sail chafe when sail is stowed

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  • 18 Sep 2017 13:13
    Reply # 5265977 on 5264890
    Deleted user

    Thanks David, Annie and Kurt for more advice.  Originally I would keep the halyard slack and let the full weight of the sail bundle lay in the forward lift and I kept the sheets tight....I didn't have gallows to support the other end, just relied on the lift.  But then I thought if I tightened the halyard a little the lift wouldn't be crushing the fabric as much and the sail cover with the extra flap that went between sail and mast would keep the chafe to a minimum.  Well now it appears keeping it a little loose was the culprit.  OK, I now see what I need to do....webbing for the lifts and move folds as best as I can out of the way when furling....install gallows.  I actually mocked up gallows for the main yesterday....I think that's gonna be a nice addition.  Again, many thanks.  We'll talk about my continuing halyard problem later......

  • 18 Sep 2017 10:15
    Reply # 5265771 on 5264890

    Interesting how junk rigs vary in their habits and ills. This may not help yours, but...

    On mehitabel, I use the 'other' kind of mast lift, that doesn't loop the mast. First thing when the anchor's secure, I pull all the sail fabric out of any pinching between battens and mast and tuck the flaps in under the yard. Then I make sure the hauling parrels are pulled out clear of snags so the old sails are ready to raise. I also 'triangulate' the bundle if it's choppy. Chafe while furled is minimal.

    Cheers, Kurt

  • 18 Sep 2017 09:29
    Reply # 5265717 on 5264890

    Most of the chafe usually occurs at sea and I wonder if your taking the load on the halliard may be exacerbating the problem.  Asmat's PVC tube works well; on Fantail, I used the outer braid of some 12mm rope and made a loop of that for the mast lift to attach to.  It was wonderfully soft and it was very easy to tighten the mast lift to perfection. 

    The consolation is that the wee holes caused by this sort of chafe don't enlarge significantly.  Badger had acrylic sails - a material that chafes while you look at it, but we got 80,000 miles out of her first suit and only did repairs once in a blue moon to make them look a bit 'tidier'.

    Last modified: 18 Sep 2017 09:30 | Anonymous member
  • 18 Sep 2017 08:10
    Reply # 5265626 on 5264890
    Deleted user

    Is your sail bundle able to move when the sail is stowed, either back and forth, up and down, or from side to side? Because it is movement of the sail against the mast which is what will cause chafe. After 5 years with the 'new sail' on Footprints there is a very negligible amount of chafe on the sail where it comes in contact with the mast. This is after thousands of miles of coastal and some offshore sailing. In fact I know exactly when the various bits of chafe have occurred, and it has all been whilst underway. When the sail is stowed the boom and sail bundle is lashed down to a substantial boom gallows so there is no movement of the sail against the mast. This is probably the secret to preventing chafe when the sail is down, ensure that there is no movement at all of the sail against the mast.

    So after all this time I have worn only one small hole through the actual sail itself which I have repaired with some glued on sail cloth. There is some wear of the webbing which sits over the foam padding on the battens and yard, and the stitching on the webbing has worn through in several areas but not enough the make it necessary for me to carry out repairs. All of this damage has occurred while underway in rolling sea conditions when I knew I should have dropped the sail but did not.

    Last modified: 18 Sep 2017 08:11 | Deleted user
  • 17 Sep 2017 22:20
    Reply # 5265222 on 5264890
    Deleted user

    That's another good idea.  Anything that I can do to start these new sails off in the right direction is a good thing.  Thanks Arne and the group.

  • 17 Sep 2017 22:11
    Reply # 5265215 on 5264890
    Anonymous member (Administrator)

    Neil,

    No, I have no special padding or patches on the sail at the mast. My armchair tip is that padded battens will reduce the problem.

    Another armchair idea popped up, right now: What about sewing on a 60cm tall pvc sock onto the mast where the sail bundle rests? Under the sock there could be a 10mm thick layer of padding material. I have sewn pvc anti-chafe socks on two yards and booms, and they can be made to fit very tightly.

    Arne

    Last modified: 17 Sep 2017 22:11 | Anonymous member (Administrator)
  • 17 Sep 2017 21:01
    Reply # 5265108 on 5264890
    Deleted user

    Hi Arne.....the new sails have batten pockets whereas the old I laced on with seine twine....what a job!  I had the sailmaker leave a window of about 16"+ for locating the ends of the parrels, so padding in that area shouldn't be difficult.  Thinking about it now, the hard spot that may have caused the chafe was the seine twine.  Do you do anything to pad between the furled sail and mast?  Thanks

    seine twine

    Last modified: 17 Sep 2017 21:12 | Deleted user
  • 17 Sep 2017 20:27
    Reply # 5265100 on 5264890
    Anonymous member (Administrator)

    Until now, I have not bothered with padding the battens at the mast. I have only used thick pvc cloth for batten pockets. I think it would be a good idea to make the batten pockets at the mast roomier to let one add some soft padding on the battens. This will increase the contact area between the battens and any cloth pinched between them and the mast. Maybe that will reduce the likelihood of chafing holes in the sail.

    My motif for the padding was rather to avoid kling-klong noise...

    Arne

    Last modified: 17 Sep 2017 20:28 | Anonymous member (Administrator)
  • 17 Sep 2017 19:06
    Reply # 5264994 on 5264890
    Deleted user

    Richard, thanks for the  reply.  This is the forward lift, no gallows there, just a single fixed line with an extra long loop in the end.  See Arne's photo....  because I've taken the load off the bundle sail, it may ride up and down a bit causing the chafe.  Maybe when I go with webbing I can let the full weight of the furled sail lay in the lifts....

  • 17 Sep 2017 19:01
    Reply # 5264978 on 5264890

    I've also used webbing since I rigged Tammy Norie and have not seen this problem. Are your battens completely secure when the bundle is on the gallows? Mine don't budge at all. I wonder where the movement is coming from. Is the sailcloth flogging when the bundle is stowed? You might just need some elastics around the bundle when you put the cover on.

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