home made planing powercat.

Discussion in 'Multihulls' started by jwtje, Oct 8, 2011.

  1. jwtje
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    jwtje New Member

  2. hoytedow
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    hoytedow Wood Butcher

    Goed varen!

    Die is het mooist!
     
  3. hoytedow
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    hoytedow Wood Butcher

    Welcome to the forum!
     
  4. Manie B
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    Manie B Senior Member

  5. jwtje
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    jwtje New Member

    Here's another clip is of Hans Dekker waterdisplacement cats. Hans has helped me to design my boat.

    I'm thinking to make a steped hull on my boat. Does anyone here has tips or information about steped hull construction??
     
  6. hoytedow
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    hoytedow Wood Butcher

  7. jwtje
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    jwtje New Member

    1 person likes this.
  8. Wavewacker
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    Wavewacker Senior Member

    Cool! Looks like the jet ski of cats out there jumping the wakes. Looks like an Eco 6, one that is on my list of considerations. But it appears the hulls are thiner than Gilbert's design, not sure.

    I just wondered of making one a little longer with more aft deck....:confused:


    Oooops! Nope, that'sno Eco 6, saw the build pics, that's awsome, a mini speed cat, how does it go at slower displacement speeds? In the video is that the same boat with a cabin?
     
  9. jwtje
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    jwtje New Member

    the last video is a verry diverend cat. that's a water displacement cat 2 x 50hp Honda.
    My cat runs good in avrey speed but the best wen its comming out of the water, let say at a 20 25 kmh.

    Where can i vind pictures of het Eco 6 ??
     
  10. hoytedow
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    hoytedow Wood Butcher

  11. Fanie
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    Fanie Fanie

    Solank jy net nie van die stoel af val nie ne' :D

    As far as I know the stepped hulls enhance the planing abilities of the hull and possibly reduce spray.
     
  12. hoytedow
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    hoytedow Wood Butcher

    Fall off what chair? You know I don't speak Dutch and/or Afrikaans. :)
     

  13. Kestrel
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    Kestrel Junior Member

    Nice project! congratulations jwtje!
    Yes, Fanie, a well (single) stepped hull enhance planing abilities, specially if high loads and advanced center of gravity needs to be used, also an optimized step position improves dynamic stability behaviour (avoiding porpoising, i.e.) and efficiency in general. This thread treats item in some way: http://www.boatdesign.net/forums/boat-design/stepped-hull-resistance-35492.html
    Bye
    K.
     
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