Quote:
| Originally Posted by vid thanks mark, the maths makes sense...
having searched the web, i still haven't found much more on the ratio deco - presume it's covered in some of the later technical moducles of some training organisations?
vid |
Hi
Its just a rule of thumb for working out a rough deco plan.
The idea is that, as you get used to doing similar dives over and over, that you get an idea of the deco you need to do. Added to that some small adjustments to take advantage of higher po2's in certain parts of the deco, you end up with a deco schedule.
It only works in a relatively small range of dives, and really only useful, in the form it is taught, to use with standard deco gasses, so you can't use it in the popular nonDIR '32%/80%' deco gas configuration.
You learn it in Tech1, which is only one step away from DIRF, so its at the beginner level really.
Andy