speed boat design

Discussion in 'Boat Design' started by tonipu, Jan 12, 2021.

  1. Mr Efficiency
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    Mr Efficiency Senior Member

    Well, I doubt that would be called a valid test of much at all. You might get some idea by making a larger model, self-powered, remote radio control, and running that in slightly choppy water, at various angles to the waves, that is quite different to towing something along in the eddying wake of a boat. If you tested a few different models like that, you might start to get a feel for the comparative differences. But why can you not just find either existing boats, or existing plans, that suit your end use ? This is more like starting from first principles, when others have already tread this ground many times.
     
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  2. tonipu
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    tonipu Junior Member

    Yes i know towing have some limitation, It is long story to explain all the story because i chose to go this way, i awere i can fail without some prove design. But now i chose this way. Maybe i test with bigger model.
     
  3. tonipu
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    tonipu Junior Member

    Did you sea second video, is lot behind boat wake
     
  4. Mr Efficiency
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    Mr Efficiency Senior Member

    I just watched the one from the side, were you towing that with a kind of bridle from where the COG is ?
     
  5. tonipu
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    tonipu Junior Member

    Yes, i think i mathed cog
     
  6. Mr Efficiency
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    Mr Efficiency Senior Member

    Can you elaborate on the reasons for going down this path of self-designing ?
     
  7. standman
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    standman Junior Member

    Your design is very like the first boat I built with almost the same length and beam, Although I powered it with 2 x 200HP outboards. Your 25--28knots goal should be easily achieved. Best of luck to you.
     
  8. tonipu
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    tonipu Junior Member

    Do you have any picture
     
  9. standman
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    standman Junior Member

  10. tonipu
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    tonipu Junior Member

    I see, very nice. How are you happy with performanse and sea keeping?
     
  11. tonipu
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    tonipu Junior Member

    Can you tell me more
     
  12. standman
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    standman Junior Member

    She goes through waves nicely and is a very comfortable ride even in choppy waters. Rarely feel any slamming. With strong winds at an angle, it can be a wet ride but pushing the throttle up a bit which forces more volume of water to spray away, then it isn't a wet ride anymore. Overall, I'm happy with it
     
  13. tonipu
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    tonipu Junior Member

    deadrise angle seams 15 degre? what is the weight?
     
  14. standman
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    standman Junior Member

    yes 15degrees and about 5.7 tons loaded
     

  15. tonipu
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    tonipu Junior Member

    and speed ? max, cruising? lenght? beam?
     
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