<html><head></head><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px"><div id="yui_3_16_0_1_1446934292530_6058" dir="ltr"><span>I think it a bad idea anyways because my deep diver sphere is a </span>piggy weight wise. No extra weight allowed. I will be copying Pisces opening geometry exactly.</div><div id="yui_3_16_0_1_1446934292530_6058" dir="ltr">Hank</div> <br><div class="qtdSeparateBR"><br><br></div><div class="yahoo_quoted" style="display: block;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12px;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div dir="ltr"> <font size="2" face="Arial"> On Saturday, November 7, 2015 3:12 PM, Sean T. Stevenson via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br> </font> </div> <br><br> <div class="y_msg_container"><div id="yiv4278444549"><div><div dir="ltr">I think that integral is always stronger than fastened, and in any case you need to take reinforcement requirements into account. Every opening you cut in the hull shell must be reinforced with additional material to retain the load carrying capacity. The absolute best way to do that is with a monolithic casting, but short of that, cutting a larger opening and welding in a thicker shell pad, tapered back to the main shell, and welded to the window seat with geometry which minimizes stress concentrations is the way to go. If you don't reinforce, you need to derate the entire shell, and are then carrying much more weight than necessary.</div>
<div dir="ltr">That said, having shells which open for access / maintenance is not a bad idea, but the flanges or reinforcing rings used for this purpose need to be substantial. </div>
<div dir="ltr">Sean<br clear="none">
</div>
<br clear="none"><br clear="none"><div class="yiv4278444549yqt6914494995" id="yiv4278444549yqtfd71311"><div class="yiv4278444549gmail_quote">On November 7, 2015 12:54:35 PM MST, hank pronk via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<blockquote class="yiv4278444549gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204, 204, 204);padding-left:1ex;">
<div style="color:#000;background-color:#fff;font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px;"><div dir="ltr" id="yiv4278444549yui_3_16_0_1_1446925806572_3107"><span id="yiv4278444549yui_3_16_0_1_1446925806572_3106">I would love to build it so it was all bolted together, I could see making bolt on window ports and hatch land. What do you think about that? What do you think about having the hemi heads machined with a flat face instead of a bevel. Hmmm that would be amazing!</span></div><div dir="ltr" id="yiv4278444549yui_3_16_0_1_1446925806572_3108"><span>Hank</span></div> <br clear="none"><div class="yiv4278444549qtdSeparateBR"><br clear="none"><br clear="none"></div><div class="yiv4278444549yahoo_quoted" style="display:block;"> <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px;"> <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"> <div dir="ltr"> <font face="Arial"> On Saturday, November 7, 2015 10:17 AM, Sean T. Stevenson via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br clear="none"> </font> </div> <br clear="none"><br clear="none"> <div class="yiv4278444549y_msg_container"><div id="yiv4278444549"><div><div dir="ltr">For a pressure hull? 100% radiographic examination (x-ray) on all butt joints, 100% ultrasonic examination on all joints other than butt joints, not less than 72 hours after welding is complete.</div>
<div dir="ltr">Surface inspection methods (liquid penetrant, magnetic particle or eddy current) at your discretion.</div>
<div dir="ltr">Criteria can be found in the ABS Guide for Nondestructive Inspection of Hull Welds (NDI Guide).</div>
<div dir="ltr">Sean<br clear="none">
</div>
<br clear="none"><br clear="none"><div class="yiv4278444549yqt5054546070" id="yiv4278444549yqtfd09028"><div class="yiv4278444549gmail_quote">On November 7, 2015 8:57:58 AM MST, hank pronk via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<blockquote class="yiv4278444549gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204, 204, 204);padding-left:1ex;">
<div style="color:#000;background-color:#fff;font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px;"><div><span>Sean,</span></div><div dir="ltr" id="yiv4278444549yui_3_16_0_1_1446911679619_3064"><span id="yiv4278444549yui_3_16_0_1_1446911679619_3063">I am looking for a company in Calgary to do NDT of welds on my deep diver and have discovered there are many different tests available. What tests should I be looking for?</span></div><div dir="ltr" id="yiv4278444549yui_3_16_0_1_1446911679619_3064"><span>Hank</span></div> <br clear="none"><div class="yiv4278444549qtdSeparateBR"><br clear="none"><br clear="none"></div><div class="yiv4278444549yahoo_quoted" style="display:block;"> <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px;"> <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;">!
<div dir="ltr"> <font size="2" face="Arial"> On Friday, November 6, 2015 6:51 PM, Sean T. Steve!
nson via
Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br clear="none"> </font> </div> <br clear="none"><br clear="none"> <div class="yiv4278444549y_msg_container"><div id="yiv4278444549"><div><div dir="ltr">My thoughts exactly. Thankfully, I've managed to avoid the worst effects of the downturn in oil and gas because our clients are worldwide. I'm doing some collapse testing right now on some large samples for an Alaskan LNG pipeline. Pretty impressive stuff to see 2" wall pipe bend like rubber in the big machines.</div>
<div dir="ltr">Sean<br clear="none"></div>
<br clear="none"><br clear="none"><div class="yiv4278444549yqt0095697615" id="yiv4278444549yqtfd39214"><div class="yiv4278444549gmail_quote">On November 6, 2015 6:36:00 PM MST, hank pronk via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<blockquote class="yiv4278444549gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204, 204, 204);padding-left:1ex;">
<div style="color:#000;background-color:#fff;font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px;"><div id="yiv4278444549yui_3_16_0_1_1446859999496_2850"><span>Well, now is the perfect </span>time to bust out the cheque book because steel is as low as it is going to be according to EE and they are pretty dead over there.</div><div id="yiv4278444549yui_3_16_0_1_1446859999496_2850">Hank</div> <br clear="none"><div class="yiv4278444549qtdSeparateBR"><br clear="none"><br clear="none"></div><div class="yiv4278444549yahoo_quoted" style="display:block;"> <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px;"> <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"> <div dir="ltr"> <font size="2" face="Arial"> On Friday, November 6, 2015 5:41 PM, Sean T. Stevenson via Personal_Submersibles
<personal_submersibles@psubs.org> wrote:<br clear="none"> </font> </div> <br clear="none"><br clear="none"> <div id="yiv4278444549"><div><div dir="ltr">No diesel. It will not operate independent of support capable of charging the batteries at the surface, though this may be accomplished by a portable generator if need be.</div>
<div dir="ltr">It may be left in the water (towed, secured alongside, loaded and offloaded etc.) for the duration of an expedition, but is not intended for long-term submergence, such as seasonal operation. Crane, A-frame or boat lift retrieval will be employed for storage and necessary maintenance.</div>
<div dir="ltr">Sean<br clear="none">
</div>
<br clear="none"><br clear="none"><div class="yiv4278444549yqt2003430337" id="yiv4278444549yqtfd80507"><div class="yiv4278444549gmail_quote">On November 6, 2015 5:16:12 PM MST, hank pronk via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<blockquote class="yiv4278444549gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204, 204, 204);padding-left:1ex;">
<div style="color:#000;background-color:#fff;font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px;"><div id="yiv4278444549yui_3_16_0_1_1446855028399_5216"><span>Do you intend on leaving the sub in the water full time (seasonal) Alsso sounds like it could have a diesel engine.</span></div><div id="yiv4278444549yui_3_16_0_1_1446855028399_5216"><span>Hank</span></div> <br clear="none"><div class="yiv4278444549qtdSeparateBR"><br clear="none"><br clear="none"></div><div class="yiv4278444549yahoo_quoted" style="display:block;"> <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px;"> <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"> <div dir="ltr"> <font size="2" face="Arial"> On Friday, November 6, 2015 5:02 PM, Sean T. Stevenson via Personal_Submersibles <personal_submersibles@psubs.org>
wrote:<br clear="none"> </font> </div> <br clear="none"><br clear="none"> <div class="yiv4278444549y_msg_container">Ambitious p!
roject,
subject to change as funding dictates. 4 person lockout submersible (pilot, supervisor, 2 divers). Large for a PSub, but sized for road / intermodal transport. Not ramp launchable. Operating depth of 600m, safety factor TBD. 48 hour mission, 72 hour reserve. Built to full ABS / GL compliance with documented tests (NDT, strain gauging, material and proof testing) to enable classification by engaging a surveyor in the future, but not classed at this time. When construction is completed, it will live in Vancouver - my second (first?) home.<br clear="none"><br clear="none">Sean<br clear="none"><br clear="none"><br clear="none"><div class="yiv4278444549yqt0113992184" id="yiv4278444549yqtfd74521"><br clear="none">On November 6, 2015 3:06:12 PM MST, hank pronk via Personal_Submersibles <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> w!
rote:<br clear="none">>Hi Sean,We have it all sorted!
out,
and they are going forward, my<br clear="none">>minimum thickness should be .875 not bad! <br clear="none">>As for your project, are you releasing clues? Hmmm that means two<br clear="none">>subs only 5 hr apart, nice! Hank <br clear="none"><br clear="none"><br clear="none">_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" target="_blank" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"><a rel="nofollow" shape="rect" target="_blank" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none"></div><br clear="none"><br clear="none"></div> </div> </div> </div></div><div style="margin-top:2.5em;margin-bottom:1em;border-bottom:x solid #000;"></div><pre class="yiv4278444549k9mail"></pre><hr><br clear="none">Personal_Submersibl!
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