I did this in 1966 in New London. Back then you had to qualify using only an inflatable life preserver. You had to blow a stream of bubbles all the way up to the surface or a skin diver would hold you down so you wouldn't rupture your lungs. (since the air in them expands 2 1/2 times). Then would bring you up in a diving bell before you got to try again. The first run was the trial run - the second run was for qualification. The Steinke hood was a lot easier to use. You had to yell HO-HO-HO on the way up so the skin divers knew you were exhaling because they couldn't see inside your hood.
I did this in New London in 1958. It was "blow and go" no mask no nothing. I am horrified watching this because these guys went ahead of their bubbles. The memory of this kicked in at eagle reef (80 fsw) and I dropped my weight belt and whistled my way to the surface. Huge chest pain and vomiting but no embolism.(later found out my epiglottis had slammed shut). That training is why I am on this side of the waves.
In the late fifties we did this without all the fancy equipment. Every submariner goes through this training and there is plenty of education about how to do it safely. I believe it is more of a psychological thing more than anything else. Less than one tenth of the ocean is shallow enough to escape. Old subs would crush from sea pressure after 800 to 1000 feet. The new ones are better but you still could not escape at those depths.
Yup, went through this in '78, called out ho, ho, ho to the top, pulled the hood and yelled out I feel fine to the instructor up top. Went through this with a group of Iranian sailors, a couple of them didn't fair too well.
They don't get bent because they aren't deep enough, long enough for it to be an issue. No decompression limits at the depth of the pool is more than 10 minutes, and they aren't down longer than that, I'd imagine.
When I went through this in 1972, it was explained that 400 feet was the maximum depth from which one could safely escape. This was because of the amount of time it takes to pressurize the escape compartment and rise to the surface. We were also told that at that depth we could expect to blow our eardrums. At 50 feet no problem, I for one, had fun and was disappointed that I could only do it once. Oh, and breathing through your nose? There's no room in your lungs to accept any more air, you're always breathing out.
went thru this training in the early 80's. We were told to yell HO! HO! HO! all the way up.
Yep..me to. Went through it in 1980 myself...ho..ho..ho!!!!
I did this in 1966 in New London. Back then you had to qualify using only an inflatable life preserver. You had to blow a stream of bubbles all the way up to the surface or a skin diver would hold you down so you wouldn't rupture your lungs. (since the air in them expands 2 1/2 times). Then would bring you up in a diving bell before you got to try again. The first run was the trial run - the second run was for qualification.
The Steinke hood was a lot easier to use. You had to yell HO-HO-HO on the way up so the skin divers knew you were exhaling because they couldn't see inside your hood.
I did this in New London in 1958. It was "blow and go" no mask no nothing. I am horrified watching this because these guys went ahead of their bubbles. The memory of this kicked in at eagle reef (80 fsw) and I dropped my weight belt and whistled my way to the surface. Huge chest pain and vomiting but no embolism.(later found out my epiglottis had slammed shut). That training is why I am on this side of the waves.
In the late fifties we did this without all the fancy equipment. Every submariner goes through this training and there is plenty of education about how to do it safely. I believe it is more of a psychological thing more than anything else. Less than one tenth of the ocean is shallow enough to escape. Old subs would crush from sea pressure after 800 to 1000 feet. The new ones are better but you still could not escape at those depths.
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New Suits allow up to 600 Feet deep escape (tested). At this point why not have an escape pod?
Yup, went through this in '78, called out ho, ho, ho to the top, pulled the hood and yelled out I feel fine to the instructor up top. Went through this with a group of Iranian sailors, a couple of them didn't fair too well.
I did this without a hood in 1964 at sub school New London and with the hood at Pearl as a crew member of Carbonero SS 337.
what a nightmare to do this in real life. complete darkness cold water you cant se anything.
good video
I'm a certified diver and this still scares me
Actually it was fun.
so how do they not get the bends? and what would happen if they breathed through their nose
They don't get bent because they aren't deep enough, long enough for it to be an issue. No decompression limits at the depth of the pool is more than 10 minutes, and they aren't down longer than that, I'd imagine.
When I went through this in 1972, it was explained that 400 feet was the maximum depth from which one could safely escape. This was because of the amount of time it takes to pressurize the escape compartment and rise to the surface. We were also told that at that depth we could expect to blow our eardrums. At 50 feet no problem, I for one, had fun and was disappointed that I could only do it once. Oh, and breathing through your nose? There's no room in your lungs to accept any more air, you're always breathing out.
Remember breathe through your mouth
Everyone grab your see through trashbags and huddle the compressor were abandoning ship
this is not done anymore i assume looks dangerous
Still in use, just better equipment. It might be dangerous, but it's no worse than suffocating in a sub that's stranded on the bottom.
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Shouldn't they explain why you must breath out during ascent? Not doing so is almost certain death, the recruits would have remembered that.
They did explain it...in detail. It's just not in this training film.
Wtf??!