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Hi there! Being new to the mailing list, I'd like to give a brief presentation about myself. I'm 32 years of age and started scuba diving in 1981. The last five years I've been living (and diving) in Stavanger. Stavanger is situated on the southwest coast of Norway, has a population of about 100 000, and is the "oil capitol" of Norway. My interest in technical diving (deep diving) started in 1993 when I added a 2 litre pony to my 2x7 litre main air supply to cover some "what if's". Since then I've read the books, done IANTD Technical Nitrox training, acquired 6 more tanks, regulators, OMS wings and all the other stuff. I have 80-100 dives per year (30-40 tech dives including 2-3 Trimix dives per year). Together with some friends I've formed a small Teckie group. When we do Trimix or Deep Air dives with long decompression (EAN80), we have a support crew of 2-4 persons, depending on the conditions. All our tech dives are relatively well planned, to minimize adrenaline levels and to add safety. For a typical Trimix dive we make a written plan (4-6 pages), to define objectives, time schedule, contingencies, decompression plan, and to assign specific tasks to the different team members. We're also members of a local diving club, where we have our own storage room and may borrow boats, compressors and other equipment. Just 5 minutes from the club house is the wreck of a 100' ship, standing upright on 48msw in sheltered waters, which we use as a training site. Nearby is also a 65msw deep wall which is OK for deep air training in a controlled environment. To find some of the more exiting wrecks in the Stavanger area we go off the Jaeren coast, which has numerous wrecks from WW2 and earlier/later times, at depths ranging from 35msw to 65msw. Diving there is however often very difficult due to heavy currents and swell. Although it may perhaps not be rated as one of the greatest inventions this century, a decompression frame we made 1/2 years ago has added great comfort to decompression diving. It's a simple rope-ladder type decompression frame made from: 2 off 40mm dia aluminium tubes, each of 2m lenght 2 off large fenders 2 off 15kg lead weights 2 off 8m 12mm nylon rope 4 off schackles + some rope thimbles, carabine hooks and other stuff See figure below: 0 0 Fender bouy ~~~~~~~~ Sea level I I I I --------------- 3m (40mm dia al. tubing) I I I I --------------- 6m (40mm dia al. tubing) I I <- 2m - > In addition to the above is a system for connecting/disconnecting the frame to/from the shot line. This may either be done from the surface, or from the 6m stop. Two years ago I made a computer program for blending Nitrox and Trimix. It takes into account the varying compressibility factors of the different gases, and was quite complex, and fun, to make. But since Trimix for us spells HELIAIR, and I found out that the compressibility factors cancels each other out (Z He @ 100bar = Z air @ 200bar), I made a set of mixing charts on Excel, which I find more useful than the computer program. This summer my tech. activity has been very low since the team members (and myself) have been off to various vacations. However, I've had an average of two ordinary (no-decom.) dives per week, so I haven't dryed up altogether. I recon we'll be back in business in September for some serious diving. In two weeks time I'm getting married to a female Scubadiver. We'll go to Malaysia for our honeymoon. Perhaps some of you have useful info. about diving there? -bjorn- -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send list subscription requests to `techdiver-request@aquanaut.com'.
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