errbody dead?
>
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