<font color='black' size='3' face='Arial, Helvetica, sans-serif'><font size="3">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.</font>
<div><font size="3">Vance<br>
</font><br>
<br>
<div style="font-size: 10pt; font-family: helvetica, arial; color: black;">-----Original Message-----<br>
From: Sean T. Stevenson via Personal_Submersibles <personal_submersibles@psubs.org><br>
To: Personal Submersibles General Discussion <personal_submersibles@psubs.org><br>
Sent: Sun, Nov 8, 2015 7:04 pm<br>
Subject: Re: [PSUBS-MAILIST] Fwd: hemi heads<br>
<br>
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<div dir="ltr">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. </div>
<div dir="ltr">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.</div>
<div dir="ltr">Sean<br>
</div>
<br>
<br>
<div class="gmail_quote">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:<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<pre class="k9mail">Hank, Please check out those external gauges.<br>
<br>
Pete<br>
<hr><br>
On Sun, 11/8/15, Keith Gordon via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br>
<br>
Subject: [PSUBS-MAILIST] Fwd: hemi heads<br>
To: "Personal Submersibles General Discussion" <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>
Date: Sunday, November 8, 2015, 5:25 PM<br>
<br>
As discussed<br>
Hank have removed one image to reduce to 418 KB - will see<br>
how this goesKeith <br>
Begin forwarded message:<br>
From:<br>
Keith<br>
Gordon <<a href="mailto:searov@xtra.co.nz">searov@xtra.co.nz</a>><br>
Subject:<br>
Re:<br>
[PSUBS-MAILIST] hemi heads<br>
Date:<br>
9 November<br>
2015 9:34:32 AM NZDT<br>
To:<br>
Personal<br>
Submersibles General Discussion <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>
<br>
Hi Hank<br>
Maybe of interest - I have attached some pix of<br>
Pisces 8 without her clothes on - <br>
Cheers Keith Gordon<br>
On 9/11/2015,<br>
at
5:17 AM, hank pronk via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>
wrote:<br>
<br>
Sean,By<br>
all means, anyone is welcome to any drawings I obtain or map<br>
from the Pisces. I actually already<br>
have material price to machine the hatch from a solid disk<br>
of 516-70N this way it is one piece with no welds.<br>
I just need the drawing first to order the<br>
disk.Hank<br>
<br>
<br>
<br>
On Sunday, November<br>
8, 2015 8:52 AM, Sean T. Stevenson via Personal_Submersibles<br>
<<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>
wrote:<br>
<br>
<br>
I'd be<br>
interested in having a look at those drawings. The<br>
idea with a<br>
conical bearing face on a hatch,<br>
if you are not trying to establish a<br>
metal-to-metal seal, is to provide a load path<br>
through the hatch itself<br>
to carry the shell<br>
stress that would otherwise require heavy<br>
reinforcement around the hole. Thus,
the<br>
"ideal" hatch would be the<br>
same<br>
thickness and curvature as the shell it is replacing,<br>
aligned to it<br>
so the load transfers straight<br>
through, with a flange on both the hatch<br>
and<br>
shell parts to create a substantial bearing face. The<br>
conical angle<br>
in that case would be set by<br>
the hatch diameter, as the ideal interface<br>
angle would be perpendicular to the shell at<br>
every point. I suspect<br>
that in<br>
practice, the cone is exaggerated beyond that, because<br>
we're<br>
talking about very small angles on<br>
larger spheres - on a PSub, perhaps<br>
it is<br>
more important. The other advantage is of course the<br>
self-centering.<br>
<br>
Sean<br>
<br>
<br>
On 2015-11-07<br>
16:26, hank pronk via Personal_Submersibles wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"> Dr Nuytten thinks he has
detail drawings<br>
</blockquote> that he is willing to share<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"> with me, if<br>
</blockquote> he can not find them, he has given me permission to<br>
measure<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"> one of his Pisces in the bone<br>
</blockquote> yard. I may have a look for myself even<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"> with drawings, just because I am a visual<br>
</blockquote> guy- if I see it I can make<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"> it. <br>
</blockquote> Besides, how fun is a day at the Nuytco bone yard :-)<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex;
border-left: 1px solid #729fcf; padding-left: 1ex;"> Hank <br>
</blockquote> <br>
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