<font color='black' size='3' face='Arial, Helvetica, sans-serif'><font size="3"><font face="Arial, Helvetica, sans-serif">Unknown. Interesting though. Hmm.</font></font>
<div style="color: black; font-family: Arial, Helvetica, sans-serif;"><font size="3">Vance<br>
</font><br>
<br>
<div style="font-size: 10pt; font-family: helvetica, arial; color: black;">-----Original Message-----<br>
From: Pete Niedermayr via Personal_Submersibles <personal_submersibles@psubs.org><br>
To: Personal Submersibles General Discussion <personal_submersibles@psubs.org><br>
Sent: Mon, Nov 9, 2015 12:21 am<br>
Subject: Re: [PSUBS-MAILIST] Fwd: hemi heads<br>
<br>
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<pre style="font-size: 9pt;"><tt>What are the other gauge shaped things
?
Pete
--------------------------------------------
On Sun, 11/8/15, via
Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:
Subject: Re:
[PSUBS-MAILIST] Fwd: hemi heads
To: <a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>
Date:
Sunday, November 8, 2015, 8:07 PM
i assume you mean the gauge shape on the
outboard
edge of the pilot's viewport (port side). That isn't
a gauge. It is
a mechanical (push pull cables) thruster
angle indicator.
Vance
-----Original Message-----
From: Sean T. Stevenson via
Personal_Submersibles
<<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>
To: Personal
Submersibles General Discussion
<<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>
Sent:
Sun, Nov 8, 2015 7:04 pm
Subject: Re: [PSUBS-MAILIST] Fwd: hemi heads
The external gauges are likely for the
hydraulic system
(pump, manipulators, etc.) pressures, as
these would have no reason to be
plumbed into the personnel
sphere, and would represent a risk of contaminating
the
atmosphere in the event of a leak / spill.
I did a lot of ROV
projects in which
mechanical gauges were similarly placed within a camera
field of view. Much simpler and cheaper to piggyback on the
video versus
signal conditioning a transducer and sending
that measurement separately up an
umbilical.
Sean
On November 8, 2015
4:51:14 PM MST, Pete Niedermayr via Personal_Submersibles
<<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>
wrote:
Hank, Please check out
those
external gauges.
Pete
On Sun, 11/8/15, Keith Gordon via
Personal_Submersibles
<<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>
wrote:
Subject: [PSUBS-MAILIST] Fwd: hemi heads
To: "Personal Submersibles
General Discussion"
<<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>
Date: Sunday,
November 8, 2015, 5:25 PM
As discussed
Hank have removed one
image to reduce to 418 KB - will
see
how this goesKeith
Begin
forwarded message:
From:
Keith
Gordon <<a href="mailto:searov@xtra.co.nz">searov@xtra.co.nz</a>>
Subject:
Re:
[PSUBS-MAILIST] hemi heads
Date:
9
November
2015 9:34:32 AM NZDT
To:
Personal
Submersibles
General Discussion <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>
Hi Hank
Maybe of interest - I have attached some pix of
Pisces 8 without her
clothes on -
Cheers Keith Gordon
On 9/11/2015,
at
5:17 AM,
hank pronk via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>
wrote:
Sean,By
all means, anyone is welcome to any drawings I
obtain or
map
from the Pisces. I actually already
have material
price to machine the hatch from a solid
disk
of 516-70N this way it is
one piece with no welds.
I just need the drawing first to order the
disk.Hank
On Sunday, November
8, 2015
8:52 AM, Sean T. Stevenson via
Personal_Submersibles
<<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>
wrote:
I'd be
interested in having a look at those drawings. The
idea with a
conical bearing face on a hatch,
if you are not trying to establish a
metal-to-metal seal, is to provide a load path
through the hatch itself
to carry the shell
stress that would otherwise require heavy
reinforcement around the hole. Thus,
the
"ideal" hatch would be the
same
thickness and curvature as the shell it is replacing,
aligned to it
so the load transfers straight
through, with a flange
on both the hatch
and
shell parts to create a substantial bearing
face. The
conical angle
in that case would be set by
the
hatch diameter, as the ideal interface
angle would be perpendicular to the
shell at
every point. I suspect
that in
practice, the cone is
exaggerated beyond that, because
we're
talking about very small
angles on
larger spheres - on a PSub, perhaps
it is
more
important. The other advantage is of course the
self-centering.
Sean
On 2015-11-07
16:26, hank pronk via
Personal_Submersibles wrote:
Dr Nuytten thinks he has
detail drawings
that he is willing to share
with me, if
he can not find them, he
has given me
permission to
measure
one of his Pisces in the bone
yard. I may have a look for myself even
with drawings, just because
I am
a visual
guy- if I see it I can make
it.
Besides, how
fun is a day at the Nuytco bone
yard :-)
Hank
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