Next step for longer bottom times on deep dives?

[doctormike]

British class system perpetuated even in diving...

Hereditary peers get to use GF 90/90, and are allowed to deduct one minute from their overall deco obligation for every 1000 acres of land their family owns...

They can accept gas from commoners in an emergency, but the reverse does not apply.

 

[100days-a-year]

Hereditary peers get to use GF 90/90, and are allowed to deduct one minute from their overall deco obligation for every 1000 acres of land their family owns...

They can accept gas from commoners in an emergency, but the reverse does not apply.

OMG, that is hilarious.
GF 90/90 wouldn't affect me much as its not far off from what I use.
But to get credit for decompression based on wealth likely ill gained sounds like more of a universal situation rather than strictly British

 

[Gareth J]

Since divers are trained for NDL, it's good that there is a bright line. At one time a diver was trIned to calculate emergency deco, but now they are just given a number instead.

.

But that is absolutely NOT TRUE.
At Sports Diver, the BSAC teaches Decompression Stop diving. It teaches how to calculate gas requirements, redundancy, and bailout gas requirements. Fundamental to any dive plan is the plan, a just deeper, a just longer, and a deeper and longer. The plan includes the decompression requirements and the gas requirements.

CMAS have similar elements in their training programs, at the equivalent level.

It is a peculiarity of American training organisation that they don't cover staged decompression, or the requirements to appropriately plan this type of diving.

 

[Angelo Farina]

Hopefully she either doesn’t read English or has no urge to peek on SB and use a browser translator to read SB in Italian.

My wife can read English quite well. But she is not on SB or other social media where I am active...
The point is that in our family both we are old and fat. No offense in this, it is just a fact...
Of course no one is happy being called old and fat, and my wife always complains when I remember her that we are not anymore the same as 40 years ago, when we met and started diving together...

 

[ChuckP]

"I'm untrained, with a decompression obligation, with as little as two hundred psi of gas in my primary cylinder [according to post history], and haven't verified that my pony is functional on this dive. I don't need more classes or gear."

Diving air while using a Peridix set at 50/80 and having 10 minutes of deco could show a surface GF of 89....... It's all relative - do I have deco or not?? The guy right beside me the whole dive didn't.....

Talking small amounts of deco here, 10 minutes or less.

 

[100days-a-year]

Diving air while using a Peridix set at 50/80 and having 10 minutes of deco could show a surface GF of 89....... It's all relative - do I have deco or not?? The guy right beside me the whole dive didn't.....

Talking small amounts of deco here, 10 minutes or less.

Excellent perspective!

On days diving within recreational depths with buddies diving Suuntos by the second dive there were noticeable differences in NDL on the computers. The shorter the SI and the more dives it became ridiculous. I would be at NDL or clear on the way up with an Oceanic or Orca and the Suunto divers would have 10 minutes to a half hour of deco by dive three or four. Diving exactly the same BT and SI. Of course, their computers saw a shorter SI and it compounded as the day went on. After a few trips side by side most bought different computers.
So what was NDL dive for one guy was a deco dive for another solely based on computer choice.

 

[Bob DBF]

But that is absolutely NOT TRUE.

If you had read the quote I was responding to, it was discussing training in the US in general. I don't believe there is a lot of BSAC and CMAS training taking place in the US, but I could be wrong.

 

[Wibble]

BSAC teach more that 15 min deco.
Advanced Mixed Gas open circuit to 80m
Advanced Mixed Gas CCR to 80m

Dives beyond these limits require the National Diving Office’s approval (for insurance purposes).

(Was referring to Sports Diver's deco limit - not the tech courses)

Excellent perspective!

On days diving within recreational depths with buddies diving Suuntos by the second dive there were noticeable differences in NDL on the computers. The shorter the SI and the more dives it became ridiculous. I would be at NDL or clear on the way up with an Oceanic or Orca and the Suunto divers would have 10 minutes to a half hour of deco by dive three or four. Diving exactly the same BT and SI. Of course, their computers saw a shorter SI and it compounded as the day went on. After a few trips side by side most bought different computers.
So what was NDL dive for one guy was a deco dive for another solely based on computer choice.

Easiest way of determining tech vs recreational... if diving with a Suunto, they're recreational.

 

[Edward3c]

BSAC teach more that 15 min deco.
Advanced Mixed Gas open circuit to 80m
Advanced Mixed Gas CCR to 80m

Dives beyond these limits require the National Diving Office’s approval (for insurance purposes).

(Was referring to Sports Diver's deco limit - not the tech courses)


Easiest way of determining tech vs recreational... if diving with a Suunto, they're recreational.

The courses quoted are for Sports Divers and above.

 

[Wibble]

The courses quoted are for Sports Divers and above.

Does BSAC Sports Diver allow you to do 15 mins of backgas deco, or is that wrong?