[PATCH] MOD of oxygen at pO2 of 1.6 is 20ft

[Dirk Hohndel]

On Sun, Jul 05, 2015 at 03:19:52PM -0700, Linus Torvalds wrote:
> On Sun, Jul 5, 2015 at 2:55 PM, Pedro Neves <nevesdiver at gmail.com> wrote:
> >> But do metric divers really prefer "21m/24m" to "20m/25m"?
> >
> > I sure do...
> > .. but maybe that's just me...
> 
> The metric  PADI tables do something odd, and go in two-meter
> increments from 10m to 22m, and then they switch to 5m increments
> (well, except for that least entry, which is at 42m).
> 
> I'd guess that tech divers don't care too much about the PADI
> recreational tables, but presumably a lot of divers learnt to dive
> that way.
> 
> Trying to find any metric dive plans with google and failing pretty
> badly. But the V-Planner FAQ seems to have examples that seem to be
> more along the lines of a mixture of  "round metric numbers, except at
> the shallower end".
> 
> So it looks like there's not much of a real rule. I guess 3m is as
> good as anything.

My understanding is that the whole 3m thing is indeed a left over from the
US 10ft based tables. And that apparently a few organizations in Europe
have tried to switch to multiples of 5m but have pretty much given up.

I suggest we stay with the 3m multiples until we have complaints (and
someone shows us a schema that we can implement...)

/D