DEEP DEEP diver??
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I don't give a s**t about that either. Whatever it is, it's not worth anybodys life.SeaHound:
From what I've read, probably 99.9% are in category 1. At least at first.SeaHound:
SeaHound, during one of my scuba classes (DIRF) we did a little experiment that was very sobering. I suggest you try it on your next dive.
The object is to drop to 40 feet then come back up.. on a schedule. 30 second move, 30 second stop at each 10 feet. Take 30 seconds to descend to 10 feet, stop there for 30 seconds. Take another 30 seconds to descent do 20 feet, stop there for 30 seconds. Do the same on the way up. If you did it right, you will surface at exactly 8 minutes into your dive.
Sounds easy right? Try it out. It's more difficult than I was able to imagine.
Now imagine your life relying on making those stops and maintaining a deco schedule that requires you to be that exact, with the added problems of gas switches, multiple tanks, etc. This is of course assuming nothing went wrong during the dive. Now imagine trying to do this task - which you can't in the first place - with the task loading of gas switches and up lines, but with no mask, a missing fin, and suddenly at 40 feet a freeflowing first stage on one of your tanks. Still think you can maintain the schedule and ascent rates?
That stuff is *damned* tough. Seriously, go do the experiment. Then think about doing another dozen things while you're bumbling around like my entire class was.
The object is to drop to 40 feet then come back up.. on a schedule. 30 second move, 30 second stop at each 10 feet. Take 30 seconds to descend to 10 feet, stop there for 30 seconds. Take another 30 seconds to descent do 20 feet, stop there for 30 seconds. Do the same on the way up. If you did it right, you will surface at exactly 8 minutes into your dive.
Sounds easy right? Try it out. It's more difficult than I was able to imagine.
Now imagine your life relying on making those stops and maintaining a deco schedule that requires you to be that exact, with the added problems of gas switches, multiple tanks, etc. This is of course assuming nothing went wrong during the dive. Now imagine trying to do this task - which you can't in the first place - with the task loading of gas switches and up lines, but with no mask, a missing fin, and suddenly at 40 feet a freeflowing first stage on one of your tanks. Still think you can maintain the schedule and ascent rates?
That stuff is *damned* tough. Seriously, go do the experiment. Then think about doing another dozen things while you're bumbling around like my entire class was.
Actually, the forty-ft. experiment is not a bad idea.
Small problem: the orginal poster seems to believe that whatever it is that he will be too narced to video properly once he gets down there is worth the huge risk to his neck. I have seen much good advice in this thread to see it ignored.
If you want the risks spelled out:
Narcosis will be a severe problem at that depth. Try managing a video camera to boot. Now, with a small number of dives is the diver's brain going to have it's underwater instincts re-tuned to be able to handle a simple emergency like entanglement? Forget using tri-mix to clear the narcosis at this point. No reputable tri-mix training agency will do the training with this small of a number of dives. Maybe it would be better to wait until you can do the dive more safely with tri-mix.
Gas management: With the limited number of dives, the diver probably won't have the experience necessary to move underwater with all the attendant gear/gas to do this safely. This is a case of experience being more necessary than fast training.
Buoyancy control at deco stops: Can you do this in open water with no visual reference? You may have to do this for more than an hour if you execute this dive regardless. When you have to, it is near sucidical to do this in a short period of time from now (ie with extremely limited experience).
I could add more, but that list is already going around as it were. In short remember the lessons learned by people like Christropher Murley. I don't think that I can be more blunt, yet more polite at the same time.
Small problem: the orginal poster seems to believe that whatever it is that he will be too narced to video properly once he gets down there is worth the huge risk to his neck. I have seen much good advice in this thread to see it ignored.
If you want the risks spelled out:
Narcosis will be a severe problem at that depth. Try managing a video camera to boot. Now, with a small number of dives is the diver's brain going to have it's underwater instincts re-tuned to be able to handle a simple emergency like entanglement? Forget using tri-mix to clear the narcosis at this point. No reputable tri-mix training agency will do the training with this small of a number of dives. Maybe it would be better to wait until you can do the dive more safely with tri-mix.
Gas management: With the limited number of dives, the diver probably won't have the experience necessary to move underwater with all the attendant gear/gas to do this safely. This is a case of experience being more necessary than fast training.
Buoyancy control at deco stops: Can you do this in open water with no visual reference? You may have to do this for more than an hour if you execute this dive regardless. When you have to, it is near sucidical to do this in a short period of time from now (ie with extremely limited experience).
I could add more, but that list is already going around as it were. In short remember the lessons learned by people like Christropher Murley. I don't think that I can be more blunt, yet more polite at the same time.
UGA
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This guy is reminiscent of the stereotypical doctor who gets his pilot's certificate flying a Cessna 150 and suddenly thinks he can fly a Bonanza.
headhunter:Mike,
With all due respect, I think armyscuba's post may have been misinterpreted.
I read it more like this (my paraphrase with lots of liberties taken to fill in the gaps):
[If you want to dive deep then go ahead and learn to dive deep. Make sure you get instruction and guidance. Everyone should encourage this new diver to reach his goals, but in doing so, encourage him to do so in a safe manner and not be too much in a hurry. Let's have our experienced divers answer as many questions as we can to set him on the right path.]
I know that's not exactly what armyscuba said, but I believe that's what he implied. Maybe we're incorrectly mistaking SeaHound's enthusiasm for stupidity.
OK, I'm now stepping away from the podium for devil's advocacy and keeping my hands OFF the keyboard and where you can see them.
Christian
No...this is what he said in an earlier post and this is what I was refering to...
armyscuba:
It looks to me like he's recommending AOW and rescue as preperation for a 180 ft dive.
I was pointing out that not only are those classes NOT deep dive training they aren't even required for the courses that are with most agencies.
I don't at all see his post as encouraging this diver to reach his goals in a safe manor.
I haven't noticed any one in this thread telling the poster that he shouldn't go film the wreck but only that he has a long way to go before he's qualified to do it.
seahound wants to dive the USS Oriskany if any of his posts on other threads are anything to go by, so everybody else, back off because it is HIS baby.
jonnythan:
That sounds interesting I will try it. Just wondering how you track 30 seconds? My BT only does minutes Count 1thousand.... 2thousand....?
cheers,
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