Primaat 24 conversion

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  • 12 Oct 2021 22:38
    Reply # 11412037 on 7891576
    Anonymous member (Administrator)

    Congratulations, looks excellent!!!

    Arne

  • 12 Oct 2021 21:13
    Reply # 11408869 on 7891576

    At least first outing under sail with my Primaat Circé !

    All I was expecting from the junk rig was here : ease of hoisting, ease of reefing, ease of tacking, excellent view ahead, rig very silent. Perfect !

    And I was very lucky that my sail set up very well with few wrinkles, with minimal tweaking of the luff hauling parrel and the yard hauling parrel. The performance was excellent, hull speed with 10-15 knots of wind from astern, and tacking throught 90° upwind.

    I'm a very happy sailor !

    11 files
  • 07 Sep 2021 16:29
    Reply # 10999238 on 10997170
    Anonymous wrote:

     if you don't understand french at least there's a lot of pictures.

    After a few half hearted attempts and telling Google Translate to 'Try Again' more than once...
    voila...a halfway decent English translation to go along with those numerous pictures.

    Thank you for the link.
  • 07 Sep 2021 13:31
    Reply # 10997170 on 7891576

    Hi, thanks for the interest.

    I bought this boat 2 years ago, she was kept dry for 20 years  waiting for her restoration.

    You can see the work in progress in this french forum : http://forum.bateaux-bois.com/viewtopic.php?f=4&t=3801 , if you don't understand french at least there's a lot of pictures.

  • 07 Sep 2021 10:10
    Reply # 10994789 on 7891576

    Just had look back through this post. 
    What a fine wee yacht, looks like a Van de Stadt…and yes it is.  They designed such well shaped hulls, nicely balanced, unlike a lot of more recent designs.  My fathers first yacht was a Pioneer 9m, you could sail that like a dinghy, if one comes up I would be tempted to buy one and junk rig it. 
    You are going to have a great boat when you finished. 
    I would be interested to hear how you have renovated the plywood hull, what condition it was in etc. 

  • 07 Sep 2021 01:57
    Reply # 10988961 on 7891576

    Hi Thomas,

    I think you may want to lengthen the 2nd from top batten at the leech to avoid getting sheets and sheetlets caught by the ones below.

  • 06 Sep 2021 20:41
    Reply # 10984964 on 7891576

    My restoration is almost finished, I struggled a bit on the building of the birdmouth mast, and a good friend sewed the sail.

    In a few weeks I hope to launch the boat, and then hoist the sail.

    1 file
  • 04 Feb 2020 21:03
    Reply # 8726386 on 7891576

    I've started reinforcing the partners. It will be 60mm thick, plus the 30 mm  deck ring. I've doubled the thickness of the deck(2x10mm)  between the beams up to the sheer clamp.

    The mast step will be glued to the keel, to the hull and to the lower frame.

    The new rudder is 10cm deeper than the original, I hope it will be enough for good control.


    For the mast (9.5m high), I want to build it in epicea (spruce), hollow birdsmouth. Using Arnes method for calculating the diameter, I've found max diameter of 19,5cm, diameter at masthead  8cm.)

    For the battens (3.5m up to 4m), I've a seller near me who propose 35x2mm T6 alloy, 230€ the 7 battens. Do you think it's OK ?

    Slowly but surely, it's coming along !

    3 files
  • 02 Dec 2019 09:21
    Reply # 8153083 on 7891576

    With this kind of planform, I believe that you can keep considerable camber all the way to the top -- maybe 4% in the top panel, then 6%, and the rest of the lower panels 8%.

  • 30 Nov 2019 14:59
    Reply # 8146743 on 7891576

    I made a crude paper model of the sail, using Slieve's spreadsheet for calculating the camber in each panel.

    The sailcloth I'll use is 90cm wide, the broadseams are split 2/5 on the first and second seams, 1/5 on the third and none on the 4th.

    I used 8% camber on the 5 lower panels and 6% on the 2 upper panels, but perhaps I should reduce more : 6-4-2 on the 3 upper panels ?

    1 file
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