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Thread: Correct block attachment

  1. #1
    Join Date
    Jun 2021
    Location
    Spokane, WA USA
    Posts
    2

    Default Correct block attachment

    IMG_1049.jpg

    Sorry for the inverted photo. I replaced my halyard blocks with larger ones and this is how the prior owner had the blocks attached. They are connected to the stay. Is this acceptable? The boat is an Exploration 18 with a folding Gunter rig.

    Thanks,

    Rondanee

  2. #2
    Join Date
    Oct 2009
    Location
    South Puget Sound/summer Eastern carib./winter
    Posts
    19,763

    Default Re: Correct block attachment

    If it works,,,if it does not cut into the spar and does not chafe the line.
    Were it an offshore boat I'd say na ah, but a wee gunter....
    The nico press on 1x19 is sketchy for starters anyway.

  3. #3
    Join Date
    Mar 2019
    Location
    Rushworth, Australia
    Posts
    781

    Default Re: Correct block attachment

    That block is exerting an unfair load on that thimble. Can’t you rig it so block is attached directly to mast tang. Perhaps a ring between shackles?

  4. #4
    Join Date
    May 2012
    Location
    UK. Cornwall, Suffolk.
    Posts
    7,944

    Default Re: Correct block attachment

    Put a chain link between all three.

    maillon-rapide-link-rated-stainless-steel.jpg

    But as Wizbang says, not much to worry about with a small boat.

  5. #5
    Join Date
    Jun 2010
    Location
    PNW, an island west of Seattle
    Posts
    2,859

    Default Re: Correct block attachment

    Add a proper mast tang specifically for the halyard or a tang extension to the existing one: Forestay on the existing clevis pin, halyard on the end of the new extension.

    What you have now will likely not fail because the loads are likely light. But it's goofy.

    Jeff

  6. #6
    Join Date
    Jun 2003
    Location
    Central Coast, Ca
    Posts
    31,357

    Default Re: Correct block attachment

    I would add another longer tang under the existing one to pick up the block. And I would not use a block with a swivel.

  7. #7
    Join Date
    Jun 2021
    Location
    Spokane, WA USA
    Posts
    2

    Default Re: Correct block attachment

    Thank you all for the comments and suggestions. It is a bit goofy as is. I'll plan on adding an additional, longer tang to pick up the block. Why is the swivel a bad idea? To whizbang 13's comments about the nico presses on the stay; what's the best option on this? Dyneema looks like a good option.

  8. #8
    Join Date
    Jun 2003
    Location
    Central Coast, Ca
    Posts
    31,357

    Default Re: Correct block attachment

    If you don't need a swivel (and a halyard shouldn't) it is an unnecessary complication. It is weaker, and heavier with more parts to wear out and fail. Not to mention having a halyard that is all twisted up.
    (I prefer having standing rigging ends professionally made using terminal eyes, forks, or threads, nico press is ok for a temporary repair)

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