I need a favor

[PerroneFord]

Agreed Mike, but I didn't know it was an academic discussion with the original post.

 

[Mike Edmonston]

I think that the majority of tech divers on the board just want to be careful. We're not giving out random Deco information blindly, because we actually care about other divers. Alot of us are instructors, and would feel REALLY BAD if something happened due to information that we shared.

We just don't want to see you in the accident / incident forum.

Dive Safe

Cheers.

Mike

 

[Colliam7]

I can't speak for anyone else, but I checked your profile, and found it bare. Your signature offers nothing to say that you are a technical diver. So I felt less than comfortable offering decompression dive advice to someone who might take it and try to do this dive on it somehow without proper training.

Good point. Now, call me crazy but is it possible that there are some on SB who might wonder how much credence to give to a response from a member whose profile indicates 'No certification', notwithstanding the obvious experience and insight evident in the answer. I would never do that, of course.

 

[Colliam7]

I need to know what deco time your deco program gives for a dive to 130 feet for 50 minutes is on a 16/40 mix.

With DPLAN, assuming that the specified backgas mix (16/40) is used for deco, AND using my individual SAC rates for bottom time and deco time, ascent rates, etc., I get a runtime over 580 minutes for a theoretical dive profile with bottom time of 130 feet for 50 minutes.

Having first answered your specific inquiry (with necessary caveats, of course), I would be interested to know more about the context of your original question.

 

[PerroneFord]

Now, call me crazy but is it possible that there are some on SB who might wonder how much credence to give to a response from a member whose profile indicates 'No certification', notwithstanding the obvious experience and insight evident in the answer.

And this is EXACTLY why my profile reads like it does. My statements are solely my opinion, and should be taken with exactly the weight you mention here.

 

[Mike Edmonston]

And this is EXACTLY why my profile reads like it does. My statements are solely my opinion, and should be taken with exactly the weight you mention here.

I like your profile, but I have a serious question for you.

Being part of the BORG collective, why do you need a regulator when you already have those tubes running into your cheek. Are those for DECO only? or are they not DIR, therefore you must isolate them.

Just curious...

Cheers

Mike

 

[PerroneFord]

Those are life-force tubes. When entering the aqueous environment, we must don specialized equipment.

Thank you, please drive through.

 

[The_DivePirate]

jbd,

I can't speak for anyone else, but I checked your profile, and found it bare. Your signature offers nothing to say that you are a technical diver. So I felt less than comfortable offering decompression dive advice to someone who might take it and try to do this dive on it somehow without proper training.

Had you indicated your intended purpose, and that you had v-planner but it was unavailable to you, I, and others might have felt differently.

Now, that said, I don't know HOW jtivat got his runtime of 161 minutes. on V-planner, I got 238 minutes or whatever using conservatism +2 and no deco gas because you didn't indicate any. A diver who might actually do a dive such as this would almost certainly NOT do it on 16/40 as it is an absolute waste. So your question set off red flags in my head. Others probably felt the same. Doing the same dive on air would get you out of the water much faser. Doing it on common normoxic would get out out of the water faster and cheaper. Doing it with normoxic and 50% would cut the time down tremendously, probably cut the cost of gas down by 2/3, and would almost certainly be the preferred method by most people I know.

Best of luck learning about deco and mixed gas diving with v-planner.

Could not have said it better!!!
Still seems a little fishy.
With the exp. your sig. shows, one would think there would would have been mention of at least a 50/50 mix for the stop.
Keep training, it's a little confusing, but you'll get it.

Dive safe/Train hard
Joe

 

[PerroneFord]

With the exp. your sig. shows, one would think there would would have been mention of at least a 50/50 mix for the stop.
Keep training, it's a little confusing, but you'll get it.

My sig? Don't believe everything you read on the internet. It'll be quite some time before I need mix on deco! I've just started needing deco gas at ALL! And only on the occasional dive.

These longer cyberdives are getting demanding.

 

[wedivebc]

'No certification', notwithstanding the obvious experience and insight evident in the answer. I would never do that, of course.

fooled you too eh?