Why the dislike of air integrated computers?
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Nemrod,
I used to dive that same style Sea Quest jacket in the 80s! Thanks for the photos of the "J" regs. I dove a "J" tank but never actually saw the regs before (I dove teknas in the 80s). And, there are some of us who like seeing these historical items so thanks for posting.
I used to dive that same style Sea Quest jacket in the 80s! Thanks for the photos of the "J" regs. I dove a "J" tank but never actually saw the regs before (I dove teknas in the 80s). And, there are some of us who like seeing these historical items so thanks for posting.
DACOR Olympic 800 (800 had the integral reserve on the first stage)
DaleC
Contributor
I always get a little nervous when people start thinking simple is stupid.
For straight forward basic diving the J valve works just fine for me. But that's probably because I don't blindly depend on it as a sole means of planning and execution.
The only fault I might find with AI use, other than the cost vs necessity issue, is that one can wind up with a lot of data on the wrist without building those basic SOP's that make diving pretty safe. I have found over time that, as I learn these little tricks, I tend to rely on my computer less and less. It's a handy item no doubt, but my fall back doesn't rely on it. I would only caution new divers with big budgets to refrain from pushing the limits just because the display says it's ok until they learn how to extricate themselves should that display fail.
[video=youtube;L53TdKxrGkk]https://www.youtube.com/watch?v=L53TdKxrGkk[/video]
For straight forward basic diving the J valve works just fine for me. But that's probably because I don't blindly depend on it as a sole means of planning and execution.
The only fault I might find with AI use, other than the cost vs necessity issue, is that one can wind up with a lot of data on the wrist without building those basic SOP's that make diving pretty safe. I have found over time that, as I learn these little tricks, I tend to rely on my computer less and less. It's a handy item no doubt, but my fall back doesn't rely on it. I would only caution new divers with big budgets to refrain from pushing the limits just because the display says it's ok until they learn how to extricate themselves should that display fail.
[video=youtube;L53TdKxrGkk]https://www.youtube.com/watch?v=L53TdKxrGkk[/video]
Forgive the pasty white skin and lack of a shirt but depending upon the lifeguard, shirts are not allowed, I can only use the pool on Sunday mornings as it is. But you might like my only surviving and fully Tekna T2100, circa spring of 79 if I do recall. The Navy did not care for the later choked back T2100BX but this thing is a rocket. I did a 235 foot dive with it, and yes there was a reason, something that I wanted to see. And it was planned. There is this hole, well, never mind.
N
That is EXACTLY the model I dove. I am amazed that one still exists!
I dove it to 240' on air on the Wilkes-Barre off of Key West, a carefully planned dive in 1982. Double AL 80s, air (no mixed gasses then). Deco was on air until the 20' stop, where the operator had industrial 02 tanks on the boat, and set up hookah rigs for everyone at the 20 and 10 foot stops. Navy experimental tables only. He took dozens of people out there without incident, although two buddy teams had to abort on my trip when one of the pair narced out.
The Tekna was flawless. It was the go-to reg at that time for advanced deep divers here in S. Fla.
I just got a Poseidon, same servo design, and I have to say it delivers every bit as well as I remember my Tekna delivering, with the advantage that they moved the exhaust farther to the side and the purge facing to the side so no freeflow in a current. Nice to see that the techology still is, for me, the state of the art. Although I will say traditional regs are much closer now.
And, I do plan to get Kraken before the year is out!
I dove it to 240' on air on the Wilkes-Barre off of Key West, a carefully planned dive in 1982. Double AL 80s, air (no mixed gasses then). Deco was on air until the 20' stop, where the operator had industrial 02 tanks on the boat, and set up hookah rigs for everyone at the 20 and 10 foot stops. Navy experimental tables only. He took dozens of people out there without incident, although two buddy teams had to abort on my trip when one of the pair narced out.
The Tekna was flawless. It was the go-to reg at that time for advanced deep divers here in S. Fla.
I just got a Poseidon, same servo design, and I have to say it delivers every bit as well as I remember my Tekna delivering, with the advantage that they moved the exhaust farther to the side and the purge facing to the side so no freeflow in a current. Nice to see that the techology still is, for me, the state of the art. Although I will say traditional regs are much closer now.
And, I do plan to get Kraken before the year is out!
Eric Sedletzky
Contributor
Oh man, you guys are now treading in the "deep air" and death territory. Prepare for a S storm!
I've been reading this board for a long time, I know how this goes.
I've been reading this board for a long time, I know how this goes.
100days-a-year
Contributor
Better than the Decostop,but yeah.
Let's consider that at least for me in 1979, let's see, that was 36 year ago. In 1979 there was no technical diving, no nitrox, no such thing as recreational divers (which includes any diver not commercial) using trimix gases and there were in fact people who were versed in deep air.
I would never recommend anyone today to do that type of dive on air as there is no reason to. Today we have technical courses and all of the needed knowledge and equipment and more importantly easy access to mixed gases and even computers that can handle those gases. That just did not really exist in 1979, certainly not to the degree that we have this knowledge, courses and equipment today. And then there are rebreathers, how many had those in 1979?
Have we became that air bagged, helmeted, knee padded and apparently somebody thinks we need butt pads?
N
I would never recommend anyone today to do that type of dive on air as there is no reason to. Today we have technical courses and all of the needed knowledge and equipment and more importantly easy access to mixed gases and even computers that can handle those gases. That just did not really exist in 1979, certainly not to the degree that we have this knowledge, courses and equipment today. And then there are rebreathers, how many had those in 1979?
Have we became that air bagged, helmeted, knee padded and apparently somebody thinks we need butt pads?
N
AfterDark
Contributor
I've been pondering this thread and I think for me it is not a dislike of AI just a oh-hum reaction. Unlike when I 1st heard of SPGs, now that really caught my attention! I could see the great advantages of always knowing what my air supply is at the moment. That opened up a lot of other possibilities that were risky before having a SPG. For wreck and ice diving the measure of safety that was added was tremendous; it was the same for cave divers I'm sure.
AI didn't do that for me. I do like the heads up display AI systems and if I was 40 years younger I might look forward to buying one someday; but I'll be long gone before those types of devices are up to my standards for underwater use.
Maybe my Grandson who is 1.5 years old now will be diving with a reliable rebreather that measures the CO2 and O2 content of his blood and relays it to a CPU that adjusts the mixture to keep those within safe limits while increasing bottom time and reducing deco time, maybe with some yet to be developed voodoo gas mix and he will watch it all on a heads up display that he'll control with his facial muscles .
I'll stick to my hose and SPG for now. It really isn't a big deal to turn my wrist to look at my PDC or grab my console to check my air, at my age I need to keep moving.
Oh and to stoke the fire, I still do deep air with air only deco using USN air tables when the need arises. Why? Because I can, there's nobody to stop me.
AI didn't do that for me. I do like the heads up display AI systems and if I was 40 years younger I might look forward to buying one someday; but I'll be long gone before those types of devices are up to my standards for underwater use.
Maybe my Grandson who is 1.5 years old now will be diving with a reliable rebreather that measures the CO2 and O2 content of his blood and relays it to a CPU that adjusts the mixture to keep those within safe limits while increasing bottom time and reducing deco time, maybe with some yet to be developed voodoo gas mix and he will watch it all on a heads up display that he'll control with his facial muscles .
I'll stick to my hose and SPG for now. It really isn't a big deal to turn my wrist to look at my PDC or grab my console to check my air, at my age I need to keep moving.
Oh and to stoke the fire, I still do deep air with air only deco using USN air tables when the need arises. Why? Because I can, there's nobody to stop me.
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