Backup Computer?

[Kern]

I don't use V-Planner to plan my rec dives (too much work IMO; I much prefer the simplicity of min deco). I am curious though whether it's appropriate. Has VPM been validated over recreational "NDL" dives? The no stop times certainly aren't in correspondence with other published tables (though obviously they are somewhat close).

Simply because software will produce certain schedules doesn't mean they've been validated to any extent (e.g. V-Planner is quite happy to give you a schedule for a dive down to the Titanic; I don't think it'd be smart to attempt using it for such a dive, though ).

According to Ross, VPM-B scales from shallow NDL to any reasonable depth/time/mix.

According to my use of V-Planner Live for the last 3 or so years it gives results within the range other NDL tables/computers. I'v certainly not felt a niggle or even any unexpected fatigue in hundreds of dives at various depths/times.

 

[Rainer]

Good to know; thanks. Some of the other "technical" software I've seen does not scale to NDL dives (it just isn't designed for such uses).

According to Ross, VPM-B scales from shallow NDL to any reasonable depth/time/mix.

According to my use of V-Planner Live for the last 3 or so years it gives results within the range other NDL tables/computers. I'v certainly not felt a niggle or even any unexpected fatigue in hundreds of dives at various depths/times.

 

[Kern]

Good to know; thanks. Some of the other "technical" software I've seen does not scale to NDL dives (it just isn't designed for such uses).

Until recently, I would have responded that possibly, duel phase models represented reality better than single phase ones. However, not long ago, I was informed that BRW didn't think that the fully iterative dual phase version of RGBM should be used for NDL dives.

 

[Rainer]

RGBM is one of the examples I was thinking of.

Until recently, I would have responded that possibly, duel phase models represented reality better than single phase ones. However not long ago I was informed the BRW didn't think that the fully iterative dual phase version of RGBM should be used for NDL dives.