[Canoe Design] suggestions for canoe design.

Discussion in 'Boat Design' started by michsiba, Sep 15, 2014.

  1. michsiba
    Joined: Sep 2014
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    michsiba ST

    My uncle just bought a lake. :cool:
    and my uncle told to make a canoe for the game. :mad:

    I asked how do you think my canoe design? :?:

    if you have any suggestions any canoe design. I will thank you all.;)

    LOA = 2.17 m
    B = 0,67 m
    D = 0.26

    maxsuurf
     

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  2. NoEyeDeer
    Joined: Jun 2010
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    NoEyeDeer Senior Member

    I think you should get the plans for an existing good canoe and build that instead.

    This is a serious attempt at a helpful suggestion. To put it bluntly, there is so much wrong with your drawing that it would be hard to decide where to start. Build something that is already proven to work. You will be doing your uncle a favour. This may not be what you want to hear, but it's practical.

    If you let people know what building skills you have and which methods you would prefer to use and what the boat has to do, someone can give you recommendations for a design.
     
  3. michsiba
    Joined: Sep 2014
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    michsiba ST

    this my fault.
    I just look at pictures on google. I confidently design such as from 0 :(

    if you say the wrong lot.

    could you please elaborate, whichever is wrong?

    I modeled this child canoe:
     

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  4. messabout
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    messabout Senior Member

    I urge you to get the book; Canoecraft by Ted Moores. The book guides you through the build and provides the offsets for several excellent canoes that will be about as good as they get.

    If your aim is to build the most simple canoe possible, then get the book: The Six Hour Canoe. It is available from several sources, Wooden Boat Magazine among them.

    A canoe that is only 2.17 meters long is out of the question if you weigh more than 30kg. A canoe moves with efficiency because it is long and narrow. The beam of 0.67 meters is fine for a longer canoe but not for such a short one.

    Do what NoEyeDeer has advised. Get the plans for a real canoe, not something that a computer program has drawn. Either of the books I suggested will make a decent canoe. The Canoecraft ones are sophisticated, efficient, and beautiful. The Six Hour one is perfectly suitable when simplicity and small price is concerned.
     
  5. michsiba
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    michsiba ST

    oh my god ;)
    thank you for your suggestion.
    really enlighten me. I will look for the books, just think of the weight problem.

    once again thank you ;)
     
  6. rwatson
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    rwatson Senior Member

    May I congratulate you Michsiba on your response to the suggestions. So many times, new designers get angry when they have their ideas criticized.

    NoEyeDeer and messabout were very direct, but they are correct. By reading the books, you will learn a lot.

    I think it is worth the effort to learn about the principles of boat design.
     
  7. michsiba
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    michsiba ST

    I graduate Naval architecture in 2012.
    I studied design in college cargo ship.
    My uncle wanted to test my knowledge. with told me to make a canoe.
    because up to this day, I do not work.
     
  8. rwatson
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    rwatson Senior Member

    What displacement did you design this canoe for ?
     
  9. Petros
    Joined: Oct 2007
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    Petros Senior Member

    welcome to the forum,

    the behavior of small crafts, such as dingys, canoes and kayaks, is highly dependant on the user, size, skill and even physical characteristics. an inexperianced kayaker can try a kayak designed for a skilled and fit user, and it would be difficult to stay upright and even paddle and steer it. One designed for a beginer would be a slow and disappointing ride for a skilled paddler.

    So first you need to define, even for a canoe, what is your intended use, and the user. cargo capacity, number of paddlers, type of waters (inland lakes, or rough rivers?).

    Your design needs a much flatter bottom, rocker looks okay, but it must be at least about 5 meters for an adult size one that you want to carry more than one person. Max beam would be just under a meter (about 3 ft).

    As stated above, find something that works well and is popular and than study its lines.
     
  10. michsiba
    Joined: Sep 2014
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    michsiba ST

    Displacement 217 kg
    Volume 211732836,8 mm^3

    ;)

    goals made ​​this canoe to the boat playing my young cousin.
    her weight is approximately 20-40 kg. but it would be nice if the adult family members can use it.

    therefore I will try to make my own. if good i will own 5 pieces canoe production.
     
  11. NoEyeDeer
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    NoEyeDeer Senior Member

    Why did you design for over 200 kg if the intended crew is more like 40? Come to think of it, you don't even know her weight to within 20 kg, which is a large margin of error. The boat itself shouldn't weigh more than 20 kg, so total isn't going to be more than 60.

    It's pretty obvious that you really do not know what you are doing when it comes to canoes. Building the thing in the OP would be a mistake. It would not be fit for use, and would just be a waste of time.

    If you want to build something quick and easy, that will perform well with a fairly light crew, start with one of these: Chuckanut 12S
     
  12. rwatson
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    rwatson Senior Member

    The other question is what do you plan to build it out of ?

    The reason I ask is that your has nearly flat sides, but compound curve chines.

    To get the compound curve chines you would need to use a building method that makes the need for 'flat' sides unnecessary.

    As an NA, you would understand the strength and performance issues in flat sided construction on slow moving craft.

    To confuse matters more, you have some very rough 'steps' at the bow and stern, that hint at flat section ( say plywood ? ) construction, which makes it much more difficult to build.

    The least effective characteristic of the hull is the steep V section of the keel.

    This reduces the stability on such a small hull by a huge amount, even making it dangerous.
     

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  13. gonzo
    Joined: Aug 2002
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    gonzo Senior Member

    A flat bottom canoe will give you more stability. Also, it will be easier to build. Saving money on the design is the worst possible decision. If you want to learn design and don't mind building a prototype that will have to be cut, modified and rebuilt several times before it works, then it is a great hobby.
     

  14. JSL
    Joined: Nov 2012
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    JSL Senior Member

    Quite a bit of curvature in the fairbody - deep midbody with shallow ends. Directional stability could be a problem - could 'row' like a coracle. Should amuse your uncle.
    Buy some proper plans of a proven canoe.
     
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