Sailboat Design project - lake use

Discussion in 'Boat Design' started by Dr Kung Pao, Jan 20, 2010.

  1. Dr Kung Pao
    Joined: Jan 2010
    Posts: 14
    Likes: 2, Points: 0, Legacy Rep: 32
    Location: Boise Valley

    Dr Kung Pao Junior Member

    Just thought I would say Hello to everyone and show my design so far. I am just in the beginning phases of putting together a 2 person cruiser for use on protected waters.

    The main goals are to make a mellow cruiser for summer picnics and potential sleepovers on the lake.

    [​IMG]

    [​IMG]

    [​IMG]

    Feel free to lampoon me, I'm a pretty large target and was born and raised in the desert :cool:

    any reflections good or bad will be appreciated !

    -Jacob
     
  2. haru
    Joined: Jan 2010
    Posts: 50
    Likes: 1, Points: 0, Legacy Rep: 21
    Location: Terra

    haru Junior Member

    Nice and exotic.

    The keel seems to be good for balance, but the bow may be a problem in bad weather. I feel the stern is too open and stronger wind might cause control problem.
     
  3. Dr Kung Pao
    Joined: Jan 2010
    Posts: 14
    Likes: 2, Points: 0, Legacy Rep: 32
    Location: Boise Valley

    Dr Kung Pao Junior Member

    Thanks Haru! Do you think it comes down to too fine of a point? The intent isn't to have it about in rough weather, however its alot of work to make a boat for sailing just a few times a year. I would rather have the versatility of a better rounded design, even if she wont be put into rough weather very often.

    Regarding the stern, would you suggest tapering it more and trying to inclose it? There is a removable cover I designed to go over it however I could almost see that making the wind situation worse.
     
  4. Kaluvic
    Joined: Jan 2010
    Posts: 123
    Likes: 3, Points: 0, Legacy Rep: 32
    Location: Yemen and Lebanon

    Kaluvic New guy

    Not sure I'd describe it as a "Mellow" cruiser....kinda cool...but not sure I get it.
    The stern bears some resemblance to my Dhows
     

    Attached Files:

  5. ancient kayaker
    Joined: Aug 2006
    Posts: 3,497
    Likes: 146, Points: 0, Legacy Rep: 2291
    Location: Alliston, Ontario, Canada

    ancient kayaker aka Terry Haines

    The hull is certainly unusual, highly experimental at first glance. I tried to figure out your intent or message but I have to admit I don't get the joke.
     
  6. Dr Kung Pao
    Joined: Jan 2010
    Posts: 14
    Likes: 2, Points: 0, Legacy Rep: 32
    Location: Boise Valley

    Dr Kung Pao Junior Member

    that it does Kaluvic. Thats a sweet looking Dohw! I love the design of these. Which part is confusing you? Maybe my definition of mellow is a little different then most LOL.

    Please say Hi to Lebanon for me. I <3 Beirut!
     
  7. Dr Kung Pao
    Joined: Jan 2010
    Posts: 14
    Likes: 2, Points: 0, Legacy Rep: 32
    Location: Boise Valley

    Dr Kung Pao Junior Member

    [​IMG]

    Back view with too large of an area for the rudder.

    I guess I wasn't really trying to make a joke, however bringing a smile to someones face can't be all that bad. Maybe more time around sailboats could be the prescription.
     
  8. mcollins07
    Joined: Jan 2006
    Posts: 220
    Likes: 11, Points: 0, Legacy Rep: 166
    Location: Texas

    mcollins07 Senior Member

    Wedge hull

    I played with some wedge shaped hulls just as an exercise. See pic below. 12 degrees transverse is supposed to be minimum resistance according to a study on the Internet. sorry I don't have the reference. I seem to remember letting the stern turn up at about 60-62% of Lwl gave good hydrostatic parameters.
     

    Attached Files:

  9. messabout
    Joined: Jan 2006
    Posts: 3,073
    Likes: 246, Points: 63, Legacy Rep: 1279
    Location: Lakeland Fl USA

    messabout Senior Member

    If you do wish to have a boat for the purposes that you describe, then use a conventional design that has a history of satisfactory behavior and performance. If you go way out into left field, as it appears that you have, the odds of being pleased with the result are stacked far too heavily against you. If Bizarre design is your cup of tea then do what you are doing but do not expect great results.

    One more thing! Plan for the worst weather and water conditions. Expectations of good weather and the option and time to run for cover is not the way the real world works. Naivete' about such things has led to the demise of many nice people.
     
  10. Dr Kung Pao
    Joined: Jan 2010
    Posts: 14
    Likes: 2, Points: 0, Legacy Rep: 32
    Location: Boise Valley

    Dr Kung Pao Junior Member

    Thanks mcollins07. Thats some good stuff. That shape looks very familiar. :)

    Messabout you make some very valid points for sure. Maybe I should buy or build a boat as you say of more proven performance for the purpose of family time and then design this as a one person trial or "experimental" craft. I like the way that sounds.

    I think I'm going to go ahead and design a small cabin for it and set about making a plan of attack for building. Bizarre design does happen to be on my menu of delights. :)
     
  11. mcollins07
    Joined: Jan 2006
    Posts: 220
    Likes: 11, Points: 0, Legacy Rep: 166
    Location: Texas

    mcollins07 Senior Member

    What about adapting to a trimaran?
     
  12. Dr Kung Pao
    Joined: Jan 2010
    Posts: 14
    Likes: 2, Points: 0, Legacy Rep: 32
    Location: Boise Valley

    Dr Kung Pao Junior Member

    thats defnately an interesting idea. that seems to make some real good sense to me ! hmmmm
     
  13. Dr Kung Pao
    Joined: Jan 2010
    Posts: 14
    Likes: 2, Points: 0, Legacy Rep: 32
    Location: Boise Valley

    Dr Kung Pao Junior Member

    hey mcollins07, ady gil was a wedge shaped hull if I am remembering correctly. She sliced throught the waves good enough. Obviously I am not comparing my juvenile design skills with the designers of her however the concept has to be worth something!

    Not only that but it has some trimaran charachteristics as well.

    cheers!
     
  14. matt H.
    Joined: Jan 2010
    Posts: 29
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: lake elsinore

    matt H. Junior Member

    your design seems to push a lot of non buoyancy area forward in hopes
    of cutting before floating

    its kinda cool :)
    its also has kind of a cultural architectural attribute thing that might work
     

  15. mcollins07
    Joined: Jan 2006
    Posts: 220
    Likes: 11, Points: 0, Legacy Rep: 166
    Location: Texas

    mcollins07 Senior Member

    Yes, I think the concept could be migrated into a reasonable trimaran design. The trimaran audience is fairly open to experimental deisgns. There is a good bit of technical data on the internet for trimarans.

    I would consider Building a boat to use, and Learning Boat Design, two different paths. Either one can take a number of years. However, either one can be very enjoyable, in my opinion.

    How did you go about building your paper model? Have you put your design into FreeShip to look at hydrostatics and hydrodynamics?
     
Loading...
Forum posts represent the experience, opinion, and view of individual users. Boat Design Net does not necessarily endorse nor share the view of each individual post.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Your circumstances or experience may be different.