S2 6.7 Junk Rig Conversion

  • 29 Sep 2021 22:24
    Reply # 11129625 on 11129549
    David wrote:
    Scott wrote:

    I posted this video showing the current state of the rig on my S2. I think this is likely the end of rig updates for this season. Unless something breaks I will spend the remainder of the summer sailing and not fussing with the rigging.


    I had a look at your video and it seemed that the leech of the sail was not looking very good. I wonder if your sheetlets are long enough, are they set up as per the recommendations in PJR? It may have been the angle the video was shot from but on the top span, which I think connected 3 battens the sheet pull seemed to be coming from the middle of the 3 battens, rather than pulling down equally on all 3.

    It is normal for some things to not work out initially and to even break, but the nice thing about the junk rig is that everything is low tech and does not cost much to change/replace. When we fitted the new sail to 'Footprints' there was a lot of modification during the first season, but from then on everything has remained static and 9 years later the rig has required virtually no maintenance, just a bit of line adjustment from time to time. If something breaks or chafes through it is a matter of finding the cause and then making an improvement next time round. And bungee cord which you mentioned in your later email just seems to last no time in the sun.

    The really good thing is that you have completed your junk conversion and have been able to get out on the water and enjoy the fruits of all your hard work so congratulations on a successful first season.

    I have the sheetlets setup as a copy of the 'New sheetlets, a Mk.2 version of the Johanna-sheeting' in Arne's Fixes, adjustments and improvements on Ingeborg letter. Or, at least, my attempt at copying them.

    I have been looking at the three upper sheeted battens all summer trying to decide if they are pulling at the correct angle. I think the leech of my sail sort of looks like the one on Ingeborg.

    I plan to replace the cord that connects the to upper three battens with a longer section of rope or cord to see if it works better. I am still trying to decide if I should also make the upper-most sheeted batten a little bit shorter.

    1 file
    Last modified: 30 Sep 2021 21:22 | Anonymous member
  • 29 Sep 2021 21:38
    Reply # 11129549 on 10972875
    Deleted user
    Scott wrote:

    I posted this video showing the current state of the rig on my S2. I think this is likely the end of rig updates for this season. Unless something breaks I will spend the remainder of the summer sailing and not fussing with the rigging.


    I had a look at your video and it seemed that the leech of the sail was not looking very good. I wonder if your sheetlets are long enough, are they set up as per the recommendations in PJR? It may have been the angle the video was shot from but on the top span, which I think connected 3 battens the sheet pull seemed to be coming from the middle of the 3 battens, rather than pulling down equally on all 3.

    It is normal for some things to not work out initially and to even break, but the nice thing about the junk rig is that everything is low tech and does not cost much to change/replace. When we fitted the new sail to 'Footprints' there was a lot of modification during the first season, but from then on everything has remained static and 9 years later the rig has required virtually no maintenance, just a bit of line adjustment from time to time. If something breaks or chafes through it is a matter of finding the cause and then making an improvement next time round. And bungee cord which you mentioned in your later email just seems to last no time in the sun.

    The really good thing is that you have completed your junk conversion and have been able to get out on the water and enjoy the fruits of all your hard work so congratulations on a successful first season.

    Last modified: 29 Sep 2021 21:41 | Deleted user
  • 29 Sep 2021 18:57
    Reply # 11129247 on 6872873
    I try to avoid being superstitious. But in the future I don't think I will write, "Unless something breaks", on the public forums.

    The bungee cord I had holding the tiller clearly was not made to be out in the sun all summer. It just sort of disintegrated while I was out on the big lake. Not a critical failure, but it was annoying.

    I also had one of the batten parrels come untied from the batten. Again it was not critical and I could still sail with the line hanging loose. I tied a short loop of rope to the batten, the way Arne did recently, to make a more reliable attachment point. I did not stitch it to the pocket like Arne did, but I put a patch of grip tape on the batten before using cord to lash the larger loop to the batten. I plan to do this for all the batten and HK parrels this winter.

    It was suggested to me that holding my phone against the boat might show the motion of the boat a little better. Below is a video where I held the phone against the cabin top and deck while sailing in something like 2.5 ft waves. This is near the upper end of what I consider comfortable sailing.

    https://youtu.be/pQSaeSy6m-I

    I think I am done sailing for the year. I am planning to haul the boat out this week.

    Happy Spring to those of you in the Southern Hemisphere!

  • 31 Aug 2021 23:16
    Reply # 10972875 on 6872873

    I posted this video showing the current state of the rig on my S2. I think this is likely the end of rig updates for this season. Unless something breaks I will spend the remainder of the summer sailing and not fussing with the rigging.

    There are three recent changes (that I can remember).

    1. I could never get the leech of the sail to sit flush with the battens using outhauls. This would cause many snags while hoisting the sail. I gave up and made holes through the sail at each batten and directly bolted the sail to the existing holes in the battens. After trying a couple of different strategies I ended up using a cordless drill the make the holes and my butane hot knife to fuse the material before bolting it all together.

    2. The way I had the Tack Line rigged caused the line to chafe and almost destroy itself. I put shackles on the large rubber bungee and used a larger polyester line to attach it to the boom. This seems to be more robust.

    3. The block for the Throat Hauling Parrel was tied on with small polyester cord. This was also about half way eaten up by chafe. I replaced this with a shackle. It seems very strong now. Hopefully it is, at least, 'good enough'.

  • 31 Aug 2021 23:05
    Reply # 10972867 on 10953381
    Arne wrote:

    [...]That red and white material is just tape. I put it under the hose clamps to avoid corrosion, and I didn’t bother with removing it when going Dyneema. Thanks to that little white ‘safety string', that lashing will never slip.[...]

    Hi Arne,

    Thank you for answering my question about the tape. Is there some reason why you used Dyneema? The low stretch and high strength properties do not seem to be critical in this application. I think Dyneema is also relatively slippery rope, meaning it does not hold knots as well as something like polyester.

    I would like to use your method to attach the my batten parrels. I am too cheap to buy Dyneema unless it is necessary.

  • 29 Aug 2021 01:40
    Reply # 10965202 on 10956656
    Anonymous wrote:

    There is not much wrong in using hose clamps, as I have used them for years. Just wrap some stout tape over them to cover the nuts and pointy bits. Later, if these turn out to rust, they can be replaced with some sort of rolling hitch.

    Good luck!
    Arne


    Will do Arne.
  • 27 Aug 2021 14:32
    Reply # 10960946 on 10956656
    Arne wrote:

    [...] Our summer doesn’t last forever, and the fine days we still enjoy here, must be spent on better things than writing. [...]

    The daylight is getting noticeably shorter now. I went out to fuss with the aft ends of the battens on Thread  last week, to get them lined up flush with the sail. I ended up doing most of the work with a head lamp in the dark. The days with sunset around 9:30 and twilight until after 10:00pm are gone already!

    Last modified: 27 Aug 2021 18:16 | Anonymous member
  • 25 Aug 2021 21:38
    Reply # 10956656 on 6872873
    Anonymous member (Administrator)

    Sorry, Hans-Erik,

    but I am a little pressed for times these days. Our summer doesn’t last forever, and the fine days we still enjoy here, must be spent on better things than writing. These days I am spending the mornings painting a wall on my house (before the wind picks up and the sun starts shining on the wall), and in the afternoons I like to sail, but this night I got a call from Svein Magnus in Samson, so tomorrow I will go up the  in Samson’s main mast to sort out a halyard  -  maybe followed by a test sail.

    There is not much wrong in using hose clamps, as I have used them for years. Just wrap some stout tape over them to cover the nuts and pointy bits. Later, if these turn out to rust, they can be replaced with some sort of rolling hitch.

    Good luck!
    Arne


    Last modified: 26 Aug 2021 22:43 | Anonymous member (Administrator)
  • 25 Aug 2021 09:04
    Reply # 10955067 on 10953023
    Anonymous wrote:
    I plan to make a more comprehensive write-up about it, and then incorporate the lashing of the halyard to the yard.

    Cheers,
    Arne

    So that was the plan you came up with.
    I had read about your intention to try an alternative way to secure the batten parrels and HK parrels and was literally about to email you to ask if you had.
    Since the 'rigging' of Jasmine's sail is soon to become real I for one eagerly await your write up.
    Fair Winds,
    Hans-Erik
    Last modified: 25 Aug 2021 09:07 | Anonymous member
  • 24 Aug 2021 17:33
    Reply # 10953381 on 6872873
    Anonymous member (Administrator)

    Scott,
    my other reason for not just replacing the rusty hose clamps with new ones, is the same as yours  -  to avoid ‘screw heads and pointy parts’. That said; there has been no damages caused by these.

    That red and white material is just tape. I put it under the hose clamps to avoid corrosion, and I didn’t bother with removing it when going Dyneema. Thanks to that little white ‘safety string, that lashing will never slip.

    Arne


    Last modified: 24 Aug 2021 22:10 | Anonymous member (Administrator)
       " ...there is nothing - absolutely nothing - half so much worth doing as simply messing about in junk-rigged boats" 
                                                               - the Chinese Water Rat

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