John, have a nice day.

John McMillan. wrote:
> 
> Maybe Parker should have been weighted accordingly. Maybe then he may not
> have blacked out because of the huge task load of maintaining his buoyancy
> while in a tight and highly stressed situation. He certainly would not have
> blown up to the ceiling finishing the job.
> I guess if you "NEED" to take your tanks off to negotiate a restriction and
> there is no other way out you are just going to lie there and die?
> I believe you?
> 
> Hoo Roo
> Johnny Mack
> Down Under.
> 
> ----- Original Message -----
> From: <kirvine@sa*.ne*>
> To: John McMillan. <mcmillan_knit@on*.ne*.au*>
> Cc: Shimell, David (shimell) <shimell@se*.co*>; Gliviak, Jozef
> <Jozef.Gliviak@co*.co*>; <techdiver@aquanaut.com>
> Sent: Friday, December 17, 1999 12:58 PM
> Subject: Re: DIR question - weight system
> 
> > You die like Parker did. We don't take our tanks off. Actaully, Parker
> > took his off and dragged them next to him to hold him down, and then
> > blacked out and blew to the ceiling when he cleared the restriction.
> >
> > I have found you can not move forward very well agsinst a ceiling with
> > the tanks off in a drysuit unless there is plenty of room to push
> > yourself down, which means you do not need to take the tanks off. We
> > just do not do it.
> >
> > To weight ourselves with 22 additional pounds required to offset the
> > drysuit with C-4 would mean wings blown up like a Zodiac, and drag that
> > would be impossible. We rig for speed. Also, weightbelts on a drysuit ,
> > unless harness rigged with suspenders, are a nightmare, and again, we
> > rig for the real risks, not the phantom ghoasts in the closet. I make my
> > bet before I get in the water, and did so that day, and will continue to
> > bet that way or not dive.
> >
> > This is like the "how do you do your deco if a shark bites of the hand
> > with the bottom timer?" question. The answer is the same - "you don't".
> >
> > John McMillan. wrote:
> > >
> > > Hello guys.
> > >
> > > I have a pertinent question. What happens to your personal buoyancy if
> and
> > > when you have to get out of your gear to negotiate a collapsed
> restriction?
> > > How are you going to maintain buoyancy control.
> > >
> > > Hoo Roo
> > > Johnny Mack
> > > Down under
> > >
> > > ----- Original Message -----
> > > From: Shimell, David (shimell) <shimell@se*.co*>
> > > To: Gliviak, Jozef <Jozef.Gliviak@co*.co*>; <techdiver@aquanaut.com>
> > > Sent: Thursday, December 16, 1999 9:36 PM
> > > Subject: RE: DIR question - weight system
> > >
> > > > Jozef
> > > >
> > > > Try some or all of the following:
> > > >
> > > > * Use a non compressible dry suit so that you don't need to carry the
> > > > weight in the first place.
> > > > * Carry a canister torch which can be used as a ditcheable weight
> > > > (3kg).
> > > > * Loosen your harness straps and tighten the crotch strap.  This will
> > > > move your centre of gravity down.
> > > > * Make an H-weight.
> > > >
> > > > The H-weight is two V-weights bolted together front and back of the
> > > twinset.
> > > > My H-weight of 5.5 Kg is only about 100 mm high and is bolted close to
> the
> > > > lower band, hence my H-weight pushes my centre of gravity lower than
> would
> > > be
> > > > the case if I used a V-weight.  BTW, I only use my H-weight for
> > > no-canister
> > > > torch twinset diving in salt. I always take in my canister torch for
> > > proper
> > > > diving, so don't use the H-weight these days.
> > > >
> > > > David Shimell
> > > > Email: shimell@se*.co* <mailto:shimell@se*.co*>
> > > > Project Manager, IBM NUMA-Q, Sequent Computer Systems Limited,
> > > > Weybridge Business Park, Addlestone Road, Weybridge, Surrey, KT15 2UF,
> UK
> > > > registered in England and Wales under company number: 1999363,
> registered
> > > > office as above
> > > >
> > > > -----Original Message-----
> > > > From: Gliviak, Jozef [SMTP:Jozef.Gliviak@co*.co*]
> > > > Sent: Wednesday, December 15, 1999 3:58 PM
> > > > To: techdiver@aquanaut.com
> > > > Subject: DIR question - weight system
> > > >
> > > > As far as I could find out - according DIR there is no weight belt or
> > > > integrated weight system used. Only heavy backplate and weight between
> > > > tanks. I'm sure this works in warm water, but I had a bit of trouble
> > > testing
> > > > it in 4degrees celsius. With very heavy underwear to keep me warm I
> need
> > > > appx 8-9 Kg additional weight. When I attach it between tanks the
> centre
> > > of
> > > > weight is shifted upwards. This becomes a problem when looking to
> sides.
> > > The
> > > > centre of weight is too high and it tries to turn me. This was quite
> > > > uncomfortable feeling.
> > > > I would like to know how you solve this. As far as I know there are
> few
> > > cold
> > > > water divers here on the list.
> > > >
> > > > Best reagards
> > > >
> > > > Jozef Gliviak
> > > > Slovakia
> > > > --
> > > > Send mail for the `techdiver' mailing list to
> `techdiver@aquanaut.com'.
> > > > Send subscribe/unsubscribe requests to
> `techdiver-request@aquanaut.com'.
> > > > --
> > > > Send mail for the `techdiver' mailing list to
> `techdiver@aquanaut.com'.
> > > > Send subscribe/unsubscribe requests to
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> > > >
> > >
> > > --
> > > Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'.
> > > Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
> >
> >
> >


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