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<div>David,</div><div>The hemi head can be thinner steel for the same depth rating also. Extra buoyancy is a real treat, better to add lead for stability than foam for lift.</div><div>Hank</div><div><br></div>
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On Saturday, September 16, 2017, 1:01:47 PM MDT, David Colombo via Personal_Submersibles <personal_submersibles@psubs.org> wrote:
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<div><div id="yiv9487150517"><html><div><div dir="ltr"><div>Hank,<br clear="none"></div>Surprising it appears the ellipse head is the same weight as a hemi. The displacement however is 7.068 cf / 452# of lift for the hemi, vs 189+# of lift for the ellipse. I suppose the extra volume would allow me to add more battery weight though. Hmmm<br clear="none"></div><div class="yiv9487150517gmail_extra"><br clear="all"><div><div class="yiv9487150517gmail_signature"><div dir="ltr"><div>Best Regards,<br clear="none">David Colombo<br clear="none"><img src="http://static.squarespace.com/static/533310a9e4b0fba62008a464/t/5339c1f2e4b041bac4e25d1b/1396294132055/?format=500w" height="110" width="200"><br clear="none">804 College Ave<br clear="none">Santa Rosa, CA. 95404<br clear="none">(707) 536-1424<br clear="none"><a rel="nofollow" shape="rect" target="_blank" href="http://www.SeaQuestor.com">www.SeaQuestor.com</a><br clear="none"><br clear="none"></div></div></div></div>
<br clear="none"><div class="yiv9487150517gmail_quote">On Sat, Sep 16, 2017 at 10:12 AM, hank pronk via Personal_Submersibles <span dir="ltr"><<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>></span> wrote:<br clear="none"><blockquote class="yiv9487150517gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div class="yiv9487150517yqt4631255212" id="yiv9487150517yqt44835"><div><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div></div>
<div>David,</div><div>I think I paid around 600 dollars Canadian for my 36 inch hemi heads. Why are you not using hemi heads instead of dished? You can save weight and I bet that is important in your sub. </div><div><br clear="none"></div><div>Hank</div>
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On Saturday, September 16, 2017, 10:17:08 AM MDT, David Colombo 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>> wrote:
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<div><div id="yiv9487150517m_7589677958398475167yiv2811341594"><div><span class="yiv9487150517"></span><div dir="ltr"><div>Hi Alec,</div><div> I just spoke with the company that Roberto mentioned here in California to place an order for dished head for the SeaQuestor. I will be using the 36"OD x .375 A516-70 steel what they call Elliptical 2:1 Ratio ASME Code Type. It comes with a 2" flange which is really a 36" od ring shape as part of the forming. This would mate up to the 36"OD first hull section. I'm thinking that this would give me the best welding condition with two matched surfaces that I would bevel for full pen welding. I'm curious why not to have the flange? My cost here is $480.00 + $96 to have it shipped to northern California from southern California. even though its only a nine hour drive one way, I think my time would be worth more than $5 hr to pick it up. LOL Unless of course its cheaper in Canada (Hank), I might make the trip and could serve as support crew for the Gamma. Any thoughts out there from fellow Psubers would be appreciated.<br clear="none"></div></div><div class="yiv9487150517m_7589677958398475167yiv2811341594gmail_extra"><span class="yiv9487150517"><br clear="all"></span><div><div class="yiv9487150517m_7589677958398475167yiv2811341594gmail_signature"><div dir="ltr"><div>Best Regards,<br clear="none">David Colombo<br clear="none"><img src="http://static.squarespace.com/static/533310a9e4b0fba62008a464/t/5339c1f2e4b041bac4e25d1b/1396294132055/?format=500w" width="200" height="110"><br clear="none">804 College Ave<br clear="none">Santa Rosa, CA. 95404<br clear="none"><a rel="nofollow" shape="rect">(707) 536-1424</a><br clear="none"><a rel="nofollow" shape="rect" target="_blank" href="http://www.SeaQuestor.com">www.SeaQuestor.com</a><br clear="none"><br clear="none"></div></div></div></div>
<br clear="none"><div class="yiv9487150517m_7589677958398475167yiv2811341594yqt1871893310" id="yiv9487150517m_7589677958398475167yiv2811341594yqtfd57906"><div class="yiv9487150517m_7589677958398475167yiv2811341594gmail_quote"><span class="yiv9487150517">On Fri, Sep 15, 2017 at 2:28 PM, Alec Smyth via Personal_Submersibles <span dir="ltr"><<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs. org</a>></span> wrote:<br clear="none"></span><blockquote class="yiv9487150517m_7589677958398475167yiv2811341594gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><span class="yiv9487150517"></span><div dir="ltr">Ugh, mental typo. I meant "un-beveled" and "bevel them yourself", not "un-flanged" and "flange them yourself".<div><br clear="none"></div><div>!!!!!!!</div></div><div class="yiv9487150517m_7589677958398475167yiv2811341594HOEnZb"><div class="yiv9487150517m_7589677958398475167yiv2811341594h5"><div class="yiv9487150517m_7589677958398475167yiv2811341594gmail_extra"><br clear="none"><div class="yiv9487150517m_7589677958398475167yiv2811341594gmail_quote"><span class="yiv9487150517">On Fri, Sep 15, 2017 at 5:25 PM, Alec Smyth <span dir="ltr"><<a rel="nofollow" shape="rect" ymailto="mailto:alecsmyth@gmail.com" target="_blank" href="mailto:alecsmyth@gmail.com">alecsmyth@gmail.com</a>></span> wrote:<br clear="none"></span><blockquote class="yiv9487150517m_7589677958398475167yiv2811341594gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><span class="yiv9487150517"></span><div dir="ltr">Hi Roberto,<div><br clear="none"></div><div>I believe the short description for what you need is flanged, beveled, and code. You could get them unflanged, but it takes quite a while to make a flange with an angle grinder. The flanges if I recall are 2". Do set up a project page or something so we can follow progress!</div><div><br clear="none"></div><div><br clear="none"></div><div>Best,</div><div><br clear="none">Alec</div></div><div class="yiv9487150517m_7589677958398475167yiv2811341594gmail_extra"><br clear="none"><div class="yiv9487150517m_7589677958398475167yiv2811341594gmail_quote"><span class="yiv9487150517"></span><div><div class="yiv9487150517m_7589677958398475167yiv2811341594m_5552416619396528019h5">On Fri, Sep 15, 2017 at 5:07 PM, roberto alvarez via Personal_Submersibles <span dir="ltr"><<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.o rg</a>></span> wrote:<br clear="none"></div></div><blockquote class="yiv9487150517m_7589677958398475167yiv2811341594gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><span class="yiv9487150517"></span><div><div class="yiv9487150517m_7589677958398475167yiv2811341594m_5552416619396528019h5"><div dir="ltr">Hi, lost the plans cd for the k250, i am interested in the head selection, i found a seler in california and have <div>flanged ,beveled ,code, non code,</div><div><br clear="none"></div><div>Will apreciate your support in this ( until i found the plans cd )</div></div>
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