More planner weirdness

[Dirk Hohndel]

Chris Lewis <chrislewis915 at gmail.com> writes:

> I've been playing with the planner again, now I'm not a technical diver but
> have done small amounts of deco on single mix air and nitrox dives.
>
> I made the following plan.
>
> Subsurface dive plan
> based on GFlow = 30 and GFhigh = 75
>
> Transition to 30 m in 3:00 min - runtime 3:00 on (18/45)
> Stay at 30 m for 25:00 min - runtime 28:00 on (18/45)
> Transition to 9.0 m in 2:20 min - runtime 30:20 on (18/45)
> Stay at 9.0 m for 2:00 min - runtime 32:20 on (18/45)
> Transition to 6.0 m in 0:20 min - runtime 32:40 on (18/45)
> Switch gas to EAN100
> Stay at 6.0 m for 5:00 min - runtime 37:40 on EAN100
> Transition to 3.0 m in 0:20 min - runtime 38:00 on EAN100
> Stay at 3.0 m for 1:00 min - runtime 39:00 on EAN100
> Transition to 0.0 m in 0:20 min - runtime 39:20 on EAN100
> Stay at 0.0 m for 0:00 min - runtime 39:20 on EAN100
> Gas consumption:
> 2390l of (18/45)
> 178l of EAN100
>
> Now to be honest i have no idea whether that profile is correct or not but
> the ascent rates in the deco phase certainly look sporty to me!
>
> Both transitions from 6 to 3 and 3 to surface happen in 20 seconds,  To get
> this i specified the descent rate and gas, a constant depth on 18/45 and
> then just a 6m 100% with no time.
>
> Should there be a maximum ascent rate setting or even something hard coded?

There is a fixed rate of 30ft/min (9m/min) hardcoded right now. That's
what some other software that I looked had assumed and what was
discussed in my tec classes. Definitely something we could make
configurable in 3.1 - but I think we'll leave it as is for now.

Could you enter this as a feature request post 3.0 in trac.hohndel.org
so it doesn't get forgotten?

> p.s. if you want me to stop playing until 3.0 is out just say so :)

No! I WANT you to play with this and find bugs or raise questions like
this one. That's what I am asking EVERYONE here to do. By all means,
keep poking!

/D