Affordable seaworthy cruiser

Discussion in 'Boat Design' started by goodwilltoall, Jul 31, 2010.

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  1. BATAAN
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    BATAAN Senior Member

    This recent movie set for a famous Pirate film was dimensioned from VASA and all the months we worked aboard, often at sea under tow, we worried about the consequences. It didn't roll over but we almost lost it on the beach one stormy night.
     

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  2. gunship
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    gunship Senior Member

    Haha! Really dimensioned from Vasa? You're lucky you diddn't try to sail the thing. That's what the Admiralty inspector said about Vasa when they had to abort the stability tests: "May she never catch anything more powerful than a gust"
     
  3. goodwilltoall
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    goodwilltoall Senior Member

    Greetings,

    Thankyou for the positive comments and will chew on them.

    Scale model was mentioned before but would do it for sail model instead.

    Peter, if thats your idea of SOR its about right. Shower location is to get standing headroom right where deckhouse begins. Guess budget would be buck a pound. Since this is primarily engine powered, whats the reason for adding ballast.

    Full keel rather than steel, purpose is for rudder protection, shaft tube, roll control, and would add longitudinal stiffness. Cheap to build with stacked 2x6 or 2x8.

    Bottom of swing mast would be just above waterline (not as shown on drawing) with drain tube at bottom running alongside edge of berths to exit water.

    Smoke stack would be on oposite side as well as door swing.

    If wanting to add shipping systems go ahead, just trying to keep things simple for initial costs and ongoing maintence.
     
  4. BATAAN
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    BATAAN Senior Member

    It had no rudder, was flat-bottomed, and no rig above the courses, but was often under way with sails billowing. The applied carved foam decoration was outrageously good, by Hollywood's best.
    Unfurling and setting the foot-thick vinyl covered ghost-ship 'sails' was always an adventure. Not having any real iron cannon aboard helped with the stability. I was so very glad when we were done filming and I could walk away.
     

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  5. BATAAN
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    BATAAN Senior Member

    Idea of a flotational model is to get the weights and trim right, and it's a very important design tool because it's 3D and dynamic, responding to floating just as the actual design would.
    Personally I would never build a new motorboat design without one, as paper is 2D and so very many things go wrong not to be seen until the boat is set up and building. Westy started his career in boat design in 1919 and knew more of it than most, having been employed by Gibbs, Newport News Shipbuilding, Elco, Annapolis-Vosper, Burger and Palmer Johnson. He said the technique had saved his *** many times.
     
  6. goodwilltoall
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    goodwilltoall Senior Member

    Bataan,

    Thats wise advice, model should be built before actual boat.

    Just noticed, bestowed the honor of "Senior member", Thankyou.

    Peace.
     
  7. michael pierzga
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    michael pierzga Senior Member

    And the best part of models is that they are Fun !! stop by one of those model airplane shops and pick up some stock. The superthin plywood and super glue is great for little models.
     
  8. Pierre R
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    Pierre R Senior Member

    I see the buget hasn't changed since day 1 either. A buck a pound was your orginal budget wasn't it? You better be shopping at Building 9 down on South Main in Akron. They have a lot of surplus stuff like plywood. I once bought marine grade 1/2 birch plywood down their for $8 per sheet back in 2003. Price are down right now.

    My guess is as hard as you try you will not break $3 per lb. Don't put too much money in this things as its not gonna work like you think it is and you will be glad you didn't sink too much in.
     
  9. apex1

    apex1 Guest

    Buck a pound, there we are again..........

    Decent boat is ten times that, when everything goes well. 3$ does not make a blue water boat, no matter where one steals the material.

    Why are there always members calling me unpolite when I hammer on those dreamers? It is just not possible to cheat life.

    People like Vulkyn, catbuilder, M&M Ovenden, and others receive every possible assistance, every possible source of knowledge and materials by us. They even sometimes get our "secrets". But those people ask, they do not tell us pro´s why the water boils!!!

    Goody, leave it!

    Buy a rotten junk at about the value you have at hand, and live the next 40 years on it, dreaming about ocean crossings. It takes just pennies to keep it afloat, and you are in a nice community. They will soon notice, it is cheaper to give you the outworn crap, than dumping it.
    This way, you become a part of the "sailing" community, without risking your (not so important) and others lives (very important).

    Now Sabahcat, and other bigmouthes, hammer again on my inpoliteness, and call me a ****! You are obviously familiar with ****´s sabah.....
     
  10. Pierre R
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    Pierre R Senior Member

    I had more in mind that $3 will get you floating in Lake Erie. He will never make it to blue water with that boat anyway. My guess is you are about right at the $10 figure.
     
  11. gunship
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    gunship Senior Member

    Doesn't the Old Testament say anything about the $/lb. of Noah's ark?

    seems to make as much sense as anything in this thread...
     
  12. apex1

    apex1 Guest

    3$ gets him afloat anywhere in the world, not per pound, per life. A Chinese air matress and here we are. In my humble opinion there is no difference in seaworthiness, between a air matress and a boat designed to noahs plans. And if the only one camel (not a couple) on board is the owner / builder, it is not necessary to be better.

    <removed>

    Regards
    Richard
     
  13. Pierre R
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    Pierre R Senior Member

    Come on now Apex1, all that dimension lumber will float. Remember he doesn't intend to have ballast in a 15 meter sail boat with a 2.5 meter beam and 0.4 m draft. He won't have anything in it that costs enough money to sink on its own except the nails. :D
     
  14. apex1

    apex1 Guest

    Hmm, yes I stand corrected.......

    All that lumber WILL float. No matter if god has proven it to be in class.
     

  15. Pierre R
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    Pierre R Senior Member

    Come on Richard, here is an affordable boat sans Sabahcat. Come on 3 bucks a pound.
    [​IMG]
     
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