the vector fin proa

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

Thread Status:
Not open for further replies.
  1. fritz roth
    Joined: Dec 2006
    Posts: 33
    Likes: 0, Points: 0, Legacy Rep: 6
    Location: europe

    fritz roth Junior Member

    changing direction

    .


    ..... the drawing shown is the ancient way to do it

    taking minutes !

    see how it is done in the 21 century
    in seconds >

    www.proatech.org

    /change.gif
    change2m.gif
    change3m.gif



    ps >> the first modern out rigger
    was the malibu out rigger designed by warren seeman
    about 50 years ago

    you still can see what they look like
    at the yahoo > malibu outrigger group ....


    pss >>> a harry is already as expensive as a vfp to build !

    just to pay for the plans alone .........

    with out building the harry itself !

    .
     
  2. fritz roth
    Joined: Dec 2006
    Posts: 33
    Likes: 0, Points: 0, Legacy Rep: 6
    Location: europe

    fritz roth Junior Member

    changing direction

    .

    ....... its obvious to see .......

    some here are not interessed in discussing new technology !

    but just to be guarding
    the problems of stone aged concepts


    with the help of miss prints
    non sense
    pre judgements

    and endless miss placed poetry

    so just let them be changing directions as well !



    .
     
    Last edited: Dec 18, 2006
  3. Mikey
    Joined: Sep 2004
    Posts: 368
    Likes: 7, Points: 0, Legacy Rep: 75
    Location: Bangkok, Thailand

    Mikey Senior Member

    The idea is good but I would call it dangerous to invest money in it as a business :)

    Mikey
     
  4. Mikey
    Joined: Sep 2004
    Posts: 368
    Likes: 7, Points: 0, Legacy Rep: 75
    Location: Bangkok, Thailand

    Mikey Senior Member

    Not even this thread is useless, it's informative, ask Kach22i

    Fritz, you were the one starting the poetry stuff... :p

    I admire first of all the simplicity of (most) proas and secondly how fast and well you can make them sail, spending very little resources. If there is a way to improve them and still be able to call them simple, then I want to know. A proa with 3 sails... I don't know.

    Mikey
    I don't have to change direction about proas...
    ... but I do have to change direction when I "tack", if I sail one...
     
  5. fritz roth
    Joined: Dec 2006
    Posts: 33
    Likes: 0, Points: 0, Legacy Rep: 6
    Location: europe

    fritz roth Junior Member

    3 sails !

    .

    ........ actually .........

    you need no 3 sails to have a vfp !

    but why in heavens ?
    would any one want to be left with a single sail ?

    where you have a much longer time to spend changing directions !

    where you can not turn on the spot with !
    when manuvering in crowted harbors
    anchoring ....

    where you have not the perfect selfs steering ?

    so ........ why not have them ?

    they are not much more to do
    then one big one .........


    ps ..... if I knew .........

    this tread wouldnt be of some ones use
    I would not write them up !

    but about > the useless information < ?

    I cant subcribe to !

    and that this world is to set in its track
    to make an ideal solution a viable bussiness proposition >

    this I cant either ........
    because this planet can do what ever it wants to >

    I am surely not stupid enough to compete with !


    pss ..... thanks for the compliment ...........

    I never though of my writing as poetry before !




    .
     
  6. Chris Ostlind

    Chris Ostlind Previous Member


    Don't get all misty on us, Fritz. I think the poetry reference is more about the fact that your written stuff is so free associative when compared to what most people call normal, written communication. There's a fairly big jump to poetry from there.

    What I want to know is this... do you speak in this fashion as well?
     
  7. fritz roth
    Joined: Dec 2006
    Posts: 33
    Likes: 0, Points: 0, Legacy Rep: 6
    Location: europe

    fritz roth Junior Member

    ????

    .


    ......... I thought ..........

    this was a design forum !

    where people discuss technical aspects of what ever boat type
    they may be talking about ????







    ps ..... I talk like any other .........
    and write like any other human !

    the difference seems to be in the content !


    .
     
  8. Mikey
    Joined: Sep 2004
    Posts: 368
    Likes: 7, Points: 0, Legacy Rep: 75
    Location: Bangkok, Thailand

    Mikey Senior Member

    I was actually enjoying the opportunity to post Oscar Wilde quotes... but the style was a bit irritating, not as bad as in the proa_file community though where Herr Roth was placed on moderated posts today

    *************
    FYI to the Proa_file community: I have placed Fritz Roth on moderated
    posts. He is still a member of this group, and may still post
    messages. His messages will be reviewed for appropriate content, and
    inappropriate content may be edited out. This is his choice, as he has
    repeatedly ignored my requests to moderate/tone down his posts
    himself. He may be returned to regular posting status when he
    demonstrates that he will moderate his own conduct on this forum.

    It is my sincere desire that every member feels safe in posting their
    opinions and questions without fear of ridicule and personal attack. I
    will continue to moderate this group to that end. Certainly if anyone
    feels I am doing this in an unfair fashion, he or she may bring this
    to my attention, to the group owner, or to the entire Proa_file community.

    Thank you and have a great day,
    Marc Ellsworth
    Moderator
    *************
     
  9. fritz roth
    Joined: Dec 2006
    Posts: 33
    Likes: 0, Points: 0, Legacy Rep: 6
    Location: europe

    fritz roth Junior Member

    thanks !

    .

    ......... for giving me the opportunity to make this public >>>>


    the > propaganda file < has no interest in any technical discussions !
    just as no one on this planet has the courage to do any thing right !

    and just as the catastrophies here
    is only making propaganda

    on what they have been told before ...........



    >>> I am of cource no longer a member of the > propaganda file < group ! <<<






     
  10. proabum
    Joined: Jul 2007
    Posts: 9
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: Andrews, NC

    proabum Junior Member

    Proa Stability

    Here's what we have done to add stability and it works fine. We can stand, walk around. The picture shows the version with our electric motor, but we can put a sail on it when we are going where there is wind. Believe me, some lakes in western NC, don't have much wind.
     

    Attached Files:

  11. messabout
    Joined: Jan 2006
    Posts: 3,051
    Likes: 237, Points: 63, Legacy Rep: 1279
    Location: Lakeland Fl USA

    messabout Senior Member

    Fritz must surely be smoking 'funny' cigarettes.
     
  12. proabum
    Joined: Jul 2007
    Posts: 9
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: Andrews, NC

    proabum Junior Member

    I'm sorry, I'm not much good at this......I thought I was replying to a thread concerning stability. Again, I'm sorry..........BTW, what's a "funny cigarette"?
     
  13. proabum
    Joined: Jul 2007
    Posts: 9
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: Andrews, NC

    proabum Junior Member

    Ol' Fritz sounds like that guy on Pirates of the Caribean........are you a pirate Fritz? The thing about sailing a proa is the simplicity of it. I have seen them out in the ocean, between islands in the South Pacific, where you couldn't see land anywhere, yet they seem to do quite well. Why complicate the thing by adding multiple sails. In close proximity to other craft, drop the sail and pick up the paddle!
     
  14. rob denney
    Joined: Feb 2005
    Posts: 755
    Likes: 111, Points: 43, Legacy Rep: 436
    Location: Australia

    rob denney Senior Member

    G'day,

    Extremely everything you say, including pricey. The reason for this is we build them as one offs. If Hobie were to build a one off Hobie 20, it would cost a lot more. If we were to build thousands, the cost would be the same as a Hobie. Amateur built, they are very cheap. There is a $US6,000 Elementarry preparing to sail round Aus this summer. The really cheap proas (construction ply and housepaint hulls, 4 x 2 planks for the beams and tarpaulin sails) seldom further offshore then their owners can swim.

    The Elementarry in the photo has had a few changes, and currently only has one of the rigs, mounted in the middle. It is a test bed for ideas for my solo Transpac 50 footer, currently being built for launch in October. http://www.harryproa.com/SoloTranspac/Solitarry1.htm

    There is a video of a heavy (3 tons) cruising 50' harryproa at windspeed at http://www.youtube.com/watch?v=8chR6DAFjGA

    The cost of Harryproas is low compared to cats of similar space and/or performance for a number of reasons.
    Simple to build hull shapes and beams,
    Simple rigs, \
    Half the weight, so half the materials of a similar size cat, and plans which allow the builder to build almost everything hinself.

    Regards,

    Rob Denney
    www.harryproa.com

     

  15. messabout
    Joined: Jan 2006
    Posts: 3,051
    Likes: 237, Points: 63, Legacy Rep: 1279
    Location: Lakeland Fl USA

    messabout Senior Member

    Aw come on Proabum. Every one knows that a funny cig is one made with cannabis or some other substance that tends to induce silliness..
     
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.
Thread Status:
Not open for further replies.