Quasi-Junk Liberty 22

  • 11 Mar 2025 21:16
    Reply # 13473571 on 13469429

    Is there a specific temper of aluminium to use for the battens? I remember when I worked for a mast making company we used 6061 T6 iirc.


    I was looking at alu tubes online and saw 6063 T6 - anyone with any experience of this?


    What about alternative materials - timber? bamboo? Fishing rod blanks? I heard some people use plastic pipe?


    Just rolling ideas off the top of my head!


    Last modified: 11 Mar 2025 21:17 | Anonymous member
  • 10 Mar 2025 10:27
    Reply # 13472739 on 13469429

    Thanks Arne for the quick reply and guidance!

    I've also had the (rather obvious now) idea to look in the Technical Forum (yes, dunno why i didn't look before!) and found the

    Converting Corribee/Coromandel to junk rig -- technical discussion

    thread which - being as the Corribee is of similar length and displacement to my Liberty 22 - will also give good guidance.

    I note the comments about mast whipping. The Liberty masts were designed to do this to spill wind from the top of the sail in gusts. I'm assuming this may be evident in a junk conversion. As I'm currently on the Norfolk Broads where wave action is negligible, I'll stick to the Liberty mast at an experiment. If I decide to go offshore I think I might either build a mast or try to obtain something like Jes did.

    Last modified: 10 Mar 2025 10:28 | Anonymous member
  • 10 Mar 2025 10:17
    Reply # 13472737 on 13469429
    Anonymous member (Administrator)

    Roger,

    that sail is taken from my stack of Johanna 60 master sails, in this case with AR = 2.13.

    I don’t generally make detail plans for all four sheets unless I am to make the sail myself.

    Instead, I suggest you print out Chapter 4 and 5 of TCPJR and then Sheet 1 and 2 of the Johanna 60 master sail (two of each).
    All of these are found on ’my’ page: The Junk Rig Association - Arne Kverneland

    Sheet 1 will be the basis for Sheet 1 and 4, while Sheet 2 will be the basis for Sheet 2 and 3. Read through Chapter 4 (Fig. 4.2) and you will see what I mean.

    Since the battens will have the length of B = 3.00m, you will have to scale down every dimension on the master plan with a factor of FL = 3000/5077 = 0.5909.
    The needed Round to get the right camber is picked from Fig 4.5. In this case you should end up with R = 19.8 x 0.5909cm = 11.7cm.

    I guess you may well use the mast with its original mast rake. To avoid bending the mast top too much, I would move the halyard down the mast to just get enough halyard drift.
    I guess Ø22 x 2mm should be plenty strong enough for the battens, or Ø22 x 1.5mm, if you can get it.

    Good luck!

    Arne


  • 09 Mar 2025 23:04
    Reply # 13472657 on 13469429

    Hey Arne - that was it!


    I have a spare main mast and am lookiing at rigging it as a junk. I have some mobility issues and being able to set/reef/hand the sail from the cockpit is a real draw.


    Do you have any more details? I can see some dimenstions on the drawing - do you have any suggestions for materials and scantlings for battens, yard etc.?


    Did any idea come forward about reducing the rake of the mast? I'd like to do that without dismantling the current arrangement so I could convert back to Bermudan if desired.

    It was Bill Wardroper who you did the oricinal drawing for afaik.


    (Thanks to Graham and Kevin for the info).

    Last modified: 09 Mar 2025 23:15 | Anonymous member
  • 06 Mar 2025 22:37
    Reply # 13471599 on 13469429
    Anonymous member (Administrator)

    I had forgotten about that one, but it turns out that I actually made 2-3 sketches in November '23. I don't remember who asked.


    Check Arne's sketches, section 7, photos 29, 30 and 31 for more details.


  • 06 Mar 2025 13:34
    Reply # 13471279 on 13471230
    Anonymous wrote:

    Hi Roger,

    Won't be exactly what you want, but our knowledgebase has the following links on Hunter Liberties.

    917
    Trans Atlantic in a 23' HUNTER LIBERTY.
    link Newsletter Issue 38 July 2001
    783
    Cruising in a junk rigged LIBERTY 23 trailer sailer.
    link Newsletter Issue 24 Winter 1991
    824 Hans Schaeuble A new GOLDEN HIND LIBERTY 22 with Carbon spars
    link Newsletter Issue 28 Winter 1993
    876
    Hans Schaeuble's cruise in the Baltic 1996 and the Mediterranean 1997 in his LIBERTY 23.
    link Newsletter Issue 34 April 1999


    Hans Shaeuble also featured in my Hall of Fame series, he was number 20.  I have not seen Arne's drawing of a hybrid rig for a Liberty 22 but it is quite feasible.  He has drawn a similar rig for my modified H 28, Arion II, which I hope to fit one day when 'my ship comes in'.
  • 06 Mar 2025 10:41
    Reply # 13471230 on 13469429
    Anonymous member (Administrator)

    Hi Roger,

    Won't be exactly what you want, but our knowledgebase has the following links on Hunter Liberties.

    917 Trans Atlantic in a 23' HUNTER LIBERTY.
    link Newsletter Issue 38 July 2001
    783 Cruising in a junk rigged LIBERTY 23 trailer sailer.
    link Newsletter Issue 24 Winter 1991
    824 Hans Schaeuble A new GOLDEN HIND LIBERTY 22 with Carbon spars
    link Newsletter Issue 28 Winter 1993
    876 Hans Schaeuble's cruise in the Baltic 1996 and the Mediterranean 1997 in his LIBERTY 23.
    link Newsletter Issue 34 April 1999


  • 01 Mar 2025 19:07
    Message # 13469429

    Hi all.


    A little while ago on here, or the FB Liberty group, or possibly both, a little drawing appeared showing a Liberty 22 with a junk-rigged main and keeping its bermudan rigged mizzen. I believe Arne did the drawing.

    Does anyine remember anything about it? I have a spare main mast and am thinking about a spring project :-)

       " ...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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