[PSUBS-MAILIST] Still waiting

[Alan James via Personal_Submersibles]

Thanks for the update Brian,hope the test goes well.I am not an expert on vacuums but I believe the most external pressure you could possibly get onyour flexible hose (created by your vacuum)  at sea level is 14.7psi (atmospheric pressure).I did some calculations on clear plastic tube one time & found it could take more than I thought;somewhere around 100psi. However as soon as you squeeze or kink that hose out of round itbecomes very weak.Look forward to the test report.Alan

      From: Brian Cox via Personal_Submersibles <personal_submersibles at psubs.org>
 To: PSubs <personal_submersibles at psubs.org> 
 Sent: Thursday, May 25, 2017 11:31 AM
 Subject: [PSUBS-MAILIST] Still waiting
   
Hi All,                 Still waiting to do another test.  Been taking care of a lot of details.  I wanted to have a vacuum line that I could hook up to my portable compressor and I wasn't sure if the flexible hose would collapse or not, but it doesn't seem to be an issue.  Also had a couple of issues with my motor pod.  I had a unnecessary concentric pipe arrangement that was not sealing properly and realized I can just weld it.  This first motor pod, being the first prototype I had some extra fudge factor elements involved to help me get things aligned properly.  Now I have a better handle on what I need to do for the fabrication process.  Also had to locate another big truck to tow me down there to the harbor.  And I decided to make extra bars of lead, in case I'm not heavy enough.   Brian_______________________________________________
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