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Post by diver62703 on Jun 24, 2003 21:53:00 GMT -8
Does anyone knowanything about a twin hose reg that was made of blue plastic? There is no name or info on reg. I would guess Voit but have no idea. Thanks.
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Post by Terry on Jun 25, 2003 19:30:27 GMT -8
The reg that you are referring to is the Voit V55 50 Fathom. This reg is internally the same as the U. S. Divers JetAir which had a black plastic case, and the Voit 50 Fathom had the blue plastic case. Take a look at the regulator study of labels that Dan has on this website; you'll be able to click on it on the Vintage Scuba Supply homepage. Hope this is of some help, and safe diving to you! Terry Stevens
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Post by Broxton Carol on Mar 17, 2006 4:30:03 GMT -8
I had a plastic, and regular metal can version of the 50 fathom. The plastic one had the early jet air/ mistral mechanism in it. The metal one had an oddball downstream valve set up. I never did it going right. I put in a late mistral assy, and it worked like a million!!! Deep Dennis of Tampa, swapped around the mech in his 50 fathom, and tested it at blue spring years ago. He showed me how easy it is to do. The function really improved. Dennis was the inventor of this idea, as well as the adaptor for taking LP air off an aquamaster hookah port, to feed an auxiliary regulator. Dennis also tested this at blue spring.  |
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Post by SeaRat on Mar 17, 2006 16:46:58 GMT -8
The Blue 50 Fathom in a plastic housing usually has that downstream single stage mechanism. It is actually a very nice system, but breaths slightly easier on a full tank than towards empty. It was designed by Emile Gagnan, and his patent has a reserve mechanism built into it. But Voit, when they implemented this design, messed it up a bit. This regulator breaths best when the large venturi hole is pointed directly down the intake hose, and the small hole is used to fill the rest of the case. But Voit, probably to keep their two stage designs going, pointed the small hole down the intake hose, which makes this regulator a fairly poor breathing one. To vastly improve the performance, point the large hole down the intake hose. You'll have to not use the pin that sets the direction of the regulator in the housing though. We've discussed this thoroughly on a different, much earlier, thread that you should be able to get to by a search. Anyway, I have the downstream mechanism in a Mistral box, and it works wonderfully this way.
John
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Post by kgehring on Mar 17, 2006 19:25:55 GMT -8
There were 3 different labels for that regulator.
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Post by Broxton Carol on Mar 18, 2006 3:39:36 GMT -8
If anybody wants, Ill draw another label then there will be four. And if that isnt enought Ill do another one and then there will be five! Get smart guys. If you dont need it, dont buy it. How many can you dive at sand dog 111? You tend to drift to the habits of a gambler, smoker, or alcaholic. Impulse is a thing that needs to be controlled. I got hooked on buying all this junk several years ago. I had 30 dam regs, but when It hit me how futile the situation was, I sold them all except for my 3 favorites, which I dive, and enjoy. If you think you need it, you dont. Nobody cares. keep your money, eat sand dogs, dive and be happy, cause when you kick off, you loose it all.  |
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Post by Deleted on Mar 18, 2006 8:28:34 GMT -8
[quote author=searat But Voit, probably to keep their two stage designs going, pointed the small hole down the intake hose, which makes this regulator a fairly poor breathing one.
John
Your statement above might probably might be true, several others have also said similar things on other threads about this reg and other units, however, it makes no business sense to deliberately market something to fail.
To develop any product, takes design, research and more design, production, packaging and marketing and selling
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All those steps combined are expensive. If a business deliberately built their product to fail they'd be out of business in a heart beat........or that business director or production director would be looking for another job post haste............
I'd bet, the assembly was either poor quality control in production or the blueprints or instructions for assembly in the production line were drawn incorrectly.
Either way, no one caught or discovered this error and that reg was not successful.........I can not, from a business sense, believe Voit deliberately chose to fail this reg in the marketplace.
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Post by SeaRat on Mar 18, 2006 12:43:22 GMT -8
Mossback,
I know it sounds illogical. The VCR-2 50 Fathom was produced from 1959-1961. Now consider these points:
--Voit had a low-priced, budget regulator that could potentially outperform it's higher-priced, two-stage model (the V-66 Navy model, essentially a Voit version of the DA Aqualung).
--The low-priced regulator breathed much easier than the higher-priced one.
--With only 5 moving parts, and a seat which lasts half a century, there would be no huge maintenance charges with good care.
The 1959 article on this regulator in SDM stated that the small hole goes down the intake hose (this is from memory, but I'm pretty sure of this). We do know that there were quality control issues with this reg too, as there were non-stainless parts put into some of them (from a thread on Scubaboard). At times, the neither hole was pointed down the intake, and this is either deliberate or some really, really poor quality control. Knowing what I now know about marketing people, I tend to lean towards a conscious decision.
No matter the cause, this regulator never made its potential from an engineering perspective, and it was a very easy fix.
John
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