dive plans for testing

Rick Walsh rickmwalsh at gmail.com
Sat Jul 4 07:39:06 PDT 2015


Hi Dirk,

In playing with imperial units, I've come across a unit conversion +
rounding bug.  And you have too.

On 5 July 2015 at 00:30, Dirk Hohndel <dirk at hohndel.org> wrote:

> Subsurface dive plan
> based on GFlow = 100 and GFhigh = 100
>
>
>  depth
> runtime
> duration
> gas
>  260ft
> 3min
> 3min
> (15/45)
>  260ft
> 33min
> 30min
>
>
>  100ft
> 39min
> 6min
> EAN38
>  89ft
> 41min
> 2min
>
>
>  79ft
> 44min
> 2min
>
>
>  69ft
> 47min
> 3min
>
>
>  59ft
> 51min
> 4min
>
>
>  49ft
> 58min
> 6min
>
>
>  39ft
> 66min
> 8min
>
>
>  30ft
> 80min
> 14min
>
>
>  20ft
> 100min
> 19min
>
>
>  10ft
> 102min
> 2min
>  10ft
> 128min
> 26min
> oxygen
>  0ft
> 129min
> 1min
>
>
>
> We calculate the MOD of oxygen as 10ft, rather than 20ft.  Using metres,
we correctly calculate 6m.  Perhaps the simplest fix would be changing the
default max pO2 to 1.61, otherwise we could relax the MOD calc.

In any case, for comparing calculated imperial profiles, we should make
sure we set the MOD of oxygen to 20ft.
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