Nitrox specific questions

[Jonas Isaksen]

I do not have any tables or means to calculate the following:

PpO2 1,4 EAN25 max MOD 46 m (EAD 43 m)

What is the max time without deco?

How is the deco bullded up when going outside the non deco time?

Surface intervall and addition of minutes to the next dive?

I have been looking around for this, however not found any tables or formulas that could help me ?

 

[Dive-aholic]

That's because you're beyond recreational limits with those numbers. However, looking at my US Navy table, it looks like your NDL will be 10 minutes. SI and residual depend on what your next dive will be. You should have gotten this information in any training you've done. If you're not qualified to do this dive (by your question I'm guessing probably not), then don't do it. Get the training and the experience. Dive safe.

 

[Jonas Isaksen]

That's because you're beyond recreational limits with those numbers. However, looking at my US Navy table, it looks like your NDL will be 10 minutes. SI and residual depend on what your next dive will be. You should have gotten this information in any training you've done. If you're not qualified to do this dive (by your question I'm guessing probably not), then don't do it. Get the training and the experience. Dive safe.

To answer your question, yes I do have the standard nitrox course, however in my opinion it was not worth the money paid. With respect to advanced nitrox, it does not either cover this subject.

With repect to your mention about recreational diving, it is long time gone, ok now and then, most subjects of interest is between 35 and 50 m (which is my personal limit). I have done most of the dives on pure compressed air, but are now trying to extend my nitrox knowledge and utilize it either down to 46 or as deco on the way down/up and using air on the deepest part. A often used procedure here.

I am aware of that trimix would be better, and the IANDT is the first priority next year.

 

[Soggy]

Frankly, if you don't know the answer to the question you are asking, you are not qualified to do the dive.

 

[Jonas Isaksen]

Frankly, if you don't know the answer to the question you are asking, you are not qualified to do the dive.

Frankly, this kind of response does not show whether you know the answer or not

If you are able to, plz show me how

 

[cool_hardware52]

Frankly, this kind of response does not show whether you know the answer or not

If you are able to, plz show me how

This board is not (or should not be) an arena to display one's knowledge.

Soggy's displayed far more in his reponse, i.e. the "knowledge" to provide a safe, conservative answer.

No one here is obligated to help you hurt yourself.


Tobin

 

[Soggy]

Frankly, this kind of response does not show whether you know the answer or not

If you are able to, plz show me how

Well, you obviously know how to calculate EAD, so pull out your favorite table and look the NDL up. As for how deco builds up...that's the topic of books you should read and classes you should take before doing a 46 meter dive. If you already have the training, you should know the answers to the questions you are asking.

 

[ShoalDiverSA]

Frankly, if you don't know the answer to the question you are asking, you are not qualified to do the dive.

...
No one here is obligated to help you hurt yourself.

I could not agree more. I am alarmed to see more and more "confirmation" threads where people ask the group to "OK" their dive plans. There is no substitute for appropriate training for the type of dives that are being planned.

Cheers,

Andrew

 

[Jonas Isaksen]

Well, you obviously know how to calculate EAD, so pull out your favorite table and look the NDL up.

As for how deco builds up...that's the topic of books you should read and classes you should take before doing a 46 meter dive.

Just seen the light, should have thought of it, but it was to easy when one is digging one self into the toxic sides of the matter. Thank you and a happy cristmas to you all

Deep dive course, been there, done that

 

[Soggy]

Just seen the light, should have thought of it, but it was to easy when one is digging one self into the toxic sides of the matter. Thank you and a happy cristmas to you all

Deep dive course, been there, done that

Have fun, merry christmas, be safe.