Ball Park Costing

  • 18 Oct 2021 16:31
    Reply # 11590984 on 11565669

    I'm going to jump in over my head here, but if Don can find a conventional standing lug rig of the proper size, wouldn't the cost for that be a starting point (on the low end)? Might it be possible to keep the mast and spars and make a junk sail for it? Not as simple as that, I know, but it might give a head start.

  • 18 Oct 2021 06:32
    Reply # 11578709 on 11565669
    Anonymous wrote:

    Can anyone give an approximate cost for fabricating a junk rig for the following boat:

    http://yachtdesign.com.br/ingles/projetos/pa28/dim28.php

    Single mast, guess the target sail area would be about 450 square feet following the 'sloop rig plus 10%' rule.  Boat would be built in the UK.


    It depends  :)  It sounds like you are building or will have the boat built as well. Are you planning on racing? Are you willing to have a mast between your saloon and forward "cabin"? I do not know that I would want to be out in following seas with that style of hull. Balance will likely be more difficult too. However, I don't think it would be worse than the rig it has with a junk rig. Building the rig your self would be much cheaper. Price out the right size tube at your local metal mart and price of the right number of square meters of fabric... should get you close. Having it done, the sky is the limit :)  most builders are not familiar with the JR and so, besides costing more, might not perform well. While the mast will be larger than stock, there is no standing rigging. The fabric does not have to be as strong either.

    If you wish to avoid a tube through your living space, you may wish to design a tabernacle with a wishbone shaped base.

    Last modified: 18 Oct 2021 06:36 | Anonymous member
  • 18 Oct 2021 00:23
    Reply # 11571253 on 11565669
    Don wrote:

    Can anyone give an approximate cost for fabricating a junk rig for the following boat:

    http://yachtdesign.com.br/ingles/projetos/pa28/dim28.php

    Single mast, guess the target sail area would be about 450 square feet following the 'sloop rig plus 10%' rule.  Boat would be built in the UK.

    Any other feedback - eg, suitability of the boat for junk rig - would be welcome.

    Thanks in advance!

    Don


    Hello Don, You will no doubt get other replies from some of our knowledgeable members but my contribution is that it is very hard to even put a ball park figure on a junk conversion. It all depends on which country you are in and availability of materials for a suitable mast and whether you do the rig build yourself which probably most JRA people do, or whether you have it all done professionally. The problem to is that even once you have your sail plan, if you go to a regular sail maker they do not really know much about building junk sails, so you may end up with an expensive not properly built junk sail.

    The best starting point is to design a junk rig based on the CE of the normal bermudan sail plan of the boat, and the CLR of the hull based on a hull drawing or profile drawing. There are some of our members who can help you with this, or you can do it yourself based on the information provided in Practical Junk Rig. Once you have a junk sail plan sorted out you can then begin costing the rig, but there is no such thing as an 'off the shelf' junk rig. But because you are in the UK if you look at the last page of the current JRA magazine you will find some advertisements for makers of junk rigs and sails in your part of the world, so they might be a good starting point.

    Regarding suitability of the boat, they say that almost any boat can be converted to junk rig, but the big thing is placement of mast and what effect that might have on interior accommodation arrangements. If it is a new build it is much easier to work around this as a suitable mast step can be done as part of the build, but if it was a conversion to an existing boat there may well be a lot of modification needed to the cabin top, and the construction of a suitable mast step, all of which are going to add variables to the costing.

    Good luck with the project.

    Last modified: 18 Oct 2021 00:41 | Anonymous member
  • 17 Oct 2021 19:57
    Message # 11565669

    Can anyone give an approximate cost for fabricating a junk rig for the following boat:

    http://yachtdesign.com.br/ingles/projetos/pa28/dim28.php

    Single mast, guess the target sail area would be about 450 square feet following the 'sloop rig plus 10%' rule.  Boat would be built in the UK.

    Any other feedback - eg, suitability of the boat for junk rig - would be welcome.

    Thanks in advance!

    Don


       " ...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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