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The only place this makes sense is when doing rec. dives and wanting to do a couple of safety stops. Doing a 2 minute stop at 1/2 the maz depth and a 3 min. stop at 15, I find it annoying not to have a seconds display, because I end up having to round up, and might do a 2.59 minute stop. It's just boring, and since I want to be setup with 2 timing devices anyway, I just made sure the second one has seconds on it. It's not a question of timing stuff to the second, it's a question of getting an idea of where you are in the minute, beginning or end. Other than that I agree with what you say. <billy@v3*.co*.au*> wrote: ~ >At 06:06 10/03/01 , Frank wrote: > > >>I just found that when on a deco stop, looking at a dive computer would show >>the run time in minutes. Hence if I needed to do a 3 minute stop at 40m, my >>actual stop would be between 3 and 4 minutes. > >No. If you left your last stop on time and your ascent >rate is steady, you won't miss anything off stops that >are 10M/30ft apart cause the minute transit time is >calculated into the run time. Between the longer stops >that are 3M/10ft apart, your run-time should show the >transit time as instantaneous so if you leave the last >stop on time you'll clip, what? 20 seconds of the next >stop. Insignificant. And you leave THAT stop on time >so you don't accumulate the deficit. > >However, since steady gradients are more efficient than >'stair-steps' for off-gassing when shallow, you're probably >doing more deco-good for yourself spending that 20 seconds >ascending TO the stop than hanging at it. > >With an organic process like decompression in a chaotic >system like the human body, timing stops to the second is >a waste of time. > >rgds billyw > > > > >'llo >that are >are 3M > >> If I need to do 3 or 4 deco stops >>this could add 3, 4, or 5 minutes to my run time or it would change >>my planned >>time between deco stops. I know this is only a small point but I just find it >>annoying. >> >> >>cheers >>frank >>----- Original Message ----- >>From: <billy@v3*.co*.au*> >>To: "Frank" <fbaars@bi*.ne*.au*>; <techdiver@aquanaut.com> >>Sent: Friday, March 09, 2001 2:37 PM >>Subject: Re: Underwater timers. >> >> >>At 06:00 8/03/01 , Frank wrote: >> >Billy, >> > >> >I use an analogue watch with depth and bottom time as my backup. >>The watch has >>a >> >large second hand which can be use as a stand-in stop watch. >> >> >>What do you need to time in seconds? >> >>rdgs billyw >> > >-- >Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. >Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. -- Paul B. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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