DogDiver
Contributor
Ya, make sure your life insurance is up to date. When commercial and navy divers encounter problems, there is a chamber on deck that they have only a few seconds to shed their gear and get into.
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....This dive was on air. .....
...Particularly interested if shallow water blackout would be a realistic risk...
George Bond , USN made a 300 + in the early days
Cameron and Sam, did you have the sensation that you needed to exhale, or did your lungs vent on their own since you kept your airway open ?
Interesting work. Early on I thought you could only do a CESA from shallower depths. Not figuring in the pressure change that would've allowed you those two big breaths during the ascent. I wonder how deep one could do a CESA by grabbing breaths due to decreasing pressure.
But SWB from lack of O2 is not going to be a problem in your exact scenerio.
This doesnt really happen. Take a cylinder with 200psi in it to 100ft, take out a burst disk, the cylinder won't flood. The air will equalize to ambient pressure (4 bar, or 60psi) and that's about it. The opening is too small for the water to substantively exchange with the air inside. If the opening were "large" you would have far more important things to worry about - like where your organs went in the explosion.2. Getting negative as the tank floods with water is another risk a catastrophic failure can cause. The buoyancy shift is dramatic and I haven't heard it addressed.
This doesnt really happen. Take a cylinder with 200psi in it to 100ft, take out a burst disk, the cylinder won't flood. The air will equalize to ambient pressure (4 bar, or 60psi) and that's about it. The opening is too small for the water to substantively exchange with the air inside. If the opening were "large" you would have far more important things to worry about - like where your organs went in the explosion.