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Thread: "1290" Class M Hard Multi Chine Hull

  1. #41
    Join Date
    Apr 2005
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    Toulouse (Fra)
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    Default Re: "1290" Class M Hard Multi Chine Hull

    Before fixing the shadows it is necessary to laminate the trunk effort areas as the Rudder, Fin/Mast and Jib.
    Glass fiber 162g/m - added expected weight 65g
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  2. #42
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    Default Re: "1290" Class M Hard Multi Chine Hull

    While waiting for a complete polymerization of previous work, I started building the mock-up for the Peaked Deck.
    Simple shape, but not easy to make unless I'm loosing my manual capacity...!! nevertheless it will look like this picture...
    Later as usual...sanding and packing tape...
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  3. #43
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    Default Re: "1290" Class M Hard Multi Chine Hull

    Since stern and bow are sealed, was a good opportunity the fill the hull with water. I used a blue pigment to get a better view although not very impressive. Filled 4085cm3 of water which is a little bit more then the 4023cm3 as per design. Considering that this volume is based upon the internal hull form, no problems. All in line with the design except that a couple of leaks are found. (second purpose to fill in water)
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    Last edited by claudio; 04-15-2017 at 12:48 PM.

  4. #44
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    Default Re: "1290" Class M Hard Multi Chine Hull

    Peaked Deck under lamination with two layers of 80g/m glass/epoxy and hull weight check. Measured 369g a bit too much, but I need checking.
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  5. #45
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    Default Re: "1290" Class M Hard Multi Chine Hull

    After cutting the deck template and repositioned the peaked deck I found that is not looking nice to my view. For me is too wide. A new one is ongoing !
    Fin top modified and threaded rod integrated with bolts. Tomorrow the bonding with loaded epoxy !
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  6. #46
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    Default Re: "1290" Class M Hard Multi Chine Hull

    Work progressing around the new Peaked Deck and Fin.
    Bottom side of the Fin modified to allow matching with bulb shape at 2 tilt. Preparing for fairing.
    Top side Brass Rod bonded with loaded epoxy.
    Peaked Deck mock up preparation is requiring more time then expected since I desire to integrate a stepping wedge to met the deck bonding.
    Mock up bonded with vinyl glue (for wood) on a piece of Polystyrene Foam for easy handling.
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  7. #47
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    Default Re: "1290" Class M Hard Multi Chine Hull

    Peaked Deck master ready for lamination
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  8. #48
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    Default Re: "1290" Class M Hard Multi Chine Hull

    This morning I wake up with the idea to cut out the slot for the Fin Trunk.
    Later I will try to spray the white primer first layer if temperature in garage is OK.
    Having removed the hull from the support after several days I noticed how much the hull is sturdy.
    I could have gained about 50g using 2 layers instead of 3.
    The actual thickness at the hull bottom around the trunk area reinforcement is of 0.9/1.0mm and this is due to : 3 layers of Glass tissue of 80g/m for the hull + 2 layers of glass of 160g/m around the Fin Trunk area. Final slot dimension 70mm x 13mm
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    Last edited by claudio; Yesterday at 06:13 AM.

  9. #49
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    Default Re: "1290" Class M Hard Multi Chine Hull

    This afternoon I finally went to the garage with 16C, but found on the spray can that the accepted temperature range is 10C to 32C.
    2 layers of Primer at interval of 1/2 hour and the 3rd layer after 1 hour.
    Weight increased only 16g.
    Some pictures below.
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  10. #50
    Join Date
    Jun 2012
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    Portland, Tennessee, USA
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    Default Re: "1290" Class M Hard Multi Chine Hull

    Claudio,

    The chine hull reminds me of a boat that I used to watch occasionally off Southern California many years ago.. It was named "Rag Time" and was a winner in the Trans Pacific race to Hawaii at the time.

    I'll bet that this boat will be fast too; it certainly looks it. You're going to have to paint it "swirl" to keep other skippers from seeing the fast lines of this hull.

    Have you decided on a name?

    Can't wait to hear how quick she is, hopefully she will be a winner on the racing scene.

    Cheers,
    Clark

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