Junk rig conversion of foldable rowing boat

  • 27 Aug 2024 10:17
    Reply # 13398189 on 13291754
    Deleted user

    There's also Fliptail and Origami. Not inflatable but definitely foldable. I'm considering building a Stasha, which is not foldable but nestable (on deck), and making a small lug/junk sail for it. All three are self-build designs by the brilliant Wooden Widget.

    I'm even thinking the sail rig could double as a mizzen on the transom of the mother boat when anchored, to prevent it from sailing around. Maybe it could even work as a large self-steering "windvane" (inspired by David Omick)? I like stacking functions, as they say in permaculture.

    Last modified: 27 Aug 2024 11:06 | Deleted user
  • 27 Aug 2024 08:53
    Reply # 13398180 on 13398038

    We don't see these transportable boats sailing in New Zealand.

    You won't see one here either, it's a relic now, almost everyone sails on bigger and bigger GRP boats. Folding sailboats were probably a niche product everywhere. But if you look around, you'll definitely find a folding sailboat, oh I've already found one - e.g. Tiwal

    Thanks for the wishes, I wish you good luck and good health too!


  • 26 Aug 2024 22:42
    Reply # 13398038 on 13291754
    Anonymous member (Administrator)

    As for my boat - you have to remember that it is not a pontoon. It is a skeleton construction. 

    Yes. I just thought that a "pontoon boat" (I think that is the same as what we call an inflatable) has something in common with the skeleton construction of your boat - and that is, they both present a challenge to find a suitable structure to support leeboards and free standing mast. 

    The videos are interesting. We don't see these transportable boats sailing in New Zealand. We are lucky, access to lakes and the coast is relatively easier here. I find it interesting that people adapt ideas to suit their circumstances and their needs.

    Good luck in your quest for a little sailboat you can transport and rig easily, and enjoy the lake.

    Last modified: 26 Aug 2024 23:37 | Anonymous member (Administrator)
  • 26 Aug 2024 22:13
    Reply # 13398028 on 13291754

    Hi Graeme, thanks for the info!

    Luckily I already have a well-functioning junk sail for my folding boat.

    After the sailing season ends (i.e. - not before October) I will try to focus on solving the last two conditions you quoted - durability and short preparation time.

    I have never been a DIY enthusiast, but now as a retiree I have found that DIY is a very inspiring activity. I have learned a lot of interesting techniques and I am trying to learn some more.

    As for my boat - you have to remember that it is not a pontoon. It is a skeleton construction. I suggest watching the film (from five years ago, i.e. before the invasion), in which testers (from Russia or Ukraine, I am not sure) - test the original version (i.e. rowing). You can choose automatic translation of the subtitles into any language.

    Pay attention to minute 9:52, when the young woman lifts this boat up. Of course, my sailing version is heavier, but the hull is much stiffer than the pontoon and very light. Unfortunately, it also has its weaknesses - it is quite delicate and preparation for sailing takes a long time.

    Interesting facts - Another foldable sailboat (Mewa 2, Mewa 3) was produced in Poland (before Perestroika) and was popular in the former USSR. But that's history.


    Last modified: 26 Aug 2024 22:15 | Anonymous member
  • 26 Aug 2024 00:29
    Reply # 13397669 on 13291754
    Anonymous member (Administrator)

    Jan wrote: Converting pontoons to sailboats is not always a good idea, I've read a lot about it. The hull of the folding boat must be stiff and have a convex bottom. It should also be durable and preparation for sailing should be quick.

    I think you are probably right about that.

    Here's another inflatable


    JRA Newsletter 21 Summer 1990

  • 25 Aug 2024 19:16
    Reply # 13397597 on 13291754

    Hi Graeme!

    It's really nice to see you back on this thread. I see I have an ally in you when it comes to foldable sailing dinghies. It's really great to be able to talk to someone about an interesting topic, even if he is on the other side of the globe.

    The topic is certainly not new, I completely agree with you. I suspect that even Alain Bombard had a sail on his pontoon. I have collected a large collection of interesting links regarding foldable sailboats, but I have not yet come across a foldable junk.

    As you can see - the problem exists, many people are trying to solve it and although there have been some interesting designs - there are still enthusiasts who are trying to create something even better (Tiwal, Seahopper, Porta-bote etc.)

    None of these solutions satisfy me. It is possible that the foldable junk whose leaflet you sent me would be interesting, although there are not many details visible. I could not find the company's www address. By the way: I also think that this pontoon, converted to SJR would probably be better balanced.

    Converting pontoons to sailboats is not always a good idea, I've read a lot about it. The hull of the folding boat must be stiff and have a convex bottom. It should also be durable and preparation for sailing should be quick.

    I'm glad that you are still interested in the subject ! Best regards - Jan.

    Last modified: 25 Aug 2024 20:52 | Anonymous member
  • 25 Aug 2024 12:05
    Reply # 13397541 on 13291754
    Anonymous member (Administrator)

    There's nothing new under the sun, Jan.


    Advertisement in JRA Newsletter # 10 December 1984

    Last modified: 25 Aug 2024 12:05 | Anonymous member (Administrator)
  • 24 Jul 2024 11:37
    Reply # 13385658 on 13291754

    My boat "Tycia" has become a local attraction on the local lake. Thanks to her, I met a lot of nice people from the local club.

    Edit:

    Of course - everyone is informed about the existence of the JRA and about the leading figures in the community.

    Last modified: 24 Jul 2024 19:12 | Anonymous member
  • 22 Jul 2024 23:15
    Reply # 13385141 on 13291754
    Anonymous member (Administrator)

    Well, you did it!

    Good on you!

    I like the rigid parrels (the "pistol" and parrel beads).

    Last modified: 22 Jul 2024 23:41 | Anonymous member (Administrator)
  • 22 Jul 2024 22:39
    Reply # 13385129 on 13291754

    A few more photos. There are small wrinkles on the panels because the halyard is too loose.

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