small boat fundamentals

Discussion in 'Boat Design' started by nichola89, Mar 25, 2014.

  1. nichola89
    Joined: Mar 2014
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    Location: indonesia

    nichola89 New Member

    hello, im from mechanical engieering, i want to ask how to find
    a. center of gravity
    b. center of boyancy
    c. draft boat

    example of boat is this:
    [​IMG]
    after that i want to experiment if i put 1,2,3,4 person in the boat, that boat sinking or not...

    any reference article/pdf for small boat?
     
  2. DCockey
    Joined: Oct 2009
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    Location: Midcoast Maine

    DCockey Senior Member

    The center of gravity of a boat can be found by several different methods, including inclining tests in the water, inclining tests on land, and calculations using the weight and center of gravity of the individual components of the boat.

    Buoyancy is a vertical force which passes through the centroid of the submerged volume. The centroid of the submerged volume is called the center of buoyancy.

    The magnitude of the buoyancy equals the weight of the water displace by the boat, which is equal to the submerged volume of the boat multiplied by the density of the water. If the boat is floating and stationary the buoyancy will equal the weight of the boat. Therefore the weight of the water displaced by the boat will equal the weight of the boat. The draft is will be the deepest part of the submerged volume.

    Perhaps someone else knows of a good online reference with more information.
     
  3. Mr Efficiency
    Joined: Oct 2010
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    Location: Australia

    Mr Efficiency Senior Member

    Even having all this information, it is important to heed the words of the old song.........
    "So I'd like to know where, you got the notion
    Said I'd like to know where, you got the notion


    To rock the boat, don't rock the boat baby
    Rock the boat, don't tip the boat over
    Rock the boat, don't rock the boat baby
    Rock the boat-t-t-t-t"


    :D
     
  4. lewisboats
    Joined: Oct 2002
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    Location: Iowa

    lewisboats Obsessed Member

    I think the reference will be lost... I don't think old 70's disco from the US is going to strike any familiar chords in Indonesia
     

  5. lewisboats
    Joined: Oct 2002
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    Location: Iowa

    lewisboats Obsessed Member

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