RGBM Question

[scubadada]

Every decompression algorithm I know has ways of adjusting things to your preferences. For Bühlmann, it is gradient factors. VPM has +1, +2, +3, +4, and +5 conservatism choices. I know that RGBM can be similarly adjusted. Bruce Weinke said that RGBM had gradient factors in it from the start, although he called them reductions, IIRC. I just need to be able to identify which option I am using when I identify the results.

For those looking for a full-blown comparison of algorithms, I am sorry to disappoint. The purpose of the paper is quite different. The comparison I am making is a minor point within it, which is why I am asking for such a specific profile. I don't need to know anything more about the algorithm than the answer to that specific question.

The Eon Steel has 5 levels P-2 through P+2. Perhaps @Diving Dubai can help you

 

[Storker]

I don't really need the latest and greatest. In fact, it might not be preferred, since my purpose has a touch of history about it.

I have Suunto's Dive Planner on my PC. It's of course running Suunto's particular, proprietary and undocumented version of RGBM. Also, I don't know if it's intended for staged deco diving, or if it's intended only for no-stop. It's also prescribing a "deep stop" at half max depth; I really don't know if that's a kludge that Suunto has added on or if there's anything like that in Wienke's original algorithm.

If you want me to run a few profiles through it, give me a shout.

 

[boulderjohn]

Just an attempt to run it, I would suggest playing with DM5 yourself since I only know the book knowledge for tech stuff.

Thanks! Assuming everything was done correctly (and I have only your own professed uncertainty to think otherwise), that is exactly what I need.

 

[Manatee Diver]

About the only thing that looks off is that the 20minutes at 200ft includes a 6min descent.

Here is one that includes a full 20 minutes at the bottom. I also got rid of the low pressure warning (increased the back gas tank size to 300cuft).

 

[Graeme Fraser]

I am looking for a planned profile. I will be comparing it to other algorithms. I need it to be precise.

Fair enough. After that I remember we ended up dialing the conservative settings back on the Suunto's to -2 just to keep up a couple of SW Petrel guys on a drift deco with 30/80 GF.

 

[boulderjohn]

About the only thing that looks off is that the 20minutes at 200ft includes a 6min descent.

Here is one that includes a full 20 minutes at the bottom. I also got rid of the low pressure warning (increased the back gas tank size to 300cuft).

Including the descent is fine. I included it in the others.

 

[rjack321]

You need to find someone with a copy of "GAP" to run the Bruce Wienke version of RGBM. That software hasn't been supported in years though so it's passed into obscurity.