<div dir="ltr"><div>Hank, I am planning on using the lifting bag technology as the inner spacial area between the hull and exoskeleton. The rubber material is the same as used on a inflatable rib. The challenge is the configuration of the tube so as to not over inflate, change the shape, and warp the exoskeleton. While not to be used as main ballast tanks, but as additional lifting capability while on the surface to lift our front pilot higher to get closer to the ABS freeboard height requirements. At least that is the plan.</div><div><br></div><div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div>Best Regards,<br>David Colombo<br><img src="http://static.squarespace.com/static/533310a9e4b0fba62008a464/t/5339c1f2e4b041bac4e25d1b/1396294132055/?format=500w" width="200" height="110"><br>804 College Ave<br>Santa Rosa, CA. 95404<br>(707) 536-1424<br><a href="http://www.SeaQuestor.com" target="_blank">www.SeaQuestor.com</a><br><br></div></div></div></div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, May 8, 2020 at 1:24 PM Sean T. Stevenson 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">Hank, I presume that keeping minimum profile is a design criterion? My first thought was lightweight but rigid tubes that the bladder can expand into, but of course that doesn't save any space. What is the shape and dimensions of the inflated bladder?<br><br>Sean<br><br><br><br><br>-------- Original Message --------<br>On May 8, 2020, 05:51, hank pronk via Personal_Submersibles < <a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>> wrote:<blockquote><br><div><div style="font-family:Helvetica Neue,Helvetica,Arial,sans-serif;font-size:13px"><div dir="ltr">Hi All, I have ordered a 50 gallon water bladder to experiment with for MBT's on my little sub project. The bladders are pretty tough because they are rated for 65 psi. I have to figure out how to secure them to the sub. I am thinking a fold away panel, or spring loaded straps. They have a 1.25 inch fitting on the top and on the end when laying flat. I need some ideas? I will have two side bags and one behind the sphere.</div><div dir="ltr">Hank</div></div></div>_______________________________________________<br>
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