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<div class="moz-cite-prefix">On 04-07-2015 15:30, Dirk Hohndel
wrote:<br>
</div>
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cite="mid:6426A100-FAA0-49E5-BE9B-57E435547DA1@hohndel.org"
type="cite">
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Could someone with access to different dive planning software
please run a few test plans for me?
<div class=""><br class="">
</div>
<div class="">Let's do the profile that Rick quoted from the VPM
documentation:</div>
<div class=""><br class="">
</div>
<div class="">three gases: 15/45, 36%, 100%</div>
<div class="">descent rate to bottom of 75ft/min down to 260ft
(weird... 208 seconds to the bottom...)</div>
<div class="">30 minutes bottom time (we can't do that it seems,
drop down to bottom is included in the first segment... so let's
say 33 minutes until end of bottom time)</div>
<div class="">ascent rate 30ft/min</div>
<div class="">10ft/min from the final stop (actually, Subsurface
can't do that, so 10ft/min from 20ft which will add a tiny 40
seconds from 20ft to 10ft)</div>
<div class=""><br class="">
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<br>
This is what I get with Decoplanner 3.1.3:<br>
<br>
(VPM-B, conservatism = 0, descent rate = 75ft/min, ascent rate = 30
ft/min)<br>
<br>
Depth Time O2 He Start End<br>
260 33 15 45 3 33<br>
180 1 15 45 35 36<br>
170 1 15 45 36 37<br>
160 1 15 45 37 38<br>
150 1 15 45 38 39<br>
140 2 15 45 39 41<br>
130 2 15 45 41 43<br>
120 3 15 45 43 46<br>
110 2 36 0 46 48<br>
100 2 36 0 48 50<br>
90 2 36 0 50 52<br>
80 3 36 0 52 55<br>
70 3 36 0 55 58<br>
60 5 36 0 58 63<br>
50 7 36 0 63 70<br>
40 8 36 0 70 78<br>
30 13 36 0 78 91<br>
20 14 100 0 91 105<br>
10 23 100 0 105 128<br>
0 129<br>
<br>
And this is the same dive with Buehlmann (GFLow=100 GFHigh=100)<br>
<br>
Depth Time O2 He Start End<br>
260 33 15 45 3 33<br>
110 1 36 0 38 39<br>
90 1 36 0 39 40<br>
80 2 36 0 40 42<br>
70 4 36 0 42 46<br>
60 4 36 0 46 50<br>
50 6 36 0 50 56<br>
40 8 36 0 56 64<br>
30 13 36 0 64 77<br>
20 14 100 0 77 91<br>
10 28 100 0 91 119<br>
0 120<br>
<br>
Cheers:<br>
<br>
Pedro<br>
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