Sailing boats' Stability, STIX and Old Ratios

Discussion in 'Stability' started by Guillermo, Sep 3, 2006.

  1. richardsnowstar
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    richardsnowstar New Member

    Stability info for Southerly 115

    Hi, Does anyone know where I can get official Stability info for a 1985 Southerly 115. I need it to get the yacht MCA coded for charter. Any help would be appreciated. Thanks, Richard.
     
  2. Guillermo
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    Guillermo Ingeniero Naval

  3. richardsnowstar
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    richardsnowstar New Member

  4. TeddyDiver
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    TeddyDiver Gollywobbler

    Think this Eric Sponbergs post should be duplicated here. Also link to the original thread http://www.boatdesign.net/forums/boat-design/center-flotation-calculation-implications-30857-14.html
     
  5. Guillermo
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    Guillermo Ingeniero Naval

    Thanks for bringing my attention to Eric's excellent post, Teddy. Not enough time now to participate in the forums these days (work traveling), I'll study this interesting S number carefully when back home.

    All the best.
     
  6. Alfredoc
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    Alfredoc Junior Member

    Hi all,
    someone can help me?
    I've tried to calculate the STIX of the Jeanneau SELECTION 37 but whit infruttuosely results!!! :confused: :confused:
    Could you help me:?: :?: :?: :?:

    Cheers

    Alfredo
     
  7. TeddyDiver
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    TeddyDiver Gollywobbler

    Pretty sure they don't announce all the necessary data you to do that. Have you the spreadsheet for the STIX formula? If not here's a copy. Just throw the numbers in, but be aware, crap in.. ;)
     

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  8. Alfredoc
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    Alfredoc Junior Member

    Thank's Teddy,
    i've tried but i haven't all the numbars, in few week i have read all this iteresting post, I'm not a technician but a simple corintian sailor who wont make a sail race who the committee want boats whis a stix >32 like a A class:(

    ciao

    Alfred
     
  9. Guillermo
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    Guillermo Ingeniero Naval

    Alfredoc.
    I have found something useful here: http://cruisingresources.com/Jeanneau_Selection_37

    But to be able to work out an approximate STIX (roughly) I need a profile plan showing the sail plan and the underbody. If you provide me with such a plan I can do the numbers for you.

    Cheers.
     
  10. Alfredoc
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    Alfredoc Junior Member

    Dear Guillermo,
    first of all thank you for this trade is really interesting for learnig about boat and her stability.
    the only numbers who i have are the one-desing roule: http://selection37.com/francais/aps/JaugeDec05.pdf

    personally i need changing mast (more short ) but if my boat have a low stix and avs is unnecessary

    here i join a irc certificate of a selection modified (with the short mast)

    ciao

    Alfredo
     

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  11. Guillermo
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    Guillermo Ingeniero Naval

    Those are more accurate numbers, excellent. Now we need a profile drawing.
    Cheers.
     
  12. Alfredoc
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    Alfredoc Junior Member

    This are the only two design who i have :(

    a lot of thank's

    ciao

    Alfred
     

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  13. Guillermo
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    Guillermo Ingeniero Naval

    OK.
    I'll work on them this weekend.
    All the best.
    Guillermo.
     
  14. Guillermo
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    Guillermo Ingeniero Naval

    Sorry I have not been able to work on it this week end (busy boating and spearfishing with kids). I'll try to do it some day this week.
    Cheers.
     

  15. Alfredoc
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    Alfredoc Junior Member

    Guillermo don't warry !!!!!!!

    I've no hurry

    When you can, you are giving me a great gift

    Thanks a lot

    ciao

    Alfred
     
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