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This conversation could only take place in the techdiver! Scott if you are not a Commercial Diver stay away from FFM unless you are in water treating someone with O2.Comms are not really necessary and gas blocks are the reason why hundreds of neophytes end up in body bags. Manos billy wrote: > At 02:25 PM 31/10/2002, EANX@ao*.co* wrote: > >> Scott >> >> The use of FFM below 300 feet is a common occurrence for most >> commercial divers and technical divers who need the use of U/W >> communications to work or direct projects. They are also used >> commonly in very cold water just to help protect the face. >> >> Yes FFM use more gas, but typically just because of talking. I have >> noticed that if you do not talk they really do not use much more gas >> than a standard regulator. >> >> FFM can be used very safely with a single switch gas block where each >> gas has to be manually snapped in. This prevents accidental gas >> switching at depth and is really no different than switching a >> regulator. All stages only have to carry one extra quick connect hose >> along with there second stage and 6 inch pressure gauge. Of course a >> small scubapro mask has to be carried in the case of a primary >> regulator failure. >> >> I would assume you do not need to talk to anyone underwater or dive >> in extremely cold water so a FFM is not for you. As for me, directing >> my photography light holders or video production divers is a thousand >> times easier and waste much less time if I can communicate directly. > > > > Curt, I find a storyboard, a briefing, and hand-signals work > just fine for the lighting guys now everyone has enough > helium in the mix. Before that it was like herding a bunch > of drunks across a freeway. > > The only person with whom I need to communicate with any > degree of precision beyond hand signals is my cameraman, and > again, the helium, the storyboard, and the briefing cover > 70% of the work, hand signals cover 20%, grabbing his tanks > and turning or swimming him covers 5% and the remaining 5% > is covered with the aid of vgorous blows to the back of the > head and snappy, to-the-point slate messages such as "Shoot > wide or die." etc. > >> Plus my face gets bad freezer burn when I am diving in 36 degree Lake >> Superior water. > > > I went in 10 degree C water once but got out shortly after. > Do the Swedish Brothers use full face masks? > > yours > > billyw > director bdi productions > > > >> Curt Bowen >> Publisher Advanced Diver Magazine >> >> >> >> >> In a message dated Thu, 31 Oct 2002 00:47:32 Greenwich Mean Time, >> Scott Hunsucker <shunsucker@co*.ne*> writes: >> >> > >> > Has anyone actually taken the time to look at the new >> > products on the dive-rite site? Can anyone actually tell me why >> > they have something as stupid as plastic buckles on spring straps? >> > The point of spring straps is to eliminate the failure from the strap, >> > and plastic buckles increase the chance of failure. >> > >> > Why does the world need swiveling double-enders? >> > >> > Is it really a good idea to have a FFM on 300' dives. >> > They claim the performance of their new FFM and reg gets better as >> > you get deeper. You guys do realize that FFM use more gas and >> > eliminate the ability to switch regs? Oh I forgot, the mixing >> > manifold to solve what should be a non-problem! >> > >> > Why? >> > >> > Scott >> >> >> >> _______________________________________________ >> Cavers mailing list >> Cavers@ca*.co* >> http://www.cavers.com/mailman/listinfo/cavers > > > -- > 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 `techdiver-request@aquanaut.com'.
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