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GF again
Posted: Sunday 26. December 2010, 18:05
by Solodiver
1. Is GF 100/100 equal to plain Bühlmann?
2. Additionaly to 1: Which other CF are affects the GF/deco calculation?
3. Why is the suturation value/current GF not longer shown when the deco is finished? I'd like to check this value after deco also, also in surface mode.
Re: GF again
Posted: Tuesday 4. January 2011, 11:28
by JeanDo
Solodiver Wrote:
-------------------------------------------------------
> 1. Is GF 100/100 equal to plain Bühlmann?
No. With GF you don't use the saturation/desaturation ratio anymore (CF11,12) which are mandatory for a plain Bühlmann.
> 2. Additionaly to 1: Which other CF are affects
> the GF/deco calculation?
CF#32, CF#33: the GF_low and GF_high factors.
CF#29: the depth of the last stop (def. 3m). Does only affect that stop duration (and TTS).
CF#16: offset (def. 1m) added to requested stop when computing decoplan.
And selectable gas from your gaslist:
- Selectable == either first gas, or active gas with a depth > 0.
- Priority to the last one whose switch_depth(+1m+150mbar) > actual ascent depth.
Re: GF again
Posted: Friday 7. January 2011, 19:48
by Solodiver
JeanDo Wrote:
> No. With GF you don't use the
> saturation/desaturation ratio anymore (CF11,12)
> which are mandatory for a plain Bühlmann.
Oh, thx JeanDo, so CF11 and CF12 are just used for nonGF/Bühlmann dives!? This leads to the conclusion, that GF100/100 is equal Bühlmann but not the way the OSTC calcukates it by adding safety margins with CF11 and CF12!? Or the other way round: if CF11 and CF12 both are 100% then GF 100/100 would be equal to Bühlmann calculated by OSTC?
> CF#16: offset (def. 1m) added to requested stop
> when computing deco plan.
Will CF16 be considered for the calculation of actual desaturation? I understood it is for calculating the TTS/deco stops (only)?
Any way to show the GF after deco is finished? Haven't tried 1.75 yet (but already installed
.
Thx,
Jan
Re: GF again
Posted: Monday 17. January 2011, 14:53
by ujacek
Solodiver Wrote:
> 3. Why is the suturation value/current GF not
> longer shown when the deco is finished? I'd like
> to check this value after deco also, also in
> surface mode.
This is my question (and suggestion) too. I's possible to show GF after deco is finished and GF >= CF8 ("threshold in % for display of the gradient factor") - at least in dive mode, maybe in surface mode?
Jacek