<div dir="ltr">Jon <div><br></div><div>sorry I didn't get back to you yesterday. My OD on the hatch groove is 23.75" and 23.25" OD with a just under a 1/4" dia groove, but haven't looked on what the drawings say. Don't have my O ring to give you that data you wanted.</div><div>Hope that helps</div><div><br></div><div>Rick</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Jun 9, 2021 at 3:08 PM Jon Wallace via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div style="font-family:"times new roman","new york",times,serif;font-size:16px"><div></div>
<div dir="ltr">Good to know. Thanks Rick.</div><div><br></div>
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On Wednesday, June 9, 2021, 08:54:13 PM EDT, Rick Patton via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>> wrote:
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<div><div id="gmail-m_-783452721126072046ydp20a65cb3yiv3025589221"><div>Jon<div>Dan Hycroft has been my mentor while building my sub as the captain I think got tired of my calling him for clarification on things due to the plans lacking in various places. I would try him as he is a wealth of information. I stay in touch with him so let me know if you need his number.</div><div>Rick <br clear="none"><br clear="none"><div dir="ltr">Sent from my iPhone</div><div dir="ltr"><br clear="none"><blockquote type="cite">On Jun 9, 2021, at 10:01 AM, Jon Wallace via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>> wrote:<br clear="none"><br clear="none"></blockquote></div><blockquote type="cite"><div dir="ltr"><div style="font-family:"times new roman","new york",times,serif;font-size:16px"><div dir="ltr">I found this K-600 drawing (see attached image) of MBT vent valve dated March 23, 1976. Rejected I suspect because it brought a water source into the cabin and offered multiple leak points. The date listed on the drawing is interesting because even going back to the MK-III vessel which predates VAST, I'm seeing the traditional MBT vent valve outside the conning tower with just the valve stem protruding inside. Was this something he considered an improvement that was rejected by the Norwegians? Did it vent faster? George, you left us with many questions.</div><div dir="ltr"><br clear="none"></div><div dir="ltr">Jon</div></div><div><mbt-vent.jpg></div><span>_______________________________________________</span><div id="gmail-m_-783452721126072046ydp20a65cb3yiv3025589221yqtfd40903"><br clear="none"><span>Personal_Submersibles mailing list</span><br clear="none"><span><a href="mailto:Personal_Submersibles@psubs.org" target="_blank">Personal_Submersibles@psubs.org</a></span><br clear="none"><span><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a></span><br clear="none"></div></div></blockquote></div></div></div><div id="gmail-m_-783452721126072046ydp20a65cb3yqtfd90934">_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a shape="rect" href="mailto:Personal_Submersibles@psubs.org" rel="nofollow" target="_blank">Personal_Submersibles@psubs.org</a><br clear="none"><a shape="rect" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" rel="nofollow" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none"></div></div>
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