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[Charlie99]

MechDiver once bubbled...
RGBM has very little, if any, application to recreational diving. It's for deep, deco dives using He.

A more accurate statement is that RGBM offers less advantage for recreational diving than for deep deco dives using Helium, because RGBM and Haldane solutions converge for the short, non-stop diving common in recreational diving.

RGBM and VPM are improved systems of modeling decompression. Haldane is adequate for many purposes, but the dual phase models are clearly better.

 

[MechDiver]

Charlie99 once bubbled...
A more accurate statement is that RGBM offers less advantage for recreational diving than for deep deco dives using Helium, because RGBM and Haldane solutions converge for the short, non-stop diving common in recreational diving.

RGBM and VPM are improved systems of modeling decompression. Haldane is adequate for many purposes, but the dual phase models are clearly better.

 

[BRW]

Quicky update about RGBM in Rec Diving.

ONLY for single, no-deco, recreational dives
(air, nitrox, helitrox) does RGBM and Haldane
overlap(and at sea level)

For altitude, closely spaced repets, reverse
profile, multiday, and high frequency diving,
the overlap goes away, because bubble
dynamics come into play. And effects of
RGBM are more important as the activities
become more extreme, more closely spaced,
more prolonged, and deeper on second dive.

RGBM is encoded into Mares, Dacor, Plexus,
Suunto, Hydrospace, Zeagle, and Steam Machines
computers across rec to tec diving, OC to RB.

NAUI Rec and Tec Tables are congruent with
these implementations.

The real important features of a dual phase
model like RGBM showup in the mixed gas, deco,
deep, and long exposure regimes.

Regards,

Bruce Wienke
Program Manager Computational Physics
C & C Dive Team Ldr

 

[MechDiver]

BRW once bubbled...
Quicky update about RGBM in Rec Diving.

ONLY for single, no-deco, recreational dives
(air, nitrox, helitrox) does RGBM and Haldane
overlap(and at sea level)

For altitude, closely spaced repets, reverse
profile, multiday, and high frequency diving,
the overlap goes away, because bubble
dynamics come into play. And effects of
RGBM are more important as the activities
become more extreme, more closely spaced,
more prolonged, and deeper on second dive.

The real important features of a dual phase
model like RGBM showup in the mixed gas, deco,
deep, and long exposure regimes.

Regards,

Bruce Wienke
Program Manager Computational Physics
C & C Dive Team Ldr

Thanks for the clarification

MD