New Age Trawler/Motorsailer; Kite assisted PowerYacht

Discussion in 'Boat Design' started by brian eiland, Nov 20, 2007.

  1. brian eiland
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    brian eiland Senior Member

  2. T0x1c
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    T0x1c Junior Member

  3. kach22i
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    kach22i Architect

    UPDATE: 09/30/13

    Meanwhile, in related news back on land.

    Wind-powered car completes 3,100 mile test ride across Australia
    http://phys.org/news/2011-02-wind-powered-car-mile-australia.html
    [​IMG]
    [​IMG]
     
  4. Mr Efficiency
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    Mr Efficiency Senior Member

    Crazy ! Hooking up to a passing road train would be fun.
     
  5. peter radclyffe
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    peter radclyffe Senior Member

  6. skatun
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    skatun Junior Member

    Hi
    I am wondering if any have some ideas on how to launch the kite from the boat without the need of a helper.

    Sigurd, er du norsk?
     
  7. Herr Kaleun
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    Herr Kaleun Junior Member

    HOISTING/STREAMING A KITE FROM A VESSEL.

    For a sailing vessel, I would suggest that the design of kite be such that it has a horizontal cell, that can be inflated to go rigid, thus acting like a spar to the wing. With a quick release fitting [...poss remote control? Or maybe a slip-hitch on the falling part of the tow-cable] attached to a halyard rove through a pulley high up on the forward facing part of a mast, with a trailing main 'tow-cable' obviously affixed to a fore-deck fitting.
    Attached to the quick release fitting would be a shackle-runner, that would run the course of the forestay.

    Inflate cell/spar, hoist atop, up the forestay [much like hoisting a square'sl], when kite fills/catches the wind, activate release[...either electrically or by tugging on the falling part of the tow-cable, releasing the slip-hitch] and allow to pay out to desired height. [gloves might be prudent...]

    The same system could work from a motor vessel, if it has high enough fore mast.

    Does any of that make sense?:confused:
     
  8. brian eiland
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    brian eiland Senior Member

    Just looking back thru this subject thread,...there were lots of good discussions and links. Its worth a read by those that have never thought about this subject.

    But I guess our low fuel prices over the last 3-4 years have stymied a lot of new development work.
     
  9. brian eiland
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    brian eiland Senior Member

    [​IMG]

    Has anyone seen the latest article on the 276 ft tri-hull motoryacht "White Rabbit" in Boats International mar 2019,....a real eye opener in terms of sea keeping and efficiency.

    This is the same BOLD owner that had the first White Rabbit built. Perhaps I will have the extract a few passages to this article, as it also addresses the MYOPTIC view a great number of non-believers have adopted from early on.
     
  10. brian eiland
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    brian eiland Senior Member

    I have written an email to the author of that Boating International article asking his permission to utilize some of his quotes from his article. The opening sentence in his article really caught my attention,...

    I had a feeling this was going to be interesting :cool:
     
  11. bajansailor
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    bajansailor Marine Surveyor

    These big trimarans certainly do seem to have a lot going for them re relative fuel efficiency and sea keeping.
    Austal have built a few as ferries -
    Benchijigua Express https://www.austal.com/ships/benchijigua-express
    Click on the link to the data sheet for more detailed info about her.

    Some basic info about White Rabbit here -
    WHITE RABBIT https://www.boatinternational.com/yachts/the-superyacht-directory/white-rabbit-golf--81573

    Here is an article about White Rabbit from November last year -
    World's biggest trimaran superyacht White Rabbit delivered https://www.boatinternational.com/yachts/news/worlds-biggest-trimaran-superyacht-white-rabbit-delivered--24541

    And one can buy the March issue referred to above by Brian for GBP 7 -
    Boat International 393 (March 2019) - Boat International https://shop.boatinternational.com/Shop/Product.aspx?offerId=410&sId=10
     

  12. brian eiland
    Joined: Jun 2002
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    Location: St Augustine Fl, Thailand

    brian eiland Senior Member

    I got permission from the author of that Boat International article to post some excerpts from his article. I will likely do that in the next several days.
     
    bajansailor and Niclas Vestman like this.
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