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Post by spirou on Oct 28, 2022 8:30:54 GMT -8
I post few photos of the second stage it is a simple down stream valve. The same as the calypso of this period.  IMG_6548 by Frédéric Callebaut, sur Flickr |
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Post by vance on Oct 28, 2022 9:00:38 GMT -8
Cool. I never saw the inside of one. It uses the Calypso main diaphragm?
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Post by spirou on Oct 28, 2022 9:02:50 GMT -8
The first stage is the mechanics of the Titan (another one) from aqualung, not a bad horse. Aqualung would celebrate the 50 years birthday of the Mistral, and present a double hose. First they thought of using a commercial version of the Mentor but the Mentor failed passing the restrictive EN 250 for the européen market. Aqualung decided to find another way.
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Post by spirou on Oct 28, 2022 9:04:59 GMT -8
Cool. I never saw the inside of one. It uses the Calypso main diaphragm? Yes the same for legend titan and Mistral and calypso so for the pieces it is easy too find |
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Post by spirou on Oct 28, 2022 9:06:12 GMT -8
Phil do you receive the spiro filed
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Post by spirou on Oct 28, 2022 9:29:33 GMT -8
Sorry about the diaphragm same part number 125705 for the Mistral and calypso but different for legend and titan lx part number 129150
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Post by nikeajax on Oct 28, 2022 11:05:31 GMT -8
Salut Spirou, vous pouvez essayer d'utiliser Google Traduction : écrivez-le en français puis exécutez-le dans la traduction. Cela aide à inverser la traduction pour que vous obteniez les mots corrects…  Hi Spirou, you may want to try using Google Translate: write it in French then run it through the translator. It helps to reverse the translation so that you get the correct words…translate.google.com/?hl=en&tab=TTJ'apprécie vraiment l'effort que vous faites pour vous impliquer sur notre forum : je sais que cela peut être difficile, alors merci monsieur!
I really appreciate the effort you make to get involved on our forum: I know it can be difficult, so thank you sir!Jaybird |
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Post by antique diver on Oct 28, 2022 11:19:10 GMT -8
It seems like that small diaphragm and short lever could really affect the breathing effort.
I can only assume someone must have tried adjusting the intermediate pressure upwards. I wonder if anyone has tried a softer spring to see if it could still hold back the IP? I would like to see some juggling with spring and IP before writing off the reg.
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Post by SeaRat on Oct 28, 2022 11:23:09 GMT -8
Salut Spirou, vous pouvez essayer d'utiliser Google Traduction : écrivez-le en français puis exécutez-le dans la traduction. Cela aide à inverser la traduction pour que vous obteniez les mots corrects… Hi Spirou, you may want to try using Google Translate: write it in French then run it through the translator. It helps to reverse the translation so that you get the correct words…translate.google.com/?hl=en&tab=TTJ'apprécie vraiment l'effort que vous faites pour vous impliquer sur notre forum : je sais que cela peut être difficile, alors merci monsieur!
I really appreciate the effort you make to get involved on our forum: I know it can be difficult, so thank you sir!Jaybird JB, I've changed a few things, but Google Translate has some real limitations when discussing technical matters. I'd rather he simply do his best with the English, and we clean up what is needed. Now, having looked at the the interior of the New Mistral, it appears that the orifice is not directed toward the intake horn, but rather at the bottom of the case. Would it be possible to place a Mistral (old style) orifice bent to point directly down the intake horn? John |
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Post by nikeajax on Oct 28, 2022 12:35:31 GMT -8
...Google Translate has some real limitations when discussing technical matters. I'd rather he simply do his best with the English, and we clean up what is needed... John Selon le cas, cela pourrait l'aider à mieux articuler ses idées, sans oublier qu'il pourrait apprendre quelque chose de son utilisation. As the case my be: it might help him to be more articulate in getting his ideas across to us, not to mention he may learn something from its usage.JB |
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Post by vance on Oct 28, 2022 14:37:47 GMT -8
I think Fred is doing fine, and appreciate that he's willing to post here in a foreign (to him) language. He is reporting on diving equipment that is very interesting and out of the ordinary.
This is no criticism on anyone, but as a hesitant speaker of Spanish, my perspective is that Fred would probably prefer it to not be a big deal. We don't want him to stop posting!
This thread is about the new Mistral, so let's get back to it!
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Post by vance on Oct 28, 2022 14:50:48 GMT -8
It seems like that small diaphragm and short lever could really affect the breathing effort. I can only assume someone must have tried adjusting the intermediate pressure upwards. I wonder if anyone has tried a softer spring to see if it could still hold back the IP? I would like to see some juggling with spring and IP before writing off the reg. I have always wondered about this. The small diaphragm and short levers work very well in single hose regulators, so why not DH regs? We've seen how the Trieste, with its tiny boxes, can perform very well with the right jets and a good diaphragm design. The good Trieste diaphragm and levers are as small and short as a single hose second stage uses. I am also curious about why the new Mistral is a dog. I've made an SH to DH conversion on the same principle as the Mistral 2, and it breathes very well. Having a remote or separate first stage connected to a second stage via a tube or hose isn't a recipe for failure. There must be some other reason why the Mistral 2 doesn't deliver. However, I'm not going to pay the freight necessary to find out. Yet. |
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Post by vance on Oct 28, 2022 15:21:06 GMT -8
Phil do you receive the spiro filed PM sent. |
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Post by vance on Oct 28, 2022 15:22:22 GMT -8
The first stage is the mechanics of the Titan (another one) from aqualung, not a bad horse. Aqualung would celebrate tue 50 years birthday of the Mistral, and present a double hose. First they thought of using a commercial version of the Mentor but the Mentor failed passing the restrictive EN 250 for the européen market. Aqualung decided to find another way. Too bad they didn't produce the Mentor. It looks like a great DH reg! The Mistral was a fail. |
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Post by vance on Oct 28, 2022 15:33:34 GMT -8
The first stage is the mechanics of the Titan (another one) from aqualung, not a bad horse. Aqualung would celebrate tue 50 years birthday of the Mistral, and present a double hose. First they thought of using a commercial version of the Mentor but the Mentor failed passing the restrictive EN 250 for the européen market. Aqualung decided to find another way. Why did the Mentor fail to pass EN 250? Did it also fail US standards? It could have had a market in the US, maybe? |
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