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  1. #31
    Join Date
    Jul 2005
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    'Delaide, Australia
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    Default

    I did post this video of the fully reefed goat with two aboard in Florida. It shows how you can go out in a lot of wind and have a relatively docile time because of a deep reef.



    Sailmakers don't understand that a small boat might be sailed for lots of miles in such conditions ... or in more average conditions with less experienced sailors.

    John Goodman and I would not have had such a comfortable fast time in the Texas 200 without that deep reef. There comes the point when you are going so fast even with such a heavily laden boat that the bow looks like it is going to dig into the wave in front. If we hadn't been able to reef fully we would have ended up drying all our gear on an oyster shell islet somewhere and waiting for the wind to reduce.

    MIK

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  3. #32
    Join Date
    Jan 2013
    Location
    detroit, Michigan, USA
    Posts
    25

    Default daggerboard question

    I posted this on the GIS FB page too, but what are the pros and cons of the optional trailing edge taper on the bottom of the daggerboard? I finished shaping the rudder, and just have to frame up two more bulkheads before i'm ready to go 3-D!

  4. #33
    Join Date
    Jul 2005
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    'Delaide, Australia
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    65
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    Default

    The taper makes it easier to get the board into the case.

    It also increases the efficiency of the foil slightly.

    And best of all because of the construction... and shaping template method... it takes no extra time to make a really nice accurate foil.

    The transition between the parallel sided section and the tapered section and the bottom is a smooth curve.

    Best wishes
    Michael

  5. #34
    Join Date
    Feb 2013
    Location
    New London, Minnesota
    Posts
    181

    Default

    phoran - glad to see you are coming along. I need to do the centreboard case before I go 3 D. Probably within two weeks. I have so much stuff done that it will probably go really fast from here on except the sanding and varnishing.

  6. #35
    Join Date
    Jan 2013
    Location
    detroit, Michigan, USA
    Posts
    25

    Default

    oh yeah, the centerboard case. I was saving that until the board was finished. I did put my model airplane building experience to good use, and propped the bulkheads up in their places on the hull bottom. rather than make airplane noises, I imagined a nice beam reach!

  7. #36
    Join Date
    Aug 2010
    Location
    New Jersey, USA
    Posts
    767

    Default Detroit GIS build log

    Quote Originally Posted by Boatmik View Post
    The transition between the parallel sided section and the tapered section and the bottom is a smooth curve.
    Unless you're a deviant like me! Then you get a note from MIK saying, "interesting, wonder why blokes like you can't follow simple directions?"


    Sharp-angled daggers FOR THE WIN!



    Sent from my iPhone using Tapatalk
    Dave
    StorerBoat Builder, Sailor, Enthusiast
    Dave's GIS Chronicles | Dave's Lugs'l Chronicles | Dave's StorerBoat Forum Thread

  8. #37
    Join Date
    Jul 2005
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    'Delaide, Australia
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    65
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    Default

    Quote Originally Posted by davlafont View Post
    Unless you're a deviant like me! Then you get a note from MIK saying, "interesting, wonder why blokes like you can't follow simple directions?"

    Sharp-angled daggers FOR THE WIN!
    Did I do that?

    MIK

  9. #38
    Join Date
    Sep 2007
    Location
    Savannah GA USA
    Posts
    583

    Default

    I confess. I sent it under your name.
    The "Cosmos Mariner,"My Goat Island Skiff
    http://s176.photobucket.com/albums/w168/MiddleAgesMan/

    Starting the Simmons Sea Skiff 18
    http://www.flickr.com/photos/37973275@N03/

  10. #39
    Join Date
    Jul 2005
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    'Delaide, Australia
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    65
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  11. #40
    Join Date
    Apr 2009
    Location
    Hunter Valley NSW
    Age
    69
    Posts
    1,759

    Default

    Quote Originally Posted by Northstar View Post
    phoran - glad to see you are coming along. I need to do the centreboard case before I go 3 D. Probably within two weeks. I have so much stuff done that it will probably go really fast from here on except the sanding and varnishing.
    And don't forget to make the case 3mm wider than the finished width of the daggerboard. Another tip is to use 50mm wide seat belt webbing on the faces at the top and bottom of the case. It has just the right amount of grip V slide for the board. It is 1mm thick. The extra 1 mm allows .5mm swelling of the webbing on either side when wet, something that isn't often taken into account. Happy days...

  12. #41
    Join Date
    Jan 2013
    Location
    detroit, Michigan, USA
    Posts
    25

    Default seat belt webbing

    glued flat to the interior faces of the centercase? or glued to the top and bottom of the centercase slot, like a gasket? also, please note the correct spelling of "center"!

  13. #42
    Join Date
    Feb 2013
    Location
    New London, Minnesota
    Posts
    181

    Default

    Correct American spelling. Not so in other English speaking places. And yes, explain the webbing a little better. Sounds like something I might get into this week.

  14. #43
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    Apr 2009
    Location
    Hunter Valley NSW
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    69
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    1,759

    Default

    Quote Originally Posted by phoran View Post
    glued flat to the interior faces of the centercase? or glued to the top and bottom of the centercase slot, like a gasket? also, please note the correct spelling of "center"!
    Yes, glued (with rubber contact glue) to the top and bottom inside faces of the centre case after you have finished painting the boat. It also acts to prevent the board chafing against the inside of the case and damaging both foil and case. Do for the rudder case as well.

  15. #44
    Join Date
    Apr 2009
    Location
    Hunter Valley NSW
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    69
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    1,759

    Default Detroit GIS build log

    As they say, a picture is worth 1000 words so will send one through shortly.


    Sent from my iPhone using Tapatalk

  16. #45
    Join Date
    Apr 2009
    Location
    Hunter Valley NSW
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    69
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