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On Sunday, July 8, 2001, at 10:30 , Paul Braunbehrens wrote: > > > > Ed Street wrote: > >> The standards and >> equipment is so advanced that mistakes, when they happen, are almost >> always >> listed as 'pilot error'. > > > That's why you dive with a buddy. and, I suspect think you know this Paul, but I can beat my head on the brick wall that is Ed, today, I have some spare time :) that's why you dive OC, it is orders of magnitude easier (less probablility of pilot error) and even more orders of magnitude easier to spot when something goes wrong. I mean OC reg gives you gas and can fail by giving you too much, or too little. Both very easy to spot. On a RB both failures allow you to keep breathing but the gas may become toxic due to excess O2 or insufficient O2. Why take a highly complicated piece of equipment, with failure modes that are both insidious and rapidly fatal when you can take simple equipment which fails in an obvious manner allowing rapid recovery from said failure. This comes back to the question of when to use an RB, I think the answer is when you cannot use OC, as the wkpp have shown us you can do a lot on OC (thousands of feet penetration at 300ft). So the real answer is most/nearly all of us don't need an RB. And for sure I wouldn't use a inspiration at 300ft. (or in all probability any other electronic RB). Of course I have no plans to go anywhere near 300ft, but I wouldn't use an inspiration at 20ft either. later Michael -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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