Forgot password

Bendy battens, Crinkly Leach

<< First  < Prev   1   2   Next >  Last >> 
  • 25 Jun 2018 14:33
    Quote
    Reply # 6340460 on 6338213
    Anonymous member

    David,

    Thank you! If it's ok with you, I'll pop up the measurements tonight. My only concern is whether the batten pockets are large enough to take the required diameter, or whether an alternative (glassed wooden battens on each side of sail, bolted together through eyelets) is going to be in my future.

    I get the feeling this is going to be an adventure - in a good way.

    Last modified: 25 Jun 2018 14:33 | Anonymous member
  • 25 Jun 2018 02:51
    Quote
    Reply # 6339787 on 6338213
    Anonymous member

    Hi Stephen,

    a rough guide for batten diameter is 1% of the length. say 40 mm if your battens are 4 meters long. This gives quite a stiff batten and is suitable for a cambered sail. If you have a flat cut sail then a slightly more bendy batten may suit better, say 30 mm with a slightly thicker wall.

        The batten parrels should be attached to the battens through apertures in the batten pockets, a screw into the batten can act as a stop to prevent it slipping along the batten.

        As for the crinkly leech, you may need to lengthen the span a little in order to get a better lead from the attachment to the sail at the lower batten connection.

    I hope that this is of some help, David.

    Last modified: 25 Jun 2018 02:52 | Anonymous member
  • 24 Jun 2018 21:25
    Quote
    Reply # 6339221 on 6338213
    Anonymous member

    Hi Bill!

    Ermm... I haven't measured, but I'd estimate about 4m battens. I can nip out after work tomorrow and measure (also estimate sail area while I'm at it).

    Oh, and yes, there are batten pockets and the batten parrels are attached to the sail cloth (another cause for concern).

    Last modified: 24 Jun 2018 21:28 | Anonymous member
  • 24 Jun 2018 19:32
    Quote
    Reply # 6338522 on 6338213
    Deleted user

    those are some seriously bendy battens :)

    someone more knowledgeable than I should be along soon to help you but it'd be helpful to know the batten length and sail area to find the right size of battens.

    Are the batten parrels attached to the sailcloth instead of the battens?


    Bill
  • 24 Jun 2018 18:55
    Quote
    Message # 6338213
    Anonymous member

    Hi all, first post here.

    I'm the owner of Caurryhaundit, a Kingfisher 20+JR. This is my first time with a Junk Rig and I've been furiously experimenting with different setups to try and learn as much as I can about this wonderful sailplan. I have, however, hit two snags and wondered if anyone has any suggestions.

    The first is the bendy battens.As you can see from the attached photo, the current battens are made of plaited shoelaces and jelly, or at least thatst what they feel like (in practice they are standard fibreglass), and are horribly bendy to the point of having little to no effect whatsoever on sail shape. I plan to replace them with Aluminium tube, but was wondering whether 16mm X 1.5mm T6 would be suitable.

    The second issue is the crinkly leach. No matter what I try, I end up with the leach  end of the battens being pulled together once the wind goes above about ten knots. This is the same even when I tried running separate sheets. Is it likely rhat this is related to the wet string battens?

    Thanks in advance for your insight.




    1 file
    Last modified: 24 Jun 2018 18:55 | Anonymous member
<< First  < Prev   1   2   Next >  Last >> 
       " ...there is nothing - absolutely nothing - half so much worth doing as simply messing about in junk-rigged boats" 
                                                               - the Chinese Water Rat

                                                              Site contents © the Junk Rig Association and/or individual authors

Powered by Wild Apricot Membership Software