<font color='black' size='3' face='Arial, Helvetica, sans-serif'><font class="Apple-style-span" size="3">Agreed. The best I've seen for this kind of thing is Spectra 12 from Novabraid--a hollow braided 12 strand rope with breaking strengths comparable to wire rope. The 1/8" diameter rope, for instance, has a breaking strength of 1800 pounds. Anyone who checked the JSL emergency buoy reel will have seen about a half mile of that stuff on a spool between the pilot's sphere and the diving compartment. It is seriously strong, easy to handle, and resistant to virtually everything, apparently (sun, salt water, heat, and so on). Great stuff.</font>
<div><font class="Apple-style-span" size="3">Vance<br>
</font><br>
<br>
<div style="font-family: helvetica, arial; font-size: 10pt; 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: Fri, Sep 12, 2014 8:10 pm<br>
Subject: Re: [PSUBS-MAILIST] gamma upgrades<br>
<br>
<div id="AOLMsgPart_2_ed3ad515-7821-468f-87ca-9ddf3ede24bb">
<div class="aolReplacedBody">
<div dir="ltr">Be aware that when you start doing deeper dives, a significant portion of your power will be used just to drag that line through the water - particularly if holding position against a current. Don't go larger than necessary. You might want to consider a topsite float and constant tension on the line.</div>
<div dir="ltr">Sean<br>
</div>
<br>
<br>
<div class="gmail_quote">On September 12, 2014 4:49:39 PM MDT, hank pronk 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"><br>
Vance,<br>
I like this rope because it is buoyant so it is always going straight up, also it never sinks into the prop on the surface. It is not a tether really, it is a tow line for the flag since I don't have a surface boat.<br>
Hank<hr><br>
On Fri, 9/12/14, Vance Bradley via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br>
<br>
Subject: Re: [PSUBS-MAILIST] gamma upgrades<br>
To: "Personal Submersibles General Discussion" <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>
Received: Friday, September 12, 2014, 6:40 PM<br>
<br>
I don't like nylon<br>
for a surface tether because it soaks water over time and<br>
gets negative and heavy. Quarter inch polypropylene is<br>
neutral and has a 1400# breaking strength. We always used it<br>
unless there was a lift to do ( like long base acoustic<br>
transponders with a 300# bottom weight, for instance).<br>
Vance <br>
<br>
Sent<br>
from my iPhone<br>
<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"> On Sep<br>
</blockquote> 12, 2014, at 6:28 PM, hank pronk via Personal_Submersibles<br>
<<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>
wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"> <br>
<br>
Vance, <br>
Great idea, I<br>
</blockquote> am using 1/2 in yellow nylon rope that is buoyant and so far<br>
it is good but,,, the other day I hit a tree and dragged<br>
it. When I was surfacing I noticed the buoy line was going<br>
down while I was going up. That is why I attached it to<br>
the sample bag winch. Clever yes? lol.<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"> Hank<br>
</blockquote><hr><br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"> On Fri, 9/12/14, Vance Bradley via<br>
</blockquote> Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>
wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"> <br>
Subject:<br>
</blockquote> Re: [PSUBS-MAILIST] gamma upgrades<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"> To:<br>
</blockquote> "Personal Submersibles General Discussion" <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"> Received: Friday, September 12, 2014, 6:23<br>
</blockquote> PM<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"> <br>
You can attach<br>
</blockquote> a trawl<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"> buoy to your surface line 6-10<br>
</blockquote> feet above the sub to help<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"> keep the<br>
</blockquote> line away from your prop.<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"> Vance<br>
Sent from my iPhone</blockquote><br>
<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"> On Sep 12, 2014, at 6:13 PM, hank<br>
</blockquote> pronk via<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"> Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>
wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #ad7fa8; padding-left: 1ex;"> <br>
Gamma has<br>
</blockquote> a<br>
</blockquote> modified scrubber that takes cartridges, I moved the fan<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"> inside the scrubber housing. I mounted<br>
</blockquote> removable airtight<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"> caps on the intake<br>
</blockquote> and exhaust ports, now I can leave the<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"><br>
</blockquote> cartridge inside the scrubber all the time. I just<br>
remove<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"> the caps and turn on the<br>
</blockquote> scrubber. I also added to my<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"> safety<br>
</blockquote> gear, I have a immersion suit in case I have to bail<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"> out in freezing water. My diver below<br>
</blockquote> buoy and flag that I<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"> tow behind Gamma<br>
</blockquote> all the time is now detachable from<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"><br>
</blockquote> inside.<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"><blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #ad7fa8; padding-left: 1ex;"> Hank<br>
</blockquote><br>
</blockquote><hr><br>
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