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Thought Provoking Hull Discussions (one with an aft mast rig)

Discussion in 'General Yachting Discussion' started by brian eiland, Jul 3, 2011.

  1. brian eiland, Jul 3, 2011
    #1
    brian eiland

    brian eiland Senior Member

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    The Universal Hull by Warwick Collins

    ...excerpt...
    After a period of relative stasis in monohull design during the last two decades, I believe we will see revolutionary changes over the next decade, both in general motor vessel hull design and in sailing vessels. These changes will be driven not so much by technology (though that will play a strong supplementary role) but by new, innovative design.

    Meanwhile, I have attempted to test my own predictions by designing and developing an 18 ft prototype which embodies the majority of these principles and which so far has yielded some interesting results. I have called this experimental hull shape, incorporating the developments discussed here, the Universal Hull, or UH for short.

    Article here:
    http://woodenboat.com/boat/?paged=2

    Power video here:
    http://www.youtube.com/watch?v=qK666_3LNuc

    Sailing videos here:
    http://www.youtube.com/watch?v=OUQHQmmdSZc
    http://www.youtube.com/watch?v=R_TEDjFCKJM
  2. AMG, Jul 3, 2011
    #2
    AMG

    AMG YF Moderator

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  3. brian eiland, Jul 3, 2011
    #3
    brian eiland

    brian eiland Senior Member

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    Interesting Lars.

    But I think his underwater hull shape is quite different, ...certainly a more elaborate and pronouned chine region. You can see a portion in this one video:
    http://www.youtube.com/watch?v=R_TEDjFCKJM

    We need to get a copy of that Seahorse article as I understand there are some illustrations there. Regrettibly I no longer subscribe to that publication.
  4. AMG, Jul 3, 2011
    #4
    AMG

    AMG YF Moderator

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    Yes, and I think this is creating drag, not power. Perhaps I should build a small test version of mine before I can be sure though...:rolleyes:
  5. kc135delta, Jul 4, 2011
    #5
    kc135delta

    kc135delta Member

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    The plumb bow and marginal amount of reserve displacement forward coupled with the almost absurd amount of aft displacement is going to make that a very wet, uncomfortable and 'nose diving' ride in steep seas.

    Just a thought/observation
  6. colintraveller, Jul 4, 2011
    #6
    colintraveller

    colintraveller Senior Member

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    I love it .. the builder and there design team have created a simple and effective inshore / inland Motorboat that can be adapted as a Sail boat .. for enthusiasts and sure to be a hit members of local small Sailing clubs



    I would definetly buy that !!
  7. carelm, Jul 6, 2011
    #7
    carelm

    carelm Senior Member

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    Those are both some interesting designs. I think Brian might be onto something in regards to the merging of sail and motor vessel designs. A while back I recall a rather narrow beam aluminium yacht design from Australia. It borrowed some features from sail boat hull designs but was a long-range motor yacht.
  8. brian eiland, Jul 6, 2011
    #8
    brian eiland

    brian eiland Senior Member

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    Please be aware that those are not my designs, but rather "The Universal Hull by Warwick Collins".
  9. carelm, Jul 6, 2011
    #9
    carelm

    carelm Senior Member

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    Hi Brian,

    Thanks for the clarification. You did raise some interesting points however. There have been some other attempts at universal designs with varying degrees of success. At the lower end of the spectrum are the Sabots which can be used as either a sailboat, rowboat or motorboat.

    There also some shade-tree attempts to make a design do something it wasn't intended to do. Some years ago (50+) my father and I thought we could make our canoe into a sailboat. We never got beyond making a pair of leeboards though. This was before kits were available. See picture for an example. We thought it was a good idea at the time, but then reality set in.

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    Last edited: Jul 6, 2011