Pondering Seablossom's rig

  • 20 Oct 2011 09:43
    Reply # 727559 on 727234
    Deleted user
    Jeff McFadden wrote:


    Members, a question: would you prefer to have me email Paul direct, taking this conversation off the list, or would you prefer that we do this planning out here where all who are interested can follow it?

    Keep it on list for me, please, it is always interesting to see the design process in action, and may in time be pertinent to my own progress.

    Regards,

    Roy.

  • 20 Oct 2011 06:35
    Reply # 727528 on 726309
    Jeff, is it possible to put the mast just forward or just aft of the end of the coachroof? Can you give me a measurement from the end of the bow to where to think/can place the mast? I need the measurement as a check against the drawing that I'm working from.
  • 20 Oct 2011 02:34
    Reply # 727349 on 727010
    Deleted user
    Annie Hill wroteJeff, as you seem to be a man of energy and resource and still have some enthusiasm left for the project, I would very strongly recommend that you get it right now, before you start on the interior joinery etc.

    Truth to tell, I am a chronically lazy habitual procrastinator, but I'm just desperate to go sailing in my own real, junk cruiser.

    I'll have to do a touch of joinery before I redo the rig, because the PO put a strange sort of a rectangular chute to function as a chain locker, and it slants diagonally down through the space where the mast will have to stand on its trip from the deck to the keel, where the rode terminates.  Other than that I'll be going with your suggestion.

     Especially, if moving the mast would actually improve the way the interior works.  Junk rig is very forgiving, but if you are going to re-design, I would agree with Paul that you might as well do it as well as you can.  There are lots of people on site who will help, and reading PJR helps you understand the why as well as the what.

    Someone Close To Me reckoned he could knock out mast, partners, etc in about 3 weeks.  Of course, he's never done it, but it's true that making the partners, reinforcing, cutting a new hole and filling in the old are not individually large jobs. 

    I'm pretty comfortable with that part.

    Getting the fittings made up should not be a big issue in a farming community, where, I would guess, there are plenty of chaps happy with steel and welder.

    Shouldn't be much to make, or at least not out of metal.  I've got the existing steel step I can move, the existing steel masthead fitting I can continue to use...

     And you already have the rig.  Go for it - if nothing else, it will give you something to do when you've had enough of your engine!
    I've already had enough of the engine!  Gaskets came today...
  • 20 Oct 2011 02:18
    Reply # 727328 on 727289
    Deleted user
    Paul Thompson wrote:
    Jeff McFadden wrote:

    Paul, yes, I do have a (well worn) copy of PJR. I'll go out tomorrow and get the dimensions you need. I will have to do a touch of guesstimating because the bury will decrease about a foot (oh sh*t I'll need to become more conversant in metric) and the LAP will show a corresponding increase.

    It is my feeling that all battens, the yard and boom will all be too short. I see the leech winding up pretty close to where it is now and the luff moving forward a considerable distance.

    Jeff, don't worry about becoming metric, I'm equally at home with good King Henry's thumb even though it's not a rational way to measure things......

    Ok, then we do not have to worry about the old rig. I take it that you'd like an "Arne" style sail? The important mast measurement at this stage is LAP so that I know how much mast we have to work with.

    As to PJR, best you are familiar with it as the terms used for the rig are defined there. Also it's a good guide for your re-rigging. PJR is still very pertinent for cambered sails as apart from the Hong Kong parrels, everything is spot on.

    Yes, I am definitely planning on an Arne style sail.  I got an email from him a couple of days ago which included a photo of Broremann's sail, with shadow lines from the halyard and mast lift laying on the camber, and the camber shows up as quite lovely.
  • 20 Oct 2011 01:53
    Reply # 727289 on 727234
    Jeff McFadden wrote:

    Paul, yes, I do have a (well worn) copy of PJR. I'll go out tomorrow and get the dimensions you need. I will have to do a touch of guesstimating because the bury will decrease about a foot (oh sh*t I'll need to become more conversant in metric) and the LAP will show a corresponding increase.

    It is my feeling that all battens, the yard and boom will all be too short. I see the leech winding up pretty close to where it is now and the luff moving forward a considerable distance.

    Jeff, don't worry about becoming metric, I'm equally at home with good King Henry's thumb even though it's not a rational way to measure things......

    Ok, then we do not have to worry about the old rig. I take it that you'd like an "Arne" style sail? The important mast measurement at this stage is LAP so that I know how much mast we have to work with.

    As to PJR, best you are familiar with it as the terms used for the rig are defined there. Also it's a good guide for your re-rigging. PJR is still very pertinent for cambered sails as apart from the Hong Kong parrels, everything is spot on.
  • 20 Oct 2011 01:17
    Reply # 727234 on 727017
    Deleted user
    Paul Thompson wrote:Jeff,

    I created a new folder  "NewRig" under your "Seablossom" folder. Have placed the sail plan that I found and a word document that may be of interest to you.

    The sail plan is just a gif but I'll import it into Qcad and turn it into a proper sail plan with CLR and CE for you. Once that is done we can start looking at a junk rig.

    It might take me a day or two to get round to it as this must be a strictly spare time project but I'll get it done before Saturday, latest.

    Do you have a copy of PJR? Can you give me the dimensions of your mast - LAP, bury and dia as we will have to base the new rig around that. Also batten and yard lengths so that they can be reused if at all possible.

    You can email me direct if you like. The email address is in my profile.

    Members, a question: would you prefer to have me email Paul direct, taking this conversation off the list, or would you prefer that we do this planning out here where all who are interested can follow it?

    Paul, yes, I do have a (well worn) copy of PJR. I'll go out tomorrow and get the dimensions you need. I will have to do a touch of guesstimating because the bury will decrease about a foot (oh sh*t I'll need to become more conversant in metric) and the LAP will show a corresponding increase.

    It is my feeling that all battens, the yard and boom will all be too short. I see the leech winding up pretty close to where it is now and the luff moving forward a considerable distance.

  • 19 Oct 2011 20:23
    Reply # 727017 on 726309
    Jeff,

    I created a new folder  "NewRig" under your "Seablossom" folder. Have placed the sail plan that I found and a word document that may be of interest to you.

    The sail plan is just a gif but I'll import it into Qcad and turn it into a proper sail plan with CLR and CE for you. Once that is done we can start looking at a junk rig.

    It might take me a day or two to get round to it as this must be a strictly spare time project but I'll get it done before Saturday, latest.

    Do you have a copy of PJR? Can you give me the dimensions of your mast - LAP, bury and dia as we will have to base the new rig around that. Also batten and yard lengths so that they can be reused if at all possible.

    You can email me direct if you like. The email address is in my profile.
  • 19 Oct 2011 20:15
    Reply # 727010 on 726309
    Jeff, as you seem to be a man of energy and resource and still have some enthusiasm left for the project, I would very strongly recommend that you get it right now, before you start on the interior joinery etc.  Especially, if moving the mast would actually improve the way the interior works.  Junk rig is very forgiving, but if you are going to re-design, I would agree with Paul that you might as well do it as well as you can.  There are lots of people on site who will help, and reading PJR helps you understand the why as well as the what.

    Someone Close To Me reckoned he could knock out mast, partners, etc in about 3 weeks.  Of course, he's never done it, but it's true that making the partners, reinforcing, cutting a new hole and filling in the old are not individually large jobs.  Getting the fittings made up should not be a big issue in a farming community, where, I would guess, there are plenty of chaps happy with steel and welder.  And you already have the rig.  Go for it - if nothing else, it will give you something to do when you've had enough of your engine!
  • 19 Oct 2011 13:46
    Reply # 726762 on 726549
    Deleted user
    Paul Thompson wrote:Jeff,

    If you do not have one, I just found a sail plan with profile on the net. Can upload to Box if you want.

    Please do so. Thanks very much!
  • 19 Oct 2011 05:27
    Reply # 726549 on 726309
    Jeff,

    If you do not have one, I just found a sail plan with profile on the net. Can upload to Box if you want.
       " ...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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