Home Tournaments Calendar Weather Merchandise Sponsors

Go Back   Spearboard.com - The World's Largest Spearfishing Diving Boating Social Media Forum > United States Geographical Locations > California Spearfishing

California Spearfishing Talk here about spearfishing on California's Pacific Coast, and post those reports and photos!

Reply
 
Thread Tools Rate Thread Display Modes
Old 10-15-2010, 03:15 PM   #16
rtdean
Saltybones1
 
rtdean's Avatar
 
Join Date: Aug 2009
Location: Merritt Island, Fl
Posts: 593
Send a message via AIM to rtdean
Re: a question about swb

The last time I was in freediving in California, I shot a SWB, but got WSB on the way up. . .glad I had a diving buddy. He brought me to the surface, safe and sound and the first thing he said was. . ."Man. . .that's got to be the BIGGEST SWB I've ever seen shot from these waters". LOL!!!!!! This thread is funny as CRAP!!!!

Rick
__________________

www.saltybones.com - Hardcore Diving & Fishing Apparel
rtdean is offline   Reply With Quote
Old 10-15-2010, 03:39 PM   #17
divingdesigns
Brian
 
divingdesigns's Avatar
 
Join Date: Oct 2008
Location: Napa CA
Posts: 612
Re: a question about swb

Well I am glad this is all I have messed up today, but the day is not over yet.
__________________
Join a Dive Club Today!

www.Redwoodempiredivers.org
A family friendly Skin and SCUBA dive club out of Santa Rosa CA

www.Montereybaytritons.com
A freedive only dive club thats meets in Monterey CA
divingdesigns is offline   Reply With Quote
Old 10-15-2010, 03:42 PM   #18
swimmingbird
Penguin
 
swimmingbird's Avatar
 
Join Date: Nov 2007
Posts: 117
Send a message via AIM to swimmingbird
Re: a question about swb

On a more serious note with the thread, depth has little to do with it. The biggest pressure change happens within the first 5 feet underwater. For this reason most blackouts occur within 10 ft of surfacing or 30 SEC AFTER THE DIVER HAS ALREADY SURFACED.

There are some great videos out there of blackouts where people have already surfaced and slip back under.
swimmingbird is offline   Reply With Quote
Old 10-15-2010, 03:53 PM   #19
rtdean
Saltybones1
 
rtdean's Avatar
 
Join Date: Aug 2009
Location: Merritt Island, Fl
Posts: 593
Send a message via AIM to rtdean
Re: a question about swb

Quote:
Originally Posted by divingdesigns View Post
Well I am glad this is all I have messed up today, but the day is not over yet.
Brian, that reminds me of the guy who was praying. . ."Lord, I've not yelled at anybody today. . .not been disrespectful to anyone today. . .in fact, I've not done anything wrong today, at all. . . . . . . . . but in about 5 minutes, my alarm clock is going to go off and i'll have to get up. . ."

BTW, does anyone know if there is a size limit on SWB's???

OK. . .I'm done (for now). Thanks for being a good sport.

Rick
__________________

www.saltybones.com - Hardcore Diving & Fishing Apparel
rtdean is offline   Reply With Quote
Old 10-15-2010, 03:57 PM   #20
ApneaAddict
Registered User
 
ApneaAddict's Avatar
 
Join Date: Oct 2006
Posts: 4,647
Re: a question about swb

Quote:
Originally Posted by swimmingbird View Post
There are some great videos out there of blackouts where people have already surfaced and slip back under.
True. Check out this video by Jake (blaiz). He's an excellent and experienced diver and said he didn't feel as if he was "pushing it" when he came up from this dive. Never dive alone.

http://spearboard.com/showthread.php...hlight=uku+swb
ApneaAddict is offline   Reply With Quote
Old 10-15-2010, 04:02 PM   #21
Zenon
Registered User
 
Zenon's Avatar
 
Join Date: Aug 2009
Location: Leucadia
Posts: 1,268
Re: a question about swb

Thanks for the feedback. I think the takehome is to never dive for WSB without a buddy.
Zenon is offline   Reply With Quote
Old 10-15-2010, 04:12 PM   #22
rtdean
Saltybones1
 
rtdean's Avatar
 
Join Date: Aug 2009
Location: Merritt Island, Fl
Posts: 593
Send a message via AIM to rtdean
Re: a question about swb

Quote:
Originally Posted by swimmingbird View Post
On a more serious note with the thread, depth has little to do with it. The biggest pressure change happens within the first 5 feet underwater. For this reason most blackouts occur within 10 ft of surfacing or 30 SEC AFTER THE DIVER HAS ALREADY SURFACED.

There are some great videos out there of blackouts where people have already surfaced and slip back under.
Rule of 9's: (on ascent from depth)

90% of blackouts occur AT THE SURFACE, within the first 30 seconds after surfacing. (And some of these occur AS THE DIVER IS GIVING THE OK SIGNAL!!!!) As you say, many slip back below the surface, after their dive buddy thinks they are fine!!!! My personal thought is that even when diving with a buddy, when the "safety" buddy sees they are going to make it to the surface. . .down they go, to spear some fish, at the most CRITICAL time in their surfacing buddy's recovery!

9% occur, upon ascent, from 15 feet to the surface.

Only .9 % occur below 15 feet.

Please take a freediving course, if you freedive. There are WAY, WAY too many people dying from blackouts. . .it need not be this way!

Dive safe!

Rick
__________________

www.saltybones.com - Hardcore Diving & Fishing Apparel
rtdean is offline   Reply With Quote
Old 10-15-2010, 04:20 PM   #23
rtdean
Saltybones1
 
rtdean's Avatar
 
Join Date: Aug 2009
Location: Merritt Island, Fl
Posts: 593
Send a message via AIM to rtdean
Re: a question about swb

As a followup. . .being in the same ocean on the same day with a buddy, is not the same as diving with a safety-trained rescue buddy, who knows exactly what to look for and how to rescue you, if you do have a LMC or blackout. . . and vice versa. Very important.

Rick
__________________

www.saltybones.com - Hardcore Diving & Fishing Apparel
rtdean is offline   Reply With Quote
Old 10-15-2010, 04:21 PM   #24
Trimbandit
discord and rhyme
 
Trimbandit's Avatar
 
Join Date: May 2007
Location: San Mateo
Posts: 2,879
Re: a question about swb

Quote:
Originally Posted by swimmingbird View Post
On a more serious note with the thread, depth has little to do with it.
Change in depth has everything to do with it. I have never heard of a swb from someone diving to 5 feet.
Quote:
Originally Posted by swimmingbird View Post
The biggest pressure change happens within the first 5 feet underwater.
Actually, pressure increases linearly at the rate of 1 ATM every 33 feet.
surface=1ATM
33ft=2ATM
66ft=3ATM
99ft=4ATM
If you are refering to the compression of gasses, then yes compression is greatest closer to the surface.
0ft=100% lung volume
33 ft=50%
66ft=33%
99ft=25%
For this reason, most swb occurs between during the last ATM of ascension or at the surface
__________________
Timid men prefer the calm of despotism to the tempestuous sea of liberty.
Trimbandit is offline   Reply With Quote
Old 10-15-2010, 04:34 PM   #25
rtdean
Saltybones1
 
rtdean's Avatar
 
Join Date: Aug 2009
Location: Merritt Island, Fl
Posts: 593
Send a message via AIM to rtdean
Re: a question about swb

As you descend, the Partial Pressure of your O2 is relatively higher at depth, because of your lung compression, (though it is actually constantly decreasing with time). When you ascend, your lungs expand but your % of O2 is decreasing, proportionally (PPO). When you get to the surface, your lungs are at full expansion, but your relative % of O2 is extremely low. When it hits around 10%, the LIGHTS GO OUT!!! Doesn't matter too much about how you feel, contractions, etc. etc. This is why diving with a trained buddy is important. It's YOUR life. . .think about it.

Rick
__________________

www.saltybones.com - Hardcore Diving & Fishing Apparel
rtdean is offline   Reply With Quote
Old 10-15-2010, 04:41 PM   #26
Zenon
Registered User
 
Zenon's Avatar
 
Join Date: Aug 2009
Location: Leucadia
Posts: 1,268
Re: a question about swb

Lmc?
Zenon is offline   Reply With Quote
Old 10-15-2010, 04:43 PM   #27
rtdean
Saltybones1
 
rtdean's Avatar
 
Join Date: Aug 2009
Location: Merritt Island, Fl
Posts: 593
Send a message via AIM to rtdean
Re: a question about swb

How you breathe, upon surfacing is also very important to avoid "pulmonary dump", which can be another cause of blackout. Actually, if my memory serves me correctly, there are about 6 kinds of blackout. . . maybe more. . "White out" would be overbreathing before the dive, resulting in blackout. There are blackouts which would come from, say, swimming distances in a shallow pool, etc. These are not really SWB (or WSB) because they did not result from ascending from depth. Lots to learn. . .take a course!

Rick
__________________

www.saltybones.com - Hardcore Diving & Fishing Apparel
rtdean is offline   Reply With Quote
Old 10-15-2010, 04:47 PM   #28
rtdean
Saltybones1
 
rtdean's Avatar
 
Join Date: Aug 2009
Location: Merritt Island, Fl
Posts: 593
Send a message via AIM to rtdean
Re: a question about swb

Quote:
Originally Posted by Official WG View Post
Lmc?
LMC is a "Loss of Motor Control", probably a better term than "Samba". You are not completely blacked out, but lose control of your motor skills. Usually temporary, and it's most important to guard the person's airway (get their mouth and nose out of the water) and they will recover on their own after a few seconds, usually.

Rick
__________________

www.saltybones.com - Hardcore Diving & Fishing Apparel
rtdean is offline   Reply With Quote
Old 10-15-2010, 04:56 PM   #29
rtdean
Saltybones1
 
rtdean's Avatar
 
Join Date: Aug 2009
Location: Merritt Island, Fl
Posts: 593
Send a message via AIM to rtdean
Re: a question about swb

I think this is a really good thread! If it can save ONE person's life, it was worth it.

BTW, if you would like to take an excellent course, Performance Freediving Int'l (Kirk Krack and team-my instructors) or FII Freediving Instructors Int'l (Martin Stepanek) are both tremendous, from what I hear. Just Google them for contact info.

Rick
__________________

www.saltybones.com - Hardcore Diving & Fishing Apparel
rtdean is offline   Reply With Quote
Old 10-15-2010, 05:13 PM   #30
Trimbandit
discord and rhyme
 
Trimbandit's Avatar
 
Join Date: May 2007
Location: San Mateo
Posts: 2,879
Re: a question about swb

Quote:
Originally Posted by Official WG View Post
Lmc?
L.B.C.
__________________
Timid men prefer the calm of despotism to the tempestuous sea of liberty.
Trimbandit is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 03:47 AM.


The World's Largest Spearfishing Diving Social Media Forum Powered by vBulletin® Version 3.8.1
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2002 - 2014 Spearboard.com