Cambered panel sails on Wild Fox

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  • 10 Feb 2012 10:54
    Reply # 821608 on 770677
    Anonymous member (Administrator)

    I have finally  uploaded the write-up about peaking up the rig to "my" page:

    http://junkrigassociation.org/arne

    You find it under

    "Other Technical articles"

    .. or just try this link:

    http://www.junkrigassociation.org/Resources/Documents/
    Arne%20Kverneland's%20files/20111214%20Peaking%20up%20
    the%20junk%20sail,%20ver%2020111214b.pdf

    Arne

    Last modified: 12 Mar 2018 20:04 | Anonymous member (Administrator)
  • 18 Dec 2011 00:03
    Reply # 776230 on 775947
    Kurt Jon Ulmer wrote:Hi Arne,

    Your article on peaking up the yard makes good sense to me. That's after playing around with Hong Kong and running luff parrels on Aphrodite. Her battens seem tough enough to take the local strains, though. Eh, Paul.

    Don't think Aphrodite's battens are likely to be found wanting in that respect :-)

    And Arne's article is spot on as we found out when rigging Aphrodite. At first the sails did not co-operate to nicely but when we went back to basic principals and applied the rules that Arne has now so clearly spellt out. Everything fell into place.
    Last modified: 18 Dec 2011 00:04 | Anonymous member
  • 17 Dec 2011 16:01
    Reply # 776084 on 770677
    Arne,
    A very clear and well illustrated write up on the LHP (THP).
    I hope the Editor can use it as an article in the next JRA Magazine.
  • 17 Dec 2011 07:36
    Reply # 775947 on 770677
    Hi Arne,

    Your article on peaking up the yard makes good sense to me. That's after playing around with Hong Kong and running luff parrels on Aphrodite. Her battens seem tough enough to take the local strains, though. Eh, Paul.

    On mehitabel, I use the running throat-upper-luff parrel, including 2 battens in the purchase. Wrinkles are, of course, easy to get rid of with our flat-cut sails. Only the bottom panel bisbehaves.

    For innate hardiness, I still like flat strong fabric between battens, in preference to Hong Kong parrels or point-loads in general - I wrote about that before, in one of my 'Flat Sails' sermons. But your words give excellent direction to people who want camber in their panels.

    Cheers,
    Kurt

  • 16 Dec 2011 15:10
    Reply # 775293 on 770677
    Anonymous member (Administrator)

                                                                                     Stavanger, Friday

    I guess that the main difference between Johanna and Edmond Dantes is that in Johanna the sail is pulled more aft on the mast. This is to avoid getting lee helm. Johanna’s mast is forced about 20-30cm further forward than ideal, due to the long trunk cabin..

    Arne

  • 16 Dec 2011 11:42
    Reply # 775186 on 770677

    Hi,

    This is quite funny, I have an exactly copy of Arnes sail (and mast), and I removed the luff hauling parrel as there was no use for it. Before I changed the yard, it was vital to the shape of the sail. The Hong Kong parrels is important to keep the luff straight, and the only change I would do to them is moving them to the rear as they might do less harm to the sailprofile on the port tack.

  • 15 Dec 2011 18:30
    Reply # 774274 on 773976
    Jerry Stebbing wrote:Thanks Arne for a very thorough explaination.

    Would there be any merit in making a true throat hauling parrel, ie controlling only the yard without including battens 1, 2 or 3?

    Jerry.
    It might be worth trying if rigged in a way similar to the yard hauling parrel, that is from the throat, around the mast to a block at the throat, then down to the deck. However, I'd rather put that block on the top sheeted batten, to share the load around a bit. And to decrease the pull needed to peak up the yard, I'd still rather see the THP led through two blocks on two upper batten ends, making what is effectively a 4:1 purchase.
  • 15 Dec 2011 13:50
    Reply # 774053 on 773976
    Anonymous member (Administrator)
    Jerry Stebbing wrote:Thanks Arne for a very thorough explaination.

    Would there be any merit in making a true throat hauling parrel, ie controlling only the yard without including battens 1, 2 or 3?



    Jerry.



    Yes, it is defenitely worth trying. The reason why I now let the LHP control the yard plus batten 2 or 3, is that  -  er  -  I don't know, really...

    Arne

    Last modified: 15 Dec 2011 23:41 | Anonymous member (Administrator)
  • 15 Dec 2011 10:56
    Reply # 773995 on 770677
    Elegant.  Thank you.  jds
  • 15 Dec 2011 10:21
    Reply # 773976 on 770677
    Thanks Arne for a very thorough explaination.

    Would there be any merit in making a true throat hauling parrel, ie controlling only the yard without including battens 1, 2 or 3?



    Jerry.


    Last modified: 15 Dec 2011 10:35 | Anonymous member
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