Weight distribution on a raceboat?

Discussion in 'Powerboats' started by KR9, Aug 19, 2011.

  1. KR9
    Joined: Aug 2011
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    KR9 Junior Member

    If you compare two simular boats.

    1. Side by side seats

    2. Driver in the front and the navigator behind in the middle.

    As a example a 7 m Race rib.

    Air resistance is one thing, and how much will the center of gravity do?
     
  2. Tim B
    Joined: Jan 2003
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    Tim B Senior Member

    You can quite easily work out the effect on the CG, and hence static trim and running trim in calm water. It is harder to calculate the effect this will have on pitch motion in a seaway, which may be more important. The air resistance will primarily be affected by the frontal area of the crew.

    You may need to consider visibility and other constraints as well.

    Tim B.
     
  3. KR9
    Joined: Aug 2011
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    Location: Stockholm

    KR9 Junior Member

    Thanks Tim.

    Not easy for me :)

    The the boat is the ribboat on my avatar, and the front area is big on this one. But how to calculate, when the tubes and the hull is there. Without tubes i understand it is easier...
     

  4. powerabout
    Joined: Nov 2007
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    powerabout Senior Member

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