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Scuba Forum / General / September 2006Historical wreck tour Malaysia 2007
At this moment we are looking for people who would like to join us on a historical wreck tour in Malaysia March, April and May 2007 We intend to have several groups out in the South China Seas. The expedition will run for several weeks back-to-back. There is an abundance of historical wrecks in this region. We have a list of known wrecks, and a list of so called "unknowns" If enough interest of the group we will also dedicate some dives to these unknown dive sites. We would like to gather more information on some of the wrecks to complete some of our research. If you are interested, please send us an email, and we will inform you in more detail. Send us some information on your dive preferences. Prerequisite for deep weeks: - Advanced Nitrox Qualified - DAN insurance ( or other ) Most wrecks are beyond normal Sport Diving depths 30+ However we will plan two weeks for wrecks shallower then 30 Meters Francis Leopold scubadates@gmail.com >At this moment we are looking for people who would like to join us on a >historical wreck tour in Malaysia March, April and May 2007 [quoted text clipped - 17 lines] >Most wrecks are beyond normal Sport Diving depths 30+ >However we will plan two weeks for wrecks shallower then 30 Meters You dive below 30 meters on nitrox? >Francis Leopold >scubadates@gmail.com  Signaturedillon If you can't figure out how to unmunge my address, email me and I'll explain it. >>Prerequisite for deep weeks: - Advanced Nitrox Qualified >>- DAN insurance ( or other ) > You dive below 30 meters on nitrox? Routinely. That's less than 100 feet. 32% is good to 111 at 1.4 PPO2 and 28 goes considerably deeper. I suspect, however, since he specified advanced nitrox that it's for decompression. Lee >>>Prerequisite for deep weeks: - Advanced Nitrox Qualified >>>- DAN insurance ( or other ) [quoted text clipped - 3 lines] >Routinely. That's less than 100 feet. 32% is good to 111 at 1.4 PPO2 and >28 goes considerably deeper. 30 is 99, so it's close enough. Yes, I knew that. It was my assumption (a.s u me) that when he said "below 30 meters" he meant well below, like deeper than "recreational". >I suspect, however, since he specified advanced nitrox that it's for >decompression. Sounds like a good bet. >Lee > Signaturedillon If you can't figure out how to unmunge my address, email me and I'll explain it. > 30 is 99, so it's close enough. Actually 98.425' = 98' 5.1"... I would round that to 98, not 98, but what the 'ell, you're close enough... <grin> > > 30 is 99, so it's close enough. > > Actually 98.425' = 98' 5.1"... I would round that to 98, not 98, Would you now? > Would you now? OK, finger fumble again... Change that to "98 not 99"... I've at least got an excuse for this one... I dropped my glasses on the marble floor in the bathroom and shattered one of the lenses... Yeah, it was glass lenses, not plastic -- some of us still prefer the optical clarity of glass over plastic... >>Would you now? > [quoted text clipped - 4 lines] > Yeah, it was glass lenses, not plastic -- some of us still prefer the > optical clarity of glass over plastic... Where do you find glass lenses? Signature“TANSTAAFL” “All I can say is there had better be some cheese at the end of this maze……” ____________________________________________________________________________ "A prudent man foresees the difficulties ahead and prepares for them; The simpleton goes blindly on and suffers the consequences." - Proverbs 22:3 > Where do you find glass lenses? A local optical shop... I suspect that you can get them anywhere, but you have to order the lenses and as such, you're not going to get your glasses in an hour like some of the mall stores... Probably a couple of days to a week to get the glasses... There's the one shop that I tend to deal with usually... I've helped him out with some computer problems he was having and he gave me 3 pairs of glasses in appreciation -- far vision, computer monitor distance vision, and polarized far vision... The ones that I broke were my general purpose progressive prescription with the UV sensitive gradient shading... I usually use these when I'm working around the house or riding my motorcycle since the lenses are larger and don't let as much air hit the eyes... The shop has a web site and you can order online... http://www.eye-style.com When I first started wearing glasses *many* years ago, most lenses were glass and you had to pay extra for plastic... These days, it's the other way around... The plastic lense blanks are fairly cheap and the optical shops have automated equipment so that cutting the lenses from the blanks requires minimal human intervention... >>Where do you find glass lenses? > [quoted text clipped - 12 lines] > > http://www.eye-style.com Thanks! I have tried to get basic glass lenses (don't scratch as easily) for a BOB and cannot seem to find them locally. Signature“TANSTAAFL” “All I can say is there had better be some cheese at the end of this maze……” ____________________________________________________________________________ "A prudent man foresees the difficulties ahead and prepares for them; The simpleton goes blindly on and suffers the consequences." - Proverbs 22:3 > Thanks! I have tried to get basic glass lenses (don't scratch as easily) > for a BOB and cannot seem to find them locally. I suspect that your local optical shop just didn't want to go to the trouble of ordering them for you... Yeah, they don't scratch as easy, but if you're running an angle grinder and only using them for eye protection, you will still find a small nick in them periodically... I would hate to see what the plastic lenses would look like though when the red hot metal sparks hits them... >>Thanks! I have tried to get basic glass lenses (don't scratch as easily) >>for a BOB and cannot seem to find them locally. [quoted text clipped - 7 lines] > plastic lenses would look like though when the red hot metal sparks > hits them... Actually, not too bad. I don't think that the 'sparks' carry that much heat or have enough mass to do much damage. in fact, Because plastic is, well, plastic, I don't think the carborundum chips do as much damage to them as to glass. But long term, Glass is better. Signature“TANSTAAFL” “All I can say is there had better be some cheese at the end of this maze……” ____________________________________________________________________________ "A prudent man foresees the difficulties ahead and prepares for them; The simpleton goes blindly on and suffers the consequences." - Proverbs 22:3 > But long term, Glass is better. Yeah, but these days, quite a bit more expensive than plastic from what I understand... Next time I'm over that way, I'll ask him what is the difference in the cost of the blanks... >> Where do you find glass lenses? > [quoted text clipped - 18 lines] >the optical shops have automated equipment so that cutting the lenses >from the blanks requires minimal human intervention... And my vision "plan" requires that the frames be shipped off to only god knows where. What should take a day takes 10. Signaturedillon If you can't figure out how to unmunge my address, email me and I'll explain it. >> 30 is 99, so it's close enough. > >Actually 98.425' = 98' 5.1"... I would round that to 98, not 98, but >what the 'ell, you're close enough... <grin> Actually, those 6.9 inches could mean the difference between life and death. I know my computer is that accurate. :-) Signaturedillon If you can't figure out how to unmunge my address, email me and I'll explain it. > >>Prerequisite for deep weeks: - Advanced Nitrox Qualified > >>- DAN insurance ( or other ) [quoted text clipped - 3 lines] > Routinely. That's less than 100 feet. 32% is good to 111 at 1.4 PPO2 and > 28 goes considerably deeper. Don't forget EAN21. >> >>Prerequisite for deep weeks: - Advanced Nitrox Qualified >> >>- DAN insurance ( or other ) [quoted text clipped - 6 lines] > > Don't forget EAN21. The "E" stands for enriched. How is 21% enriched? I always use trimix for deep dives. A .0005% He mix is just about right for the Spiegel Grove. bullshark wrote >>> Routinely. That's less than 100 feet. 32% is good to 111 at 1.4 PPO2 >>> and 28 goes considerably deeper. >> Don't forget EAN21. Good point. Normal convention suggests that, when talking about nitrox, we mean something with more than 21% oxygen, but technically, any mix of nitrogen and oxygen qualifies, including air. > The "E" stands for enriched. How is 21% enriched? Big deal. He called it EAN instead of Nitrox. You understood what he meant, right? > I always use trimix for deep dives. A .0005% He mix is just about right > for the Spiegel Grove. Let's get our terminology right. That's 21/.0005. I used 30/.0005 last time we were down there. Lee >> The "E" stands for enriched. How is 21% enriched? > > Big deal. He called it EAN instead of Nitrox. You understood what he > meant, right? So maybe I did. But bullshark loves it when I nitpick and I only nitpick bullshark because you made the claim that "Bullshark, on the other hand, has a long history of very precise and accurate posts in this forum." >> I always use trimix for deep dives. A .0005% He mix is just about right >> for the Spiegel Grove. > > Let's get our terminology right. That's 21/.0005. I used 30/.0005 last > time we were down there. Big deal. You understood what I meant, right? Oh, and it wouldn't be .0005 any longer after "diluting" the "mix" with pure oxygen. I could do the math, but it would make my head hurt right now. Maybe Grumman will oblige. >> Big deal. He called it EAN instead of Nitrox. You understood what he >> meant, right? > So maybe I did. But bullshark loves it when I nitpick and I only nitpick > bullshark because you made the claim that "Bullshark, on the other hand, > has a long history of very precise and accurate posts in this forum." He damned sure doesn't like it when I nitpick. >>> I always use trimix for deep dives. A .0005% He mix is just about right >>> for the Spiegel Grove. >> >> Let's get our terminology right. That's 21/.0005. I used 30/.0005 last >> time we were down there. > Big deal. You understood what I meant, right? Yeah, but Pot and Kettle are not terms either one of us should be tossing around carelessly. We both bear more than a little physical resemblance. > Oh, and it wouldn't be .0005 any longer after "diluting" the "mix" with > pure oxygen. I could do the math, but it would make my head hurt right > now. Maybe Grumman will oblige. Please don't. I considered doing it myself, but decided it was a lot easier, and almost as safe, to accept your numbers as posted. Foolish me. Lee > Yeah, but Pot and Kettle are not terms either one of us should be tossing > around carelessly. We both bear more than a little physical resemblance. Just because you have a dark tan and wear lots of heavy shiny jewelry doesn't mean you look black, and I'm even whiter than you. >A .0005% He mix is just about right for the Spiegel Grove. I don't know nuttin bout trimix, but five ten thousandths of a percent doesn't sound like it could make any difference at all. Seems like you'd need some expensive lab equipment to even detect such an infinitesimal amount. > I don't know nuttin bout trimix, but five ten thousandths of a percent > doesn't sound like it could make any difference at all. > > Seems like you'd need some expensive lab equipment to even detect such > an infinitesimal amount. HINT -- Check the percentage of helium in air... >> I don't know nuttin bout trimix, but five ten thousandths of a percent >> doesn't sound like it could make any difference at all. [quoted text clipped - 3 lines] > >HINT -- Check the percentage of helium in air... OK, I get it. Whoosh - right over my head. ...going for more coffee. (reminds me of the quizzical look I got when I requested 21% Nitrox) > > Don't forget EAN21. > > The "E" stands for enriched. How is 21% enriched? Several explanations: 1) My shop uses french fry grease for compressor oil. <<<food grade>>> 2) Technically, EAN21 is enriched with *precisely* 0 (zero) oxygen. I've verified this with a Simson-Lawrence EAN6200 Nukyuler Mass Spectromulator. It confirms *exactly* 0 (zero) on the "Enrichment" scale. It has been recently calibrated by Bruce Wienke at LANL and certified to be RGBM compliant. 3) In your perspective (lawyer) you should be familiar with 0% enrichment. Isn't that what plaintiffs get from a lawsuit after legal fees and expenses are subtracted from the award? 4) The air has also been "enriched" by virtue of purification. At 70% RH and 80F, air is only about 20.4% O2. After cleaning and drying, it's up to 20.9% (unfortunately the Simson Lawrence EAN6200 Mass Spectromulator has a fixed wavelength spinicumatator, so it's an inaccurate POS (How much accuracy can you expect from *anything* that uses the word "nukyuler" ?). It has been enriched with ~2.45% additional oxygen content. 5) EANx has evolved as standard notation for O2 fraction for any nitrox, while slash notation is reserved for helium. "EANx" is a concise, unambiguous expression meaning N2 = 100-x. eg 50/50 is heliox , 21/35 is trimix and EAN50 is nitrox. > 5) EANx has evolved as standard notation for O2 fraction for any > nitrox, while slash notation is reserved for helium. "EANx" is a > concise, unambiguous expression meaning N2 = 100-x. eg 50/50 is heliox > , 21/35 is trimix and EAN50 is nitrox. Uh huh. But seriously, has anyone tried making pure EANx, like mixing pure O2 and pure N2, without any of those pesky trace gases that likely cause cancer? I would pay good money for that. >> 5) EANx has evolved as standard notation for O2 fraction for any >> nitrox, while slash notation is reserved for helium. "EANx" is a [quoted text clipped - 6 lines] >pure N2, without any of those pesky trace gases that likely cause cancer? I >would pay good money for that. There's a shop in the Dallas area that uses DNx, which uses osmosis to remove the N2. As a result, they can just dial up a mix. The N2 is normally just vented to the atmosphere, but I suggested that they bottle it and sell it to the road racers that like to use nitrogen in their tires. The only problem with the system is that it requires 5000 psi to work properly. Signaturedillon If you can't figure out how to unmunge my address, email me and I'll explain it. >>At this moment we are looking for people who would like to join us on a >>historical wreck tour in Malaysia March, April and May 2007 [quoted text clipped - 19 lines] > > You dive below 30 meters on nitrox? All the time. Did it yesterday. LD. |
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