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Thread: dive plan ???

  1. #21
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    Re: dive plan ???

    Quote Originally Posted by Jeppe_E  View Original Post
    Pretty clear to me

    You have depth, time,(total R/T), Gas

    As bottom time starts from leaving the surface...

    Descend 2 min (velocity 25m/min?)
    50 metres for 13 min (total runtime 15 min) fO2 21%
    Ascend to 18 metres 4 min (velocity 8m/min)
    18 metres Stop 1 min (total runtime 20 min) Swap gas to EAN31
    15 metres Stop 1 min (total R/T 21) Swap gas to EAN60
    ...
    ...
    ...
    3 Metres stop 6 min (R/T 34 min)


    Still dont understand the gasswap doesnt occur until 18 metres. I do hope you have some He in your backgas as well?
    swap is not seen in scedule as it is made on the fly. View graph and you will see.
    Next suggestion is to read manual on hhssoftware/v-planners website.

  2. #22
    RBW Member ztirfritz is an unknown quantity at this point ztirfritz's Avatar
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    Re: dive plan ???

    Quote Originally Posted by Jeppe_E  View Original Post
    Pretty clear to me

    You have depth, time,(total R/T), Gas

    As bottom time starts from leaving the surface...

    Descend 2 min (velocity 25m/min?)
    50 metres for 13 min (total runtime 15 min) fO2 21%
    Ascend to 18 metres 4 min (velocity 8m/min)
    18 metres Stop 1 min (total runtime 20 min) Swap gas to EAN31
    15 metres Stop 1 min (total R/T 21) Swap gas to EAN60
    ...
    ...
    ...
    3 Metres stop 6 min (R/T 34 min)


    Still dont understand the gasswap doesnt occur until 18 metres. I do hope you have some He in your backgas as well?

    Try choosing the extended stop checkbox under configuration. Set time to 1 min. Also check All deco mix changes. Then plan will do a stop on each gas change
    hence my query regarding getting it clarified as not clear why gas switch at 18m, so no that clear afterall.

  3. #23
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    Re: dive plan ???

    Quote Originally Posted by Igor P  View Original Post
    to be sure you can view graph and there you can see wnere the changes are made
    thanks igor you have been helpful

  4. #24
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    Re: dive plan ???

    Quote Originally Posted by Igor P  View Original Post
    swap is not seen in scedule as it is made on the fly. View graph and you will see.
    Next suggestion is to read manual on hhssoftware/v-planners website.
    Ok, it is a bit unclear in the textversion of the plan.. Still says air while ascending to first 21 metres. But if you add time for deco gas (set the value to 0) and add all deco gasses in config, it will show the gasswap correctly.

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    Re: dive plan ???

    Quote Originally Posted by ztirfritz  View Original Post
    hence my query regarding getting it clarified as not clear why gas switch at 18m, so no that clear afterall.

    I agree :)

    But check the Add stop for deco and set to 0 and you will have the following
    Attached Images

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    Re: dive plan ???

    vplanner on ipad tells me the gas switch is at 24m. but at 31m it shows a no-stop and one min to 24. i think it means the switch begins at 31m and by 24m it is complete. on the fly. maybe your settings for gas switch durations, or even the meters between stops needs adjusting?

    skip

  7. #27
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    Re: dive plan ???

    Quote Originally Posted by skip  View Original Post
    vplanner on ipad tells me the gas switch is at 24m. but at 31m it shows a no-stop and one min to 24. i think it means the switch begins at 31m and by 24m it is complete. on the fly. maybe your settings for gas switch durations, or even the meters between stops needs adjusting?

    skip
    can you post print screen? So we can discus it.... sure with settings same as above...

  8. #28
    RBW Member Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P's Avatar
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    Re: dive plan ???

    Quote Originally Posted by Jeppe_E  View Original Post
    Ok, it is a bit unclear in the textversion of the plan.. Still says air while ascending to first 21 metres. But if you add time for deco gas (set the value to 0) and add all deco gasses in config, it will show the gasswap correctly.
    no it does not say air while ascending to first stop at 21 meters, but nitrox 31...
    The program is made for divers used to do decompression dives knowing where gasses are changed, so if you set 1.5 pPO2 for 28 to 45% the program takes in account that and assumes you make the change there. Even not showing the swap of mix like a stop.

    Dec to 50m (2) Air 18m/min descent.
    Level 50m 12:13 (15) Air 1,25 ppO2, 50m ead
    Asc to 36m (16) Air -10m/min ascent.
    Asc to 21m (17) Nitrox 31 -10m/min ascent. <-------- indicated ascent on nitrox 31
    Stop at 21m 1:06 (19) Nitrox 50 1,54 ppO2, 10m ead
    Stop at 18m 1:00 (20) Nitrox 50 1,39 ppO2, 8m ead
    Stop at 15m 1:00 (21) Nitrox 50 1,24 ppO2, 6m ead
    Stop at 12m 2:00 (23) Nitrox 50 1,10 ppO2, 4m ead
    Stop at 9m 2:00 (25) Nitrox 50 0,95 ppO2, 2m ead
    Stop at 6m 5:00 (30) Nitrox 50 0,80 ppO2, 0m ead
    Stop at 3m 7:00 (37) Nitrox 50 0,65 ppO2, 0m ead
    Surface (37) Nitrox 50 -10m/min ascent.

    But if you want to see the swap in mix than check Extended stops in settings and check All deco mix changes and O2 window affect options, with just 1 min for the swap or whatever you want for the swap to be added. This way you get scedule like this with swaps seen in it:

    Dec to 50m (2) Air 18m/min descent.
    Level 50m 12:13 (15) Air 1,25 ppO2, 50m ead
    Asc to 36m (16) Air -10m/min ascent.
    Stop at 36m 1:36 (18) Nitrox 31 1,42 ppO2, 30m ead <------------ indicated swap within 1 min with added rounding for RT to be in round in minutes
    Stop at 21m 1:48 (21) Nitrox 50 1,54 ppO2, 10m ead
    Stop at 15m 0:42 (22) Nitrox 50 1,24 ppO2, 6m ead
    Stop at 12m 2:00 (24) Nitrox 50 1,10 ppO2, 4m ead
    Stop at 9m 3:00 (27) Nitrox 50 0,95 ppO2, 2m ead
    Stop at 6m 5:00 (32) Nitrox 50 0,80 ppO2, 0m ead
    Stop at 3m 7:00 (39) Nitrox 50 0,65 ppO2, 0m ead
    Surface (39) Nitrox 50 -10m/min ascent
    Last edited by Igor P; 16th January 2013 at 23:19.

  9. #29
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    Re: dive plan ???

    Hi,

    Igor is correct here.

    ASC to 39m (16) Air -9m/min ascent
    ASC to 21m (18) Nitrox 31 -9m/min ascent


    That implies a swap at 39m to 31%, in transit in ascent. The key words here are "Asc to x depth on y mix at z rate".

    *****

    Asc to 36m (16) Air -10m/min ascent.
    Stop at 36m 1:36 (18) Nitrox 31 1,42 ppO2, 30m ead
    ..
    ..
    Stop at 21m 1:48 (21) Nitrox 50 1,54 ppO2, 10m ead


    At 36m, a stop and a mix swap.
    At 21m, another stop and mix swap


    *******

    The short plan was designed to be cut out with scissors and tapped onto the dive slate. The columns are:

    Depth, time, (run time), mix

    Regards
    Last edited by rossh; 17th January 2013 at 04:15.
    Ross Hemingway
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    V-Planner PC, Mac, Mobile, iPhone-iPod, Android. MultiDeco Android, PC, Mac.
    V-Planner Live and MultiDeco-X1 for the Liquivision X1 dive computer.
    MultiDeco-DR5 for the DR-5 dive computer.

  10. #30
    RBW Member ztirfritz is an unknown quantity at this point ztirfritz's Avatar
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    Re: dive plan ???

    Quote Originally Posted by Igor P  View Original Post
    no it does not say air while ascending to first stop at 21 meters, but nitrox 31...
    The program is made for divers used to do decompression dives knowing where gasses are changed, so if you set 1.5 pPO2 for 28 to 45% the program takes in account that and assumes you make the change there. Even not showing the swap of mix like a stop.

    Dec to 50m (2) Air 18m/min descent.
    Level 50m 12:13 (15) Air 1,25 ppO2, 50m ead
    Asc to 36m (16) Air -10m/min ascent.
    Asc to 21m (17) Nitrox 31 -10m/min ascent. <-------- indicated ascent on nitrox 31
    Stop at 21m 1:06 (19) Nitrox 50 1,54 ppO2, 10m ead
    Stop at 18m 1:00 (20) Nitrox 50 1,39 ppO2, 8m ead
    Stop at 15m 1:00 (21) Nitrox 50 1,24 ppO2, 6m ead
    Stop at 12m 2:00 (23) Nitrox 50 1,10 ppO2, 4m ead
    Stop at 9m 2:00 (25) Nitrox 50 0,95 ppO2, 2m ead
    Stop at 6m 5:00 (30) Nitrox 50 0,80 ppO2, 0m ead
    Stop at 3m 7:00 (37) Nitrox 50 0,65 ppO2, 0m ead
    Surface (37) Nitrox 50 -10m/min ascent.

    But if you want to see the swap in mix than check Extended stops in settings and check All deco mix changes and O2 window affect options, with just 1 min for the swap or whatever you want for the swap to be added. This way you get scedule like this with swaps seen in it:

    Dec to 50m (2) Air 18m/min descent.
    Level 50m 12:13 (15) Air 1,25 ppO2, 50m ead
    Asc to 36m (16) Air -10m/min ascent.
    Stop at 36m 1:36 (18) Nitrox 31 1,42 ppO2, 30m ead <------------ indicated swap within 1 min with added rounding for RT to be in round in minutes
    Stop at 21m 1:48 (21) Nitrox 50 1,54 ppO2, 10m ead
    Stop at 15m 0:42 (22) Nitrox 50 1,24 ppO2, 6m ead
    Stop at 12m 2:00 (24) Nitrox 50 1,10 ppO2, 4m ead
    Stop at 9m 3:00 (27) Nitrox 50 0,95 ppO2, 2m ead
    Stop at 6m 5:00 (32) Nitrox 50 0,80 ppO2, 0m ead
    Stop at 3m 7:00 (39) Nitrox 50 0,65 ppO2, 0m ead
    Surface (39) Nitrox 50 -10m/min ascent
    Thanks Igor, feel way more comfortable with planner. safe diving

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