Quant 23 Foiler Scow

Discussion in 'Sailboats' started by Doug Lord, Jun 8, 2015.

  1. Doug Lord
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    Doug Lord Flight Ready

    This boat is just beginning production and is the largest production monofoiler in history. It is being developed by Michael Aeppli and Quant Boats. Hugh Welbourn designed the boat. See the pdf below:
    click for best view:
     

    Attached Files:

  2. Doug Lord
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    Doug Lord Flight Ready

    Quant 23

    This boat is also the very first fully foiling keelboat!
     
  3. pogo
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    pogo ingenious dilletante

    Indeed, very interesting !
    Good finding Doug, thanks.

    pogo
     
  4. Doug Lord
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    Doug Lord Flight Ready

    You're welcome!
     
  5. pogo
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    pogo ingenious dilletante


    Do you think that the ballastbomb is necessary, i don't.
    It's a monomaran.



    pogo


    P.S.
    I've sailed non ballasted centerboarders ---monomarans!---up to 10m half of my life , racers and cruisers--- Jollenkreuzer.

    See Waterlinebeam of a modern 30er cruiser/Racer, like a heeling scow:
    http://www.yacht.de/typo3temp/pics/c_bcf54f80e8.png
    http://www.bootswerft-christen.de/30-jollenkreuzer.html
    Those box rulers really show what evolution means. Steel 25er c/r ,designed in the 40s ( sistership of my old boat :)
    http://fky.org/marktplatz/bootsmarkt-angebote/mueller-r.htm
    30er cruiser;steel
    http://30erjollenkreuzer.de/
     
  6. pogo
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    pogo ingenious dilletante

    Searching pix of the first foilborne monomaran--conversion of a 470 standard dinghy by frenchman Claude Tisserand in 1974--i found more about quant:

    http://www.quant-boats.com/news.html

    pogo
     
  7. Doug Lord
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    Doug Lord Flight Ready

    ====================
    Michi says it's there so the boat won't turtle.......
     
  8. Doug Lord
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    Doug Lord Flight Ready

    ===================
    The first monofoiler, I thought, was Frank Raisin's Moth*.
    I was wondering if those guys were trying to find a clever way to use DSS without paying the royalty-I hope Hugh nails them.....

    *UPDATE: Frank Raisin-the first foiling Moth-1972: http://www.foilingweek.com/2015/04/march-1972-the-first-foiling-moth/
     
  9. pogo
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    pogo ingenious dilletante


    Phhhhh ...:p:p:D:p

    It's an alibibomb.

    Ik denk ik prei 'n Michi ma' direktemang an.
    ( Ich glaube ich spreche den Michael einmal direkt darauf an)




    pogo ( multilingual multihuller)
     
  10. Doug Lord
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    Doug Lord Flight Ready

    From Scuttlebutt last night:

    Designer Hugh Welbourn has spent more than 10 years developing the patented Dynamic Stability System (DSS), which comprises a retractable hydrofoil that is deployed to leeward on a yacht.

    The foil provides vertical lift to leeward, improving the yacht’s righting moment, an effect similar to having extra crew on the weather rail or a bigger keel bulb, and in turn dramatically increases performance.

    DSS foils feature on a wide range of racing yachts such as multiple Rolex Sydney Hobart winner, Wild Oats XI, to the high performance Infiniti range of racers and cruiser races to sportsboats, Minis plus all manner of craft between.

    However the very latest DSS foils not only provide righting moment, but extra vertical lift beneath the boat too.

    In its first preliminary sea trials in Cowes last week, the Quant23 has proved itself to be one of its first – if not THE first – fully foiling keel boat. The DSS foils, in combination with a T-foil rudder, has enabled the Quant23 to sail fully airborne.

    - See the rest of the article at: http://www.sailingscuttlebutt.com/2...ne Its A Flying Keelboat#sthash.8jXYNuOu.dpuf
     
  11. Tom.151
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    Tom.151 Senior Member

    Quant23 and Hammell's Zipper

    A bit striking to me anyway - how the hullform is so reminiscent of the scow I've been using as a prototype for my own 18' scow.

    The "Zipper" scow was developed by Dave Hammel (MIT) and Sam Rabl

    See attached
     

    Attached Files:

  12. Doug Lord
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    Doug Lord Flight Ready

    Very interesting,Tom-thanks!
     
  13. Tom.151
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    Tom.151 Senior Member

  14. Doug Lord
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    Doug Lord Flight Ready

    Much better, Tom. Thanks again.
     

  15. Doug Lord
    Joined: May 2009
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    Doug Lord Flight Ready

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