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Why is always the rum gone??? Oh thats why I've seen helis with floats before, but not any thing like Glen just described. Those sound very interesting. Glen what is the brand of those floats? The reason I first thought I wanted to add inflatable floats to my K-250, was to get a better idea of what I needed to do for a later sub I was thinking about, that needed inflatable floats on it for good surface egress. Since I would have a low hatch land height like Cliff has on the R300 on that design. Also I needed the pontoons to be packed in tightly under the FRP fairings, so I would be able to have less drag when traveling submerged. I think you right on the money Jay, with regards to making the pontoons out of strong enough material(s) to with stand the weight placed on them as well as having the proper valves. This is why I'm working with a local man that makes some of the very custom plastic welding machines that Zodiac uses. I'll be using Zodiac inflatable boats type materials. I might even use a existing banana shape design that I can purchase and have modified by my friend. If I recall correctly the floats only have some thing like 4 or 5 psi in them... I don't know how much presser the can take before rupture, but as you would expect that would depend on many different factors. Also I knew that the pontoons and there relief valves needed to be configured to allow a person to stand on the small platform that is above the floats as well as when the sub rocks in the waves, the floats might go under for a moment and will have greater stresses on them. But I don't want them to let air out at the surface through the relief valves, as Jay mentioned. I don't need the floats to keep the sub afloat, unless there are other problems. The Deep Flight Aviator is supposed to be equipped with inflatable lift bags for emergency surface egress. It looks like they can not get out of the sub unless they are first lifted out of the water other wise. It also looks like the occupants can not open the hatches from inside, from all the pictures I've seen. But I could be wrong about that. Your resident pipe dreamer ;)' Regards, Szybowski From: bottomgun@mindspring.com To: personal_submersibles@psubs.org Subject: RE: [PSUBS-MAILIST] Venting an Ambient Date: Fri, 5 Sep 2008 19:23:55 -0400 Hey folks, made it safely to the States and kicking back drinking some of that good rum those that attend the Conference had the opportunity to partake in.
Glen’s comment concerning the helo floats made me think and I now have to modify my reply to Brent concerning relief valves. The bags have to be constructed on sufficiently strong material to resist the internal pressure in the bags necessary to maintain the submersible on the surface. This also means that there needs to be sufficient resistance in the relief valves to also maintain this pressure.
Hope everyone understands what I am getting at here…it was perfectly clear to me after all this rum! J R/Jay
Jay K. Jeffries Andros Is., Bahamas
From: owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org] On Behalf Of glen brown
Hi Brent I fly helicopters for a living i mainly do whale watching due to the nature of this flying over water we use pop out inflatable floats they are tightly packed above our skids so stremlined that they hardly effect the aerodynamics of the machine yet when employed are able to keep the machine afloat.maybe something to look into. My 2 cent worth ps thanks for your help. Glen
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