An age-old question: ways to 60m.

[old frogman]

Often the only noticeable difference between educated perception and foolhardy rule-breaking is whether one dies or not. Since not all such acts cause death, it is not a very useful distinction. Those who survive are quite noisy about it, those who don't are pretty quiet. So we hear a lot of noise.

Mate, you definitely need prescription spectacles. I said, "challenge rules" not "break rules".

Again, stop situating the argument to justify your ideological beliefs.

 

[tursiops]

Again, stop situating the argument to justify your ideological beliefs.

I've made four posts in this 30-page thread, none of which shift the argument or express any ideology.
Perhaps you meant to respond to someone else?

 

[johndiver999]

Freaks who say that you need helium for 30m/100ft dive are literally the same freaks who want to dive to 60m/200ft on air, just on the other side of the spectrum

No, they are quite literally not the same............freeks.

 

[old frogman]

No, they are quite literally not the same............freeks.

Nothing wrong with diving on helium at 30 metres if that is what is required to make you safe at that depth.

Conversely if you can function at 200 feet on air despite some narcosis, that is fine.

Horses for courses.

 

[old frogman]

Presentation on the Uluburun shipwreck on Youtube. Dr Cemal Pulak briefly explains the diving procedure at beginning of presentation.

The Ships that Changed History Lecture 2 Cemal Pulak …

 

[old frogman]

I've made four posts in this 30-page thread, none of which shift the argument or express any ideology.
Perhaps you meant to respond to someone else?

Apologies. I misinterpreted your statement.

 

[johndiver999]

Nothing wrong with diving on helium at 30 metres if that is what is required to make you safe at that depth.

Conversely if you can function at 200 feet on air despite some narcosis, that is fine.

Horses for courses.

I agree. The people who actually dive deep on air (my definition might be 160 ft +) are a self selecting group.

The divers who feel significant narcosis, feel like they are too compromised aerobically or possibly ones which have not previously demonstrated an adaption to functioning while impaired with recreational drugs are probably NOT going to be doing it . But It doesn't surprise me that 22,000 deep air dives could be completed without a fatal accident by a select group of organized people.

And what the heck does having a chamber on site matter when you are trying to discrene the safety differences between air and helium? Do you have a chamber on site for all recreational/tech dives with trimix? I just don't follow some of this?

 

[Kay Dee]

.
Do you have a chamber on site for those dives deeper than 100ft?

As a matter of fact yes we did, much all of the time in Asian waters anyway. Next.

Edit. Saw it used a couple of times (and know of others)..............overwhelmingly by divers who had been on gas or CCR. Just sayin'.

 

[Kay Dee]

Often the only noticeable difference between educated perception and foolhardy rule-breaking is whether one dies or not. Since not all such acts cause death, it is not a very useful distinction. Those who survive are quite noisy about it, those who don't are pretty quiet. So we hear a lot of noise.

There is a fine line between badass and dumbass." (Jimmy Chin)

 

[Kay Dee]

I agree. The people who actually dive deep on air (my definition might be 160 ft +) are a self selecting group.

The divers who feel significant narcosis, feel like they are too compromised aerobically or possibly ones which have not previously demonstrated an adaption to functioning while impaired with recreational drugs are probably NOT going to be doing it . But It doesn't surprise me that 22,000 deep air dives could be completed without a fatal accident by a select group of organized people.

And what the heck does having a chamber on site matter when you are trying to discrene the safety differences between air and helium? Do you have a chamber on site for all recreational/tech dives with trimix? I just don't follow some of this?

This!
Very perceptive.

Been meaning to say something along the same lines theme, but you took the words right outta my mouth.