Primaat 24 conversion

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  • 15 Jan 2025 08:01
    Reply # 13450425 on 7891576

    Not yet, it was just a short winter sailing and after the beautiful sunrise, the fog set up and I had to use the GPS for finding my anchorage.

    I sailed close hauled and on a beam reach. I need to tighten a bit the lines, and the next time I'll test more in depth, and downwind. I'll report for sure.

    Once again, thanks a lot !

  • 15 Jan 2025 07:45
    Reply # 13450424 on 7891576

    Another satisfied customer ;-)

    Good, I'm glad it's working well. Did you try it on a dead run: wind exactly astern? That's the most challenging course for a vane gear, many of them can handle going to windward as well and as accurately as Circé does in your video.

  • 14 Jan 2025 20:40
    Reply # 13450235 on 7891576

    I would like to thank David Tyler deeply for the plans for his wind vane.

    I have just finished building and installing my wind vane on Circé, and I am impressed by the quality of the engineering. Everything is very well designed, and I am very happy with the result. I was able to sail with my hands in my pockets, which was good because the weather was really wintery.

    Thanks a lot David !

    https://youtube.com/shorts/b-o1x16Y2k8

  • 14 Sep 2024 18:52
    Reply # 13406737 on 13406554
    Anonymous wrote:

    It's interesting, I think, how similar this sail plan is to Jester's. If that had been somewhat larger, with cambered panels, it would have performed much better, and Blondie might not have thought it necessary to try designing any more shapes, maybe?

    Have we come full circle? Perhaps Hasler's prototype was the definitive version all along. Jester's rig was the best looking, in my eyes, and it certainly seems to have worked well enough.
    1 file
    Last modified: 14 Sep 2024 19:00 | Anonymous member
  • 13 Sep 2024 21:48
    Reply # 13406554 on 7891576

    It's interesting, I think, how similar this sail plan is to Jester's. If that had been somewhat larger, with cambered panels, it would have performed much better, and Blondie might not have thought it necessary to try designing any more shapes, maybe?

  • 13 Sep 2024 14:15
    Reply # 13406304 on 7891576

    For 3 years I'm enjoying my little junk Circé, and I'm still very pleased of this sail plan.
    I must have been very lucky because for my first sailplan, it performed very well on every directions et sets up easily .
    I've uploaded the original sailplan, with all the stains of coffee and blood from the workshop of my sailmaker friend.

    Its main characteristics :
    - 24m² in 7 panels
    - mast balance 18%
    - the boom and the lower 4 battens at an angle of 12° from the horizontal
    - batten #5 at 19°, batten #6 at 28° and the yard at 38°
    - the yard is short compared to the battens, 258cm vs 395cm for the longest batten.
    - one halyard,
    - one running luff hauling parrel from the batten 6, round the mast to batten 5 and down to the deck
    - one yard hauling parrel
    - one standing mast parrel

    Raising the sail is no problem, I just need to pull the LHP until the creases disappear. The YHP is useful when heavily reefed, with the full sail I just remove the slack.

    I should have made the boom and the batten #1 longer, they have too much positive stagger and I would have had a little more sail area.
    The curved luff is pretty, but I'm not sure it is useful.

    Overall it's a very userfriendly sailplan. I think the low angle and short yard helps a lot in the setting.

    5 files
    Last modified: 13 Sep 2024 14:16 | Anonymous member
  • 24 Aug 2022 20:59
    Reply # 12894713 on 7891576

    Hi, after a good sailing season I start thinking of the winter modifications. I'd liked to install a windvane gear, one of David Tyler plans. But the transom of my boat is small, with the outboard in the middle.

    I need to know what space is needed for the pendullum, do someone know  the maximum swinging angle of the pendullum ? Can it be a little off-center ?

    Thomas

  • 10 Apr 2022 07:53
    Reply # 12701864 on 7891576

    Merci pour les conseils Éric, je les mettrais en pratique à ma prochaine sortie.

    Thomas

  • 09 Apr 2022 10:15
    Reply # 12700981 on 12699566
    Anonymous member (Administrator)
    Anonymous wrote:

    Hello, I've just published a new (quite long) video of my last sail, with more wind.

    Please comment the rigging, you have lot more experience than I. I found that going to weather I lost lot of speed and made too much leeway. Perhaps I was too sheeted in ?

    https://youtu.be/-teii0jyJHI


    Bonjour Thomas
    Bravo pour cette vidéo de balade dans le golf, cela me rappelle la semaine du Golfe avec Mingming. Je pense d’ailleurs organiser un junket pour la prochaine semaine du Golfe en mai 2023.

    Je ne suis pas le mieux placé pour commenter mais face à l’absence de réaction, je me permets.

    L’empannage, avec un gréement de jonque est un peu terrorisant lorsque l’on a une culture de gréement bermudien. Il ne faut surtout pas border l’écoute. On laisse la voile complètement débordée et l’on abat en grand jusque’à se retrouver au travers bon-plein sous la fausse panne. La voile passe rapidement mais, c’est là que c’est génial, en fin de course la voile se retrouve en drapeau avec l’écoute molle. Il suffit de reprendre sa route en abattant sur l’autre bord. Commence par essayer par petite brise pour prendre confiance.

    Pour le près, il me semble que tu pointes trop. Le guindant de la voile ne doit pas se dégonfler. Il faut considérer le guindant de la voile comme le bord d’attaque d’un génois bermudien; il n’est d’ailleurs pas inutile d’y mettre des faveurs 20cm derrière le bord d’attaque.

    Eric

    Courtoisie translation :
    Congratulation for this trip around the Golfe du Morbihan. It reminds me Mingming participation to the last « semaine du Golfe du Morbihan ». I will try to organise a junket during the next Semaine du Golf scheduled for May 2023.

    I am not the best man to comment but as there are no reaction, I try to give advises.

    The gibe with a junk rig looks quite terrorizing when you have a Bermudian rig culture. The sheet should NOT be pulled in at all. The sail must remain square and you pull the tiller until you are beam wind or a bit more with the sail to the wind. The sail swung around BUT, that’s the genius part of it, on the other side the sail is feathered and depowered, the sheet is slack ! The gide is done and the boat may be put on track again. Try first in light wind to take confidence.

    Shilling windwards, the sail seems to be set properly but you are pointing too much. The luff should remain full and should not flap or full up windward.  You may consider the luff of the sail as the luff of a bermudien headsail ; it would be helpful to add some windtails about 20cm back from the luff to visualize the air flow.

  • 08 Apr 2022 10:03
    Reply # 12699600 on 7891576
    Anonymous member (Administrator)

    Congratulations, Thomas!
    You have every reason to be proud of that job.

    You could well keep it like that all summer. If I dare suggest any changes that would be to the sheet. I found the Pilmer sheet that you use to be quite good on my Malena. Being 3-part, it had little friction in it and in addition some anti-twist.

    However, with a reef or two in the sail, the twist in Malena’s sail rose quite a bit, just as I spot in your sail. I wanted to reduce or do away with that twist for two reasons:

    • ·         With little twist, the whole sail will set at correct angle to the wind and produce more drive with less heel.
    • ·         With little or no twist. The sail would be more tolerant to early gybing. With lots of twist, the lower part of the sail, starts a gybe before the rest (‘Chinese gybe’).

    What I came up with is something I call ‘The Johanna-style sheet’. I have used this on my last four boats, and I think this sheet type makes my sails work better. The downside is that it will take up more sheet space, so it is unlikely that you can sheet the furled bundle to the centreline. I get away with it by tying the sheet-bundle to the side-deck. As long as I can sheet the sail in for close-hauled sailing with three or two panels set, I am happy.

    Going to weather.
    A small, light boat like yours, with a fin keel, surely is a challenge to make sail to windward in a chop (just as my Malena was). First of all, I learned to reef the sail to keep the boat heeling no more than around 20°. Then the sheet was eased a bit, and I fell off a bit from the standard pointing angle. Speed has priority over pointing angle on such a boat, to avoid making excessive leeway.

    Good luck!
    Arne

    PS:
    Here are some notes on some upgrades I recently made to the Johanna sheet.
    https://bit.ly/2Zc6eCe


    Last modified: 08 Apr 2022 17:06 | Anonymous member (Administrator)
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