<html><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_1441759385180_3007"><span>Brian,</span></div><div id="yui_3_16_0_1_1441759385180_3003" dir="ltr"><span id="yui_3_16_0_1_1441759385180_3002">I could see a collapsible escape pod working, I would think more telescopic than collapsible, kina like a hydraulic hoist cylinder on a dump truck.</span></div><div id="yui_3_16_0_1_1441759385180_3003" dir="ltr"><span>Hank</span></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 Tuesday, September 8, 2015 12:03 AM, Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br> </font> </div> <br><br> <div class="y_msg_container"><div id="yiv3839939960"><div><div style="font-family:Arial, sans-serif;font-size:10pt;"><div>Alan,</div><div> Do you remember Phil talking about that super strong collapsible navy escape pod ? He was pretty vague about it , I'd sure like to know more about that thing !</div><div> </div><div>Brian <br clear="none"><br clear="none">--- personal_submersibles@psubs.org wrote:<br clear="none"><br clear="none">From: Alan James via Personal_Submersibles <personal_submersibles@psubs.org><br clear="none">To: Personal Submersibles General Discussion <personal_submersibles@psubs.org><br clear="none">Subject: Re: [PSUBS-MAILIST] carbon fiber pressure vessel<br clear="none">Date: Mon, 7 Sep 2015 20:28:38 +0000 (UTC)<br clear="none"><br clear="none"></div><div class="yiv3839939960yqt7383631017" id="yiv3839939960yqt60635"><div style="color:rgb(0, 0, 0);font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;background-color:rgb(255, 255, 255);"><div dir="ltr"><span>Hi Hank,</span></div><div dir="ltr"><span>I looked at carbon fibre a number of years ago. At the time I found that there were other fiberglass / resin</span></div><div dir="ltr"><span>combinations that were just as strong under compression. I think epoxy / e-glass </span>is one I looked at. </div><div dir="ltr"><span>If you found a commercially made vessel similar to the shape of a sub, you would still have to make</span></div><div dir="ltr"><span>through hulls & holes for view ports that would need reinforcing. So you would need to add additional</span></div><div dir="ltr"><span>thickness to the original structure & hope your addition bonded well. Some resins rely on chemical bonding,</span></div><div dir="ltr">so any reinforcements would need to be done at the same time as the hull was layed up.</div><div dir="ltr">Graham hawk made a fiberglass sub (I think carbon fiber) it was a pretty complex proceedure.</div><div dir="ltr">I remember Phil saying he made something in fiberglass, possibly a Newt suit, & that it cost 5x as much to</div><div dir="ltr">make than if it were done in metal.</div><div dir="ltr">Additionally it would be hard for an amateur to analize for strength. The direction of the weave & proportion</div><div dir="ltr">of resin to cloth making a differance.</div><div dir="ltr">Alan </div><div dir="ltr"><span><br clear="none"></span></div><br clear="none"> <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"> <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"> <div dir="ltr"> <hr size="1"> <font face="Arial" size="2"> <b><span style="font-weight:bold;">From:</span></b> hank pronk via Personal_Submersibles <personal_submersibles@psubs.org><br clear="none"> <b><span style="font-weight:bold;">To:</span></b> Personal Submersibles General Discussion <personal_submersibles@psubs.org> <br clear="none"> <b><span style="font-weight:bold;">Sent:</span></b> Tuesday, September 8, 2015 3:12 AM<br clear="none"> <b><span style="font-weight:bold;">Subject:</span></b> [PSUBS-MAILIST] carbon fiber pressure vessel<br clear="none"> </font> </div> <div><br clear="none"><div><div><div style="color:rgb(0, 0, 0);font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px;background-color:rgb(255, 255, 255);"><div>There are some pretty amazing carbon fibre pressure vessels out there. Has anyone looked at a carbon fibre sphere as an occupant sphere.</div><div>Hank</div></div></div></div><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"><br clear="none"><br clear="none"></div> </div> </div> </div></div>_______________________________________________
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