Aldo, Same fundamental approach: cut your tables (e.g., Deco Planner) and plan your dives as multilevel, inc. gas and overstay contingencies, then all you need is your bottom timer. Example, when diving the "Roy A. Jodrey," a 640' freighter wreck in the St. Lawrence Seaway, which angles sharply down at about 45 degrees, I plan part of the dive at 220' - 230'; then multilevel to 180' (where the lower wheelhouse is); then finish at 145' (upper part of the wreck). I calculate 3-4 different (total) bottom times, possible loss of 50% O2, etc. ~ but otherwise it works the same as a single-depth dive: you jump in the water with tables and a bottom timer. Hope that helps, Sincerely, Nelson Perry ------------------------------------------------------------------------------ --------------------------------------------------------- In a message dated 5/25/01 11:31:54 AM Eastern Daylight Time, aldo.solari@ho*.se* writes: > Dear all, the "trimix computer" and general use of diving > computers threads are the background to the following question: > > - What is or could be a DIR approach to multilevel diving ? > > Many dives (scientific, exploratory, recreational) follow a > multilevel profile. Diving in a reef, sampling juvenile fish or > other organisms, etc. are necessarily multilevel dives. > > Your comments will be mostly welcome. > > Cheers, > > aldo.solari@ho*.se* > www.ccbb.ulpgc.es/fish-ecology/solaris > ___ -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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