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OK ! I think that still there where no clear answers on Jozef question which was my question as well. What we got was mostly what everyone was using rather than why. I run several scenarios on Deco-Planner with depths from 40-55m It seams that the 50/50 benefits over O2 only a minute or 2 on short dive times in the range of 40-50m where stops below 6m where short. Further more on longer dives ( 30-40minutes ) the difference was bigger 50/50 was getting you out of the water 10 -12 minutes faster. I personally like to curry the O2 on 40-50m dives mainly for 3 reasons. 1: It like to breath it on surface if anything gets screwed up. 2: Im worried of over-loading my cns clock just before getting to the last 6m looong stop. 3: Most of my dives are in the range of 40-50m so i don't have to blend 50/50 all the time. In the other hand : 1: If i use 50/50 im out faster 2: If im using 50/50 and making most of my deco in the range of 21-9m then don't i end up with less microbubles ?????? Rgds Manos Manoli Limassol-Cyprus www.smiley.cy.net/cytech Amount of quality dive time means far more , than any number of dives and any number of C-cards. Manos Manoli wrote: > Right ! Can we have all the answers in public pls since this one im > sure its a popular question. > > Gliviak, Jozef wrote: > >> Hello guys, >> >> Recently we had a disscussion with a few friends where some of them >> advocated usage of N50 instead of O2 typically for dives like >> 55m/15min. My >> opinion would be to choose O2 rather then N50. >> Can you please answer me if there are a situations when it is more >> appropriate to use just N50 instead of oxygen. Please add a few >> examples of >> dives where would you choose O2 and where N50 as the only deco gas. >> >> Best regards >> >> Jozef Gliviak >> Slovakia >> >> ----------------------------------- >> The answer I received from George is too general for me to see where >> is the >> effective border >> Trey: >> Depends on the bottom gas. Oxygen if the dive is shallow, 50% if it is >> deeper . The idea is to get good deco at all the intermediate steps, >> relieving the need for oxygen up high. Go by the bottom gas and the >> time. >> Add gases as needed. >> -- >> Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. >> Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. >> > -- Rgds Manos Manoli Limassol-Cyprus www.smiley.cy.net/cytech Amount of quality dive time means far more , than any number of dives and any number of C-cards. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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