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Tim, I know. Bruce's stuff is excellent, and compares closely to what Jarrod and I actually do for our own account but can not recommend to others who do not have the same extreme physiology that the two of us have. The only place we differ from Dr. Weinke is in stops that approach a gas switch - I blow them off almost completely ( like the 40 foot stop on a very long dive), while Bruce extends them quite a bit. The only differnce is that I accept the offgassing in bubble form at that point in the deco as a vlaid method, while Bruce is avoiding that and Bruce's way is a lot smarter unless you are bullet proof in the precondition department, which I am as are most of the WKPP gas divers - that is by process of eliminiation - you can't do what we do and have any preco's. Yesterday we had an impromptu deco contest . I thought Werner had gotten ahead of me ( we were totally blacked out from 120 feet to the surface) and I abreviated about 40 minutes to beat him , but it was not Werner, it was Nanci LeVake who has about 80 minutes less bottom time on her dive than I had on mine, but it make no difference. If you have no preconditions, Weinke's stuff is solid gold and is far more correct than any of the previous models in my opinion, and can be fudged in the low ppo2 range for the good offgassers. I like what you guys are doing out there with this - how about let me come out and let's see what the human body can take in a chamber test. Nauitec@ao*.co* wrote: > > George, > This was supposed to go to you and JJ for comparison. 50-50 Heliox and 50-50 > Nitrox begin at 70 fsw. This a true phase model with compartment integration. > Compartments are 1 through 720. However with your applications (depth and > duration), phase within the algorythm is predominant. > > Tim O'Leary > > --------------------------------------------------------------- > > Subject: WKPP 220/20 RGBM TMX Schedule with He or Ni Switches > Date: Fri, 7 Jan 2000 17:07:17 -0700 > From: "Bruce R. Wienke" <brw@la*.go*> > To: techdiver@aquanaut.com > > Gentlemen; > >> >>> > > >> >>> > Tim O'Leary passed your "deco help" message and specifically a > >> >>> > request for a RGBM trimix schedule calculation for tmx16/50 at > >> >>> > 220 fsw for 20 minutes, with a switch to either 50/50 nitrox or > >> >>> > heliox at 70 fws, and pure oxygen at 20 fsw. For simplicity, > >> >>> > ascent and descent rates are 30 fsw/min. Notice deeper stops > >> >>> > within phase RGBM, and total times less than haldane of comparable > >> >>> > conservatism -- moderate conservatism in this case. > >> >>> > >> >>> We are in the process of publishing some trimx and helitrox > >>Tables > >> >>> for ranged mixtures. We have been diving RGBM schedules for awhile, > >> >>> here at LANL and NAUI Tec. We can do other schedules (within > reason, of course). > >> >>> > > >> >>> > Bruce Wienke > >> >>> > > >> >>> > dive number = 1 altitude = 0.00 ft > >> >>> > > >> >>> > RGBM Trimix Version > >> >>> > B.R. Wienke/Los Alamos National Laboratory > >> >>> > > >> >>> > --dive profile-- > >> >>> > > >> >>> > surface breathed nitrogen = 0.79 > >> >>> > manuever 1 depth = 0.00 fsw time = 0.00 min > >> >>> > manuever 2 depth = 220.00 fsw time = 3.67 min > >> >>> > manuever 3 depth = 220.00 fsw time = 20.00 min > >> >>> > > >> >>> > trimix = 0.50 helium 0.34 nitrogen switches = 2 > >> >>> > switch 1 depth = 70.00 fsw helium = 0.00 nitrogen = 0.50 > >> >>> > switch 2 depth = 20.00 fsw helium = 0.00 nitrogen = 0.00 > >> >>> > > >> >>> > > >> >>> > --adjusted rc = 0.757 micrometer-- > >> >>> > > >> >>> > - excursion to depth = 220.00 fsw - > >> >>> > > >> >>> > - time at inital depth = 20.00 min > >> >>> > -------------------------------------------- > >> >>> > - stop - depth - wait - tissue - tension > >> >>> > - 1 - 160.00 - 0.00 - 1.67 - 172.60 - > >> >>> > - 2 - 150.00 - 0.00 - 1.67 - 170.42 - > >> >>> > - 3 - 140.00 - 1.00 - 1.67 - 154.86 - > >> >>> > - 4 - 130.00 - 1.00 - 3.33 - 144.95 - > >> >>> > - 5 - 120.00 - 1.00 - 3.33 - 137.43 - > >> >>> > - 6 - 110.00 - 1.00 - 3.33 - 130.02 - > >> >>> > - 7 - 100.00 - 1.00 - 3.33 - 122.69 - > >> >>> > - 8 - 90.00 - 2.00 - 6.67 - 111.32 - > >> >>> > - 9 - 80.00 - 3.00 - 6.67 - 101.33 - > >> >>> > - 10 - 70.00 - 1.00 - 6.67 - 92.39 - > >> >>> > - 11 - 60.00 - 2.00 - 6.67 - 78.04 - > >> >>> > - 12 - 50.00 - 2.00 - 13.33 - 70.31 - > >> >>> > - 13 - 40.00 - 3.00 - 13.33 - 61.52 - > >> >>> > - 14 - 30.00 - 4.00 - 13.33 - 51.56 - > >> >>> > - 15 - 20.00 - 5.00 - 26.67 - 40.14 - > >> >>> > - 16 - 10.00 - 9.00 - 26.67 - 30.29 - > >> >>> > --------------------------------------------- > >> >>> > - total time surface = 39.67 min > >> >>> > > >> >>> > > >> >>> > dive number = 1 altitude = 0.00 ft > >> >>> > > >> >>> > RGBM Trimix Version > >> >>> > B.R. Wienke/Los Alamos National Laboratory > >> >>> > >> >>> > --dive profile-- > >> >>> > > >> >>> > surface breathed nitrogen = 0.79 > >> >>> > manuever 1 depth = 0.00 fsw time = 0.00 min > >> >>> > manuever 2 depth = 220.00 fsw time = 3.67 min > >> >>> > manuever 3 depth = 220.00 fsw time = 20.00 min > >> >>> > > >> >>> > trimix = 0.50 helium 0.34 nitrogen switches = 2 > >> >>> > switch 1 depth = 70.00 fsw helium = 0.50 nitrogen = 0.00 > >> >>> > switch 2 depth = 20.00 fsw helium = 0.00 nitrogen = 0.00 > >> >>> > > >> >>> - excursion to depth = 220.00 fsw - > >> >>> > > >> >>> > - time at inital depth = 20.00 min - > >> >>> > -------------------------------------------- > >> >>> > - stop - depth - wait - tissue - tension > >> >>> > - 1 - 160.00 - 0.00 - 1.67 - 172.60 - > >> >>> > - 2 - 150.00 - 0.00 - 1.67 - 170.42 - > >> >>> > - 3 - 140.00 - 1.00 - 1.67 - 154.86 - > >> >>> > - 4 - 130.00 - 1.00 - 3.33 - 144.95 - > >> >>> > - 5 - 120.00 - 1.00 - 3.33 - 137.43 - > >> >>> > - 6 - 110.00 - 1.00 - 3.33 - 130.02 - > >> >>> > - 7 - 100.00 - 2.00 - 3.33 - 117.43 - > >> >>> > - 8 - 90.00 - 2.00 - 6.67 - 108.94 - > >> >>> > - 9 - 80.00 - 3.00 - 6.67 - 99.57 - > >> >>> > - 10 - 70.00 - 2.00 - 6.67 - 90.79 - > >> >>> > - 11 - 60.00 - 3.00 - 6.67 - 78.78 - > >> >>> > - 12 - 50.00 - 4.00 - 13.33 - 70.40 - > >> >>> > - 13 - 40.00 - 5.00 - 13.33 - 61.19 - > >> >>> > - 14 - 30.00 - 6.00 - 13.33 - 51.02 - > >> >>> > - 15 - 20.00 - 7.00 - 26.67 - 39.37 - > >> >>> > - 16 - 10.00 - 8.00 - 40.00 - 29.70 - > >> >>> > -------------------------------------------- > >> >>> > - total time surface = 49.67 min > >> >>> > > >> >>> > total dives processed = 2 > >> >>> > > >> >>> > >> >>> > >> > > >> > > >> > > >> > >> > > > > -- > Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. > Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. 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