calculating Bailout using V-Planner

Ned Kelly · 19th July 2007, 13:52

Hi

Could someone tell me how to use V-planner to run a bailout profile from the bottom. Which ever way I do it it doesn't bailout until shallower.

Thanks
Ged

Stephane · 19th July 2007, 14:39

Hi Ged,

Very simple: just check the gases you are going to use, they will be included as bailout and/or deco if the MOD you specified is OK.

Ned Kelly · 19th July 2007, 15:39

Quote: (Originally Posted by Stephane)

Hi Ged,

Very simple: just check the gases you are going to use, they will be included as bailout and/or deco if the MOD you specified is OK.

Thanks Stephane for the reply so quick

It still looks to me that it's using the Rebreather to get me back to 36m, am i missing something, i've attached a run time below.

Thanks for your help
Ged

gathan · 19th July 2007, 15:52

Here's how I do it:

I add a diving segment to the dive profile for example; If I have a CCR segment to 200' for 30 min, I add another one that would read 200' for 1 min with the appropriate bail out gas put in. In the window that pops up after clicking the add button, make sure to check the "OC" box at the bottom.

Andre

Stephane · 19th July 2007, 15:55

No it isn't. It is telling you that your're ascending to 36m on OC.
To convince yourself, do the same while unchecking the bailout gases, you'll have a fixed setpoint from bottom to the first deco stop.

Ned Kelly · 19th July 2007, 15:57

Quote: (Originally Posted by gathan)

Here's how I do it:

I add a diving segment to the dive profile for example; If I have a CCR segment to 200' for 30 min, I add another one that would read 200' for 1 min with the appropriate bail out gas put in. In the window that pops up after clicking the add button, make sure to check the "OC" box at the bottom.

Andre

That works for me, Thanks very much Andre and Stephane. Now I can prep some bailout slates

pattimegdiver · 19th July 2007, 16:44

On the left hand side when selecting ccr gasses, you insert depth,time,mix,setpoint. Then make identical one on the left hand side for the same depth - you put 0 for time and them you put the gass mix and at the bottom of the box you click OC.
For the second bail out that would be in th right hand column under OC DECO.
listed below is a dive plan it is kind of hard to read.

Decompression model: VPM - B/E
DIVE PLAN
Surface interval = 1 day 0 hr 0 min.
Elevation = 0ft
Conservatism = Nominal

Dec to 200ft (4) Diluent 16/42 0.70 SetPoint, 50ft/min descent.
Level 200ft 26:00 (30) Diluent 16/42 1.20 SetPoint, 89ft ead, 103ft end
Asc to 130ft (32) Trimix 16/42 -30ft/min ascent.
Stop at 130ft 0:40 (33) Trimix 16/42 0.79 ppO2, 54ft ead, 62ft end
Stop at 120ft 1:00 (34) Trimix 16/42 0.74 ppO2, 48ft ead, 56ft end
Stop at 110ft 1:00 (35) Trimix 16/42 0.69 ppO2, 43ft ead, 50ft end
Stop at 100ft 2:00 (37) Trimix 16/42 0.64 ppO2, 38ft ead, 44ft end
Stop at 90ft 2:00 (39) Trimix 16/42 0.60 ppO2, 32ft ead, 38ft end
Stop at 80ft 4:00 (43) Trimix 16/42 0.55 ppO2, 27ft ead, 33ft end
Stop at 70ft 2:00 (45) Nitrox 50 1.56 ppO2, 32ft ead
Stop at 60ft 3:00 (48) Nitrox 50 1.41 ppO2, 26ft ead
Stop at 50ft 3:00 (51) Nitrox 50 1.26 ppO2, 20ft ead
Stop at 40ft 5:00 (56) Nitrox 50 1.10 ppO2, 13ft ead
Stop at 30ft 7:00 (63) Nitrox 50 0.95 ppO2, 7ft ead
Stop at 20ft 5:00 (68) Nitrox 50 0.80 ppO2, 1ft ead
Stop at 15ft 27:00 (95) Nitrox 50 0.73 ppO2, 0ft ead
Surface (95) Nitrox 50 -30ft/min ascent.
Off gassing starts at 157ft
OTU's this dive: 84
CNS Total: 31.1%
31.8 cu ft Trimix 16/42
46.9 cu ft Nitrox 50
78.7 cu ft OC TOTAL

rossh · 19th July 2007, 17:38

Quote: (Originally Posted by Ned Kelly)

Thanks Stephane for the reply so quick

It still looks to me that it's using the Rebreather to get me back to 36m, am i missing something, i've attached a run time below.

Thanks for your help
Ged

The error you have, is 16/50 is entered as a dil, but 16/46 as a bail out mix. To the deco program, it's a different mix. You need to put that same 16/50 into the deco column, and then it runs from bottom up OC on dil.

Regards

colinicky · 19th July 2007, 18:11

So Ross just to clarify :- If I enter a dil of 18/45 for the ccr segment I must enter the same mix as a bailout if I want to bail out from the bottom ?
If not then I am wondering how to bailout from the bottom on a different mix to my dil ?
TIA

Allan_o · 19th July 2007, 18:20

As i see it you are doing it correct.

your 16/50 is the dil, but v-planner calculates worst case scenario, and that must be bailout after 25mins..
Then the plan switch to 16/46 for bailout and then ascend to 36 meters, and you have your first stop.
The reason why v-planner dosent give you any info from 56 to 36 is that you are on the move and end/po2 is changing.

only my 2 cents..

/Allan

19th July 2007, 13:52	#1 (permalink)
Ned Kelly New Member Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Oct 2006 Location: Manchester Posts: 7	calculating Bailout using V-Planner Hi Could someone tell me how to use V-planner to run a bailout profile from the bottom. Which ever way I do it it doesn't bailout until shallower. Thanks Ged
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19th July 2007, 14:39	#2 (permalink)
Stephane Stéphane Acounis Current Rebreather/s: rEvo Other Rebreather/s: rEvo Join Date: Nov 2005 Location: Nantes - France Posts: 773	Re: calculating Bailout using V-Planner Hi Ged, Very simple: just check the gases you are going to use, they will be included as bailout and/or deco if the MOD you specified is OK. __________________ Stéphane
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19th July 2007, 15:52	#4 (permalink)
gathan MixedGas Current Rebreather/s: Classic Kiss Other SCR Other Rebreather/s: Other SCR Join Date: Sep 2005 Location: Tottenham, Ontario, Canada Posts: 202	Re: calculating Bailout using V-Planner Here's how I do it: I add a diving segment to the dive profile for example; If I have a CCR segment to 200' for 30 min, I add another one that would read 200' for 1 min with the appropriate bail out gas put in. In the window that pops up after clicking the add button, make sure to check the "OC" box at the bottom. Andre
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19th July 2007, 15:55	#5 (permalink)
Stephane Stéphane Acounis Current Rebreather/s: rEvo Other Rebreather/s: rEvo Join Date: Nov 2005 Location: Nantes - France Posts: 773	Re: calculating Bailout using V-Planner No it isn't. It is telling you that your're ascending to 36m on OC. To convince yourself, do the same while unchecking the bailout gases, you'll have a fixed setpoint from bottom to the first deco stop. __________________ Stéphane
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19th July 2007, 15:57	#6 (permalink)
Ned Kelly New Member Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Oct 2006 Location: Manchester Posts: 7	Re: calculating Bailout using V-Planner Quote: (Originally Posted by gathan) Here's how I do it: I add a diving segment to the dive profile for example; If I have a CCR segment to 200' for 30 min, I add another one that would read 200' for 1 min with the appropriate bail out gas put in. In the window that pops up after clicking the add button, make sure to check the "OC" box at the bottom. Andre That works for me, Thanks very much Andre and Stephane. Now I can prep some bailout slates
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19th July 2007, 16:44	#7 (permalink)
pattimegdiver #1 COPIS Mini Meg Girl Current Rebreather/s: Megalodon Sport Kiss Other Rebreather/s: Join Date: Nov 2005 Location: Portland Oregon Posts: 307	Re: calculating Bailout using V-Planner On the left hand side when selecting ccr gasses, you insert depth,time,mix,setpoint. Then make identical one on the left hand side for the same depth - you put 0 for time and them you put the gass mix and at the bottom of the box you click OC. For the second bail out that would be in th right hand column under OC DECO. listed below is a dive plan it is kind of hard to read. Decompression model: VPM - B/E DIVE PLAN Surface interval = 1 day 0 hr 0 min. Elevation = 0ft Conservatism = Nominal Dec to 200ft (4) Diluent 16/42 0.70 SetPoint, 50ft/min descent. Level 200ft 26:00 (30) Diluent 16/42 1.20 SetPoint, 89ft ead, 103ft end Asc to 130ft (32) Trimix 16/42 -30ft/min ascent. Stop at 130ft 0:40 (33) Trimix 16/42 0.79 ppO2, 54ft ead, 62ft end Stop at 120ft 1:00 (34) Trimix 16/42 0.74 ppO2, 48ft ead, 56ft end Stop at 110ft 1:00 (35) Trimix 16/42 0.69 ppO2, 43ft ead, 50ft end Stop at 100ft 2:00 (37) Trimix 16/42 0.64 ppO2, 38ft ead, 44ft end Stop at 90ft 2:00 (39) Trimix 16/42 0.60 ppO2, 32ft ead, 38ft end Stop at 80ft 4:00 (43) Trimix 16/42 0.55 ppO2, 27ft ead, 33ft end Stop at 70ft 2:00 (45) Nitrox 50 1.56 ppO2, 32ft ead Stop at 60ft 3:00 (48) Nitrox 50 1.41 ppO2, 26ft ead Stop at 50ft 3:00 (51) Nitrox 50 1.26 ppO2, 20ft ead Stop at 40ft 5:00 (56) Nitrox 50 1.10 ppO2, 13ft ead Stop at 30ft 7:00 (63) Nitrox 50 0.95 ppO2, 7ft ead Stop at 20ft 5:00 (68) Nitrox 50 0.80 ppO2, 1ft ead Stop at 15ft 27:00 (95) Nitrox 50 0.73 ppO2, 0ft ead Surface (95) Nitrox 50 -30ft/min ascent. Off gassing starts at 157ft OTU's this dive: 84 CNS Total: 31.1% 31.8 cu ft Trimix 16/42 46.9 cu ft Nitrox 50 78.7 cu ft OC TOTAL __________________ Patti Meg Diver Remember that great love and great achievements involve great risk Last edited by pattimegdiver : 19th July 2007 at 16:51.
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19th July 2007, 17:38	#8 (permalink)
rossh Custom Title Allowed! Current Rebreather/s: Not Bought Yet Other Rebreather/s: Not Bought Yet Join Date: Jul 2005 Location: Canada Posts: 111	Re: calculating Bailout using V-Planner Quote: (Originally Posted by Ned Kelly) Thanks Stephane for the reply so quick It still looks to me that it's using the Rebreather to get me back to 36m, am i missing something, i've attached a run time below. Thanks for your help Ged The error you have, is 16/50 is entered as a dil, but 16/46 as a bail out mix. To the deco program, it's a different mix. You need to put that same 16/50 into the deco column, and then it runs from bottom up OC on dil. Regards __________________ Regards, Ross Hemingway V-Planner Live for the X1 V-Planner VPM-B Nitrox Trimix CCR Deco planning for Technical Divers www.v-planner.com
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19th July 2007, 18:11	#9 (permalink)
colinicky Custom Title Allowed! Current Rebreather/s: Inspiration Vision Other Rebreather/s: Inspiration Classic Join Date: Mar 2005 Location: uk Posts: 676	Re: calculating Bailout using V-Planner So Ross just to clarify :- If I enter a dil of 18/45 for the ccr segment I must enter the same mix as a bailout if I want to bail out from the bottom ? If not then I am wondering how to bailout from the bottom on a different mix to my dil ? TIA __________________ Colin I trust my rebreather completely , I just don't trust the user onwards & downwards
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19th July 2007, 18:20	#10 (permalink)
Allan_o New Member Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Dec 2005 Location: Copenhagen Denmark Posts: 81	Re: calculating Bailout using V-Planner As i see it you are doing it correct. your 16/50 is the dil, but v-planner calculates worst case scenario, and that must be bailout after 25mins.. Then the plan switch to 16/46 for bailout and then ascend to 36 meters, and you have your first stop. The reason why v-planner dosent give you any info from 56 to 36 is that you are on the move and end/po2 is changing. only my 2 cents.. /Allan
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