That is to prevent you from doing something really stupid.. like trying it first. I heard from an instructor of quite a few students showing up for first day of training with WET REBREATHERS!!!
can i buy ccr without course?
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Agro
Contributor
Some rebreathers are made as hobby project and you can buy them without any course. There is also no unit specific course for such units. I have dived 1 of such machines and wow, I am still alive. But ok, I am already a certified ccr diver.
If you understand the principles of ccr diving, it is no rocket science. This means that if you have done a course, the second unit is 'just' a crossover. And that is why there are 'just' crossovers if you buy another unit.
But what I see as instructor is that a lot of divers not really understand the principles of ccr diving. Some intelligence, knowledge of physics makes it a lot easier, this combined with talent in ccr diving is needed to make ccr diving 'easy'. If you don't have this, you need to practise a lot and need to learn and relearn about the physics. Making hours on a ccr is important.
So are you an talented and intelligent diver, ccr diving is not that hard, and maybe can be learned with trial and error. But there will also be sometimes an extra accident that would not happen with doing a course. The theory about PO2, scrubber functionality, packing a scrubber, etc can be found in books, youtube videos, etc. Bouyancy is talent and knowledge of physics. The required skills can be found online and there videos about how to do these skills. Preparing a unit can or be found in books or manuals and every unit has some same principles like the positive, negative test, flappervalve test, etc that must be done and is for every unit the same. So the talented and intelligent diver will maybe see a ccr as preparing your single tank with bcd and regulator for the first dive. And learning the bouyancy will not be hard for them. But a mistake is made easy, and is made easier without a course than with doing it and learn at least something from an instructor.
But a lot of divers need to prepare equipment more than once with an experienced diver or instructor to get confident with it. I have had students who needed help to prepare their inspiration for several dives, or they are so unsure that they wanted an extra pair of eyes, or they really forgot things. But you also have open water students who finally can prepare their equipment after several tries, but are forgotten it again 1 week later after finishing their course. If you are a ccr diver and forget things, this can cause easier an accident than with an easy single tank open water dive.
If you are interested in ccr diving, I would advice you to do a course, and not try it yourself. So even if you can buy a unit without course, I would not advice to do it.
And if you have 1000ends of hours on ccr and have dived different units, then probably the next crossover is a pay as the crossover itself is not an really learning traject anymore. But before this is the case you have got a lot of experience in ccr diving.
And then you also can decide of homemade or hobby-made units will work for you and are safe enough for you. And then you know if a unit without a cert will work for you. But you have at least 1 ccr cert before you switch to a unit that has no courses on it.
If you understand the principles of ccr diving, it is no rocket science. This means that if you have done a course, the second unit is 'just' a crossover. And that is why there are 'just' crossovers if you buy another unit.
But what I see as instructor is that a lot of divers not really understand the principles of ccr diving. Some intelligence, knowledge of physics makes it a lot easier, this combined with talent in ccr diving is needed to make ccr diving 'easy'. If you don't have this, you need to practise a lot and need to learn and relearn about the physics. Making hours on a ccr is important.
So are you an talented and intelligent diver, ccr diving is not that hard, and maybe can be learned with trial and error. But there will also be sometimes an extra accident that would not happen with doing a course. The theory about PO2, scrubber functionality, packing a scrubber, etc can be found in books, youtube videos, etc. Bouyancy is talent and knowledge of physics. The required skills can be found online and there videos about how to do these skills. Preparing a unit can or be found in books or manuals and every unit has some same principles like the positive, negative test, flappervalve test, etc that must be done and is for every unit the same. So the talented and intelligent diver will maybe see a ccr as preparing your single tank with bcd and regulator for the first dive. And learning the bouyancy will not be hard for them. But a mistake is made easy, and is made easier without a course than with doing it and learn at least something from an instructor.
But a lot of divers need to prepare equipment more than once with an experienced diver or instructor to get confident with it. I have had students who needed help to prepare their inspiration for several dives, or they are so unsure that they wanted an extra pair of eyes, or they really forgot things. But you also have open water students who finally can prepare their equipment after several tries, but are forgotten it again 1 week later after finishing their course. If you are a ccr diver and forget things, this can cause easier an accident than with an easy single tank open water dive.
If you are interested in ccr diving, I would advice you to do a course, and not try it yourself. So even if you can buy a unit without course, I would not advice to do it.
And if you have 1000ends of hours on ccr and have dived different units, then probably the next crossover is a pay as the crossover itself is not an really learning traject anymore. But before this is the case you have got a lot of experience in ccr diving.
And then you also can decide of homemade or hobby-made units will work for you and are safe enough for you. And then you know if a unit without a cert will work for you. But you have at least 1 ccr cert before you switch to a unit that has no courses on it.
A reputable car dealer checks for driver's license and proof of insurance before giving you the keys.
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Because you can't get insured without a license and insurance is mandatory
broncobowsher
Contributor
More like not wanting to get sued.
As for a Parachute, I have been given one to wear with the instructions "If something goes wrong, it's just like you saw in Saturday morning cartoons."
Shortly after we were doing loops, rolls, and even a flat spin.
Our motto was... "If something goes wrong....no worries.... because you got the whole rest of of your life to figure it out!"
We even had bumper stickers that said......
"Antioch Parachute Center: We're Giving Bombs a Good Name!"
CG43
Contributor
Hello
He said the latter was mostly true.
Then we went diving. I with my self-built O2 rebreather and he with his SCR.
At 12 m depth I had to show him explicitly that I did not want to dive deeper .
He knew that I was diving with 100% O2 and he will be able to calculate the PO2 for 12 m depth
because he has learned that once.
But he does not do this automatically because he does not think physically.
His SCR has three nozzles for different max. depths and he is used to dive and teach this system .
Ok then it just needs a course for this rebreather .
At a rebreather meeting, I asked a rebreather instructor if his students understand what rebreather diving is all about or if most of them are just learning cooking recipes for a special tebreather.
He said the latter was mostly true.
Then we went diving. I with my self-built O2 rebreather and he with his SCR.
At 12 m depth I had to show him explicitly that I did not want to dive deeper .
He knew that I was diving with 100% O2 and he will be able to calculate the PO2 for 12 m depth
because he has learned that once.
But he does not do this automatically because he does not think physically.
His SCR has three nozzles for different max. depths and he is used to dive and teach this system .
Ok then it just needs a course for this rebreather .
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