Exactly how deep is "Deep Air?"

[Cave Diver]

which begs the question: why keep making them?
maybe I should make another one to ask that question...

Because I wanted to know what people were arguing about. Everyone throws the term out there, but typically people refer to END>100' or people talk about dives to 200'. I thought it might be an interesting exercise to see what the term meant to different people.

 

[Cave Diver]

Geesh guys... Live and Let live (or die).

This horse is way friggin dead. Quit beating it.

You do realize by posting in here, you're holding a stick too, right?

 

[LiteHedded]

i wonder if the poll would be different in T2T

 

[Cave Diver]

This thread should have been split off about 5 pages ago

I'll probably look into that a bit later.

 

[Cave Diver]

A little add on, DaleC. You'll notice a number of deaths of trained cave divers at END's past 100', which just reinforces my point.

Hasn't the depth rule of accident analysis undergone some changes in recent years?

I seem to recall a recommended max of 100'. Then it went to 130'. The last I recall was that it was "no deeper than the depth you've received training for." What I don't remember is if they were imposing it as a depth limit, or if they were using an END limit as the use of Trimix started to become more mainstream.

Here's one link to the topic (and a cool pic! ):

How Do You Cave Dive?

Although only one in ten cave diving fatalities involves certified cave or cavern divers, 90 percent of these fatalities take place on dives in which participants expose themselves to an Equivalent Narcotic Depth (END) of 130 feet or more. At these depths, factors such as nitrogen narcosis, high partial pressures of carbon dioxide — and physiological mechanisms that experts have yet to understand — can either lead directly to a diver’s demise, or contribute substantially to his or her death.

 

[PfcAJ]

Ya, there's an ebb and flow as the thoughts and feelings of the cave diving community changes, but more or less its 100-130 across the board.

The game just changes when you go deep, no matter if its OW or cave. Its that simple. I fully understand that correlation does not necessarily mean causation, but with out correlation, you can't have causation

Narcosis in and of its self doesn't kill divers, its always a combo. The killings will continue until agencies and old timers check the ego at the door and start acting in the interest of diver safety instead of chest beating, machoism, toughness, and other nonsense. If the agencies knew best, we'd still be doing old,antiquated practices. This is just another one of those things that needs to be phased out.

Thankfully, conversations like this provoke thought amongst those who dive deep and want to dive deep.

 

[DCBC]

The killings will continue until agencies and old timers check the ego at the door and start acting in the interest of diver safety instead of chest beating, machoism, toughness, and other nonsense. If the agencies knew best, we'd still be doing old,antiquated practices. This is just another one of those things that needs to be phased out.

The expert has spoken...

 

[PfcAJ]

I wish I had your amazing judgement. Just take a look at these two posted by you. Real safe attitude.

http://www.scubaboard.com/forums/near-misses-lessons-learned/315141-deep-solo-wreck-dive.html

http://www.scubaboard.com/forums/whine-cheeze/315593-where-macho-diving-today.html

For someone with so much experience, you sure aren't good at putting two and two together. Give me a reason, just one, on why deep air is smart. I didn't say cheap, I said smart. What advantage does it have? Other than something to brag about cuz you're a tough guy.

 

[BHB ScubaTroll]

Character A: The water is cold....
Character B: It's deep too...

 

[MXGratefulDiver]

Because the old DIR vs non DIR threads died off and no one does those anymore. And you can't bad mouth spearfishing in the Underwater Hunting forum. Where else can we argue?

The Pub ... but all anyone wants to talk about there is American politics ... arguing about scuba-related topics is less depressing ...

... Bob (Grateful Diver)