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Hunter Duette converted to JR: a thank you

  • 17 Sep 2025 10:12
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    Reply # 13542960 on 13542187
    Anonymous member

    Arne,

    Thank you for your thoughts on painting the tubes.  I can live with some staining, but I agree it is good to minimise friction wherever possible.  At present the sail is fairly easy to hoist and drop, as long as I luff up and take the pressure off.  That said, I'm glad I have used a 4-part purchase on the halyard; a 3-part system would be hard work (sail area is 22 sq.m).

    Cheers,

    Pete
  • 16 Sep 2025 21:37
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    Reply # 13542821 on 13542187
    Anonymous member (Administrator)

    Peter, you are so right about that we have to choose from what the suppliers have. Those tubes sound plenty strong to me.

    About corrosion: The lower mast section of Ingeborg’s mast is also from the 6082-T6 alloy. Built in 2016, it looks good. There may still be two reasons for painting it with 2-pot paint:

    • ·        The un-treated alloy will stain the sail a little (black) at the mast position.
    • ·        A painted mast may be more slippery than an un-treated one. In this context there is no such thing as too little friction.

    Cheers,
    Arne
  • 16 Sep 2025 15:29
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    Reply # 13542683 on 13542187
    Anonymous member

    Hi Pete, thank you very much for the prompt reply and for the photo. Like Mr. Kenyon  said, i am sure a lot more people who are thinking about junk rig might be interested in what you have achieved. Best regards, Oz.
  • 16 Sep 2025 09:46
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    Reply # 13542590 on 13542187
    Anonymous member (Administrator)

    Looks like beautiful conversion. The details are worth putting on permanent record, and I think it would be very good if you could write it up for the magazine. It could feature in the November issue if you would be willing to do this.
  • 16 Sep 2025 09:45
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    Reply # 13542589 on 13542187
    Anonymous member

    Hi Asim,

    The lower part of the mast is a 5m round aluminium tube of 6082-T6 152.4mm diameter (6 inches) with a wall thickness of 3.2mm.  The upper part is a 4m tube of 6082-T6 114mm diameter (4.5 inches) also with a wall thickness of 3.2mm.  The upper part was buried 60cm to 70cm (I can’t remember what I went with exactly) into the lower part, held centrally in place using two fibreglass collars, which I fabricated separately and then glued on.  The step where the upper tube emerged was then faired with a fibreglass taper (see photo below).  

    I’m not a shipwright or structural engineer, so I settled on the tube specification after reading what other people have used, and I also ran various options through the maths that Arne Kverneland has helpfully documented in his technical articles on mast building.  Ultimately, though, I was constrained by what was readily available from stockists.  I bought my tubes from Metal Supermarkets, in Leeds, where I live, but other stockists will hold these or similar.

    The aluminium tubes are not anodised.  I’m keeping an eye on them for corrosion and wear, and may paint them.  Others with more experience may have a view on this.

    Thanks,

    Pete

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  • 16 Sep 2025 03:25
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    Reply # 13542568 on 13542187
    Anonymous member

    Hi Peter,

    Looks like you did a great job.

    Please consider sharing whatever pictures and explanation you can of the work done in either the technical forum or via an album or albums in your member's profile.

    I, for one, would love to see and read detail on the construction of your tabernacle.

    I have a trailerable 25ft Rebel Seaskip that I'm considering junking at some point and a tabernacle set up is crucial to maintaining the trailerable advantage of Moonbeam.

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    Last modified: 16 Sep 2025 03:35 | Anonymous member
  • 15 Sep 2025 15:31
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    Reply # 13542263 on 13542187
    Anonymous member

    HI Pete, Looks like you have done a great job on your conversion. I am hoping to convert my home built 22 foot boat to junk rig next spring. I live near Torquay in Devon and keep my boat in the inner harbour there. If possible could you please tell me the sizes of the aluminium tubes for your mast, and where you sourced them from. Best regards, Oz.
  • 15 Sep 2025 12:50
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    Message # 13542187
    Anonymous member

    Hello everyone,

    Over the past 12 months or so I have been converting my Hunter Duette 23, Juliette, to junk rig.  The conversion has included building a two-part aluminium alloy mast; building a tabernacle from Douglas Fir; and making a cambered sail from Marlen Odyssey, using the barrel method.

    I have just completed two weeks of sea trials, sailing from the River Crouch, Essex, UK, northwards up the coast to Hartlepool, County Durham, where I shall overwinter.  I have a list of improvements and modifications to make, but overall I’m very happy with how the conversion is turning out.

    I’ve been a member of the JRA for seven years, quietly absorbing knowledge from the forums, the technical articles on the website, and from the magazines.  All of these resources have been invaluable, as has the quite remarkable Practical Junk Rig by Hasler and McLeod.

    I would just like to take this opportunity to say a big thank you to everyone who gives of their time to collate and share their knowledge, skill and understanding through the JRA website and magazine, as well as through their own books, blogs and YouTube channels.  I would especially like to say thank you to Shirley Carter, Annie Hill, Tony Brown, Graham Cox, Arne Kverneland, Roger Taylor and David Tyler.


    Thanks again,

    Pete Shepherd

    s/v Juliette

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