Converting a Westerly Nimrod to Junk Rig

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  • 18 Jul 2017 03:41
    Reply # 4981654 on 4550835
    I know the feeling all right! Congratulation!
  • 17 Jul 2017 23:47
    Reply # 4981397 on 4550835

    First sail today!!

    Someone took a picture of the boat but I have not received it yet. Too much lee helm to start with but an adjustment at the tack of the sail seemed to sort that out. I could do with some advice, please, about diagonal creases when on port tack but maybe you would like to came and have a look David as you suggested? I will email you...

    I think there will be some tweaking of the sheet spans and perhaps some other bits, but it feels right and able to sail well - close to the wind too. Many thanks to all who have helped and advised over the last few months. I will post pictures when I get them.

  • 13 Jul 2017 12:54
    Reply # 4974359 on 4550835

    To go back to your comment, Phil, I envisaged the round steel clamp being thin enough to be bent around the slightly rounded corners of the square tabernacle. But the trouble with buying things on the internet is I can't be sure the steel is thin enough to bend around the corners - that's why I moved on to the idea of woven strap and ratchet clamp.

  • 13 Jul 2017 12:48
    Reply # 4974354 on 4550835

    Thank you, Phil and David for your interest and comments. At the moment the mast is being held up with a couple of ratchet clamps and now that I have found that there are stainless steel ones it is hard for me to see why anything else would be better. Because the mast sits snug in the tabernacle I would be interested to know why this would not work as a permanent arrangement? The only issue I can see is if the considerable pressure put on the straps could actually crack the wood and presumably the idea of having a saddle would spread the pressure as everything is tightened up. Is there a drawing anywhere of what you suggest, David?

  • 11 Jul 2017 08:17
    Reply # 4967123 on 4550835

    Yes, two pieces of M8 stainless steel studding, running fore and aft tight up against the sides of the tabernacle, connecting two strong bridging pieces, is the way to go. Strong hardwood should be OK, with an internal saddle to mate with the tube.

  • 10 Jul 2017 14:50
    Reply # 4959251 on 4550835

    I don't know if I missed any pics of your tabernacle or if this could be helpful. I had trouble picturing the round clamp you linked around a tabernacle. Anyway, here is something I used. The principle should be similar whether at the top or bottom.

    The spruce mast in a wood tabernacle on a former 23ft boat pivoted at the top of the 2 sided tabernacle. The bottom of the 27 ft mast was square and clamped in. The mast, tabernacle and the pivot through the mast arrangement were designed back in '94? by Phil Bolger. He did not detail a clamp for the bottom. I used angle iron, front and back drilled to accept bolts that ran fore and aft along the sides of the tabernacle, clamping the mast. A round aluminum mast might call for something inside the angle iron formed to the mast.

    As an aside, along with the mast plans Mr Bolger wrote that he didn't have experience with the rig but "some well respected people swear by it."  This was before he tried his hand at his version.




  • 10 Jul 2017 10:52
    Reply # 4958974 on 4550835

    Tabernacle clamp??

    Almost there now with my rig but have not yet got a clamp for the top of my wooden tabernacle. Any suggestions welcome. I wondered if anyone has tried a band clamp with an over-centre clamp as here: https://www.protex.com/27-HT130-175SS-130-175mm-diameter-hi-torque-rigid-claw-stainless-steel-quick-release-bandclamp-natural Maybe best to get one made specially but I'm very much aware that it needs to be very reliable - mast a bit long and heavy and predicted - and preferably wrapped around the whole thing. I looked at JRA mag 61 but nothing there to suit my situation: aluminium mast in wooden tabernacle with pivot bolt at the bottom.

    Hoisted the sail for the first time last night (mast just lashed in place for now) but too dark to take any pictures. Happy with the tabernacle but it's about 3cm further forward than it should be so I hope that's not too crucial. Can't wait to re-launch the boat and try with some wind in the sail. Hoisting and lowering the sail is very smooth.

  • 26 Apr 2017 21:42
    Reply # 4785556 on 4550835

    If anyone still following this....? I have now picked up the completed sail from David Tyler and it looks very well made. Many thanks again, David, it was good to be able to collect it with our visitors and go for a good long walk around your part of the county. Now picked up my turned wooden end stops, trimmed the battens and now looking for some suitable screws - short with a broad enough head - to attach the sail. 

    Also now making a list for the rigging, having drawn, measured and estimated as best I can. Still not quite sure how to make the parrels and attach, but most likely straps with buckles as David suggested. I am very busy at work at the moment but trying to do something each day to progress the project even if just a little bit. The boat now back in position next to the lake so I've still got my space and I hope it will be soon that I get to make that big square hole in the deck for the tabernacle.  

  • 30 Mar 2017 18:10
    Reply # 4702718 on 4550835

    I was puzzling over what to use for fendering for the yard. As I use a sleeve for the yard, it has to be something that can be sewn on, and it ought to match the cream colour of the cloth. I hit upon the idea of buying a leather belt blank, 3mm thick and available in widths up to 3in and in various colours as well as natural.

  • 23 Mar 2017 19:30
    Reply # 4685931 on 4550835

    Many thanks David, for the progress report and also for the revised mast angle. I can level the boat using the jockey wheel adjustment then get that right. Mast tube now arrived and Richard and I are getting some hardwood for the tabernacle. I now need to look more closely at the sheeting perhaps.

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