Mailing List Archive

Mailing List: techdiver

Message Display

Nelson

    Are you following this same concept with the 80% you use at 20 ft and above.

Greg Z.

NPerry255@ao*.co* wrote:

> Greg,
>     There are several difficulties trying to deco to the surface on 36%
> Nitrox (vs. 50% O2), if you lose your O2: first, just from a practical
> standpoint, you need too much gas -- if you run a conventional
> Haldanian/Buhlman deco program, inc. a good one, like GUE Deco Planner, your
> 20' and 10' stops on EAN36 will be excessively long (remember, Manos was
> inquiring about a sub-200' dive) and you probably won't have the gas
> required; but even if you do, the QUALITY of decompression is poor ~ think of
> it as trying to deco from 110' to the surface on 64% Nitrogen!!  If you're
> lucky, you might get away with it (not get bent) -- but 50% O2 is much more
> effective from 70' all the way up... why risk using an inferior deco gas
> (36%)?
>     I used to do EAN36, because that's how I was originally taught ( ----->
> lots to unlearn); but since switching to 50% O2, I feel MUCH better, both
> during and after the dive ~ less fatigue, more alert (I think George
> mentioned tiredness as a typical sub-clinical result of high N2 loads...).
> Perhaps in the last analysis, the best summary I've heard is a quote
> attributed to Dr. Bill Hamilton: "What works, works..."  ~  and 50% O2 is
> what works.
>     Hope this clarifies,
>     Nelson Perry
> --
> Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'.
> Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.

--
Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'.
Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.

Navigate by Author: [Previous] [Next] [Author Search Index]
Navigate by Subject: [Previous] [Next] [Subject Search Index]

[Send Reply] [Send Message with New Topic]

[Search Selection] [Mailing List Home] [Home]