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> Longtime. With regards to the Mk5, what other pieces of equipment would be > necessary in order to operate and maintain the unit? Mask (FFM or regular), fins, booties (unless you have full-foot pocket fins), and for you weenies who dive in cold water, some sort of thermal protection (just kidding about the weenie thing). If you wanted to do multiple mix dives, or super long duration dives, you'd want an aluminum 30 cf offboard diluent culinder (with DIN valve) and an offboartd O2 pony bottle. You might also want to keep a flathead screwdriver and a set of allen wrenches handy, but that's not required. For hard core decompression dives, you'd want to have a couple of large-capacity cylinders with appropriate mixes to cover your ass in the event of an open-circuit bailout. You might also need an upline and a reel to tell surface support that you need help, if you ever need help. > What pressures are the > diluent and oxygen tanks designed for and what is the time/depth duration > for a fully charged system(please state metabolic oxygen consumption and > scrubber material for estimate)? I think the onboard cylinders are 3000 psi, 13.5 cf for O2, and about 20 cf for diluent. I never fill my O2 cylinders more than about 1800-2000 psi (what I can get from decanting from an industrial cylinder). I go through about 200-400 psi (~1-2 cubic feet) of O2 per hour, so you can calculate time limits based on how much O2 you carry (what cylinder sizes, what pressures, whether or not you carry offboards). The CO2 canister will be your ultimate time limit factor. This will depend entirely on your personal metabolic rate at a given workload (which can vary by at least a factor of two between individuals) and your average dive worload. When the canister is filled with Sofnolime, I get about 10-12 hours effective dive time at average workloads. My friend John gets about half that. LiOH should provide almost twice the duration, but you'll have to find out for yourself. > With regards to training, I assume > Cis-Lunar is still conducting training in-house, but at what cost and what > is the duration? - Tony Richard Nordstrom and Kevin Gurr would know better than I - ask them (I can give you their email addresses). I think the details have not yet been firmly established. Tom? Any insights? Aloha, Rich
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