Hi All,
@Rick: Your guess is right: Oberflächenpause is surface interval.
In V-Planner I already tested several variant of surface interval: Above
3h surface time the result stays the same, including your request of
single dive calculation.
My first impression: It looks like V-planner doing the expected result,
just the algebraic sign (+/-) is inverted.
When I compare in V-Planner this diving profile: VPM-B vs. VPM-B/E, the
effect for both is the same, just quite small different in the sum.
VPM-B/E gives a little bit les “bonus”.
--
Grüße Klaus Künsemüller
Ob den Weingärten 2
71735 Eberdingen
015253425252
Am 09.02.2017 um 23:00 schrieb Rick Walsh:
On 10 February 2017 at 07:50, Stefan Fuchs <[email protected]
<mailto:[email protected]>> wrote:
3. Then for the second, much simpler dive I am surprised that the
results are different! I planned this very simple dive then
"standalone" in both tools -> still the same difference. VPlanner
gives you shorter deco and I really have doubts if I did s.th
<http://s.th>. wrong but I can't figure out what.
Subsurface Tauchplan
Runtime: 55min
Tiefe
Dauer
Laufzeit
Gas
➘
40m
4min
4min
Luft
➙
40m
16min
20min
-
15m
6min
26min
-
12m
3min
29min
-
9m
4min
33min
-
6m
7min
40min
-
3m
12min
52min
➚
0m
3min
55min
CND: 9%
OTU: 24
Deco model: VPM-B at +2 conservatism, effektive GF=27/66
ATM pressure: 1013mbar (0m)
V-Planner 3,98 by Ross Hemingway,
VPM Code by Erik C. Baker.
Dekompressionsmodell: VPM - B
TAUCHPLAN
Oberflächenpause = 5 Tag(e) 0 hr 0 min.
Höhe über N. N. = 0m
Konservatismus = + 2
Abst. 40m (4) Air 10m/min Abstieg
Tiefe 40m 16:00 (20) Air 1,02 ppO2, 40m ead
Aufst. 18m (22) Air -10m/min Aufstieg
Stop 18m 0:48 (23) Air 0,58 ppO2, 18m ead
Stop 15m 2:00 (25) Air 0,51 ppO2, 15m ead
Stop 12m 3:00 (28) Air 0,45 ppO2, 12m ead
Stop 9m 3:00 (31) Air 0,39 ppO2, 9m ead
Stop 6m 7:00 (38) Air 0,33 ppO2, 6m ead
Stop 3m 10:00 (48) Air 0,27 ppO2, 3m ead
Oberfl. (51) Air -1m/min Aufstieg
Ausgasung beginnt bei 27,4m
OTU's Tauchgang: 21
CNS Total: 7,4%
I'm no German speaker, but I guess Oberflächenpause is surface
interval. Can you try planning this dive again with V-Planner, but do
it as a new 'mission', rather than a 5 day surface interval? In
Subsurface, we ignore any previous dives >2 days earlier, but
V-Planner may not, and it may be taking credit for the crushing
pressure of the previous dive.
Finally I decided not to worry too much :-)
- I prefer to see a penalty for any repetitive dive I plan so I
like the fix you did now
- Subsurface at least in this examples gives similar or slightly
more conservative results -> also ok for me
- My buddies and me will continue to compare different results
before we go diving
- I don't do repetitive dives so often because actually I'm too
lazy to get in and out of my dry suit more than once a day + plus
I'm so hungry and thirsty after each dive that this also stops me
from doing a second one afterwards ;-)
Best regards
Stefan
--
Stefan Fuchs
E-Mail: [email protected] <mailto:[email protected]>
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