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The "Ultimate" wing lift calculator :)

Discussion in 'Buoyancy Compensators (BC's) and Weight Systems' started by selytch, Sep 13, 2006.

  1. selytch

    selytch Nassau Grouper

    # of Dives: 200 - 499
    Location: Wailuku, HI
    104
    5
    0
    Hello everybody,
    I've been puzzled for some time picking the right wing and made this small excel spreadsheet to assist me. It helps choosing the right lift for your wing/BC, picking enough _and_not_more_ lead and shows your buoyancy at the various stages of dive.
    Start with section 1 and see how the table changes and the required lift/amount of weight are displayed in section 2.
    Post your feedback/suggestions here or pm/email me.
    Enjoy!

    http://admin.minus-mp3.com/Bouyancy_calculator.xls
    http://admin.minus-mp3.com/Bouyancy_calculator.xls


    PS. IMHO this may be helpful not only to novice divers but also to advanced ones.
     
    Storm_9 likes this.
  2. fracchiam

    fracchiam Instructor, Scuba

    13
    0
    0
    Nice tool! Thanks!
     
  3. sasscuba

    sasscuba Loggerhead Turtle

    2,094
    2
    0
    Cannot open on MAC. I need excel....anyway to email it or cut, copy and paste it here? Interested in reading it. Thanks.
     
  4. TheRedHead

    TheRedHead Orca Rest in Peace

    # of Dives: 200 - 499
    Location: Dixie
    6,948
    3
    0
    What is the "above water" value represent? That's not clear to me. Neither is head weight.
     
  5. selytch

    selytch Nassau Grouper

    # of Dives: 200 - 499
    Location: Wailuku, HI
    104
    5
    0
    It has to be in excel or similar spreadsheet - there are dynamic calculation.
    You can download openoffice (openoffice.org), I believe they have mac version as well.

     
    jcfahy likes this.
  6. selytch

    selytch Nassau Grouper

    # of Dives: 200 - 499
    Location: Wailuku, HI
    104
    5
    0
    When you are on the surface a part of your body - usually head - sticks out. This way you can breath not compressed air and talk to your buddies :))

    When the head is above the surface it contributes to negative buoyancy. Since average head weighs ~10# that's how much compensation we need to keep it above surface.

     
    dive_turkey and David Sutton like this.
  7. selytch

    selytch Nassau Grouper

    # of Dives: 200 - 499
    Location: Wailuku, HI
    104
    5
    0
    BTW, I just uploaded an updated version, which can calculate lift for both weight integrated (lead on rig) and non-integrated (weight belt) BC. There are some substancial differences between the two.
     
    PT88 likes this.
  8. TheRedHead

    TheRedHead Orca Rest in Peace

    # of Dives: 200 - 499
    Location: Dixie
    6,948
    3
    0
    Looks like a great tool! Can't wait to try it out. :)
     
  9. Rainer

    Rainer DIR Practitioner

    6,026
    588
    113
    Aren't regs something like -2 lbs? Didn't see that reflected. [Obviously can just add to tank, but might be nice to have in there.]
     
  10. Rainer

    Rainer DIR Practitioner

    6,026
    588
    113
    Also, any suggestions for calculating exposure suit lift at depth? I had no idea what to put in this cell for my 7 mm wetsuit and 6/4 mm hooded vest. Thanks!
     

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