Mailing List Archive

Mailing List: techdiver

Message Display

>Callum Beveridge (cb@oa*.ic*.co*.uk*) writes:
>
>2) Currently using the Buhlmann/Hahn tables (0-250m) but restricted to 63m and 
>fairly limited bottom/stop time.  Does anyone have more info on these tables/
>algorithms which would let me extend these limits?  These tables suit our
>style of diving in terms of stops and conservatism - any other 'similar' tables
>which would suit our needs?

Greg Ryan has suggested DCIEM tables since they are similarly conservative
and give the option of modifying stops using oxygen. If your concern is the
63m depth limitation I have 3 things to say:

(1) U.S. Navy extreme exposure tables cover deeper dives. Although I know
divers who use them successfully these tables aren't considered very safe
and certainly not conservative. They were actually designed for extreme
situations and not for routine use.

(2) Another option is to use a computer. Aladins (are they marketed under
the same name over there?), a.k.a. U.S. Divers Monitor II, Parkway Legend
(?) are rated for 100m. On square profiles they will be as conservative
as tables, or even more conservative.

(3) Doing anything but very short dives deeper than 63m on air is not
a good idea.

Bill Mayne

Navigate by Author: [Previous] [Next] [Author Search Index]
Navigate by Subject: [Previous] [Next] [Subject Search Index]

[Send Reply] [Send Message with New Topic]

[Search Selection] [Mailing List Home] [Home]