I am taking a pole of technical divers.
I am curious how many GUE / Dir people are here
I am curious how is diving how
I am curious how many GUE / Dir people are here
I am curious how is diving how
Deep Air survey
- Thread starter AquaTec
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Your poll is unclear. Are you asking what training we've received? What we do on a regular basis? What we do from time to time? What we recommend? What we have done in the past, but won't do again?
DSSW,
WWW
DSSW,
WWW
I think this poll means to ask what your personal limits on air diving are. At least, that's the way I answered it. I guess that if you're "GUE trained" that automatically puts you in the "no more than 100 feet" category (at least that's what I gather from the posts I've seen from GUE advocates here).
Rick
Rick
FredT
Guest
Depth limits are a good thing, provided the diver understands the _reasons_ for the limits. A 250 dive on air is "safe" under very specific conditons, a 150' dive on air is NOT "safe" under other conditions.
The other side of this is the "safe" depth varies from person to person, and day to day. The symptoms each diver gets when approacing is limt a also differs diver to diver. Teaching a diver to recognise the signs HIS body gives when he is approaching HIS limit THAT DAY is difficult unless there is time for several dozen dives over a couple months or more. The first to hit a daily limit calls the dive for the team. My personal indicator is the condition of my upper lip. If it starts to tingle similar to an hour after having my front teeth numbed in the dentist's chair, my deep dive is over, right NOW! A lady I dove with off Andros starts tasting things, another diver gets a tingle like ants on his forehead. The symptoms vary, but all indicate a significant neurological effect is in place and it's time to go up.
Deep air experience is a good tool for the diver's bag, for use on specific VERY short trips, with VERY limited work to be performed. The down side is that to develop the experience to recognise the danger signs takes lots of deep time with another good safety diver. I doubt that it can be safely taught in a week's course, or even a month's course. At depths over 180' my dive time is measured in single digit breaths! A 220' bounce for a photo will be well planned with specific photo angles, range and target predetermined. I'll have the camera and strobes preset for that shot at the surface, the shutter tripped before breath 3, and film advancement done on the way up, at breath 5! O2 exposure on a short trip is not the problem it is on one where the dive is planned to last a while, and very limited nitrogen loading results beyond blood and other "fast" tissue.
The other side of this is the "safe" depth varies from person to person, and day to day. The symptoms each diver gets when approacing is limt a also differs diver to diver. Teaching a diver to recognise the signs HIS body gives when he is approaching HIS limit THAT DAY is difficult unless there is time for several dozen dives over a couple months or more. The first to hit a daily limit calls the dive for the team. My personal indicator is the condition of my upper lip. If it starts to tingle similar to an hour after having my front teeth numbed in the dentist's chair, my deep dive is over, right NOW! A lady I dove with off Andros starts tasting things, another diver gets a tingle like ants on his forehead. The symptoms vary, but all indicate a significant neurological effect is in place and it's time to go up.
Deep air experience is a good tool for the diver's bag, for use on specific VERY short trips, with VERY limited work to be performed. The down side is that to develop the experience to recognise the danger signs takes lots of deep time with another good safety diver. I doubt that it can be safely taught in a week's course, or even a month's course. At depths over 180' my dive time is measured in single digit breaths! A 220' bounce for a photo will be well planned with specific photo angles, range and target predetermined. I'll have the camera and strobes preset for that shot at the surface, the shutter tripped before breath 3, and film advancement done on the way up, at breath 5! O2 exposure on a short trip is not the problem it is on one where the dive is planned to last a while, and very limited nitrogen loading results beyond blood and other "fast" tissue.
OP
To clarify my pole
!st off I am not advocating deep air dive, I stopped doing them in the early 90's [don't tell anybody over in the deep air discution though] My definition of deep air was anything past my personal comfort zone. currently at 150ft. Most of my "deep air dives' are a result of setting my END there. I have generaly alway set my END between 130 and 150. so maybe I am stupid, but I am willing to learn also.
so Clarification
We all know that ther are people who don't practice what they teach. so scratch that.
What you plan to do in the future, or did before technology caught up is irrelevent here also
I want to know were your current limits are, say in the last year what depths have you been diving to.
The GUE question is just seperat info that there was room to ask at the same time
!st off I am not advocating deep air dive, I stopped doing them in the early 90's [don't tell anybody over in the deep air discution though] My definition of deep air was anything past my personal comfort zone. currently at 150ft. Most of my "deep air dives' are a result of setting my END there. I have generaly alway set my END between 130 and 150. so maybe I am stupid, but I am willing to learn also.
so Clarification
We all know that ther are people who don't practice what they teach. so scratch that.
What you plan to do in the future, or did before technology caught up is irrelevent here also
I want to know were your current limits are, say in the last year what depths have you been diving to.
The GUE question is just seperat info that there was room to ask at the same time
I voted the 131 - 150 range. I don't advocate deep air. However there is a specific dive that I do often. Most of the dive is about 120/125 with a 140 hole that we dip into (on initial descent). When we are at this site I am usually teaching at shallower depths making it inconvenient to have He in my tanks. My deepest air dive was 165. Even at 130 I find the diff. between air and mix to be dramatic. If had a portable blending station and a way to haul it I would probably never go beyond 100 (maybe even 80) without He.
100days-a-year
Contributor
Coupla my favorite wrecks for spearfishing are deeper than 130'.I use air deep only cause of the simplicity of single tank diving while spearfishing.These are basically bounces (5-10 min)Any input will be greatly appreciated
ninja
Guest
Depends i will do a wreck in the great lakes with no penetration to 150 on air no problems..
Although some dives do require mix in shallow water overhead enviroments etc..
NINJA
Although some dives do require mix in shallow water overhead enviroments etc..
NINJA
trymixdiver
Guest
About 6 years ago I was only doing deep air. As much as i pushed it i am surprised i am alive today. I really just didnt know better, i was young and felt invincable. I can honeslty say i had only one close call. I knew my body and sensed ( my entire right side went tingly) i needed to get shallower ASAP. now i look back on those dives and wonder what the hell i was thinking doing deep air dives. Stupidity IMO.
As far as now, i would consider diving to 120 or bouncing to 150 for under 5 min. But for the most part i will keep it around 100 and use Nitrox.
Air is for tires, gas is for divers
Andy
As far as now, i would consider diving to 120 or bouncing to 150 for under 5 min. But for the most part i will keep it around 100 and use Nitrox.
Air is for tires, gas is for divers
Andy
Lost Yooper
Guest
As I've said before, I have done a bit of deep air diving and never had a problem with narcosis, though I always felt quite poor following the dives.
So, how do I answer the question? I know, with some luck, I would be able to survive a dive to 180' without much problem. However, I don't think there is anything worth that risk underwater. I voted 100'-130', but even in those depths, I still come out feeling tired and sluggish afterwards. Nitrogen is the enemy 
.
Mike
So, how do I answer the question? I know, with some luck
, I would be able to survive a dive to 180' without much problem. However, I don't think there is anything worth that risk underwater. I voted 100'-130', but even in those depths, I still come out feeling tired and sluggish afterwards. Nitrogen is the enemy .Mike
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