Graph documentation [was: Re: Meaning of GF settings]

Dirk Hohndel dirk at hohndel.org
Tue Jan 8 14:26:08 PST 2013


"Robert C. Helling" <helling at atdotde.de> writes:

> On Jan 8, 2013, at 9:01 PM, Linus Torvalds wrote:
>
>> That said, I'm a bit surprised your Suunto isn't even *more*
>> conservative than that, though. Do you perhaps set your Vyper to the
>> 50% RGBM model setting? (I don't even know if it has that setting - my
>> Vyper Air does).
>> 
>>> I used the default parameters btw (GFlow 30 and GFhigh 75).
>> 
>> If those are more conservative than even a suunto, I suspect we should
>> make them less so for the default "show" to not make people worry.
>
> I think it is well known by divers using Suunto computers for deco
> diving that if you want to get out of the water today you must set
> conservativism to 0 as anything else gives highly unrealistic values.
>
> I do my diving (actually: have done my diving) in the lakes south of
> Munich (e.g. Starnberger See) which are around 600m above sea
> level. For the Suunto's strictly speaking that requires setting them
> to mountain mode (above 500m) but that has the same effect as
> conservativism so nobody I know who dives here regularly does that. To
> that extend that I had friends visiting from lower parts of the
> country that hat set their Vypers to mountain mode A1 and after a
> typical dive in the 30m range had more than 30min more deco obligation
> than me (we skipped most of that of course).

Yikes.

But I have heard this before... My brother is a diving instructor near
Munich and he has long since thrown away his Suunto and is diving an
OSTC. They were speculating at some point that the Suunto might give you
a deco obligation if you took it into the shower for too long...

/D


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