Charlie99
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not going on with a bunch of complaints saying that you shouldn't be in this situation:
I think your question can be rephrased as "What is the best use of a less than appropriate amount of gas?"
If you play with GAP or any other deco software, there is a typical deco curve. More time is always spent shallow. In addition, if you do run out of gas, it is a lot better to be shallow than deep.
The problem with a very rapid ascent from 140' all the way to 15' or to the surface is that this sort of rapid ascent seems to cause serious neurological problems / Type II DCS.
Somehow you need to achieve a balance.
My vote would be for 60fpm or even 120fpm up to 50', then a one minute stop at 50'. That gets your ascent rate under control. The 50' stop gives your fast tissues a chance to offload a bit. And you are within easy ESA distance of the surface.
At that point, reanalyze the situation, slow your breathing and plan the rest of your abbreviated stops.
DAN Europe studies have shown that instantaneous ascent rate is NOT correlated with DCS, while total ascent time is.
Clearly, you should be using both your gas AND your buddies. Obviously, it is better to avoid this sort of situation, as I'm sure others will tell you.
This is free advice. It's worth what you paid for it.
I think your question can be rephrased as "What is the best use of a less than appropriate amount of gas?"
If you play with GAP or any other deco software, there is a typical deco curve. More time is always spent shallow. In addition, if you do run out of gas, it is a lot better to be shallow than deep.
The problem with a very rapid ascent from 140' all the way to 15' or to the surface is that this sort of rapid ascent seems to cause serious neurological problems / Type II DCS.
Somehow you need to achieve a balance.
My vote would be for 60fpm or even 120fpm up to 50', then a one minute stop at 50'. That gets your ascent rate under control. The 50' stop gives your fast tissues a chance to offload a bit. And you are within easy ESA distance of the surface.
At that point, reanalyze the situation, slow your breathing and plan the rest of your abbreviated stops.
DAN Europe studies have shown that instantaneous ascent rate is NOT correlated with DCS, while total ascent time is.
Clearly, you should be using both your gas AND your buddies. Obviously, it is better to avoid this sort of situation, as I'm sure others will tell you.
This is free advice. It's worth what you paid for it.