Safety stop : to do or not when panicked?

[houlejon]

The total dive time was 12 minutes... I just downloaded the info from my computer and my average air consumption is 1.567 cuFT per minute...

---------- Post added August 23rd, 2015 at 08:20 PM ----------

Out of curiosity, did you do a dive plan?

Before splashing did you have any idea what your NDL was?

Here what was our dive plan (if we can call it this way )

1) Go down the line.
2) Clip a reel to the line
3) Make a quick circle of around 50 ft.
4) Go back to the line and start the ascent at 1500 psi

---------- Post added August 23rd, 2015 at 08:26 PM ----------

This is the most important sentence in the original post.

Thanks for posting this. It seems like you are (1) able to admit your mistakes, and (2) learn from them. Those two things are very important when becoming a safe diver!

I really appreciate your post. My state of mind is that I am willing to get the most from my mistake.

---------- Post added August 23rd, 2015 at 08:26 PM ----------

This is the most important sentence in the original post.<br>
<br>
Thanks for posting this. It seems like you are (1) able to admit your mistakes, and (2) learn from them. Those two things are very important when becoming a safe diver! <img src="http://www.scubaboard.com/forums/images/smilies/More Smiles/icosm14.gif" border="0" alt="" title="Wink" smilieid="1204" class="inlineimg">

<br>
<br>
I really appreciate your post. My state of mind is that I am willing to get the most from my mistake.

---------- Post added August 23rd, 2015 at 08:31 PM ----------

Can narcosis cause panic? As far as I remember, narcosis symptoms are at the opposite (feeling drunk, too relax..)

 

[KeithG]

When my buddy signaled for the ascent, I realized I had only 500 psi left... This is where anxiety started.

Thanks for posting!
To me it seems like a double failure occurred. It appears neither you NOR your buddy was monitoring YOUR gas supply.

So your buddy also made a mistake. Remember that your gas is your buddy's backup gas. They should have had the same interest in your gas supply as you do.

I regularly perform gas supply checks during every dive. I really don't care how much it annoys her when I ask every 5 minutes or so for a current pressure reading. We never have an issue. Have never been close. I want to keep it that way.

 

[houlejon]

I am stunned! Can't believe it... My computer tells me that I had 1000 psi when I started the ascent... I was at 500 psi at 65 feet...
This doesn't match my memory at all. I know I am going to look stupid but I do want to understand what hapened.

All the recommendations made in this thread are still very good and meaningfull. I am just wondering if narcosis could explain the panic and the difference in my perception and the reality...

 

[fisheater]

View attachment 215212View attachment 215213

I am stunned! Can't believe it... My computer tells me that I had 1000 psi when I started the ascent... I was at 500 psi at 65 feet...
This doesn't match my memory at all. I know I am going to look stupid but I do want to understand what hapened.

All the recommendations made in this thread are still very good and meaningfull. I am just wondering if narcosis could explain the panic and the difference in my perception and the reality...

Yes. It could.

Was your SAC rate on this dive in line with your previous dives' SAC rates?

 

[THRASH]

I by no means am qualified to really give advice on this. However, you stated that the water temp was 40 F. What kind of cold gear protection did you have. Maybe hypothermia played a role in some of the panic? Just a thought......

 

[houlejon]

I just checked my computer logbook and I usually have 0.5 to 0.8 cu FT per minute. this dive was at 1.56....

---------- Post added August 23rd, 2015 at 09:05 PM ----------

I was wearing at 4 mil compressed neoprene drysuit.

 

[fisheater]

I just checked my computer logbook and I usually have 0.5 to 0.8 cu FT per minute. this dive was at 1.56....

---------- Post added August 23rd, 2015 at 09:05 PM ----------

I was wearing at 4 mil compressed neoprene drysuit.

Then something unusual was going on, either with your physical condition or mental condition to cause you to use 2-3 times as much gas, even considering the depth. Know what it was?

 

[rongoodman]

I am just wondering if narcosis could explain the panic and the difference in my perception and the reality...

I'm sure of it. I know I've been narced, although not as badly, at 105' on the Radeau in Lake George in similar conditions, which is why I wouldn't go back there on Nitrox. CO2 build-up could have been a contributing factor too, as it's extremely narcotic.

 

[houlejon]

Then something unusual was going on, either with your physical condition or mental condition to cause you to use 2-3 times as much gas, even considering the depth. Know what it was?

To be honest I have no clue. I dont recall anything special happening... I going to have my regulator checked.

Envoyé de mon SM-G900W8 en utilisant Tapatalk

 

[fisheater]

To be honest I have no clue. I dont recall anything special happening... I going to have my regulator checked.

Envoyé de mon SM-G900W8 en utilisant Tapatalk

Unless it was free flowing, that gas was being inhaled. If you weren't working hard on that dive (fighting a current, e.g.), then it must be that you were not as mentally comfortable as you thought you were. It, too, could be related to narcosis.

That's something to consider when planning your next deep dive. Also, keep it in mind during your dive to check your breathing pattern.