<DIV style="font-family:Arial, sans-serif; font-size:10pt;"><DIV>Alan, That is a real concern ! I've thought about that as far a injecting air into my ferro structure as well, I've only had it up to 5 or 6 psi. I have a rather large hole however, but I may move that hole to midship so that a radical angle either way would not bleed air off when trying to right myself. Temporary pressure in the fiber glass would not be good, I'll have a big hole in the bottom so no worries. </DIV><DIV> </DIV><DIV>I used wood and cardboard to form the mold, then tore everything out through two holes I made.</DIV><DIV> </DIV><DIV>Brian<BR><BR>--- personal_submersibles@psubs.org wrote:<BR><BR>From: Alan via Personal_Submersibles <personal_submersibles@psubs.org><BR>To: Personal Submersibles General Discussion <personal_submersibles@psubs.org><BR>Subject: Re: [PSUBS-MAILIST] New nose tank<BR>Date: Tue, 11 Jul 2017 10:34:46 +1200<BR><BR></DIV><DIV>Very good Brian,</DIV><DIV>how did you form it? I managed to split both my ambients fibreglass </DIV><DIV>ballast tanks by making the bottom hole too small. The air couldn't</DIV><DIV>force the water out quick enough!</DIV><DIV>Alan <BR><BR>Sent from my iPad</DIV><DIV><BR>On 11/07/2017, at 7:30 AM, Brian Cox via Personal_Submersibles <<A href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</A>> wrote:<BR><BR></DIV><BLOCKQUOTE><DIV><DIV style="font-family: Arial, sans-serif; font-size: 10pt;"><DIV>Hi All,</DIV><DIV> Been making progress on my new nose take. This tank is 6' long and tapers from 18" to 21" that's because of the shape of the sub's front nose section. I still need to put a bulkhead fitting for the vent and one for air injection. I will also be putting some syntactic foam inside which I'm getting from Scott. The tank is pretty strong as it is now but I may add another layer of fiberglass so it's a bit beefier.</DIV><DIV> </DIV><DIV>Brian </DIV></DIV></DIV></BLOCKQUOTE><BLOCKQUOTE><DIV><Fiberglass-tank7.jpg></DIV></BLOCKQUOTE><BLOCKQUOTE><DIV><fiber-tank-8.jpg></DIV></BLOCKQUOTE><BLOCKQUOTE><DIV><SPAN>_______________________________________________</SPAN><BR><SPAN>Personal_Submersibles mailing list</SPAN><BR><SPAN><A href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</A></SPAN><BR><SPAN><A href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</A></SPAN><BR></DIV></BLOCKQUOTE>_______________________________________________
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