The Ideal Cruiser - a long range passagemaker

Discussion in 'Projects & Proposals' started by D'ARTOIS, Sep 9, 2005.

  1. kwb1312
    Joined: Sep 2007
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    Location: Brittany

    kwb1312 Junior Member

    I suppose they know what they do (they designed the Allures too) , just when I saw the 3M keel the X-50 came into my mind with 3M keel too, but carries about 4,7T weight (Displ. 12,4T). So if you compare the ratios thats 0,24 vs 0,38. Quite a difference. Different type of boat too, of course.
     
  2. Vega
    Joined: Apr 2005
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    Vega Senior Member

    Yes. I have no doubts about the inicial stability (the Azzuro hull will provide a lot more form stability) but you should take a look at the stability curve in what regards the AVS and the inverted stability.

    If they provide you with a stability curve, I would like to take a look.
     
  3. Vega
    Joined: Apr 2005
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    Location: Portugal

    Vega Senior Member

    They designed a lot more than that:D

    I said they were reputable architects;) ...they have received a BOAT DESIGN NET- PROFESSIONAL DESIGN AWARD ( June 2001):

    .... "
    The designs of Berret-Racoupeau exemplify strength though simplicity and a subtle grace. Throughout their large yet cohesive body of work, their designs are clean, simple, and balanced, minimalist in such a way as to be perfect. Not a detail can be taken away nor a detail can be added; their designs are cleanly honed to a state of perfection."


    http://www.boatdesign.net/archive/berret-racoupeau.htm

    http://voilesnews.fr/fr/info_14_7657.html?nid=38000225

    http://findarticles.com/p/articles/mi_pwwi/is_200405/ai_mark3524209523
     

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  4. kwb1312
    Joined: Sep 2007
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    Location: Brittany

    kwb1312 Junior Member

    "They designed a lot more than that"...you forgot the Beneteau Oceanis 50 :D

    Thank you for the links, Vega. If I get the stability curve of the Azzuro I will send it.
     
  5. Guillermo
    Joined: Mar 2005
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    Location: Pontevedra, Spain

    Guillermo Ingeniero Naval

    If stated displacement is for lightship condition, probably the GZ curve is also draw for that condition and that would be why I'm getting so high STIX numbers (even coming down to a downflooding angle of 110º I get a figure over 58, not 54). If this is so, then that curve is not a normative one to calculate STIX and has to be taken with care.

    I think all of us would appreciate very much if boatbuilders were more precise about the conditions for which the stability information is given.

    I'll be very grateful if you provide me with the info you can get from the boatyard regarding stability. Thanks in advance.

    ....Absolutely! :) :rolleyes:
     
  6. masalai
    Joined: Oct 2007
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    Location: cruising, Australia

    masalai masalai

    My two cents worth? Look seriously at a displacement power (cause I am old & lazy) cat. With narrow hulls, composite construction, 12m (39.37ft) waterline, modest engines should give 15knots and 1500 plus miles & lots of space with a beam of 21 feet. Weight is critical, definitely not good for "bower-birds" (accumulators of things - junk) but should allow 4.5 tonnes & 2 tonnes fuel ready to go. I am model testing at 1:10 scale now. direct contact OK
     

  7. edik
    Joined: Jul 2011
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    Location: Los Angeles, USA

    edik Junior Member

    As I always say, anybody can learn the skill to build a boat that will sail. But to build a pretty boat is a talent - not a skill. And Berret-Racoupeau design very pretty boats that sail well...
     
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