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Date: Mon, 19 Jan 1998 17:19:24 -0500
From: Jeff Bentley <jbentley@cr*.co*>
To: "Paltz, Art" <Art.Paltz@R2*.CO*>
CC: techdiver <techdiver@aquanaut.com>, cavers@ww*.ge*.co*
Subject: Re: Added info re three missing in WPB
The solution is Rule #1.
Not cutting bondage bungee while you are fried.

43 deg F water.... F that,
Jeff


Paltz, Art wrote:

> I've got a question/suggestion.  I don't dive with OMS wings but a
> friend does.  Since reading the list I've thought about "what/if" he had
> a problem.  Although I've never tested it, because he'd get pissed, I've
> always thought if he had a lift problem I'd just cut the bungee thinking
> it would allow more air to effortlessly enter the wings.  If this works
> then why didn't someone with loads of experience cut the cord?  I'd
> think this would be the easiest way to "solve" the bondage problem if
> only in an emergency situation.  Now if I were narc'd on nitrogen then
> maybe I wouldn't think to cut the bungee.  If this solution won't work
> then sorry and please explain why.  I've only seen these wings and never
> used them.
>
> Thanks way in advance and hope it's helpful,
> Safe diving,
> Art.
> art.paltz@r2*.co*
> Last Dive 1/10/98, Klondike Rocks (lobster dive),
>         NJ 75ft/65 min bottom time, 43 degrees F, 40% bottom mix.
>
>         -----Original Message-----
>         From:   G. Irvine [SMTP:gmirvine@sa*.ne*]
>         Sent:   Monday, January 19, 1998 9:25 AM
>         To:     w wittman
>         Cc:     techdiver; cavers@ww*.ge*.co*
>         Subject:        Re: Added info re three missing in WPB
>
>         Wings with bungees are ridiculous- they will exert pressure
> against the
>         inflation, and cause the opv to dump well below what the ambient
>         pressure would. They are obviously going to present a massively
>         dangerous static lung load if you try to inflate them manually.
>
>          If you tie them too tight to start with, which many of these
> dopes do
>         because they think it is less "drag", they will not give much
> lift.
>         There have been other acidents associated with this, so I
> believe they
>         are now shipped out without the bungeess tied, so this is done
> at the
>         dive shop, or by the end user. Hmmmmmmmmmmmmmmmm...........
>
>          The drag issue is realy FAS - the bungied surface causes
> massive vortex
>         shedding and increases drag, not to mention the entangling
> capabilities
>         of all of the bungee and other dangling stupidity associtated
> with these
>         wet dream wings. If you have to add volume to get lift, it will
> be the
>         same volume on any wing, so you want the wing whos shape most
> closely
>         conforms to the gear, as does the Dive Rite wing which lays
> tight to the
>         tank and wraps up around it, with smooth surfaces, already in
> the slip
>         stream.
>
>          There is also the problem of two inflators on some of these, a
> real
>         boondoggle . You can immagine the degree of clustery that get
> set up
>         with that arrangement.
>
>          The fact is that if you dive the right gear to start with, none
> of this
>         tekkie stupidity is necesasry. If you dive steel in the ocean,
> use a
>         drysuit. If not, use aluminum tanks. Real simple, real
> efficient.
>
>          If you dive in the ocean, use aluminium deco bottles. Real
> simple. We
>         found this out a long time ago, we execute these dives with no
> problem,
>         and you can ask Capt Jim Mimms, he has watched this for years,
> as have
>         his predecessors and succesors in the dive boat business. My
> guys cause
>         no problems other than hammering the strokes on the boat.
>
>         w wittman wrote:
>         >
>         >
>         > George, no doubt you have done before...but could you
> elaborate on "bondage
>         > wings" and your objection to them?
>         > thanks
>         >
>         >
>         --
>         Send mail for the `techdiver' mailing list to
> `techdiver@aquanaut.com'.
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--
Jeff Bentley     jbentley@cr*.co*    http://www.crl.com/~jbentley


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