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JT, Let me assure you that nothing of this stuff is "rejected" by anyone. While the methods to buy russian eqipment may seem adventurous to some. Once it was said, in the beginning of the aquiring process there is 15 minutes of fright, followed by half an hour of full throttle ;-). Trading with russian entrepreneurs still has its pecularities. From a technological point of view, the machining methods and materials used vary a bit from western modern ones, there is more use of sheet metal, handiwork as against CAM, pressuremolding, for instance. The inherent qualities lies in quality, good craftmanship, efficient design, and if needed, the cost no object appraoch, as it is found in the Protei DPv, or the IDA 72 rebreather. The difference in the saftey concept may be made clear in one minute example. O-Rings vs. flat rubber face seals. In an O-ring design, even the most stupid user would get a tight seal, even when he is not torquing the joint with the right torque ( the merrican way). In a flat seal, you have to _know_ what you are doing, feeling the right pressure in your hands, prolonged by the spanner. If the O-ring breaks, the joint is screwed, if the flat seal wears out, you may tighten it further, or replace it by some local weeds ;-). In practice, I can only speak for semiclosed, or fully closed oxyygen rebreathers. That taken, you probably won't find a rebreather as comfortable as, for instance, my russian IDA 64. A Rolls Royce compared to a Volkswagen Beetle, taken the LAR V as the beetle here. Btw, did you know that the titanium shell of the Protei houses a silver/Zinc? accumulator, equivalent in $ to an median US citizen suburban home ? Matthias Capt JT schrieb: > > That site is a junkyard of Russian reject crap. I was sent a CD of a > scooter from a guy in Canada (I think), it is the fastest dam thing I have > seen. >http://www.kuroyumes-developmentzone.com/appleyard/seapatrol/uw/protei_sub1 > >.jpg > >http://www.nobubblediving.com/protei.htm > >Have any of you heard of a Russian diver-rider called a Protei-5, as > >at these links? -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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