Vertical Blue 2008

[efattah]

FRC training dive:

[ame=http://www.youtube.com/watch?v=YIVF0NHJGkc]YouTube - FRC Training Dive[/ame]

 

[sucinimad]

Feet First FRC no fins video:

YouTube - Feet First FRC Descent

Witchcraft, I say! Awesome videos and thank you for sharing them.

It looks like you start sinking rapidly straight from the top. Do you do anything for the initial thrust? It seems a bit more straining than the "conventional" method (arms up, pointed feet; perhaps requiring more efforts to remain vertical?). What are the advantages of feet first descent? Do you swim or pull yourself back up?

 

[jome]

Feet first FRC looks like a blast

One question - it looks like you ascended pretty fast and straight up - no deco profile? I remember reading before that you suspected having DCS hits from even FRC dives - no problems this time?

Envying that mouthfill...

 

[Phil C]

Eric,

Awesome (and gutsy) to be pushing these dives so deep.

I recall that when you were chasing the CWT WR you reported having a very high buildup of lactic in the legs making finning difficult on the ascent.

For me exhale dives seem to make the lactic build really quickly compared to an inhale dive. Has this been your experience? if so, how are you mitigating something that (based on my experience) would make the problem noted before much worse.

 

[efattah]

Feet first FRC looks like a blast

One question - it looks like you ascended pretty fast and straight up - no deco profile? I remember reading before that you suspected having DCS hits from even FRC dives - no problems this time?

Envying that mouthfill...

I used to believe that my DCS risk was low after just one dive (with a fast ascent). However, this was false. Ascending at up to 1.5m/s, I actually got some mild DCS after the 62m dive. After the 67m dive I did 100% O2 at 3.5m for 3 minutes and had no symptoms. So yes, I am violating the deco 'rule' on these deep dives, but it seems OK as long as I go down soon after, even for apnea/air hangs at 6m.

 

[efattah]

I recall that when you were chasing the CWT WR you reported having a very high buildup of lactic in the legs making finning difficult on the ascent.
For me exhale dives seem to make the lactic build really quickly compared to an inhale dive. Has this been your experience? if so, how are you mitigating something that (based on my experience) would make the problem noted before much worse.

I changed my training to help my legs adapt to working without much blood flow. In 2001 I was doing primarily aerobic training with occasional intervals, and it wasn't good enough to prepare my legs for deep dives. In 2004 when I began apnea hiking up a local mountain, suddenly my legs seemed invincible at depth.

 

[rafacuatic]

Which is the right way(time and deep) to breath O2 after deep dives to avoid DCS.?
Rafa

 

[rogam44]

Great vids, thanks for sharing. Definitely I have to try it someday but first I must master my epiglottis/soft palate. :martial
What was the depth for CNF dive?

Jiri B

 

[efattah]

What was the depth for CNF dive?
Jiri B

We were just testing out the method, I think max was 20m.

 

[harbour seal]

What's the deepest unofficial FRC CWT dive? Murat I presume?

great thread, great competition, excellent updates/articles.
just catching up on some db reading and remembered murat's post reporting his "exhale" pb to be 72m CNF (circa feb 2005) --- anyone currently in contact with him might inquire if this remains his pb to date. find the post here:

http://forums.deeperblue.com/freedi...s/58351-exhale-frc-adaptation.html#post517544

cheers,
sean
vancouver, canada