Wishbone rig / ketch

Discussion in 'Sailboats' started by Georgstrasser, Nov 23, 2006.

  1. Georgstrasser
    Joined: Nov 2006
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    Location: Germany

    Georgstrasser Georg Strasser

    Hello everybody,

    we are planning a 65ft ketch. Designer Georg Nissen in Germany. Appearance like a pilot cutter, modern underwater body. We think of a ketch-rig with a wishbone staysail at the foremast. Instead of a common mainsail. So we would have a 110% jib, staysail, wishbone staysail, mizzen.
    Reasons for this concept are multiple sail plan, no sail bigger than about 60sqm, so easy handling without too much of electric, hydraulic winches is possible.
    Question: Experiences about upwind ability of such a concept? Experiences in handling a wishbone staysail?
    Thanks for any reply.
    1 person likes this.
  2. yipster
    Joined: Oct 2002
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    Location: netherlands

    yipster designer

    dont have experience with the concept
    i was in medemblik and dusseldorf tho
    and like to stay updated here
    Joined: Oct 2002
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    Location: Conn in summers , Ortona FL in winter , with big d

    FAST FRED Senior Member

    Most boats with this rig have the wishbone staysail trimmed to the mizzen, which means one mast may take down the other.

    There is concern with the wishbone left aloft in a blow.

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

    brian eiland Senior Member

    Mainsail-less Ketch

    Please clarify for me. Are you planning a double-headsailed ketch with a wishbone boomed staysail in place of the conventional mainsail??
    ...or is your staysail and wishbone staysail to be included in the space of the conventional mainsail??

    ....an excerpt from a discussion on my website promoting a mainsail-less ketch, "Conventional booms excessively flatten the foot of the mainsail, and are often oversheeted, contributing significantly to the leeway forces. I once had a copy of a test on a Morgan 41' Out Island ketch , where upon removing the mainsail, the boat lost only 1/2 knot of speed, but cut its leeway in half (from 11 to 6 degrees). A staysail was then rigged between the masts in place of the mainsail, and the boat regained 1 knot of speed while retaining its decreased leeway.

  5. Georgstrasser
    Joined: Nov 2006
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    Location: Germany

    Georgstrasser Georg Strasser


    to make it simple, I attach the sailplan of my architect.


    Attached Files:

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