NEA...*NITROGEN* enriched air diving

Hi All

Just wondering if anyone has heard of the latest mixed gas style of
diving? My buddies and I are diving air that is enriched with
Nitrogen.

Why on earth would we do that?

The idea is to enjoy the thrill that comes from 'rapture of the deep',
but at a depth that is sensible and not so dangerous.

A typical mix would be 97% nitrogen and 3% 02. This would be our
backgas in our doubles. We would also carry a stage bottle of normal
air as a travel mix, and a stage of 02 for decompression. We would
dive the travel mix to a max depth of 165 FSW (6 ATA)then switch to
backgas. We can then enjoy an EAD of 210 FSW!!! But this is done at
the relatively safe depth of 165. Our decompression is a little
shorter and safer than at 210 and we can instantly reduce the partial
pressure of nitrogen by switching to our travel mix should the
narcosis be too much. The best part is that oxtox is a non issue with
a P02 of .18 at depth.

This is a fantastic way to work up to deep air dives, or as a
prerequisite to trimix with out the risk of 'true' depth.

As no agency is currently teaching this, we are looking to start one
for certification of divers and gas blenders. Any input is
appreciated.

On 16 Oct 2004 19:35:23 -0700, nitrodvr@yahoo.ie (nitro diver) wrote:

>Hi All
>
>Just wondering if anyone has heard of the latest mixed gas style of
>diving? My buddies and I are diving air that is enriched with
>Nitrogen.
>
>Why on earth would we do that?
>
>The idea is to enjoy the thrill that comes from 'rapture of the deep',
>but at a depth that is sensible and not so dangerous.
>
>A typical mix would be 97% nitrogen and 3% 02. This would be our
>backgas in our doubles. We would also carry a stage bottle of normal
>air as a travel mix, and a stage of 02 for decompression. We would
>dive the travel mix to a max depth of 165 FSW (6 ATA)then switch to
>backgas. We can then enjoy an EAD of 210 FSW!!! But this is done at
>the relatively safe depth of 165. Our decompression is a little
>shorter and safer than at 210 and we can instantly reduce the partial
>pressure of nitrogen by switching to our travel mix should the
>narcosis be too much. The best part is that oxtox is a non issue with
>a P02 of .18 at depth.
>
>This is a fantastic way to work up to deep air dives, or as a
>prerequisite to trimix with out the risk of 'true' depth.
>
>As no agency is currently teaching this, we are looking to start one
>for certification of divers and gas blenders. Any input is
>appreciated.

Perhaps just use air and smoke a little crack before hand?

Laser

nitro diver wrote:
> Hi All
>
> Just wondering if anyone has heard of the latest mixed gas style of
> diving? My buddies and I are diving air that is enriched with
> Nitrogen.
>

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TROLL-O-METER is OFF THE SCALE!!!




--
More people died in Ted Kennedy's car than have been killed by my guns.

nitro diver wrote:
> Hi All
>
> Just wondering if anyone has heard of the latest mixed gas style of
> diving? My buddies and I are diving air that is enriched with
> Nitrogen.
>
> Why on earth would we do that?
>
> The idea is to enjoy the thrill that comes from 'rapture of the deep',
> but at a depth that is sensible and not so dangerous.
>
> A typical mix would be 97% nitrogen and 3% 02. This would be our
> backgas in our doubles. We would also carry a stage bottle of normal
> air as a travel mix, and a stage of 02 for decompression. We would
> dive the travel mix to a max depth of 165 FSW (6 ATA)then switch to
> backgas. We can then enjoy an EAD of 210 FSW!!! But this is done at
> the relatively safe depth of 165. Our decompression is a little
> shorter and safer than at 210 and we can instantly reduce the partial
> pressure of nitrogen by switching to our travel mix should the
> narcosis be too much. The best part is that oxtox is a non issue with
> a P02 of .18 at depth.
>
> This is a fantastic way to work up to deep air dives, or as a
> prerequisite to trimix with out the risk of 'true' depth.
>
> As no agency is currently teaching this, we are looking to start one
> for certification of divers and gas blenders. Any input is
> appreciated.

While this has great merit, it also has great drawbacks, the most
serious being the requirement for travel mix and deco mix. Just too
damned equipment-intensive.

I have been achieving the same results for years using Xenon. Although
considerably more expensive than Nitrogen, the equipment requirements
are far less complex and costly, typically a whiff in a paper bag with a
bit of rum and OJ.

Maybe we should save this and re-post in about 5 and a half months time as a
April Fools day wind-up?

"nitro diver" wrote ...
> Just wondering if anyone has heard of the latest mixed gas style of
> diving? My buddies and I are diving air that is enriched with
> Nitrogen.
>
> Why on earth would we do that?
>
> The idea is to enjoy the thrill that comes from 'rapture of the deep',
> but at a depth that is sensible and not so dangerous.

I proposed a similar thing quite awhile back as a possible method of
avoiding O2 toxicity while having the added benefit of a slightly better
narc for a lot less than the cost of adding helium to the mix... If you are
just looking for the additional narc factor, I would suggest that you go
with an oxy-argon mixture -- twice the narc for half the death or something
like that... <grin>

"Grumman-581" <grumman581-YYYY-MM@charter.net> wrote in message
news:10n54u13ddb4993@corp.supernews.com...
> "nitro diver" wrote ...
>> Just wondering if anyone has heard of the latest mixed gas style of
>> diving? My buddies and I are diving air that is enriched with
>> Nitrogen.
>>
>> Why on earth would we do that?
>>
>> The idea is to enjoy the thrill that comes from 'rapture of the deep',
>> but at a depth that is sensible and not so dangerous.
>
> I proposed a similar thing quite awhile back as a possible method of
> avoiding O2 toxicity while having the added benefit of a slightly better
> narc for a lot less than the cost of adding helium to the mix... If you
> are
> just looking for the additional narc factor, I would suggest that you go
> with an oxy-argon mixture -- twice the narc for half the death or
> something
> like that... <grin>
>
>

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