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Mark:

We use a small grapple and the chain is about 6 or 8 ft.  I've never weighed
it but I would guess it is about 10 or 15 lbs. total weight.  I will
typically use a scooter, but you can inflate your wings to offset the
weight.

If you drop the grapple and chain you simply dump air.  Of course you will
be a Polaris missle if you don't -  but as soon as you release the weight of
the grapple you begin to dump air.  Done properly, you shouldn't lose or
gain any depth to speak of.  Obviously, you don't assign this chore to a
"newbie" but it is a simple procedure.

Regards.

Joe



----- Original Message -----
From: "Mark&Laura" <marklora@om*.ne*.om*>
To: <techdiver@aquanaut.com>
Sent: Saturday, July 27, 2002 11:30 AM
Subject: Re: Nova Tech Dive Report 7/21/02 & Lessons Learned


>
> > As soon as the hook (or chain or whatever) is freed the man standing by
> > ascends ahead of the man swimming or scootering the hook and goes about
> 100'
> > off the bottom (or whatever depth is appropriate for the given dive) and
> > ties a loop in the line.  The hook is then fowled in it.
>
> Joe,
>
> The procedure you describe sounds sweet - I'll file it away for future
use.
> However, couple of questions.  How
> much does the grapple and chain (if used) weigh?  On the descent, and
> particularly when ascending up to the loop where the grapple is to be
> fouled, the team member carrying the grapple will be using his own BC or
> wing to counteract the weight of the grapple, yes/no?  Or have I
> misunderstood?
> If yes, then for argument sake, lets say he drops it.  Is the immediate
> excess buoyancy
> going to be a problem?
>
> Regards,
>
> Mark.
>
>
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