| Learning the Way Up |
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This planning tool is to help you develop the skill to calculate your
stop on any conventional dive, lets say anything with a set of doubles
and even a bottom stage,
also dives within the commonly called minimum deco
The stops are chosen along a curve define from avoiding to large
bubbles forming that could block blood flow creating DCS, to increase
max de-saturation without going into effective saturation.
In other words max speed up should not exceed 10mt/minute, or 20
second per stop (each 3mt) BTW slower than that demands
exceptional buoyancy control, as in to stay put at same depth for
amount of time needed. plus/less 1 mt is consider OK, but not perfect.
Now the standard unit of compression is 5 minutes, due to been within
the fastest tissue in absorb and also eliminate gas, however in
Haldane models this controls the saturation (absorption phase)
usually the slowest tissue control de-saturation, this is called a slave
model, which in Buhllman is mutant to controller tissues (either way)
and in VPM call also for differential in gas and dissolve phases.
Practically the stops must be between 20 sec and 5 minutes
split your ascent and allow longer times as you go up, increase time
on longer and/or demanding dives thin out on warm short dives.
Stops should start deep to allow immune system help take care of the
invader inert gas before it expands and create tissue damage which
will make it longer to be eliminated.
But not to long that you are actually on gassing and running low on
diving gas at depth.
So in happy medium we split the ascent in 4 steps as follows :
1. 80% depth 20sec to 5minute
2. 65% depth 1 minute to 5 minutes
3. 45%depth 3 minute to 5 minutes
4. 25%depth 5 minutes
so if you dive 30mt
1st stop is at 80% of pata (total atm)
=22mt round to 21 in small dive round to 24 in bigger
20 seconds there till 65%
=16 so 15 or 18
1minute stops till 45 %
= 8 so 9 or 12
3 minutes stop till 25 %
then basically is 6mt for 5minutes
and as we do O2 time all at 1.6PO2
the 3mt stops should not need more than 3 minutes
Aggressive will be 20sec stops to the surface in NDL dives, faster than
that you not only risk DCS but as well Barotraumas.
There is no point in signing for Tech Training until you can do this
every time, as also we wil ad one more step to the range.
Based on personal talks with George Irvine.
stop on any conventional dive, lets say anything with a set of doubles
and even a bottom stage,
also dives within the commonly called minimum deco
The stops are chosen along a curve define from avoiding to large
bubbles forming that could block blood flow creating DCS, to increase
max de-saturation without going into effective saturation.
In other words max speed up should not exceed 10mt/minute, or 20
second per stop (each 3mt) BTW slower than that demands
exceptional buoyancy control, as in to stay put at same depth for
amount of time needed. plus/less 1 mt is consider OK, but not perfect.
Now the standard unit of compression is 5 minutes, due to been within
the fastest tissue in absorb and also eliminate gas, however in
Haldane models this controls the saturation (absorption phase)
usually the slowest tissue control de-saturation, this is called a slave
model, which in Buhllman is mutant to controller tissues (either way)
and in VPM call also for differential in gas and dissolve phases.
Practically the stops must be between 20 sec and 5 minutes
split your ascent and allow longer times as you go up, increase time
on longer and/or demanding dives thin out on warm short dives.
Stops should start deep to allow immune system help take care of the
invader inert gas before it expands and create tissue damage which
will make it longer to be eliminated.
But not to long that you are actually on gassing and running low on
diving gas at depth.
So in happy medium we split the ascent in 4 steps as follows :
1. 80% depth 20sec to 5minute
2. 65% depth 1 minute to 5 minutes
3. 45%depth 3 minute to 5 minutes
4. 25%depth 5 minutes
so if you dive 30mt
1st stop is at 80% of pata (total atm)
=22mt round to 21 in small dive round to 24 in bigger
20 seconds there till 65%
=16 so 15 or 18
1minute stops till 45 %
= 8 so 9 or 12
3 minutes stop till 25 %
then basically is 6mt for 5minutes
and as we do O2 time all at 1.6PO2
the 3mt stops should not need more than 3 minutes
Aggressive will be 20sec stops to the surface in NDL dives, faster than
that you not only risk DCS but as well Barotraumas.
There is no point in signing for Tech Training until you can do this
every time, as also we wil ad one more step to the range.
Based on personal talks with George Irvine.
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