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Ted
You completely misunderstood JT's e-mail. Please refrain from commenting on
things you do not understand.
First off, the reason for the unplugged drysuit is not to do flooded/failed
drysuit drills, it is done to prevent people from using the drysuit for
buoyancy and therefore creating dynamic instability. People often use the
drysuit for buoyancy, so to teach students not to use the drysuit for
buoyancy and to get them in the habit of using the bcd for buoyancy, I have
them unplug the drysuit during the class. It has nothing to do with failed
drysuit inflator. We do the training in 10 ft - 15ft of water, this
particular lake was only 6ft deep (p.s. most of the places I teach the water
is between 39 - 50 degrees), so the drysuit is not squeezed sufficiently
enough to cause students to not be able to reach valves. I do allow them
later in the training, the second day of training, to add a little gas to
the suit as generally we are working a little deeper. (15ft - 20ft)
The reason Cobb walk away from "diving" (not the class) is he realized he
did not have the skills to do the diving he was doing and wants to do in the
future and the class pointed that out to him. His family has privately
thanked me for this, as he was endangering his life with the lack of skills
he had. So please refrain again from implying Jim walked away from the class
because it was bullshit. Jim appreciated the class tremendously and thanked
us, up one side - down the other, for illustrating to him what his was
missing and what no other instructor would do.
Andrew
-----Original Message-----
From: Ted Green [mailto:scuba@md*.co*]
Sent: Tuesday, May 07, 2002 5:37 AM
To: techdiver@aquanaut.com
Cc: Capt JT
Subject: Dir fundamentals - What's the point of this drill?
From: Capt JT <captjt@mi*.co*>
Subject: Dir fundamentals instructor beats up student for DIW part 2
> BTW, I forgot to mention we were not allowed to hook up our DS
> inflators, the squeeze made reaching your valves much harder.
Maybe I'm missing something here. The only time I have had the
"shrink wrap effect" was on a descent when the dry suit inflator
hose came off. No problem, reconnect drysuit inflator hose or
inflate wing and return to surface. If you have a regulator or power
inflator failure which prevents buoyancy control, ditch weight and
return to the surface. "Shrink wrap effect" is a shallow water
problem where the greatest volume change occurs, usually the first
33'. If your not putting gas in your drysuit until you hit the bottom,
you have a skill problem, or you don't understand how to operate a
dry suit properly, or you just like the sensation of your testicles
being squeezed. To me, valve shut down drills while shrink wrapped
would be pointless.
JT maybe you should take Andrew to one of the 40 degree quarries
let him enter the water with his drysuit zipper open and let him
demonstrate gas shut down drills, buoyancy skills, and deco stops
with a flooded drysuit. Having to complete a dive with a flooded
drysuit in cold water is probably a thousand times more likely than
than his exercise.
While I'm not a member of the Jim Cobb fan club, I tip my hat and
congratulate him as being the only one willing to say, "this is
bullshit!" and walk away.
Ted
Ted Green
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Dive Charter Boat: O.C. Diver
Sunset Marina in Ocean City, Maryland
http://www.ocdiver.com
410.742.1992 800.637.2102
Fax 410.749.9410
"Diving the Atlantic coast from Cape May NJ to Cape Charles VA."
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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