Nordica Halman 20 Boom To Mast Connection

Discussion in 'All Things Boats & Boating' started by Boom Up Bob, Aug 6, 2024.

  1. Boom Up Bob
    Joined: Aug 2024
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    Location: Merritt Island, FL

    Boom Up Bob Junior Member

    Hello everyone, I’m new to the thread but have already read a lot of great info here! I’ve just bought a Halman 20 and have been fixing her up. I seem to be stumped as to how the boom connects to the mast? there is a place for the gooseneck to slide in but I don’t understand what there is to keep the boom in position and not sliding up/down? I’ll attach some pictures below and any help is incredibly appreciated. Thanks!
     

    Attached Files:

  2. Blueknarr
    Joined: Aug 2017
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    Location: Colorado

    Blueknarr Senior Member

    Welcome to the forum

    That gooseneck is intended to slide in the mast.
    Sail tension holds it up. A down haul pulls down performing simular functions as a Cunningham.

    There are screw stop slides available that will prevent the gooseneck from dropping all the way to the deck. But your string arrangement works fine as well. I would allow the gooseneck to drop 2-3 times as far as you seem to.
     
  3. Boom Up Bob
    Joined: Aug 2024
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    Location: Merritt Island, FL

    Boom Up Bob Junior Member

    Fantastic! I appreciate your response more than you know. That’s kind of what I was thinking but I wasn’t sure. I feel much more confident and will make sure to add a downhaul. There’s an anchor point on the bottom of the mast for a boom vang and so I plan on adding an anchor point to the boom so I can run one. Any suggestions as to how far down the boom I should add the boom vang attachment point? That being said, would a boom vang take away the need for a downhaul or should I run both? Thanks a lot
     
  4. Blueknarr
    Joined: Aug 2017
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    Location: Colorado

    Blueknarr Senior Member

    Personally I consider a mainsail without Cunningham/DH, vang, out haul, topping lift and traveler lacking basic shape adjusters.

    Cunningham/DH adjust luff tension. The downward movement tightens the luff. This flattens the sail by pulling fabric towards the mast. Lift is slightly reduced and drag greatly reduced.

    Vangs and their counter adjust the vertical angle between the boom and mast by pulling down or up on the boom. This tightens or loosens the leach and the amount of sail twist.

    Vangs usually attach 1/3-1/2 way from gooseneck to boom end. The angle between the boom and vang needs to be greater than 15*
     
  5. wet feet
    Joined: Nov 2004
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    wet feet Senior Member

    The piece of rope in the third picture looks like the means of holding the boom down and the luff tension will presumably hold it up.If the plan is to leave the boom in place when not sailing,it might be a good move to add a physical block to prevent the gooseneck sliding down the mast.There is no particularly pressing need for the gooseneck to slide if you don't have the inconvenience of a halyard lock and on a boat that might have to reef,there is little advantage in a halyard lock.The topping lift that Blueknarr mentions is a handy way of holding the aft end of the boom up,not really all that useful for adjusting sail shape if you have the other necessary controls.
     

  6. Boom Up Bob
    Joined: Aug 2024
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    Location: Merritt Island, FL

    Boom Up Bob Junior Member

    Great info! I appreciate your advice and knowledge. I do have a topping lift an an out hill, and I will make sure I have a downhull/cunningham rigged. I’ll add a vang and a physical block for the gooseneck as well. This was exactly what I was hoping to figure out. Thanks again, greatly appreciated
     
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