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Old Stayed Mast

  • 17 Jan 2024 04:14
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    Reply # 13302045 on 13294427
    Anonymous member (Administrator)

    If I recall correctly Alex used the old mast too, in its, old position with chainplates etc - as a crane or lifting point for stepping the new mast. Before you get rid of the old mast, don't overlook that possibility Robert!
  • 17 Jan 2024 03:40
    Quote
    Reply # 13302032 on 13294427
    Anonymous member

    Hi Asmat,

    I got some use out of the original mast by using the top section for a yard. It was a light narrow tapered mast with an external track and made an excellent yard. The replacement mast is an aluminium  80mm  tube from my local supplier.

    Cheers 

    Last modified: 17 Jan 2024 03:42 | Anonymous member
  • 04 Jan 2024 11:01
    Quote
    Reply # 13296812 on 13296758
    Anonymous member
    Anonymous wrote:
    Anonymous wrote:

    Is the old (22 foot?) stayed mast capable of handling the loads when I switch to the unstayed mast needed for the junk sail? It will be well supported in a tabernacle supporting at least 15% percent of it.

    If not, what are suggested methods of strengthening the old hollow aluminum mast or should I plan on building a new one altogether? 

    Thanks,

    Bob Rosell

    24' Bayliner Buccaneer 240 project

    The old one is not suitable, you need a new mast. One that is designed to be used unstayed and that is round in section.

    Sections of marconi rig masts make good yards. I've twice done so successfully.
  • 04 Jan 2024 02:24
    Quote
    Reply # 13296758 on 13294427
    Anonymous member
    Anonymous wrote:

    Is the old (22 foot?) stayed mast capable of handling the loads when I switch to the unstayed mast needed for the junk sail? It will be well supported in a tabernacle supporting at least 15% percent of it.

    If not, what are suggested methods of strengthening the old hollow aluminum mast or should I plan on building a new one altogether? 

    Thanks,

    Bob Rosell

    24' Bayliner Buccaneer 240 project

    The old one is not suitable, you need a new mast. One that is designed to be used unstayed and that is round in section.
  • 04 Jan 2024 02:22
    Quote
    Reply # 13296757 on 13295017
    Anonymous member
    Anonymous wrote:

    Perhaps you could use the existing mast cut down for the top section?

    Remember that any holes in the existing mast are potential points of failure, so the useable lengths are quite short.

    BM masts are totally unsuitable for junks.
  • 03 Jan 2024 04:38
    Quote
    Reply # 13296323 on 13294427
    Anonymous member

    Mark, we've had this discussion countless times and as Arne said, alloy masts made for Bermudian rigs can't be recycled for a junk rig on the same boat. The section is wrong and they are full of holes.
  • 29 Dec 2023 11:09
    Quote
    Reply # 13295017 on 13294427
    Anonymous member

    Perhaps you could use the existing mast cut down for the top section?

    Remember that any holes in the existing mast are potential points of failure, so the useable lengths are quite short.
  • 29 Dec 2023 09:18
    Quote
    Reply # 13295010 on 13294427
    Anonymous member (Administrator)

    Robert,
    I’ve yet to see a stayed mast for a Bermudan rig, which can be used as an un-stayed  mast for a junk rig or cat rig.
    An un-stayed mast must be much stronger against bending at deck level than a stayed mast. I suggest you make a new mast and then try to sell the old rig. I’ve been able to sell some of my old Marconi masts (and sails) for real money.


    I would look for aluminium tubes of Ø125-150mm and wall thickness of 4-5mm, and either make the mast from two tubes or as a hybrid aluminium-wood job, which I have used a couple of times now ( http://goo.gl/WE36w3  ). Try to keep the weight of the mast at (or below) 3% of the displacement of the vessel (˂54kg)
    You may also be lucky and find a lamp post of suitable size.

    Happy New Year and good luck!

    Arne


    Last modified: 29 Dec 2023 09:24 | Anonymous member (Administrator)
  • 26 Dec 2023 20:51
    Quote
    Message # 13294427
    Anonymous member

    Is the old (22 foot?) stayed mast capable of handling the loads when I switch to the unstayed mast needed for the junk sail? It will be well supported in a tabernacle supporting at least 15% percent of it.

    If not, what are suggested methods of strengthening the old hollow aluminum mast or should I plan on building a new one altogether? 

    Thanks,

    Bob Rosell

    24' Bayliner Buccaneer 240 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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