<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>Hi everyone..</div><div><br></div><div>I an still toying with two designs of PSUB, one larger, steel and with an AUX diesel engine 3PAX…. But also with a smaller 2PAX more mobile system and have been looking into the possibility of using HDPE as a hull material for a small 100msw PSUB</div><div><br></div><div><a href="http://www.vinidex.com.au/products/pe-pipe-systems/pe-pressure-pipe/">http://www.vinidex.com.au/products/pe-pipe-systems/pe-pressure-pipe/</a></div><div><br></div><div>There is off the shelf (Sort of) 1000mm OD pipe here in Australia with a 60mm wall thickness but I have also come across a 1360mm-OD and 1650mm-OD pipe again with 60mm wall thickness that may be available. HDPE can be welded, drilled and tapped quite well and using fittings/penatrators made of delrin with o'ring seals has worked well on some camera housings I have made.</div><div><br></div><div>Has anyone looked further into this? is the wall thickness enough to just have bulkheads instead of stiffeners? no corrosion problems and it is super slippy in the water!</div><div><br></div><div>I have always looked at having HDPE battery pods, what not the whole sub?</div><div><br></div><br><div apple-content-edited="true">
<div style="color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div style="color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div style="color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div style="color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>Dean Cropp</div><div><br></div><div>~ Underwater DOP ~ Ocean Wrangler ~ </div><div><span class="Apple-tab-span" style="white-space: pre; "> </span>Sydney : Australia</div><div><br></div><div>p: 0416287833 (Int p: +61 416 287 833)</div><div>e: <a href="mailto:croppycam@bigpond.com">croppycam@bigpond.com</a></div><div>s: croppycam</div><div>w: <a href="http://www.accessallangles.com">www.accessallangles.com</a></div><div><br></div></div><br class="Apple-interchange-newline"></div><br class="Apple-interchange-newline"></div><br class="Apple-interchange-newline"></div><br class="Apple-interchange-newline"><br class="Apple-interchange-newline">
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