<font color='black' size='3' face='Arial, Helvetica, sans-serif'><font class="Apple-style-span" size="3">And what is the cost?</font>
<div><font class="Apple-style-span" size="3">Vance<br>
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<div style="font-family: helvetica, arial; font-size: 10pt; color: black; ">-----Original Message-----<br>
From: Hugh Fulton via Personal_Submersibles <personal_submersibles@psubs.org><br>
To: 'Personal Submersibles General Discussion' <personal_submersibles@psubs.org><br>
Sent: Sun, Jul 27, 2014 7:22 pm<br>
Subject: Re: [PSUBS-MAILIST] MK-101 Connectors<br>
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<div class="MsoNormal"><span style="font-size:11.0pt;font-family:">Those Rotorque units look great and seem like the answer to my prayers but the power for 40 kg thrust appears a little high. However, Emile says that they outperform the previous thrusters so are they being over conservative??</span></div>
<div class="MsoNormal"><span style="font-size:11.0pt;font-family:">What are the MK-101’s figures like compared with Emile’s thrusters. What do each actually draw current wise at full chat? </span></div>
<div class="MsoNormal"><span style="font-size:11.0pt;font-family:">Hugh</span></div>
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<div class="MsoNormal"><b><span style="font-size:10.0pt;font-family:">From:</span></b><span style="font-size:10.0pt;font-family:"> Personal_Submersibles [<a href="mailto:personal_submersibles-bounces@psubs.org?">mailto:personal_submersibles-bounces@psubs.org</a>] <b>On Behalf Of </b>Clifford Redus via Personal_Submersibles<br>
<b>Sent:</b> Monday, 28 July 2014 10:01 a.m.<br>
<b>To:</b> Personal Submersibles General Discussion<br>
<b>Subject:</b> Re: [PSUBS-MAILIST] MK-101 Connectors</span></div>
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<div class="MsoNormal">Since so many of us are using or planning on using MK-101s either air or oil compensated, it would be nice if we could move towards a standard connector. These thrusters are 36v with max current of 46 amps. The lower unit comes with two 10 AWG wires.</div>
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<div class="MsoNormal">It would be nice if the connector was a male bulk head connector with two power pins and one alignment pin. </div>
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<div class="MsoNormal">Could go with an off the shelf connector like an impulse HDBH-2-MP but these are expensive as rated for depth. In our case since we are pressure compensating this is overkill. </div>
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<div class="MsoNormal">For those of you that have MK-101 or MK-80 thrusters, what type of connectors are you using?</div>
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<div class="MsoNormal">Like Vance, I am planning to have a spare that could be swapped out in the field.</div>
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<div class="MsoNormal">Cliff</div>
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On Jul 28, 2014, at 5:30 AM, Emile van Essen via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:</div>
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<div class="MsoNormal"><span style="font-size:10.0pt;font-family:">Cliff, </span></div>
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<div class="MsoNormal"><span style="font-size:10.0pt;font-family:"><a target="_blank" href="http://www.rotorque-jet.de/">http://www.rotorque-jet.de/</a></span></div>
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<div class="MsoNormal"><span style="font-size:10.0pt;font-family:">best regards, Emile</span></div>
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<div class="MsoNormal"><b><span style="font-size:10.0pt;font-family:">Van:</span></b><span style="font-size:10.0pt;font-family:"> Personal_Submersibles [<a href="mailto:personal_submersibles-bounces@psubs.org">mailto:personal_submersibles-bounces@psubs.org</a>] <b>Namens </b>Clifford Redus via Personal_Submersibles<br>
<b>Verzonden:</b> zondag 27 juli 2014 23:21<br>
<b>Aan:</b> Personal Submersibles General Discussion<br>
<b>Onderwerp:</b> Re: [PSUBS-MAILIST] Air compensating thrusters</span></div>
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Emile. Can you send link on Rotoque hubless thrusters ? </div>
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<div class="MsoNormal">Cliff</div>
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On Jul 28, 2014, at 5:08 AM, Emile van Essen via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:</div>
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<div class="MsoNormal"><span style="font-size:10.0pt;font-family:">All,</span></div>
<div class="MsoNormal"><span style="font-size:10.0pt;font-family:"> </span></div>
<div class="MsoNormal"><span lang="EN-GB" style="font-size:10.0pt;font-family:">I was using 3 CSt. Viscisity silicone oil. Works but dissolves only silicone parts. The stern thruster , which is used for surface cruising, is air compensated. Works now fine . The plumping is done in a way that eventual water in the thruster is expelled trough the 2<sup>nd</sup> stage while ascending.</span></div>
<div class="MsoNormal"><span lang="EN-GB" style="font-size:10.0pt;font-family:">Now using side thrusters(for 80 operating hours) Rotoque hubless thrusters which doesn’t need compensation.</span></div>
<div class="MsoNormal"><span lang="EN-GB" style="font-size:10.0pt;font-family:"> </span></div>
<div class="MsoNormal"><span lang="EN-GB" style="font-size:10.0pt;font-family:">Regards, Emile van Essen</span></div>
<div class="MsoNormal"><span lang="EN-GB" style="font-size:10.0pt;font-family:"> </span></div>
<div class="MsoNormal"><span lang="EN-GB" style="font-size:10.0pt;font-family:">Ps. For the Euro subbers; I have 2 new Rhino VX80 ( 24 VDC 38 Kgf) in surplus. </span></div>
<div class="MsoNormal"><span lang="EN-GB" style="font-size:10.0pt;font-family:">They are dismantled and already provided with 18”bsp thread for air /oil compensation.</span></div>
<div class="MsoNormal"><span lang="EN-GB" style="font-size:10.0pt;font-family:">The can go for half new price . If someone interested, pleas contact offlist.</span></div>
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<div class="MsoNormal"><b><span lang="EN-GB" style="font-size:10.0pt;font-family:">Van:</span></b><span lang="EN-GB" style="font-size:10.0pt;font-family:"> Personal_Submersibles [<a href="mailto:personal_submersibles-bounces@psubs.org">mailto:personal_submersibles-bounces@psubs.org</a>] <b>Namens </b>Alec Smyth via Personal_Sub</span><span style="font-size:10.0pt;font-family:">mersibles<br>
<b>Verzonden:</b> zondag 27 juli 2014 16:17<br>
<b>Aan:</b> Personal Submersibles General Discussion<br>
<b>Onderwerp:</b> Re: [PSUBS-MAILIST] Air compensating thrusters</span></div>
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<div class="MsoNormal">Yes. It is extremely low viscosity and before using it, I left snips of the motor's cables in a little jar of it for some months to make sure the insulation was not affected.</div>
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<div class="MsoNormal">Thanks,</div>
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Alec</div>
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<div class="MsoNormal">On Sun, Jul 27, 2014 at 9:49 AM, Jon Wallace via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:</div>
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Alec, just for completeness, what oil do you use in your MK's? Is it marvel mystery oil?<br>
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Jon</div>
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On 7/26/2014 10:43 PM, Private via Personal_Submersibles wrote:</div>
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<div class="MsoNormal">Alan, honestly you're over-analyzing this one. I would summarize it thus; air and oil compensation both work just fine, pick either one.</div>
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<div class="MsoNormal">I've run Snoopy with both air and oil compensation, using the same motors. I could not tell the difference, either in power or even in sound. I do agree the motors must in theory lose some efficiency with oil, but it was not in the least noticeable to me. </div>
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<div class="MsoNormal">Personally I prefer oil because the system has no moving parts and therefore in my book is simpler and more reliable, but again... both work just fine. </div>
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<div class="MsoNormal">As for all the stuff about dissolving plastics and brushes, I finally overhauled the thrusters last year for the first time. All I had to do was change the seals and brushes, and I turned the commutator on the lathe because the copper had some wear. These parts had lasted a decade. </div>
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<div class="MsoNormal">Best,</div>
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<div class="MsoNormal">Alec </div>
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