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Tables with a max descent rate give you some credit for the time of descent. If it takes you two minutes to get to the bottom, for example, the tables don't assume you spent those two minutes at bottom depth, but track inert gas loading at intermediate depths during descent. In order to do that, they need to know what your descent speed is. Carlos Stephen Gillies <max@ma*.ne*.au*> on 11/04/98 23:18:34 To: techdiver@aquanaut.com cc: (bcc: Carlos Accioly/Ipanema/isa) Subject: maximum descent rates I was wondering if there was any theory behind maximum descent rates. Sure we shouldnt ascend faster than 18m/minute and the theory behind that is fine with me, but some agencies (BSAC) give maximum descent rates but dont explain why. I'm looking at depths to around 50 metres for example. I've heard some divers say "we get down there asap to maximise bottom time". Is this a wise move? I'm assuming that in reaching the bottom we dont have any ear problems and we manage to slow our descent before we slam into the seafloor (maybe these two reasons are reasons enough?) MAx. max@ma*.ne*.au* --- PRANK OF A LIFETIME Please distribute this to everyone (on earth, that is) you know. When John Glenn returns from space, everybody dress in ape suits. We only have a few days to bury the Statue of Liberty up to her head. -- 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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