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Converting my Nordship808 to JR

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  • 01 Apr 2025 10:35
    Quote
    Reply # 13481546 on 13481250
    Anonymous member (Administrator)

    Thomas,
    Now I tried your boat with a copy of the JR I use on my own boat, Ingeborg. The mast position and the original rig’s CE forces me to pull the sail quite far aft. To get a moderate halyard angle of just 15°, I needed to make the mast fairly tall, but still within the length of the pole you have.

    The advantage with going for that sail is that you will find the complete 4-sheet sailplan for it with all dimensions on it. No need for scaling up or down. (https://bit.ly/2FGM0ap )

    Have a look.

    Arne

    (Edit I see now that the mast position was to be 1.75m, not 1.70m from the bow. Those 1.75m is better, of course.)

    (See Arne's sketches, section 8)
  • 31 Mar 2025 18:47
    Quote
    Message # 13481250
    Anonymous member

    After testsailing a JR converted Victoire 26, following Alan Mulholland with his WaveRover and Paul Schnabel's blog on his experience with his JR Ilvy I decided to convert my Nordship 808 to JR.

    I do have as a mast, an aluminum flagpole 11,5m long, 150mm diam. and a wall thickness of 4.5 to 5mm.

    The original sail area of my boat (family rig) is ~ 42 m2, I would think for my single handed ambitions JR with 35m2  would be sufficient.

    Roughly calculated I want to place the mast 1m75 from the bow.

    I can work the complete conversion in my premises incl. sewing with a professional taylor and machine.

    Any information about my project are welcome, particularly about sail design etc. are appreciated

    Thanks, Thomas
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