[PSUBS-MAILIST] onboard gear

[Shanee Stopnitzky via Personal_Submersibles]

Have there been many submersible escapes historically? I know submarines yes, but wondering if there are incident reports in the world or peoples brains about anyone escaping a submersible and what the circumstances were. 

Institute for Emergence//Community Submersibles Project

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'The fact remains that political frontiers are impervious to our verbal cultures, while the substantially nonverbal civilization of playfulness crosses them with the happy freedom of the wind and the clouds.' ~ Primo Levi 

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'Caught up in a mass of abstractions, our attention hypnotized by a host of human-made technologies that only reflect us back to ourselves, it is all too easy for us to forget our carnal inherence in a more-than-human matrix of sensations and sensibilities. Our bodies have formed themselves in delicate reciprocity with the manifold textures, sounds, and shapes of an animate earth. Our eyes have evolved in subtle interaction with other eyes, as our ears are attuned by their very structure to the howling of wolves and the honking of geese. To shut ourselves off from these other voices, to continue by our lifestyles to condemn these other sensibilities to the oblivion of extinction, is to rob our own senses of their integrity, and to rob our minds of their coherence. ' ~David Abrams

> On Apr 22, 2019, at 2:40 PM, Sean T. Stevenson via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
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> Saturation is a different animal entirely.  In sat, your PPO2 is likely kept below 0.4 atm because of the indefinite exposure duration, and your excursion limits change as opposed to surface-oriented (bounce) diving.  A sub escape is ideally a really rapid bounce, blowing down as fast as you can equalize, locking out and ascending as fast as possible when deep, and if at all possible, slowing down a bit as you approach the surface.  Getting on 100% oxygen once you have surfaced is going to be a big help for survivability too. As you say though, blown eardrums (barotrauma), bends (decompression sickness), hypothermia and all the rest are secondary considerations to just getting the hell out and getting to air.
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> Sean
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> ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
>> On Monday, April 22, 2019 2:09 PM, Rick Patton via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
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>> I have a friend that I keep in contact with that was a rack operator back in the day that mixed the gas for the sat systems that I used to be in and was going to have him do the math to get the proper mix and gases so that I wouldn't have the 02 toxicity problems that you speak of. As long as you don't go lower than the 16% PP02 to sustain life and you don't dilly dally at depth which you wouldn't, it should be fine. My flood valve is 2" ID so should flood sub quite quickly but probably going to come away with blown eardrums even though I am really good at clearing my ears. My bailouts are also 30 Cu. Ft.
>> Rick
> 
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