100m air dive & workup, PG

[AfterDark]

DCS doesn't necessarily equate with death. Viagra's an amazing thing... I'd rather have physical use of my lower body extremities into old age. A spinal bend could put a definite cramp upon me eventually becoming the naughty old man that is my goal. ha ha

Andy have you read Setting the Hook? Peter is alone in zero vis in the andrea doria 240fsw on air, narc'd, found his way out on his own. Went back several times and did other deep dives on air. Lucky? I'd say so, but not just luck

 

[Tortuga68]

There's something to see on every dive I do, unless we accidentally miss the site (happens sometimes with the unpredictable currents in Puerto Galera).

84m and 72m were both on Verde Island pinnacle, lots if fish & coral & things to see all the way down & up. We met up with the rec divers from our same banca around 21m & followed them around while we finished our deco.

65 & 55 are Secret Reef & Sweet Lips Cave/Marco's Cave - both blue water ascents/descents but with nice things to see and do between about 30m and the target depth. 55 can also be Abyss (deep Fishbowl) which you can come up into Canyons/Hole In The Wall if conditions are right, in which case you have coral & fish to as shallow as 5m

You can google the site names if you like

 

[timmy2tanks]

You will always get away with it...... until you don't. Diving to 100m on air is 2.31 partial pressure. Russian Roulette.

 

[AfterDark]

You will always get away with it...... until you don't. Diving to 100m on air is 2.31 partial pressure. Russian Roulette.

That's not uncommon in some fields. Sport diving PP0 limits (rec or tech) are not the be all and end all.

More divers have died on the Andrea Doria using CCR and mixed gas then died using air. Gimbel followed the bubbles down the day after she sunk in 1956. Sport divers used air on the Doria until the late 1990's. It ain't Russian Roulette.

 

[DevonDiver]

Andy have you read Setting the Hook? Peter is alone in zero vis in the andrea doria 240fsw on air, narc'd, found his way out on his own. Went back several times and did other deep dives on air. Lucky? I'd say so, but not just luck

Nope, I didn't get chance to read that yet. Given my location, I'm pretty stuck with eBooks at the moment for anything diving related (so if you've got any juicy epubs or mobi floating around.... LOL)

My earlier comment wasn't meant as a dig against deep air diving, merely highlighting that a gung-ho attitude to DCS illustrated little perception of the potential end-results.

I've done quite a few deep air dives myself, in the 70-80m range with 20+ minute bottom times. I choose not to do them anymore if I have a choice. I had offered to do one (~60m) earlier this year as a rapid body recovery - that would have been a serious affair, given the goal and narcosis. Sadly, the dive wasn't needed because the (aircraft) wreckage containing the body was never located.

 

[AfterDark]

Nope, I didn't get chance to read that yet. Given my location, I'm pretty stuck with eBooks at the moment for anything diving related (so if you've got any juicy epubs or mobi floating around.... LOL)

My earlier comment wasn't meant as a dig against deep air diving, merely highlighting that a gung-ho attitude to DCS illustrated little perception of the potential end-results.

I've done quite a few deep air dives myself, in the 70-80m range with 20+ minute bottom times. I choose not to do them anymore if I have a choice. I had offered to do one (~60m) earlier this year as a rapid body recovery - that would have been a serious affair, given the goal and narcosis. Sadly, the dive wasn't needed because the (aircraft) wreckage containing the body was never located.

I'm sorry my point wasn't made clear. The point was that Peter didn't expect to get lost inside the Andea Doria in zero vis, but even faced with the unexpected while narced @240fsw he was able to figure out the egress, without a line. Your blanket statement about being narced and faced with something out of the norm isn't always the case. I didn't mean to imply you were disin' deep air diving.

 

[Paulmal]

I was reading this thread and had a couple of questions,
1) how did you handle the ppo2 of 2.0. The navy's recommendation for ppo2 that high are max 1-2 min if memory serves me.
2) is He that expensive, to do a five to 100m I would use 15/55 and I could fill my double LP 95's (cave filled) would. Cost $150 not to bad for a big dive.
3) I personally disagree with deep air dives as I prefer to spend more time on the bottum but I also disagree with the guys that say you need He below 100 ft. I think 30/30 that some people use for recreational depths is a bit excessive but to each their own.

Congrats on accomplishing your goal, safe diving.

Paulmal

 

[Tortuga68]

Andy I believe Setting The Hook is available as an eBook. I went for the hardcopy version

1) how did you handle the ppo2 of 2.0.

2) is He that expensive

1. I'm not sure what you mean by handle it.. I breathed, swam around a little & came up. Max PPO2 was about 2.3. I recall someone posted the Navy tables & exceptional exposure limits earlier

2. HE is more expensive in different parts of the world, but cost wasn't a factor in this dive

 

[wedivebc]

I was wondering, if after experiencing 100m on air do you feel less impaired at say 60m than you did when you began doing these deep air dives?
Do you feel you have built up a tolerance to deep air or just learned to deal with the impairment?

 

[Centrals]

There's something to see on every dive I do, unless we accidentally miss the site (happens sometimes with the unpredictable currents in Puerto Galera).
84m and 72m were both on Verde Island pinnacle, lots if fish & coral & things to see all the way down & up. We met up with the rec divers from our same banca around 21m & followed them around while we finished our deco.
65 & 55 are Secret Reef & Sweet Lips Cave/Marco's Cave - both blue water ascents/descents but with nice things to see and do between about 30m and the target depth. 55 can also be Abyss (deep Fishbowl) which you can come up into Canyons/Hole In The Wall if conditions are right, in which case you have coral & fish to as shallow as 5m
You can google the site names if you like

The best dive sites at PG are those below 30m!! Full of life and great viz.
Giant Grouper at Horse's Head.
A school of yellow strip snappers at Fish Bowl.
A school of sweet lips inside the swim through at Sweet Lips Corner.
And if you are very lucky then Hammerhead at Deep Fish Bowl and Verde Drop Off.
There are plenty more if you can find a knowledgeable guide and there are plenty of them in PG.
I do not see any fuss on deep air dive.