SibLim update

  • 17 Aug 2018 09:07
    Reply # 6579204 on 6579163
    David wrote: Annie, for the avoidance of doubt, could you confirm that you're thinking of the sail shape as shown in your avatar, which is the same as the drawing that I currently hold as the latest version, dated 6 November 2016?
    That's the one.  I just love it!
  • 17 Aug 2018 09:05
    Reply # 6579202 on 6579143
    Zane wrote:

    Fiji, awesome. Slight thread drift - don't register her as 'NZ Ship' then, because the whole Cat 1 thing runs against the spirit or "ethos" of how you have voyaged offshore in all your years of sailing, and I can't see you changing your ways to meet a checklist of what they need. Plus it is $1K to register, and needs to be renewed after only 5 years, and they whack you with another thousand to renew.  

    The so-called Cat 1 alone would be enough to stop me registering as a Kiwi.  I don't really want to sail under another flag, but I don't see that I have much choice.  It's not a matter of finances - well, not only - it's a matter of principle.  And I do have some. Frankly, I don't think I have a right to wander off across the ocean and then expect someone to bail me out when it turns to custard.  I am certainly not going to be forced into a situation where I have to load down my boat with rescue equipment.

    If all else fails, I'll get my brother to register the boat in the UK.


  • 17 Aug 2018 07:59
    Reply # 6579163 on 6576505
    Annie wrote:

    Dear Arne, I have thought about it believe me.  But I've quite fallen in love with the sail shape on SibLim (which is rather different from what David had planned) and want to try something different.  And if I'm not happy with it, I can always build another sail!  There is no way I'd want to build another boat, but a new style of sail - I can see that being tempting.

    Annie, for the avoidance of doubt, could you confirm that you're thinking of the sail shape as shown in your avatar, which is the same as the drawing that I currently hold as the latest version, dated 6 November 2016?
  • 17 Aug 2018 07:44
    Reply # 6579143 on 6575684
    Anonymous wrote:

      I may yet take this boat up to Fiji, 


    Fiji, awesome. Slight thread drift - don't register her as 'NZ Ship' then, because the whole Cat 1 thing runs against the spirit or "ethos" of how you have voyaged offshore in all your years of sailing, and I can't see you changing your ways to meet a checklist of what they need. Plus it is $1K to register, and needs to be renewed after only 5 years, and they whack you with another thousand to renew.  

    Last modified: 17 Aug 2018 07:44 | Anonymous member
  • 16 Aug 2018 09:23
    Reply # 6576505 on 4315719

    Dear Arne, I have thought about it believe me.  But I've quite fallen in love with the sail shape on SibLim (which is rather different from what David had planned) and want to try something different.  And if I'm not happy with it, I can always build another sail!  There is no way I'd want to build another boat, but a new style of sail - I can see that being tempting.

  • 16 Aug 2018 08:59
    Reply # 6576499 on 4315719
    Anonymous member (Administrator)

    And here is a hinge-free alternative, Annie  -  a straight 1:1 scale copy of Ingeborg rigs. I just couldn’t let be. Its’ a bit bad form to jump in like this, but I happen to know that this rig works. With ample halyard drift, like here, one is free to shift this sail quite a bit fore or aft until the helm balance is right.

    I learned yesterday from David that...

    «Arne's postings on his rigs are often about how you need to do "thus" and "thus" to the YHP and THP and LHP and HKP to get them to set well.»

    That may have been true in the days of Johanna. Since her mast was a bit too short, and since the sail had to be forced aft of its natural position to avoid lee helm, quite big forces landed on those running parrels.

    This has changed a lot with Frøken Sørensen and now with Ingeborg. With ample halyard drift, which lets me move the slingpoint aft of the middle, and the YHP point even further aft and up (2/3 up), and now, after shifting the whole sail of Ingeborg forward to 13-15% balance, the forces in the parrels have become very light. Moreover, I don’t have to touch them underway, except when reefing and un-reefing. My THP is just the LHP which has been moved up to the top of the luff. The HK parrels are lightly loaded and only do small corrections as our sailing changes between upwind and downwind. These are set up at the first rigging of the sail, and then forgotten about.

    Anyway, don’t lose focus on building the boat. It is not time for worrying about rigs yet.

    Keep up the very good work, I’m impressed what you can do!

    Arne

      


    Last modified: 16 Aug 2018 09:07 | Anonymous member (Administrator)
  • 15 Aug 2018 22:07
    Reply # 6575684 on 4315719

    Interesting, David.  My problem, though, is making the hinges: the sail I'm happy to sew, which is why I've never been that interested in the concept.

    Arne, I know, moved away from hinges, but you have been using them on and off for years, since Llutro, so I assume you've managed to contrive a design that (a) doesn't fall apart and (b) doesn't chafe the sail.  I may yet take this boat up to Fiji, so am hoping I may possibly put some miles on the sail.  It takes a lot of effort to knock up even 1,000 miles, sailing between the Mercury Is and North Cape, when the anchorages and other sailors are so attractive!

    I also note that since Arne has been moving the halyard further aft on the yard, the loadings that I find so objectionable have been much reduced.  I think Bryan tried the same idea on Fantail's yard, but sadly, they've not been able to use the boat much, so I haven't heard how it's all working.

    Last modified: 15 Aug 2018 22:10 | Anonymous member
  • 15 Aug 2018 13:35
    Reply # 6574698 on 4315719

    Annie, thinking more about your rig, which is currently a kind of low AR Weaverbird planform, and the possibility of adding hinges with flat (ter) sail panels, here's something that would work. Two 10˚ hinges at 45% and 50% of chord, with the sail absolutely flat aft of 50% and with sewn-in camber forward of 50% (since I know that you're not afraid of making shelves, I'd suggest doing it this way, but tucks or broad seam would be equally valid).

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  • 12 Aug 2018 08:07
    Reply # 6510827 on 4315719

    "I am well aware of the fact that I am asking an inordinate amount of this 26 footer and can only thank David for giving me enough room to cater to pretty well all my whims!"

    You're welcome!

  • 12 Aug 2018 04:56
    Reply # 6507037 on 4315719

    I've posted again on my blog.  Here is a bit of bling, for those who like boats that aren't white, shiny plastic, inside and out!



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