Efka76
Contributor
PADI AOW can be obtained after receiving OW certification + 5 adventure dives. BSAC Advanced diver is higher certification than BSAC Dive lead (equivalent of PADI Divemaster). These are even not comparable certifications.
AOW before Tech?
- Thread starter jtsfour
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PADI AOW can be obtained after receiving OW certification + 5 adventure dives. BSAC Advanced diver is higher certification than BSAC Dive lead (equivalent of PADI Divemaster). These are even not comparable certifications.
CMAS 3* is a divemaster cert for rec diving within NDL on a single tank to 60m (or with new standards PO2 of 1.4, so 57m).
The cmas 2* is an advanced open water cert to 40m.
The cmas 2* is an advanced open water cert to 40m.
This always puzzles me. Because CMAS standards very clearly state it qualifies to conduct staged decompression diving.
4.2 A CMAS Three Star Diver is qualified:
4.2.1 To carry out a risk assessment on a suggested dive location and conditions and to determine its safety:
4.2.2 To conduct any sport diving activities including Stage Stop decompression diving;
Source:
Three Star Diver Training Programme
standards pdf.
What does that really mean?
This is in the standards (when I did my 3* it was 60m):
This training programme aims at introducing the fundamentals of dive leadership to experienced certified CMAS Two Star Divers, which will enable them to plan, organise and conduct their dives and lead other sport divers in open water, to a maximum recommended depth of PpO2=1,4b + deep national regulation, meters in a safe and competent manner.
The question is of course, what is safe? But if you look at accident numbers in France where it is normal to dive on a 15 liter tank to 60m, it seems to be quite safe. I don't do such depths single tank and without decogases and I don't stay withing NDL. But I am not only in CMAS. I do trimixdiving also. Single tank to such depths is notdone in my eyes, I don't call it safe. But a lot of divers do.
A lot of countries don't have a national regulation, so then it is the 57 of 60m. Like in my country, but we don't have water deeper than 50m.
CMAS is an organisation that has a lot of local licencees. They have to follow the cmas standards, but sometimes things are different. In my country, 3* is NO DECO, and never goes deeper than 30m, but you get a CMAS 3* cert with the CMAS logo (Nymph), so it is the 60m. you can do here a 2* (aow) and never dove deeper than 20m. I will never sign such divers off as this is ********, if you don't want to dive deeper than 20m, stay open water diver/1*. And you get a 40m cert as it is an international cert.
There is another 'rule': 4.2.3 To conduct any specialised sport diving activities for which he has received appropriate training;
What is appropriate training? You can allways say I have, as training only means you did trainingdives, there is not said you need a cert or did it with instructor. And then you are allowed to do. This is cmas also.
Another way to skip the deep diver cert is not only by getting a cmas 2* cert (go from open water to cmas2*), you can also do: ow, aow, cavern, intro to cave. Intro to cave is most times a 39/40m cert. Even if you never went to such depths. But then a deep diver is not needed anymore.
This training programme aims at introducing the fundamentals of dive leadership to experienced certified CMAS Two Star Divers, which will enable them to plan, organise and conduct their dives and lead other sport divers in open water, to a maximum recommended depth of PpO2=1,4b + deep national regulation, meters in a safe and competent manner.
The question is of course, what is safe? But if you look at accident numbers in France where it is normal to dive on a 15 liter tank to 60m, it seems to be quite safe. I don't do such depths single tank and without decogases and I don't stay withing NDL. But I am not only in CMAS. I do trimixdiving also. Single tank to such depths is notdone in my eyes, I don't call it safe. But a lot of divers do.
A lot of countries don't have a national regulation, so then it is the 57 of 60m. Like in my country, but we don't have water deeper than 50m.
CMAS is an organisation that has a lot of local licencees. They have to follow the cmas standards, but sometimes things are different. In my country, 3* is NO DECO, and never goes deeper than 30m, but you get a CMAS 3* cert with the CMAS logo (Nymph), so it is the 60m. you can do here a 2* (aow) and never dove deeper than 20m. I will never sign such divers off as this is ********, if you don't want to dive deeper than 20m, stay open water diver/1*. And you get a 40m cert as it is an international cert.
There is another 'rule': 4.2.3 To conduct any specialised sport diving activities for which he has received appropriate training;
What is appropriate training? You can allways say I have, as training only means you did trainingdives, there is not said you need a cert or did it with instructor. And then you are allowed to do. This is cmas also.
Another way to skip the deep diver cert is not only by getting a cmas 2* cert (go from open water to cmas2*), you can also do: ow, aow, cavern, intro to cave. Intro to cave is most times a 39/40m cert. Even if you never went to such depths. But then a deep diver is not needed anymore.
We have here the cmas specialty decompressiondiving, done on a single tank and without decogas. So useless in my eyes. I would say do an advanced nitrox course then from a real tech agency. Cmas here has also adv. nitrox, but with a max PO2 of 1.4, so strange and useless also.
Here they say it is a 30m cert, but we get an internationally recognised cert with the Nymph, so it is really the 60m or the 1.4PO2 (57m).
The problem is that every cmas licencee has a lot of freedoms within cmas. But at the end we all get a cert that holds the international standards. And I like the 60m idea, as I sometimes dive in France and then never have discussions. Sometimes they don't recognise IANTD certs
France has a history of air diving to depths over 60m. And you still see this back in cmas.
Some cmas licencees have a tech part. In my country not. Even some cmas licencees teach cave.
Cmas has a different structure than other agencies.
Iso only states a minimum of requirements and not all requierments that can differ from agency to agency.
Here they say it is a 30m cert, but we get an internationally recognised cert with the Nymph, so it is really the 60m or the 1.4PO2 (57m).
The problem is that every cmas licencee has a lot of freedoms within cmas. But at the end we all get a cert that holds the international standards. And I like the 60m idea, as I sometimes dive in France and then never have discussions. Sometimes they don't recognise IANTD certs
France has a history of air diving to depths over 60m. And you still see this back in cmas.
Some cmas licencees have a tech part. In my country not. Even some cmas licencees teach cave.
Cmas has a different structure than other agencies.
Iso only states a minimum of requirements and not all requierments that can differ from agency to agency.
Stoo
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There is nothing inherently "dangerous" about decompression diving when it's done properly...
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