Lowering the Mast

edited March 2018 in General
I have been asked by a member in Wales for advice on mast lowering an 8M Catalac? 
I think there were some instructions in a 2004 newsletter?
Bob Freeman kindly provided this small image to help, but any additional notes or discussion would be appreciated. 



Mast lowering

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    edited April 2019
    Update: Bob Freeman and Peter Gimson were both at the AGM yesterday, so I asked about master lowering. 

    There is an excellent set of notes here: (from the Catamaran Site documentation) .

    I think this is a copy of the article Bob originally wrote. BUT Peter said that there are some
    differences in mast tabernacles depending on when the boat was built, so it is possible that the notes may not be relevant if yours is a
    different set-up. 


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    Hi Dagnal, the first thing to confirm is what type of rig has the boat got, if the stays come right down to the deck, they would have to be modified to add the extra rig support so as to be able to add the asymmetrical frame, if that’s the right word, for lowering the mast..Bob
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    I finally managed to get a good photo of the optional Inner stay rig support fitting on some of the boats. This arrangement  means that the inner stays and the mast pivot are all in a line, so when the mast is lowered, the stays hold the mast from falling to either side. Not all boats have these raised stay rigs, but if you do, it makes mast lowering much easier. 
     
    Catalac 8 shrouds

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    Just me being a pedant but i think you mean shrouds not stays.
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    Whoops!!
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    I have a Catalac 9M that does not have the Shroud Support Frames. Does anyone have any for sale or details of where I could get some or a work around. Thank you!
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    I would imagine that you might be able to get some made by a specialist stainless steel workshop?
    The key part would be getting a bottom plate with the same hole pattern as your existing shroud fittings, and then getting them to weld up the inverted u with a new shroud fitting for one shroud mounted at the same height as the mast pin.
    Sound like a fair bit of work I must say.!

    The other work around was one i saw on a smaller cat, where it was suggested that the shroud that was planned to hold the mast from sideways motion during the drop should have a second (or more) secondary shroud connected to it at the pin height and then down to the deck making an inverted Y. That way the shroud should stay able to keep the mast from falling to one side as one part of the y should remain in tension.. However, it depended a lot on the geometry as you can imagine.

    A long time ago two of my stronger friends helped me drop the mast of my hirondelle (22ft), the idea was two held the side shrouds to hold it from falling sideways, and one (me) had a block and tackle to release the forestay. (Slowly). It went ok except that geometry beat the forestay block and tackle at the end of the drop. My wife (watching from the marine pontoon) fortunately caught the end of mast as we lost control as it neared horizontal.. So I would suggest a four man team if you try that approach! Or simply pay someone with a crane which is what I have done since then,
    Hope this helps, and let us know what happns!
    Dagnall
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    Hi All, I am a newbie Catalac 9m owner having bought it a month ago... then last week the mooring broke and she ended up on beach with a damaged starboard hull...

    SO now I need to drop the mast so she can be craned onto truck and taken somewhere for fixing. Advise please! In particular:

    1. I don't have the lowering pole but think that's OK as I will just use the crane with a strop under the spreaders. I do have the wires which might help in stopping sideways movement but this would require the exact size pole I think. Should I bother trying to make one?

    2. I don't have any crutches but can source wood to knock one up. I'm thinking a big fat notched 4 x 8 at the stern sitting just outside the rail on the swim platform, with 2 guys drawn down to the aft cleats.

    3. As for the front, not sure if mast can stay in the Tabernacle while being transported? I guess it will be too long and put pressure on base of mast. So... I was thinking a couple of 2 x 8s screwed to make an X resting on foredeck, then a loop of rope holding the bottom of the X from slipping apart. Thoughts?

    4. Can it just sit on flatbed? the bottom of the starboard hull is missing so at very least it will be leaning over to one side... but even then, the hulls look quite rounded so does she need supporting fore and aft? or even lifting from the central section so hulls are of the ground?

    Thanks for advice.
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    I hope you have managed to recover your cat to safety and the damage is fully repairable the very best of luck in the new year.
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    Too lat to advise but normally a crossed boom crutch is used and the mast rests in the boom crutch an the tabernacle , care with the roller foil tie to the mast in several places it is a good bit longer than the mast so additional support of 2 by 2s at each end is useful
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    Just found this excellent photo of a mast drop on the Facebook pages..

    mast drops

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