Decompression model comparison finds 15 to 102 minutes "time to surface"

[Lutz Vieweg]

On 10/30/2015 12:29 AM, Lutz Vieweg wrote:
> just for the fun of it: The official periodical of the German society for diving and hyperbaric
> medicine (GTÜM) recently published an article comparing the decompression stop recommendations
> of no less than 46 different dive computers, decompression tables and dive planning software,
> all for the very same simple dive (just air, bottom time 25 minutes at -42m).
>
> They found astonishingly different decompression recommendations, ranging from
> 15 minutes to 102 minutes "time to surface".
>
> Find the whole article in
>   http://gtuem.praesentiert-ihnen.de/caisson1-2015.pdf
> the text is in German, but the result tables on pages 18 and 19 are
> trivial to understand also to non-german speakers.
>
> The next issue of this periodical was announced to contain a second part of this
> comparison, then with Heliox 80/20 for breathing instead of air.

This second part has been published by now, see
http://gtuem.praesentiert-ihnen.de/caisson_3-2015.pdf
starting at page 6.

The different time-to-surface values computed by different software/computers
for the same dive using Heliox 80/20 vary from 41 to 528 minutes!

Regards,

Lutz Vieweg