Re: [PSUBS-MAILIST] US Navy Diving Manual

[rjune@fuse.net]

just a quick comment ... 

"yes the The US Navy dive tables are widely regarded
(by anyone other than the US Navy) as being somewhat
archaic, and not reflecting current thinking on the subject
(the original USN air tables were derived empirically from USN test subjects)."

... those test subjects were 18 to 25 years old, all white males,
and all in great physical shape.  Souds like the perfict sampling
for the average diver ...lol 

> 
> From: "Sean T. Stevenson"<sts@telus.net>
> Date: 2002/05/09 Thu PM 03:41:02 EDT
> To: personal_submersibles@psubs.org
> Subject: [PSUBS-MAILIST] US Navy Diving Manual
> 
> With the recent discussion on this list in regard to the US Navy Diving Manual,
> I feel it necessary to point out that, while this manual is an excellent reference
> on diving history and logistics, it is perhaps not the best source for information
> on mixed gas diving, decompression procedure or diving physiology in general.
> 
> 
> The US Navy dive tables are widely regarded (by anyone other than the US Navy)
> as being somewhat archaic, and not reflecting current thinking on the subject
> (the original USN air tables were derived empirically from USN test subjects).
>  I encourage anyone who may be interested in further information on these subjects
> to read "The Physiology and Medicine of Diving - 4th Edition", as well as either
> of the two books written by Dr. Bruce Weinke, a researcher of decompression
> mechanics at Los Alamos (RGBM, VPM).
> 
> US Navy Special Warfare has been conducting research into mixed gas decompression
> techniques in conjunction with the florida cave diving group, the Woodville
> Karst Plain Project.  This organization has been developing decompression schedules
> for deep and long mixed gas dives (saturation, in some cases) over the past
> ten years or so which seem to radically contradict the schedules produced by
> the common algorithms.  Some of this information originates with oil field
> divers, and these companies tend to keep their information proprietary, so
> the infiltration to the rest of the industry has been slow.  To my knowledge,
> the USN manual does not discuss the new models.
> 
> The two volumes of the USN manual are definite "must have's" in the library,
> but do consider that there are other, perhaps more current sources of information.
> 
> 
> -Sean
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