<html><body><span style="font-family:Verdana; color:#000000; font-size:10pt;"><div>Jon,</div>
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<div>Here are the cals for HY-100</div>
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<div>In order for 1000 meters, it has to be 0.606299 inches thick. It weighs 1910.48 lbs. When you calculate displacement it has 2277.57 lbs payload. Once you add emergency drop weight, batteries, etc it should be close to perfect with minimal syntactic foam.</div>
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<div>Thanks,<BR>Scott Waters </div>
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<BLOCKQUOTE id=replyBlockquote style="FONT-SIZE: 10pt; FONT-FAMILY: verdana; COLOR: black; PADDING-LEFT: 8px; MARGIN-LEFT: 8px; BORDER-LEFT: blue 2px solid" webmail="1">
<DIV id=wmQuoteWrapper>-------- Original Message --------<BR>Subject: Re: [PSUBS-MAILIST] exotic steel<BR>From: Jon Wallace via Personal_Submersibles<BR><<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><BR>Date: Thu, April 30, 2015 6:45 am<BR>To: Personal Submersibles General Discussion<BR><<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><BR><BR><BR>I've calculated 1" thick 516-70 gets you 2000-3300 feet depending upon <BR>safety factor, with a weight of 4000 pounds.<BR><BR>2" thick 516-70 gets you 5000-6700 depending upon safety factor, with a <BR>weight of 9200 pounds.<BR><BR>Deepworker 2000 uses spherical segments welded together which lightens <BR>the shell because each segment is the same thickness. In traditional <BR>forming of a hemisphere the metal will thin out at the apex and you must <BR>use that as your limiting factor in regards to max depth. So spherical <BR>segments get you to the same depth with lighter weight.<BR><BR>You might consider taking the C-Explorer approach and lighten the <BR>overall weight by using a steel hemisphere for the bottom half and an <BR>acrylic hemisphere for the top half.<BR><BR>Jon<BR><BR>_______________________________________________<BR>Personal_Submersibles mailing list<BR><a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><BR><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><BR></DIV></BLOCKQUOTE></span></body></html>