the vector fin proa

Discussion in 'Boat Design' started by fritz roth, Dec 13, 2006.

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  1. fritz roth
    Joined: Dec 2006
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    fritz roth Junior Member

    .

    .... if you are going out with a regular 8' dingy ....

    you will soon notice that >

    either you are going slow
    or you are making a big wake !


    now take a trip on a 16' kayak
    there things are already better

    but its a hassle to get in and out !

    or take a 32' skuller >
    the best in speed
    but you need to stabilise your self constantly
    with your skulls !

    now put a sail on your dingy !

    notice the preformance > like above >
    your are either going slowly
    or are making a big wake >

    meaning energy is wasted !


    or if you increase the lenght
    you have a hell of a problem !

    keeping your boat from ..........

    so ?

    you need an out rigger to have both !!!




    cont >>>>>>>>
     
  2. marshmat
    Joined: Apr 2005
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    marshmat Senior Member

    Umm.... maybe it's just me, but this seems a bit nonsensical? Are you trying to sell us something (if so, what?) or are you just promoting proas in general? What's the deal?
     
  3. Chris Ostlind

    Chris Ostlind Previous Member

    Entschuldigen Sie

    Herr Roth,

    This is just the teaser to the richly presented proa saga, is it not?

    When are you going to show us the pictures?
     

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  4. Mikey
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    Mikey Senior Member

    Well, get on with it. But who needs a vector fin? Waan Aelon Kein seems to sail just fine with just the thousand years of experience it is built upon
     
  5. fritz roth
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    fritz roth Junior Member

    the out rigger

    .



    .... if you just want to ..... paddle around
    with your long and easily driven hull >>

    and do this safely >

    then all you need is an out rigger with a log on one side
    like the polynesians have done so for centuries !

    but if you just try and surf with this
    having the log on the lee ward side

    then on the bottom of the wave the log
    may just be going on and on ............... down ward !

    so ? .... what do you do ?

    make your vessel going both ways !
    then you can always use the log on the right
    meaning the >

    >>> wind ward side <<<< !

    or the wave ward side .....

    then you have a basis for making your sailing vessel
    as well

    the most ideal configuration ....


    cont >>>>>
     
  6. Mikey
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    Mikey Senior Member

    Don't stop though :) I could wait with opening my presents until Christmas when I was a kid so I can wait now.
    Just don't understand why :confused:

    Mikey
     
  7. fritz roth
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    fritz roth Junior Member

    proa

    .


    ..... now ...

    you take your 8' sabot out on the bay ....

    in 15 ktns of wind !

    and you will plane along like a charme !
    with a wake like a destroyer ....

    but as soon as you will have any waves it all
    the fun will be over !


    but if you take out a 16'x 2' hull with an out riger on
    it will be a lot better already !

    like a beach cat .... but half the weight ....

    and now imagine 24' long x 16" !
    no wake to speak of any more ....

    and any wave will just be parted with no fuss it all
    and your ride will be as smooth as with ....

    a boat being twice as long !



    cont >>>>
     
  8. Mikey
    Joined: Sep 2004
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    Mikey Senior Member

    I suppose there were a whole lot of misprints, right? :) :)

    Keep them coming, Fritz, keep them coming

    Mikey
    "I'll be back on Monday"
     
  9. fritz roth
    Joined: Dec 2006
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    fritz roth Junior Member

    the vfp

    .

    ....... now .....

    if you just want to sail in moderate winds
    for a few hours along the way .......

    you will have no problems with your polynesian proa !

    but if gusty conditions prevail
    or you want to eat some lunch in peace .....

    with out constantly watching out for your balance !
    then you need some devise to do this for you ....

    just put your lateral area as well to wind ward
    and shape it >>

    so it will take all the wind forces
    what ever the waves will do to your boat !

    then you will have your speed
    from your lite and slim vessel

    and have the stability as well !

    see www.proadesign.com and links for more .....

    .
     
  10. kach22i
    Joined: Feb 2005
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    kach22i Architect

    Without this thread I would never of found out that a proa is. I mean I' ve known since childhood what an outrigger was, just never heard or read the term proa before.

    Is there a difference between a proa and an outrigger?

    [​IMG]
    http://www.harryproa.com/

    http://www.sailingcourse.com/sailing_html.htm
    [​IMG]
     
  11. Mikey
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    Mikey Senior Member

    I suppose that was work and not life :)

    Mikey
     
  12. Mikey
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    Mikey Senior Member

    It's over, there is no cont >>>>!

    Sad, I have a few quotes left, the next one was supposed to be nice too. Well, never mind, here it comes

    In a way, that could apply to many proa sailors actually. Well almost, just replace dare not with can not.

    A proa doesn't need expensive sails, rig, winches and other equipment (loads on sails and rig are low so there is no need for expensive materials or equipment). They are generally very cheap and also easy to build. Most proa sailors have built their proas themselves, many of they would not be out sailing if they had not. A sailing boat is not a cheap hobby. Proas are fast and it's an interesting sailing experience for the price.

    Someone building a proa for a few thousand dollars gets to sail much more than he who aims too high and thereby gets nothing... :)

    I am not so sure about the Harryproa style proas though, the simplicity is taken away and it's not cheap any longer, it's simply too much money. You really have to be a proa enthusiast to buy something like that.

    Mikey
     
  13. Mikey
    Joined: Sep 2004
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    Mikey Senior Member

    Difference between proa and outrigger

    The outrigger is just the outrigger, it can be a log or a hull, anything that acts as a float.

    Proa is a sailing boat that "tacks" by shunting, you wrote it yourself, if --->

    ---> then it's a proa.

    A pacific proa has the outrigger (ama) to windward and an atlantic proa has it to lee. A proa can have more than one outrigger, few do but it's possible.

    Mikey
     
  14. nero
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    nero Senior Member

    Harryproa not cheap? They use a lot less material than you think. Hull thickness is amazingly thin. Except for his fondness of uni carbon, Rob keeps everything to a minimum. They are designed for an amature to build.
     

  15. Mikey
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    Mikey Senior Member

    http://www.harryproa.com/brokerage.htm

    According to that link, a new Elementarry ex factory is AUS$25,000

    Never sailed one but I bet it is extremely fast, extremely fun to sail, and extremely extreme, but it's also AUS$25,000 for that little boat in the picture.

    All proas use little material to build, I don't see the advantage with that the hull is super thin

    Mikey
     

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