Advanced Commercial Aluminum Catamaran

Discussion in 'Multihulls' started by anthonydimare, Aug 7, 2015.

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  1. DCockey
    Joined: Oct 2009
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    Location: Midcoast Maine

    DCockey Senior Member

    RNLI Shannon class, 1st production boat delivered 2014, waterline 11.6m, displacement 18 tonnes (maximum)​ http://rnli.org/aboutus/lifeboatsandstations/lifeboats/Pages/shannon.aspx
    ​The hull is a foam sandwich construction comprising typically four outer and one inner 1,200g/m2 quadriaxial glass skins separated by a 70mm thick Coracell P grade foam core. Variations and additional reinforcements are included locally where required. http://www.maritimejournal.com/news...aunch/rnlis-latest-lifeboat-ready-for-service
     
    DCockey, Aug 13, 2015
    #46
  2. hump101
    Joined: Oct 2004
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    Location: Brittany, France

    hump101 Senior Member

    The RNLI has been using foam cores in the hulls since the Trent class in the 90's, but I notice on their web site tech specs (David's link above) for the Shannon, Tamar, and Severn they are using single skin below the chine, which I wasn't aware of.
     
    hump101, Aug 14, 2015
    #47

  4. Ad Hoc
    Joined: Oct 2008
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    Location: Japan

    Ad Hoc Naval Architect

    We built the Severn Class at my previous yard...hence my comment.
     
    Ad Hoc, Aug 14, 2015
    #48
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