GOP Home Build

Discussion in 'Boat Design' started by schultzfactor, Oct 25, 2013.

  1. Mr Efficiency
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    Mr Efficiency Senior Member

    Go ahead ! :D
     
  2. SukiSolo
    Joined: Dec 2012
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    SukiSolo Senior Member

    That's an awful lot of concave rocker you have there!.

    Think I'll pass on taking this one out to sea, maybe with 4hp certainly not more than 8.....and maybe a shallow pond. Those with more knowledge of small outboard cats may enlighten you further.

    Handling characteristics should be 'interesting'.....
     
  3. Mr Efficiency
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    Mr Efficiency Senior Member

    'Tis a strange beast indeed !
     
  4. schultzfactor
    Joined: Oct 2013
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    Location: Rotorua New Zealand

    schultzfactor Senior Member

    Still Fairing

    Filling...Sanding...Filling...Sanding

    And the centre console
     

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  5. frank smith
    Joined: Oct 2009
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    frank smith Senior Member

    That's a pretty heavy build for a planing cat. You also might find the hulls a little narrow and lacking in area for planing. Best of luck.
    F
     
  6. FAST FRED
    Joined: Oct 2002
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    Location: Conn in summers , Ortona FL in winter , with big d

    FAST FRED Senior Member

    if after the whole effort it becomes a 5knot trout barge then so be it, but I'll give it a blast and see what happens.

    Years ago I saw a 14 Hoby Cat with a tiny outboard engine that looked like a weed wacker as main power.

    It probably weighed 15 lbs and pushed the Hoby at a grand clip.

    In Long Island Sound the gents problem was the breeze would die and paddling home 5+ miles was a chore.

    The boat went delightfully , perhaps 8K or more.
     
  7. Mr Efficiency
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    Mr Efficiency Senior Member

    With two submerged transoms, this creation won't be doing 8 knots with a "weed whacker". The maiden voyage will be an "interesting" exercise, imo. I look forward to seeing it on youtube. :D
     
  8. LP
    Joined: Jul 2005
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    LP Flying Boatman

    Curious craft.

    What is it's displacement?

    How many people will you be able to carry?

    What are the bending moments on your transverse members in a steady and in a sea state?

    How much will it weigh when it is done?
     
  9. schultzfactor
    Joined: Oct 2013
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    Location: Rotorua New Zealand

    schultzfactor Senior Member

    Curious Craft

    Not Sure of the displacement, hoping for under 400kg.
    How many people? Dunno, it has 10 meters of deck space. Will go slowly and add one person at a time till it falls apart. Im not sure what you mean by bending moments.
     
  10. schultzfactor
    Joined: Oct 2013
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    Location: Rotorua New Zealand

    schultzfactor Senior Member

    Latest Pictures

    Ive added some chines and the upper limits of the hull. Now rebuilding and lengthening the Bow a bit.
     

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  11. upchurchmr
    Joined: Feb 2011
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    upchurchmr Senior Member

    Did you ever say what kind of a boat you started with?
    Plans?
     
  12. Yobarnacle
    Joined: Nov 2011
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    Yobarnacle Senior Member

    just lurking. interesting
     
  13. schultzfactor
    Joined: Oct 2013
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    Location: Rotorua New Zealand

    schultzfactor Senior Member

    It was two old Sailing cat hulls some old fella gave me for $50. I cant remember the name, but they were pretty well know. Theres not much left out of them. My plans are hand drawn so cant really upload them. They arent very complex, and im pretty much just feeling my way along and learning as I go. according to the feedback on the post it may not go very well, but I'll see it through and put it down to experience. I plan to do another after this learning project is over. I seem to be learning quite a bit about wood and glassing etc as I go. Maybe the finer details of Hydrodynamics still elude me somewhat.:D
     
  14. schultzfactor
    Joined: Oct 2013
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    Location: Rotorua New Zealand

    schultzfactor Senior Member

    paper tiger, i remember
     

  15. Yobarnacle
    Joined: Nov 2011
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    Location: Mexico, Florida

    Yobarnacle Senior Member

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